Wednesday, July 31, 2019
Corporate Identity: the Concept, Its Measurement and Management
ââ¬Å"Corporate identity: the concept, its measurement and managementâ⬠by van Riel, Cees B. M. and John M. T. Balmer (1997) tries to clarify the complex concept of corporate identity. The authors review three main developments in the topic that are graphic design paradigm, integrated communication paradigm and interdisciplinary paradigm. The article also describes corporate identity management and various methods that can be used to reveal the actual corporate identity such as laddering technique and the Rotterdam Organizational Identification Test. However, according to the authors, the problem in establishing the desired corporate identity is that available methods were developed for the positioning of product brands rather than the corporate brand. The authors conclude that a favorable corporate identity is one of an organizationââ¬â¢s most important assets and for that reason is worthy of constant management attention. I think a great example of how important the corporate identity is for the overall organizational success is the Muzak case in Argentiââ¬â¢s book Chapter 4. In 1997 the company was so insecure about its own identity that its business cards and trucks often looked more like the vendorsââ¬â¢ identities than its own. Feature article aboutà Production Management Also the brand looked different in every region and even between franchisees and sales offices. The company was losing cash, had horrible corporate culture and negative growth. Developing a unifying symbol for the company (that went on everything from business cards to trade shows and sales materials) and bringing Muzakââ¬â¢s brand message to a new level, helped the company to restore its confidence, to change public perception, to grow financially and to attract both new clients and new talented employees. I think that the case illustrates how an appropriate or outdated corporate identity can damage firmââ¬â¢s financial performance and companyââ¬â¢s success. Thus, management should not overlook the importance of the corporate identity but rather learn how to shape and manage companyââ¬â¢s identity and differentiate the company through it.
Tuesday, July 30, 2019
Family Health Assessment Essay
Introduction Family is considered the natural and fundamental unit of the society. The family members make up the family as a structure. Family includes members of different age group from newborns to elders. The familyââ¬â¢s activities and reactions influence the patterns of the family as a whole (Edelman, Kudzma, & Mandle 2014, p.2014). The ultimate goal of the nursing is to expedite the health of the family. Family health assessment defines the assessment of actual and potential problem of individual (Gordan 1994). The goal of nursing is giving direct and indirect care to the person and community in terms of assessment, diagnosis, nursing interventions, implementation and evaluation. Historically conceptual models are using to assess the family in nursing practice. Health assessment included with subjective and objective data. Here Gordanââ¬â¢s 11 functional health assessment patterns are using to assess this family. The Gordonââ¬â¢s functional assessment patterns are a valuable tool for assessing and evaluating the familyââ¬â¢s traditional health patterns, and permitting the health care provider to look at the inside of the overall health of the particular family. Family Background The family I selected belongs to an African ethnic group. This essay discuss the health pattern and functions of Nyennohââ¬â¢s family. This is a nuclear family with mother of age 32 father 34 and three children of age groups eleven years old boy, nine years old girl and five years old boy. Both of the parents are working, and splitting their days to taking care of the children. Mother is working as a nurse at the hospital for three days and father working as a respiratory therapist at the neighborhood hospital forà three days. They all going to neighborhood school. Among their three children nine year old girl is diagnosed with sickle cell anemia since her birth. They are Christians and true believers in God. ââ¬Å"Values and Health perception means the level of the individualââ¬â¢s level of commitment to maintain healthââ¬â¢Ã¢â¬â¢ (Gordon 1994). Read more:à Essays About Assess Individual in Health Care This particular family is very efficient to manage their day today living effectively regardless of the health issues. They both in health field, they know how to manage the condition and their perception of sickle cell anemia is excellent. Assessment of nutritional status is the intake of healthy eating and drinking pattern and adequate amount of healthy food. Types of food including the growth and development of the family and restrictions and concerns about their perception of health. They maintain healthy eating habits through having restrictions. Their main food items include vegetables, rice, fish and fruits. They are very attentive to balance their diet to prevent anemia as a family. Parents always encourage kids to eat healthy food and drink plenty of water to keep them healthy especially the girl with sickle cell anemia. Adequate rest and sleep is essential to maintain good health. Inadequate sleep may lead to physiological problem and psychological problems. A person should sleep average 6-8 hours at night. Nyennohââ¬â¢s family has no sleep deprivation. They go to bed at 9 oââ¬â¢clock and get up 6 oââ¬â¢clock in the morning. They have a good sleeping pattern so they never use any medication to induce sleep. The elimination pattern is varies in individual. This family is not experiencing any bladder or bowel problems. There is no evidence of diarrhea or constipation in the family. Bowel movements and regularly in every day. Parents always take special attention to the children to avoid constipation especially girl with sickle cell anemia to prevent any cuts and bruises. To maintain the concept of health activity and exercise pattern are the effective indicator of individualââ¬â¢s life. This family is very active. They are very particular about activity and exercise. They go for walks everyday as a family 30 minutes in the neighborhood or park. The girl with sickle cell has some restrictions to away from vigorous activities to prevent any dehydration or joint pain or cuts or bruises. She is a very knowledgeable girl about her illness.
Monday, July 29, 2019
The Observation Instrument Paper Essay Example | Topics and Well Written Essays - 750 words
The Observation Instrument Paper - Essay Example This renewed interest has been stimulated by the education accountability movement, the teacher minimum competency movement, and the continuing emphasis on excellence in education Contemporary teacher classroom performanceâ⬠. (Carolyn Lavely, à Neal Berger, à Joseph Blackman, à John Follman, à Jan McCarthyObservation instruments Education, à Summer, 1994 à - retrieved on 4/11/2008 rethttp://findarticles.com/p/articles/mi_qa3673/is_/ai_n28646693) The class room teacher observation instruments will help a teacher for a diagnosis about his level of teaching. How far a teacher is effective for the students in the classroom? What are the defects of the methodology implemented by the teacher? How can a teacher correct himself? Which errors should be corrected and which should be ignored? Who should be correcting the errors? Is it appropriate to correct the mistakes in the classroom itself? These questions can be answered in order to improve the level of teaching with the help of observation instruments. The most commonly used classroom teacher observation instruments are ââ¬Å"Classroom Observation Form Open Ended ââ¬â (Form A), Classroom Observation Report, Classroom Observation The observer will check the development of learning materials, Use and selection of instructional materials, the learning climate, variety of materials used, preparation of the class session, method of instruction and student participation, student responses and feedback, learning difficulties etc. using the Classroom Observation Form Open Ended ââ¬â (Form A). The observer can study whether the objectives for the specified class given or not. He can also analyse the outcome of the instruction. He can also analyse the appropriateness, quantity and quality of the instructional materials used. The class climate also can be analysed using this instrument. The overall activeness, the student attitude towards the topic and the teacher, their participation and the teacherââ¬â¢s
Sunday, July 28, 2019
Compare and Contrast 2 Quality Management Theories Research Paper
Compare and Contrast 2 Quality Management Theories - Research Paper Example The basic contention behind the implementation of either Six Sigma or lean techniques is to increase the output from existing processes and methods. It must be taken to note that Six Sigma applies more to bolstering output by removing causes behind defects through the implementation of measurement and statistical techniques (Tennant, 2001). On the other hand, lean techniques consist largely of methods that are aimed at improving processes by looking at existing loopholes and reacting accordingly (Taylor, 2008). Need for Lean Techniques and Six Sigma in the Healthcare Sector Lean techniques are not based in large part on quantification unlike Six Sigma that dwells on quantifying defects for their removal and noting process improvement levels. In recent years, both Six Sigma and lean techniques have been used increasingly in the healthcare sector to deal with existing and emerging challenges. The increasing cost of healthcare and visits to doctors have meant that it is required to opti mize healthcare access costs through the application of Six Sigma and lean techniques. However, it must also be kept in mind that healthcare applications involve critical assessments that might end up with permanent damage to the patientââ¬â¢s health or might even result in a fatality (DelliFraine, Langabeer, & Nembhard, 2010). In such a case, the advantage of applying either Six Sigma or lean techniques is removed altogether as the customer is effectively permanently damaged or removed from the service list. On another note, it must be considered that the failure of Six Sigma or lean techniques in the manufacturing, services or other sectors may result in nothing more than another defect not involving loss to human beings. However, in the case of the healthcare industry, any failure of the Six Sigma or lean techniques regime could possibly lead to a human fatality which is not desirable. Therefore, the application of either Six Sigma or lean techniques requires differentiation b etween critical and non-critical applications in the healthcare sector. Requirements of Quality Management Philosophy in the Healthcare Sector The healthcare industry effectively requires a technique that is not harmful to the customers. In case that Six Sigma is applied to the healthcare industry, it would involve taking measurements as a vital method of producing baselines and quantifying output levels to see how processes have improved. As far as the manufacturing sector is concerned, Six Sigma is effective because the same manufacturing processes are being repeated to manufacture the end product. The continuous nature of the measurement ensures that Six Sigma can be applied across the board to the entire organization. Even if the services industry is considered, it becomes clear that similar end services are being provided to customers resulting in insightful measurements for Six Sigma improvements. However, the case of the healthcare sector is altogether different since any hea lthcare organization is servicing customers with multiple differentiated needs at the same time. For example, the same hospital could be dealing with emergency trauma patients as well as with cardiovascular disease patients. The wide range of processes required to satisfy the end customer do not favor Six Sigma for measurement in the healthcare sector (Taner & Sezen, 2007). Six Sigma In the case of the
Saturday, July 27, 2019
The Interpretation of Marketing Strategy on the Rise of Wong Lo Kat Essay
The Interpretation of Marketing Strategy on the Rise of Wong Lo Kat - Essay Example According to the research findings, it can, therefore, be said that there are more than 2000 Chinas time-honored brand enterprises recognized in China, mainly concentrated in the catering trades, pharmaceuticals, and other industries. However, according to the current statistics, about 70% of Chinas time-honored brand enterprises have disappeared, while the majority of surviving the situation is a precarious business, and only 10% of the good economic form of scale is very small. As one of the old pharmaceuticals industries, Wong Lo Kat (whose old name is Guangzhou Yangcheng Pharmaceutical Co, Ltd) is a booming company. It reached 1.5 billion, plus canned drinks, the total sales of which exceeds to 300 million CNY in 2003. From 1999 to 2003, the average growth rate of Wong Lo Kat was more than 25%, which is labeled as the success model of the combination between the traditional workshop and modern business, as well as a successful example of other traditional pharmaceuticals enterpri ses. Herbal tea is one kind of the teas which are formed through the Chinese herbal medicine in the regions of Guangdong and Guang Xi. Generally speaking, it has the function of clearing heat and dampness. Wong Lo Kat is the most famous herbal tea among the old herbal teas. As time has gone by Wong Lo Kat has also become famous in the world. Wong Lo Katââ¬â¢s development had its chance and special features to expand further. It created the transformation from a small company to a large company in one year. In its first stage, it faced some problems such as the confusion between the beverage and herbal tea and so on.
Friday, July 26, 2019
Through referenced literature and examples, examine the range of Essay
Through referenced literature and examples, examine the range of theories of what an entrepreneur is and how they contribute to the economy and society - Essay Example the term is applied, certain elements are constant: entrepreneurs are persons of certain psychological qualities and unique abilities who, through these qualities, contribute wealth and energy to an economy and social benefits beyond business. There are a whole range of theories as to what makes an entrepreneur. Regarding the assertion that entrepreneurs are born, not made...Shane (2010) asserts this may be only half true if one is speaking about genetic traits. One of the more modern empirical investigations was done by Collins and Moore and published in their exceptional analysis in The Enterprising Man. (delete words) Seeking to prove their theory that entrepreneurs represents certain psychological traits, they employed the Thematic Apperception Tests (TAT) test. The subject, presented with a set of cards with human figures in a variety of settings, creates a story including elements describing the event shown; what has led up to it; what the characters in the picture are feeling and thinking; and the outcome of the event. The test assumes certain results about the subjectââ¬â¢s personality in relationship to entrepreneurshipââ¬âworkaholics rarely every satisfied; patronizing with subordinates; suspect and rejecting of authorityââ¬âthat within the Collins and Moore psychological profile theory represents early childhood relationships with adults in the entrepreneurs life. (Roberts, 1991: 50). Throughout other studies, however, while there appears to be a clear relationship between entrepreneurship and achievement motivation across a number of measurement instruments (Edwards Personal Preference Scale, the Mehrabian Scale, and the TAT (1) Sexton and Bowman (1986) found inconsistencies that challenge the blind acceptance of this theory, and that ââ¬Ëstudents and nonstudents (entrepreneurs, potential entrepreneurs, and nonentrepreneurs) differ on a variety of characteristics which are supposed to be stable across time and situations according to personality
Science Lab 2 Report Example | Topics and Well Written Essays - 250 words
Science 2 - Lab Report Example Using MuseLAB, a log will represent the hurricane and separate six red lizards from the main group present in the mainland. Afterwards, the log shifted toward an island distant from the mainland and represented by a wet patch of grass and undergrowth. This shift was another six red lizards to the wet patch of grass and undergrowth. The MuseLAB software will animate the changes in the colors of the two isolated populations as they differentiate in line with the conditions of the new surroundings. Animations of the different colors of both groups of lizards should account for a physical trait capable of being passed down to the next generations. The offspring of the six red lizards maintained their cover in the mainland even after three generations. On the other hand, the offspring of the other group of lizards in the island slowly adopted green bodies after three generations. The six red lizards use this body color to mimic a different species of extremely poisonous lizards within the same ecosystem. The hurricane did not separates these two spaces thereby allowing the offspring to maintain the red color three generations down the line. In contrast, the brown lizards adopted a green body color to achieve optimal camouflage in a surrounding with thick green vegetation and
Thursday, July 25, 2019
Strategies of Noki Company Case Study Example | Topics and Well Written Essays - 2000 words
Strategies of Noki Company - Case Study Example It is evidently clear from the discussion that Noki Company is offering mobile phones, smartphones, mobile computers and networks to customers worldwide. In the light of technological changes brought about by modernization, research and development, this study will attempt to find out how Noki Company deals with the macro environment changes that affect its business. Part 1 of the study presents a PESTLE analysis, Part 2 is a SWOT analysis and Part 3 is the conclusion. Before the1980s, the telecom industry operated under a monopolistic environment, but for different political-economic reasons. US, Japan, and the UK ended this era of monopoly and allowed new players in the industry. Radical changes have been instituted since then, and liberalization has invited several telecom companies to participate in the telecom industry. The government of Finland has been supportive of technological changes. In the 1980s it has veered away with agricultural products and took the position to be on e of the leaders in the technology field. Thus, during this period Nokia has established a strong alliance with the government and has now be converted into the number one corporation in Finland. IT has turned out to be the third source of revenue for the country. The mobile phones introduced by Nokia developed to be an important tool in connecting people together around the world. Noki Company has three main core businesses, the Nokia Mobile Phones, Nokia Networks and Nokia Ventures. Noki Company is considered a very important employer; likewise, it also plays a vital role in the financial system in Finland financial market. It is a publicly traded company listed in NYSE, Helsinki and Frankfurt. The company has established branches in 120 countries worldwide employing 128,445 personnel. In 2009, Noki has an operating profit margin of 5.0 % a market share of 37% and has increased the countryââ¬â¢s GDP.Ã
Wednesday, July 24, 2019
Video Review Control Room Essay Example | Topics and Well Written Essays - 1000 words
Video Review Control Room - Essay Example It clearly narrates the motives behind that information gathering and the way the reporters of the news agency strived to present it. The documentary also presents the motives that the US army had created behind the attack that they planned on Iraq. CHANGE OF PERCEPTION ON THE WAR ON IRAQ. The documentary highlighted quite a few points that I, as general public was unaware of earlier. It may also have owed to the propaganda by the US dominated news agencies that the side of the story narrated by the video under discussion was earlier not known to the masses. The only way a person from the general public would look at the war was just what was imposed upon them by the American Media. The video shows that the American media created a hype before the invasion. The military used its nationââ¬â¢s media to tell the general public that Saddam Hussain was a threatening figure. The video narrated that revenge was induced in the American public by increasing the level of danger sometimes fr om yellow to Orange and then to danger level. These terminologies convinced the general public of the USA that what their president was authorizing was just the very right thing to be done at the moment. Thus, the overall scene before the initiation of war was that the American public got threatened from the existence of Saddam Hussain. He was portrayed as being capable of possessing and operating weapons of mass destruction that was a threat to the United States of America and to the entire world on the whole. It was even propagated that Saddam could give those weapons of mass destruction to Osama bin Laden or to anyone else. Instead of letting the American public realize what war actually meant and what was the exact meaning of attacking a Sovereign nation the propaganda overshadowed their realization. This video, on the other hand told the other side of the story. It told clearly that the Americans formulated information in a manner that it would go in their favor. As quoted by a n Al-Jazeera spokesman, ââ¬Å"We want to show that every war has a human cost. We are Arabs like them. We are Muslims like them we are with the common Iraqi man. We care for them.â⬠(Control room, 2008) The point of view about the Iraq-US war has changed in the perspective that thousands of innocent people including women and children both. Thousands of people lost their homes. Numerous innocent of civilian families died. All this was done at the cost of enforcing democracy and that too, for the public that was being devoid of their very basic right of shelter and food. STRENGTHS AND WEAKNESSES OF THE VIDEO. The weaknesses of the video are the weaknesses of the organization itself. The organization was an Arab based organization Owing to that they had an emotional attachment with the Iraqi nation as a whole. Though not biased in favor of the Saddam regime the reporters and other team members of Al-Jazeera had their hearts connected to the civilian public that were under the Am erican oppression. Thus they can be termed as being biased in favor of the Iraqi common man. As quoted in the earlier part of the document a spokesman of the Al-Jazeera network quoted that since he was born in Iraqi and grew up in Iraq he had his heart with the Iraqis and recognized well what they talked like and how they felt. In line of the American military and government however, the weaknesses of the organization were that they werenââ¬â¢
Tuesday, July 23, 2019
Discussion 3 Essay Example | Topics and Well Written Essays - 500 words - 2
Discussion 3 - Essay Example To mean, it takes me back in time to an era when sculpting as an art form was in its artistic infancy. The sculpture has a raw look that boggles the human mind. Cady Noland provided us with an extremely descriptive look at an installation art piece with her installation piece ââ¬Å"This Piece Has Yet To Be Titledâ⬠from 1989 on page 173 of our book. Her work defines the parameters by which an installation is defined as artwork. It is installed at an exhibition site that used materials of physical features that already exist on site into the art piece. Nolands piece is a modern artistic expression that the sculptor wished to convey by using modern materials such as beer cans and the like which comprise the whole of the structure including the American flag. You have a very easily understandable definition for a sculpture in the round. Indeed it is a free standing art piece and the fact that you chose Obus as the accompanying physical definition shows that you have a deep and clear understanding of a sculpture in the round. By showing the little girl running under the art work, you clearly define that an art form in the round is one that has to be viewed from many angles and is defined from each angle that we look at it from. It is such a coincidence that we both chose to define an installation with the same art piece. Your unique connection between the location and the materials used clearly illustrate the definition of the word. Your definition of a sculpture in the round is a cut a paste job.The mere fact that you were able to define both the sculpture in the round and an installation in the same sentence proves that you did not take our lesson as seriously as you should have. Although you also chose to define Obus, you did not say anything that proves that you studied the art piece. You did not care to explain the three dimensional aspect unique to the round sculpture. Did you
Monday, July 22, 2019
Causes of Civil War Essay Example for Free
Causes of Civil War Essay You hear the word civil in such terms as civil rights, civilian, civilization and civil liberty. All are related to the concept of a common citizen and a member of society. So, a civil war is a war between citizens representing different groups or sections of the same country. That is how the Civil War in the United States between 1850-1860 started. The distinction of ideas about slavery between the South and the North was pretty much the main cause of the war. However if we look at the details carefully, the economic forces in the South combined with the cotton plantations and the reactions to abolitionism in the South were the main factors that caused the Civil War. Economics was an important cause of the Civil War. Economic reasons affected and still affect almost everyone around the world. The economy, simply money gives people a lot of power, which causes a lot of problems between people, and makes everything more complicated. Thatââ¬â¢s pretty much why it was a big deal with the starting of the Civil War. It started around early 1800s with the harvesting of cotton in the South (Holland, ââ¬Å"The North-South Divideâ⬠). Harvesting of cotton required the labor of many people with the invention of cotton gin. So, the way of making a lot of money out of cotton was to find enough laborers to work with. Thatââ¬â¢s how slavery became essential for the Southââ¬â¢s economic future because it was a great source of laborers. In this way slave and cotton plantation owners were making a lot of money and expanding their plantations and of course the number of slaves they owned, which made slavery expand in the South pretty quickly. Also, people who owned slaves and the cotton plantations were mostly the men of social and political power, and of course they didnââ¬â¢t want to lose their power. They were getting richer and richer every day with the expanding plantations with the invention of the cotton gin. For example, Jefferson Davis and Robert E. Lee were some of the most powerful slave owners of that time. Davis had a great political career, and Lee was an important commander and general in the army. They and the other slave owners got their power from slavery and didnââ¬â¢t want to lose that power. While slavery kept expanding in the South, the North didnââ¬â¢t like that. The North was against the expansion of slavery, an opposition captured by Free Soil Ideology. Their main purpose was opposing the expansion of slavery into the western territories, because they saw it as a corrupt economic system. This made the South see the Free Soil movement as a threat of making slavery totally disappear. The South was threatened because they thought this ideology in the North would keep expanding and finally free all the slaves they owned, and ruining the Southern economy (Brinkley). While this happened in the South, the idea of abolitionism kept spreading through the North. Another cause of divisions between the North and the South was the abolitionist movement. The South saw this movement as a threat from the North, and becoming suspicious of them. John Brown was clearly the most significant radical abolitionist at that time. He fought slavery for years but his most significant action took place at Harper Ferry, Virginia. Brown seized federal arsenal, and he hoped the slaves would come to Harpers Ferry and march through the South, fighting slavery. This way he scared the South, because a slave rebellion had always been the regionââ¬â¢s main fear, and therefore the South formed militias. Most Southerners were convinced Brown had done what a lot of Northerners wanted to do, which threatened them (John Brown Farm, North Elba, New York New York History Netâ⬠). In other wards, Brownââ¬â¢s raid at Harpers Ferry 1859 fed fear of slave uprising. Southerners basically thought the Republican Party supported John Brownââ¬â¢s Raid and what he had done (Holland, ââ¬Å"Abolitionismâ⬠). This was a big issue for them, because the sixteenth president of the United States, Abraham Lincoln, was elected the next year and he was a member of the Republican Party. The South thought that being a member of the Republican Party meant being an abolitionist. This worried them, because abolitionists wanted to make slavery disappear, and they thought thatââ¬â¢s exactly what the new president of the whole country, Lincoln wanted to do. So, the South saw the election of Abraham Lincoln as a threat. On the other hand, Abraham Lincoln was not an abolitionist, and he didnââ¬â¢t think what John Brown did was good and ethical. He didnââ¬â¢t want to make the South be against him. He was just supporting the Free Soil Ideology. So Lincoln just didnââ¬â¢t want slavery to expand. However the South didnââ¬â¢t see this distinction. Even before Lincoln was inaugurated, Southern states began to secede from the Union (ââ¬Å"Abraham Lincolnâ⬠). So that was pretty much how the conflict first started, and caused the Civil War to begin. The Civil War ended in 1865 and slavery was finally abolished. Slavery had been the main reason for its start, because of the economic divisions it sparked along with abolitionism. The harvesting of cotton was a big source of money at that time, especially after the invention of the cotton gin and needed a great source of slaves as laborers. The abolitionist movement added more to this conflict with the misunderstandings about Lincolnââ¬â¢s political views in the South. At the end, the price for the war was pretty high. Lincoln, a visionary president, was assassinated, and it was the bloodiest and the saddest war in American history. It has a valuable part in American history and worth remembering a clear example of whatââ¬â¢s right and whatââ¬â¢s wrong.
Defence Logistics Organisation Analysis for War Suitability
Defence Logistics Organisation Analysis for War Suitability CHAPTER 1 INTRODUCTION Historically, nation states have used military power as an instruement of state to achieve their national aims objectives. Towards that end, logistics along with strategy and tactics constitute an important sub division of the practical art of war fighting [1]. It therefore evolves upon students of military history to grasp the nuances of logistics, the way it affects the very essence of modern, contemporary war fighting philosophy. To begin with, it is not incorrect to say that the military activity known as logistics is probably as old as war itself. The word logistics is derived from the Greek adjective, logistikus meaning skilled in calculating. Research indicates that the first use of the word with reference to an organised military administrative service was by the French writer Jomini who served as a staff officer in Napoleons army. In 1838, he set down logistics as one of the six branches of the military art, the other five being statesmanship in its relationship to war, strategy or art of properly directing masses upon the theatre of war, grand tactics, engineering and minor tactics. He included the phrase it is the execution of strategic and tactical enterprises in his definition of logistics. In short, he devised a theory of war upon the trinity of strategy, ground tactics and logistics. He defined it as practical art of moving armies [2]. Based on the experience gained over the years, the term was redefined in 1968 wherein Logistics was referred to as the art and science of creating and maintaining a military capability. It consists of the process of determining requirements, acquisitions, distributions and maintenance of materials. As regards, our Indian manuals, they define logistics as the science of planning and carrying out the movement and maintenance of forces[3]. In todays usage, logistics is the function of providing all the material and services that a military force needs in Peace or War. Logistics, therefore, covers a wide canvas broadly includes all military activities, other than strategy and tactics. It would therefore, be prudent to refer to logistics as the bridge between our combat troops and the industry natural resources of our country. Logistics perse is a key element of Doctrine, too, which describes it as a process that consists of planning and executing the movement and sustenance of operating forces in executing a military strategy and operations. It is essentially moving, supplying and maintaining military forces and is basic to the ability of armies, fleets and air forces to operate indeed to exist. It has a direct bearing on a countrys capability to support a national strategy [4]. As the rapidly evolving modern battlefield milieu transforms into short, intense and technologically intensive wars, the over bearing need for a fool proof and highly responsive logistic organizational structure for Indian Army to meet the logistic imperatives of a short war cannot be over emphasized. Our existing logistics system has been inherited from the British. Though the logistic system in general and the logistic organisation in particular have been subjected to numerous improvements and changes over the last six decades, the logistic system perse has failed to evolve with changing times and has more or less retained its archaic character. The major, Mathew[5] reason for the antiquated character of our logistic system is the flawed organisational structure which inhibits and precludes optimum utilisation of our well developed and vast national logistic capacities. Restructuring of our existing defence logistics organisation, therefore, is a pre-requisite to restructure our logistic system to meet the logistic imperatives of a short war. CHAPTER II METHODOLOGY Statement of the Problem To study and analyse the existing defence logistics organisation and to ascertain its suitability to meet the logistics imperatives of a short war. Hypothesis Our existing defence logistics organization is based on archaic concepts and will not be able to deliver adequately in a short war. Scope The scope of this study is restricted to analysis of the existing defence logistics organisation and to suggest a viable and responsive organisational structure that can meet the logistics imperatives of a short war. Methods of Data Collection. The data and information has been gathered from books, journals, periodicals, internet sites and also from own exposure and experience. The bibliography of sources is appended at the end of the text. CHAPTER III LIMITED / SHORT WAR IN THE INDIAN CONTEXT AND ITS IMPERATIVES War has been the single most important instruement by which most of the great facts of human history have been accomplished and maintained. It has been used as an instruement against aggression as also as an instruement of aggression itself. It has played the most dominant role in nearly all important crisis of humankind ; it has been used to achieve liberty, to ensure democracy as also in building great empires and in enforcing dictatorships. The term war today has come to include many more kinds of hostile activities ; limited war, short war, total war, cold war, hot war, propaganda war, psychological war, ground war, space war as also various other low -intensity conflicts such as guerilla war and fourth generation warfare. Thus war today is not only far more horrifying and a far more complex affair, it has also come to pervade all other aspects of mans social life [6]. Limited War The concept of limited war goes back to the 19th century when miitary theorists underscored the determinative relationship between political ends and military means. Both 19th century theorist Clausewitz and his 20th century successor Liddell Hart were committed advocates of the use of limited war or limited force as opposed to total war. In the 19th century, when concepts of blitzkrieg and wars of annihilation dominated military thoughts and policies, Clausewitz opposed such concepts. He stated, Political objectives, as the original motives of the war, should be the standard for determining both the aim of the military force and also the aim of effort to be made. With the advancement in automatic warfare in the middle of World War II, Liddell Hart realised that because of the destructive nature of the weapons, wars should be limited; however, he did not advocate limited war as a strategy. Later after the development of nuclear weapons, Liddell Hart came up with the concept of limite d war. He said, Where both sides possess atomic power, total war makes nonsense and any unlimited war waged with atomic power would make worse than nonsense; it would be mutually suicidal. He goes on to say any total war, or even the preparation for it, is likely to carry more evils in its train, without bearing any good promise in the event of victory [7]. Robert E Osgood defined limited war as A limited war is one in which the belligerents restrict the purpose for which they fight to concrete, well defined objectives that do not demand the utmost military effort of which the belligerents are capable and that can be accommodated in a negotiated settlement. The battle is confined to a local geographical area and directed against selected targets primarily those of direct military importance. It permits their economic, social and political patterns of existence to continue without serious disruption. In another study, Osgood defines limited war as a war that was to be fought for ends far short of the complete subordination of one states will to anothers using means that involve far less than the total military resources of the belligerents and leave the civilian life and the armed forces of the belligerents largely intact. Robert Osgood also admitted that limited war was not a uniform phenomena, it meant different things to different p eople. War could be limited in different ways and could be limited in some and not limited in others. For instance, a war limited in geographical terms may be unlimited in weapons employed or the targets involved. Similarly, a war may be limited for one of the adversaries yet unlimited in the eyes of the other [8]. Osgood while writing an epilogue on US experiences in Vietnam war, candidly confessed that even in nuclear age, a category of limited war exists which was still limited because of limitation of means. He examined limited war under three different categories of Central War, Local War and Unconventional war. While Central war involved use of nuclear weapons and was unacceptable, popularity of unconventional wars declined in US post Vietnam war. Hence, Osgood rated conventional local war as the most practical form of limited war though he did factor the contingencies which may arise and require other two categories to become operational [9]. Henry Kissinger, in Nuclear Weapons and Foreign Policy advocated that limited war might be a war confined to a defined geographical area, or war that does not utilize the entire available weapons system (such as refraining from the use of thermonuclear weapons). It may be a war which utilizes entire weapons system but it limits its employment to specific targets [10]. Kissinger, the man behind the Nixon Administrations adoption of the strategy of Limited Nuclear Options popularly known as Schlesinger Doctrine defined limited war as a war fought for specific political objectives which, by their very existence, led to establish a relationship between the force employed and the goal to be attained. It reflects an attempt to affect the opponents will, not to crush it, to make the conditions to be imposed seem more attractive than continued resistance to strive for specific goals and not for complete annihilation [11]. Kissinger , nevertheless, propogated a limited nuclear war strategy which came into conflict with the arguments of known proponets of limited war like Osgood and William Kaufmann, then the greatest critic of limited nuclear war. Kaufmann, a Yale University scholar and the brain behind the McMamara Strategy of flexible response, advocated keeping the war limited and its escalation under control. A more apt definition of limited war in line with contemporary thought process and environment is An armed conflict in which at least one protagonist intentionally restricts his objectives and/or means to accomplish those objectives. Intentional restriction can be self imposed or induced by an opponent or another nation or nations or organizations [12]. Limited war is also defined as a military encounter in which the two warring sides see each other on opposing sides and in which the effort of each falls short of the attempt to use all of its power to destroy the other [13]. Beyond doubt, limitation in warfare has always been impressed upon on the grounds of either morality or other limitations of resources and technology. However, with the advent of nuclear weapons on the one hand and of irreconciliable ideologies on the other, limitation in warfare had become a matter of necessity if the war was to sustain its traditional role of being an instruement of politics. And it is here that the strategy of limited war which seeks to preserve the eternal values of primacy of politics and economy of force even in the nuclear age has assumed supreme importance. Limited war framework does not include wars involving non-nuclear states. Instead, limited wars are conflicts in which vital interests of the nuclear powers are directly or indirectly involved and in which, therefore, the threat of their expansion into a Total War remains omnipresent imminent. Hence, it is this massive and deliberate hobbling of their infinite power by nuclear weapon powers that qualifies a conflict as limited war. Such wars have also been termed as Short Wars and , as seen in numerous conflicts since second World War II, have retained their pre-eminence as the most acceptable category of war in the contemporary nuclear age. The US and the Soviet Union, the two nuclear superpowers in cold war era, had the responsibility to not only ensure limitation of conflicts that involved dangers of exploding into a nuclear war but also to modify its war fighting doctrines to address the imperatives of intense short wars, which were likely to manifest in the nuclear enviornment. However, as the Soviet Union disintegrated, it enjoined on the US to effect a major shift in US war fighting doctrines, wherein it adopted a short war specific logistic structure to support the challenges to US strategic security calculus. The logistic structure catered for highly intense and violent battlefield which would have exacted heavy casualties of men, material and equipment [14]. Limited War In Indian Context The Indian Limited War doctrine had its roots in formulation of our response to the Pakistani aggression in Kargil in 1999. As the Dec 2001 terrorist strike led to mobilization and protracted deployment in Operation Parakram, the Indian strategists offered Limited War as Indias answer to what in security theory is termed as the stability-instability paradox. In the recent years, the limited war theory has acquired highly placed proponents and gained its own doctrinal respectability amidst intense public debates amongst Indian think tanks. Paradoxically, the Pakistani strategic experts community calls our new strategy as a doctrinal response based on regurgitation of American limited war concept of nineteen fifties to threaten and deter Pakistan [15]. Evidently, the Indian perspective on limited conventional war in a nuclear backdrop has witnessed intense and vigorous debate with proponents and opponents posing questions and counter questions on the probability of a limited conventional war escalating into a nuclear conflagaration. Historically, nuclear weapons have engendered caution between adversarial states, wherein the 1969 Soviet-Sino Ussuri River clashes and Indo-Pak Kargil war remains the only two cases where two declared nuclear weapon states have engaged in armed conflict [16]. Therefore, the options for India, to pursue its limited war doctrine against Pakistan, is to either apply military power spaced out in time and concentrated in space or stretched out in space and concentrated in time. In other words, Indian defense doctrine and strategy must seek to apply calibrated force for punitive effect, which does not have a destabilizing effect on the adversary [17]. The nuclear factor in South Asia has rendered total war u nthinkable and limited war has become a necessity and must be central to the military input provided to the political leadership as an option to secure conflict limitation [18]. From the Pak perspective, a limited conventional war in the Indo- Pak context, can be defined as a war designed to achieve specified political objectives by applying compatible resources in a critical area and by acting smartly in a manner so as to leave bare minimum incentive for the opponent to react with nuclear weapons without taking definite risk to suffer more gains [19] . India, of late, is also forced to contend with an increasingly assertive and belligerent China which sees India as the single biggest rival to Chinese pre- eminence in Asia. As numerous strategic and defence experts have began to increase the probability of a Sino-Indian military conflagration in the Himalayas, an objective look at the time frame duration of such a conflict is also mandated. A limited war in our context would envisage a likely time frame of 21- 28 days. This time frame is a logical one as geo-political realities of an armed conflict between two nuclear states along with inherent limitations of developing states in terms of economy, war waging capability etc will preclude continuation of viable operations beyond four weeks. Moreover, in a Sino-Indian conflict, the restrictive campaigning season of approximately two months will be a determinant of duration of hostilities as both sides would need time to build up their forces in the post monsoon phase. Otherwise, too, all our past wars have unambiguously been short wars, limited in duration and objectives and the future wars in a nuclear backdrop are going to be anything but different. Yet, the future wars will be short but highly intense, destructive wars, exacting heavy casualties of men, material and equipment in fast, fluid mobile battles across the entire spectrum of conflict in a technologically drive n war fighting environment with far reaching implications for the war fighting philosophies of the adversaries. Logistics Imperatives The future battlefield in an intense, short war would necessitate a major transformation in our logistic support system with likely changes as under [20] :- Limited preparatory period and highly intense short duration war, necessitating an efficient mobilization plan. Self contained theatre based logistic support structure. High attrition rate due to greater accuracy and lethality of long range weapon systems necessitating forward positioning of a greater quantum of reserves. Greater emphasis on intra theatre regeneration and re-supply of logistics resources. A sense and respond system working on the push model. Adoption of information technology and decision support systems for total asset visibility and improved inventory management [21]. Need to improve survivability of logistics echelons by dispersion and area air defence cover where possible. Maximum reliance on air maintenance for maintenance of momentum especially in mountainous and desert terrains. Need for greater degree of logistics flexibility and redundancy in all theatres. Increased strain on logistics support system due to greater density of high technological equipment in battlefield. The diversity of terrain and our varied operational roles, required to be performed in highly intense, short duration wars pose enormous logistic challenges and demand a dynamic, new approach to include simple, flexible and efficient logistic plans, based on a technology driven, seamless and fully networked logistic system. Such an approach is required to integrate the logistic resources of the three services and to utilize the existing national infrastructure more profitably to improve our logistic efficiency and enhance our operational readiness [22]. CHAPTER IV ANALYSIS TO INCLUDE SHORTCOMINGS OF EXISTING LOGISTIC ORGANISATION Existing Defence Logistic System National Level In India, the Cabinet Committee on Security (CCS) is the highest decision making body on national security and strategic issues and is mandated to formulate policies for the defence of the country through the National Security Council ( NSC ) established in 1998. The Defence Minister, who is a member of the Cabinet Committee on Security, heads the Ministry of Defence ( MOD )and is responsible for implementing the governments defence policies. The defence policies get implemented through various committees functioning under the MOD [23]. Details of such committees are as under :- Defence Ministers Committee. Defence Ministers Production and Supply Committee. Defence Research and Development Council. Chiefs of Staff Committee. The Defence Ministers committee is responsible for defence planning while the Production and Supply Committee is most important as it covers the entire gamut of planning force levels and equipment planning related to availabilty of resources. The Chiefs of Staff Committee advise the Defence Minister on all military matters including logistics matters. Another committee called the Joint Adminstration Planning Committee (JAPC) having representatives from the Services, is placed under the Chiefs of Staff Committee to coordinate the logistics effort of the three services and to prepare a joint adminstration plan to supplement and support the overall mobilisation and operational plan evolved by the Joint Planning Committee ( JPC ) [24]. Army Logistics At Army Headquarters level, the agencies responsibile for providing logistics are the Adjutant General (AG), Quartermaster general (QMG), Master General of Ordnance (MGO) and Engineering-in-Chief (E-in-C). Basically the existing system is influenced by what was primarily inherited from the British Army. In the present organization, the supply and transport are under the QMG while Ordnance and EME are with the MGO and the Medical services have been placed under the AG. Moreover, selection and introduction of any new equipment though a joint responsibility, is with the Weapons and Equipment (WE) Directorate while maintenance of such equipment is a logistic function. In order to coordinate various branches and to ensure smooth flow, Directorate General Operational Logistics (DGOL) has been created. However, the management and control of the logistic services has not been brought under a unified single management or control, which gives rise to a number of intra-service logistical proble ms , thereby making the task of DGOL difficult [25]. Utilisation of army budget also is a problem area as the QMG Branch, which is responsible for large portion of Armys logistic planning, spends almost two-fifths of the army budget [26]. Thus the staff support is highly fragmented and does not approximate to the concept of integrated logistic support. IAF Logistics In IAF, the Logistics Branch handles all the equipment, materials management and distribution functions [27]. At the Air Headquarters, Air Officer-in-charge Maintenance ( AOM ) and Air Officer-in-charge administration ( AOA ) perform functions similar to those of the AG and the QMG in the army and partly similar to those of MGO. The AOM is assisted by four Additional Chiefs of Air Staff ( ACAS ) and Air Officer Logistics ( AOL ). The AOM to a large extent, provides single point management and control, wherein all specialist aspects of aircraft and equipment maintenance, overhaul and provisioning of stores in respect of each weapon system is looked after. In addition, the Initial Provisioning Committee and Maintenance Planning Teams provide logistic support for the newly introduced aircraft and weapon systems [28]. As regards, functions of AOA, he is assisted by two ACsAS and controls administrative aspects such as organization, works, accounts, legal ,medical, pay and provost. Navy Logistics In Navy, the Chief of Materials (COM ), a Principle Staff Officer to the Naval Chief at Naval Headquarters is responsible for entire Logistics management function in the Navy. He is assisted by the Controller of Logistics Support, who functions directly under the Chief of Material and deals with logistics support, clothing and victualling, armament supply and transport. In addition, there are two Assistant Chiefs of Materials aiding the Chief of Material to deal with Systems and DR. The Chief of Personnel (COP) heads the personnel branch and handles the medical services, recruitment, welfare and service conditions [29]. Analysis of the Existing System An analysis of the existing logistics system reveals some glaring and profound weaknesses which need to be redressed forthwith, in order to obviate potential adverse effects on our national security. The systemic weaknesses are pronounced in the fields of our logistic organization, both at national and services level and also in our failure to integrate our logistics system. The later, in fact, is a manifestation of a flawed organizational set up, being carried forward as a legacy of the colonial times. That so many past studies and writings by experts on the subject have failed to elicit the attention of the decision makers concerned is a sad reflection on our system and underlines a lack of overall national perspective for logistics. Further, it is apparent that the decision making structures at the national and services level are either inappropriate or simply unresponsive. Our logistic system, though has taken the obvious weaknesses and the shortcomings in its stride and has deli vered the goods in all wars fought by us in the post independence period. As such, it is of utmost importance that the obvious shortcomings are identified and addressed in order to integrate and optimize our logistics system as a true component of the National Effort, needed to respond to growing threats to our national security. Shortcomings of our Logistic System Organisational Weakness. At the top echelons of the MOD and Chiefs of Staff Committee ( COSC ), Defence by Committees is the accepted style of functioning, which is hardly conducive to efficient functioning. The Service chiefs are responsible for operational and logistic preparedness, but exercise little or no control over budget and provisioning of war like material, which remains the direct prerogative of the MOD. No National Level Organisation. Neither any national level organisation exists to oversee, coordinate and integrate our defence needs with national development nor any visible efforts are seen towards orienting national level logistical planning to our defence requirements. Lack of Common Logistic Doctrine. Despite jointness and integration being the buzzwords, the three services have failed to evolve a common logistics doctrine and philosophy of logistic support. Multiplicity of Logistic Agencies. There is a multiplicity in logistic agencies with no single authority responsible to the Chief of Army Staff ( COAS ) for logistics preparedness. Lack of centralized logistic support encourages duplication and wasteful expenditure. Multiple Procurement Agencies. Multiple procurement agencies in the services with lack of interaction, work against the principle of economy and lead to increased costs. Lack of Standardisation and Codification . It leads to duplication and high inventories. Multiple stocking echelons ,too, lead to a high level of stocking and is compounded due to lack of an integrated systems approach to determine stock levels. A vast range of assorted equipment, both imported and indigenous, has only exacerbated the problems of providing effective logistics backup [30]. Inventory Automation. Despite commonality of procedures, separate inventory automation has been undertaken by all three services, thus violating the administration principal of economy. Private Sector Involvement in Defence Research and Development. Despite the dynamic changes ushered by Defence Procurement Procedure 2005 2009, the private sector involvement in defence research development and defence production has not reached the desired levels. Attitudinal Change towards logistics, In Indian Army, an attitude has been prevalent for long, wherein logistics consideration in an operational plan are invariably given short shrift under the mistaken belief that a commanders tactical brilliance will some how compensate for inadequate consideration of logistics. The practice of not involving the logistics functionary in formulation of operational plans and then leaving the logistics planning entirely to logisticians is an inevitable recipe for disaster. Mobilisation. Mobilisation involves movement of men and material, wherein move by rail is carried out under the aegis of the Operational Rail Movement Plan (ORMP). Though the plan has been validated during OP VIJAY and OP PARAKRAM , concerns remain as regards the move and dispersion of strike and dual task formations as also the creation of requisite infrastructure for unloading / loading at railway stations concerned. Besides this, shortage of defence rolling stocks exist which will inhibit speedy mobilisation. Functioning of Ordnance Factories and the PSUs. Director General of Ordnance Factories and the Defence Public Sector Undertakings are major defence manufacturers. However, the present organisational structure precludes the optimum functioning of these organisations. Despite being an intrinsic part of Defence Ministers Production and Supply Committee ( DPSC ) , the Ordnance Factory Board ( OFB ) usually functions independently and in any case is not accountable to the Army or the defence, though the funding for the OFB is made from the Army Budget. As such, the Chief of Army Staff has very little say with respect to production and priority in delivery of items. The OFB items also have quality concerns especially in general stores and clothing items. Multiple Echelon System. The multiple echelon system which is existing as the chain of supply to the field formations need critical examination and reduction of echelons where feasible. Logistics support need not be the same across the board for all formations in the country, it can be tailor-made to meet the requirement of a particular sector, the terrain, the type of operations and equipment likely to operate in the area. This will cut down the time factor for move from source to the field formation. Push Model. The push model of pumping the logistics requirement of troops forward has been partially implemented in certain areas. It needs to be implemented across the board to ensure that the troops do not have to look over their shoulders for logistics support. CHAPTER V ANALYSIS OF CONTEMPORARY LOGISTICS ORGANISATION OF MAJOR MILITARY POWERS US System The US Armed Forces have a highly efficient and responsive logistic system, based on a dynamic organizational structure which has evolved to meet the ever changing operational requirements. The Defence Logistic Agency ( DLA ), a US Department of Defence ( DOD ) agency supplies the nations military services and several civilian agencies with the wide ranging logistical support for peacetime and wartime operations as well as emergency preparedness and humanitarian missions [31]. The DLA Director reports to the Under Secretary of Defence for Acquisition, Technology and Logistics through the Deputy Under Secretary of Defence ( Logistics and Material Readiness ).The DLA has evolved from Defence Supply Agency ( DSA ), which worked on the Single Manager Concept, wherein eight service agencies viz army, navy, air force etc handled one commodity each and became DSA supply centers. In 1977, DLA was established with the aim of centralizing the management of common military logistics support and to introduce uniform financial management practices. Later, the Goldwater-Nichols Act of 1986, for integration of US Armed Forces, identified DLA as a combat support agency. In Feb 2000, a new DLA organization structure part of an integrated plan called DLA 21 integrated all distribution depots of the military services into a single, unified material distribution system to reduce overhead costs and place them under DLA for management. It also created four major sub agencies under the DLA as under :- Def Logistics Support Command ( DLSC). Responsible for integration of logistics operations, supply chain management, readiness and contigency operations support. It is also responsible for procurement, storage and distribution of consumable parts, fuel, medical, subsistence and clothing and textile support. It has subsequently been reorganised as DLA Logistics Operations Directorate ( DLALO J-3 ). Def Contract Management Command. Responsible for DODs primary contract administration activity. Information Operations. Responsible for DLAs information technology activities to enhance e-commerce, logistics support system and document automation in support of military logistics. Financial Operations. Responsible for streamlining DLAs financial system for agencys future initiatives. UK System UK, too, has been a fore runner in initiation of defence reforms, which began with th Defence Logistics Organisation Analysis for War Suitability Defence Logistics Organisation Analysis for War Suitability CHAPTER 1 INTRODUCTION Historically, nation states have used military power as an instruement of state to achieve their national aims objectives. Towards that end, logistics along with strategy and tactics constitute an important sub division of the practical art of war fighting [1]. It therefore evolves upon students of military history to grasp the nuances of logistics, the way it affects the very essence of modern, contemporary war fighting philosophy. To begin with, it is not incorrect to say that the military activity known as logistics is probably as old as war itself. The word logistics is derived from the Greek adjective, logistikus meaning skilled in calculating. Research indicates that the first use of the word with reference to an organised military administrative service was by the French writer Jomini who served as a staff officer in Napoleons army. In 1838, he set down logistics as one of the six branches of the military art, the other five being statesmanship in its relationship to war, strategy or art of properly directing masses upon the theatre of war, grand tactics, engineering and minor tactics. He included the phrase it is the execution of strategic and tactical enterprises in his definition of logistics. In short, he devised a theory of war upon the trinity of strategy, ground tactics and logistics. He defined it as practical art of moving armies [2]. Based on the experience gained over the years, the term was redefined in 1968 wherein Logistics was referred to as the art and science of creating and maintaining a military capability. It consists of the process of determining requirements, acquisitions, distributions and maintenance of materials. As regards, our Indian manuals, they define logistics as the science of planning and carrying out the movement and maintenance of forces[3]. In todays usage, logistics is the function of providing all the material and services that a military force needs in Peace or War. Logistics, therefore, covers a wide canvas broadly includes all military activities, other than strategy and tactics. It would therefore, be prudent to refer to logistics as the bridge between our combat troops and the industry natural resources of our country. Logistics perse is a key element of Doctrine, too, which describes it as a process that consists of planning and executing the movement and sustenance of operating forces in executing a military strategy and operations. It is essentially moving, supplying and maintaining military forces and is basic to the ability of armies, fleets and air forces to operate indeed to exist. It has a direct bearing on a countrys capability to support a national strategy [4]. As the rapidly evolving modern battlefield milieu transforms into short, intense and technologically intensive wars, the over bearing need for a fool proof and highly responsive logistic organizational structure for Indian Army to meet the logistic imperatives of a short war cannot be over emphasized. Our existing logistics system has been inherited from the British. Though the logistic system in general and the logistic organisation in particular have been subjected to numerous improvements and changes over the last six decades, the logistic system perse has failed to evolve with changing times and has more or less retained its archaic character. The major, Mathew[5] reason for the antiquated character of our logistic system is the flawed organisational structure which inhibits and precludes optimum utilisation of our well developed and vast national logistic capacities. Restructuring of our existing defence logistics organisation, therefore, is a pre-requisite to restructure our logistic system to meet the logistic imperatives of a short war. CHAPTER II METHODOLOGY Statement of the Problem To study and analyse the existing defence logistics organisation and to ascertain its suitability to meet the logistics imperatives of a short war. Hypothesis Our existing defence logistics organization is based on archaic concepts and will not be able to deliver adequately in a short war. Scope The scope of this study is restricted to analysis of the existing defence logistics organisation and to suggest a viable and responsive organisational structure that can meet the logistics imperatives of a short war. Methods of Data Collection. The data and information has been gathered from books, journals, periodicals, internet sites and also from own exposure and experience. The bibliography of sources is appended at the end of the text. CHAPTER III LIMITED / SHORT WAR IN THE INDIAN CONTEXT AND ITS IMPERATIVES War has been the single most important instruement by which most of the great facts of human history have been accomplished and maintained. It has been used as an instruement against aggression as also as an instruement of aggression itself. It has played the most dominant role in nearly all important crisis of humankind ; it has been used to achieve liberty, to ensure democracy as also in building great empires and in enforcing dictatorships. The term war today has come to include many more kinds of hostile activities ; limited war, short war, total war, cold war, hot war, propaganda war, psychological war, ground war, space war as also various other low -intensity conflicts such as guerilla war and fourth generation warfare. Thus war today is not only far more horrifying and a far more complex affair, it has also come to pervade all other aspects of mans social life [6]. Limited War The concept of limited war goes back to the 19th century when miitary theorists underscored the determinative relationship between political ends and military means. Both 19th century theorist Clausewitz and his 20th century successor Liddell Hart were committed advocates of the use of limited war or limited force as opposed to total war. In the 19th century, when concepts of blitzkrieg and wars of annihilation dominated military thoughts and policies, Clausewitz opposed such concepts. He stated, Political objectives, as the original motives of the war, should be the standard for determining both the aim of the military force and also the aim of effort to be made. With the advancement in automatic warfare in the middle of World War II, Liddell Hart realised that because of the destructive nature of the weapons, wars should be limited; however, he did not advocate limited war as a strategy. Later after the development of nuclear weapons, Liddell Hart came up with the concept of limite d war. He said, Where both sides possess atomic power, total war makes nonsense and any unlimited war waged with atomic power would make worse than nonsense; it would be mutually suicidal. He goes on to say any total war, or even the preparation for it, is likely to carry more evils in its train, without bearing any good promise in the event of victory [7]. Robert E Osgood defined limited war as A limited war is one in which the belligerents restrict the purpose for which they fight to concrete, well defined objectives that do not demand the utmost military effort of which the belligerents are capable and that can be accommodated in a negotiated settlement. The battle is confined to a local geographical area and directed against selected targets primarily those of direct military importance. It permits their economic, social and political patterns of existence to continue without serious disruption. In another study, Osgood defines limited war as a war that was to be fought for ends far short of the complete subordination of one states will to anothers using means that involve far less than the total military resources of the belligerents and leave the civilian life and the armed forces of the belligerents largely intact. Robert Osgood also admitted that limited war was not a uniform phenomena, it meant different things to different p eople. War could be limited in different ways and could be limited in some and not limited in others. For instance, a war limited in geographical terms may be unlimited in weapons employed or the targets involved. Similarly, a war may be limited for one of the adversaries yet unlimited in the eyes of the other [8]. Osgood while writing an epilogue on US experiences in Vietnam war, candidly confessed that even in nuclear age, a category of limited war exists which was still limited because of limitation of means. He examined limited war under three different categories of Central War, Local War and Unconventional war. While Central war involved use of nuclear weapons and was unacceptable, popularity of unconventional wars declined in US post Vietnam war. Hence, Osgood rated conventional local war as the most practical form of limited war though he did factor the contingencies which may arise and require other two categories to become operational [9]. Henry Kissinger, in Nuclear Weapons and Foreign Policy advocated that limited war might be a war confined to a defined geographical area, or war that does not utilize the entire available weapons system (such as refraining from the use of thermonuclear weapons). It may be a war which utilizes entire weapons system but it limits its employment to specific targets [10]. Kissinger, the man behind the Nixon Administrations adoption of the strategy of Limited Nuclear Options popularly known as Schlesinger Doctrine defined limited war as a war fought for specific political objectives which, by their very existence, led to establish a relationship between the force employed and the goal to be attained. It reflects an attempt to affect the opponents will, not to crush it, to make the conditions to be imposed seem more attractive than continued resistance to strive for specific goals and not for complete annihilation [11]. Kissinger , nevertheless, propogated a limited nuclear war strategy which came into conflict with the arguments of known proponets of limited war like Osgood and William Kaufmann, then the greatest critic of limited nuclear war. Kaufmann, a Yale University scholar and the brain behind the McMamara Strategy of flexible response, advocated keeping the war limited and its escalation under control. A more apt definition of limited war in line with contemporary thought process and environment is An armed conflict in which at least one protagonist intentionally restricts his objectives and/or means to accomplish those objectives. Intentional restriction can be self imposed or induced by an opponent or another nation or nations or organizations [12]. Limited war is also defined as a military encounter in which the two warring sides see each other on opposing sides and in which the effort of each falls short of the attempt to use all of its power to destroy the other [13]. Beyond doubt, limitation in warfare has always been impressed upon on the grounds of either morality or other limitations of resources and technology. However, with the advent of nuclear weapons on the one hand and of irreconciliable ideologies on the other, limitation in warfare had become a matter of necessity if the war was to sustain its traditional role of being an instruement of politics. And it is here that the strategy of limited war which seeks to preserve the eternal values of primacy of politics and economy of force even in the nuclear age has assumed supreme importance. Limited war framework does not include wars involving non-nuclear states. Instead, limited wars are conflicts in which vital interests of the nuclear powers are directly or indirectly involved and in which, therefore, the threat of their expansion into a Total War remains omnipresent imminent. Hence, it is this massive and deliberate hobbling of their infinite power by nuclear weapon powers that qualifies a conflict as limited war. Such wars have also been termed as Short Wars and , as seen in numerous conflicts since second World War II, have retained their pre-eminence as the most acceptable category of war in the contemporary nuclear age. The US and the Soviet Union, the two nuclear superpowers in cold war era, had the responsibility to not only ensure limitation of conflicts that involved dangers of exploding into a nuclear war but also to modify its war fighting doctrines to address the imperatives of intense short wars, which were likely to manifest in the nuclear enviornment. However, as the Soviet Union disintegrated, it enjoined on the US to effect a major shift in US war fighting doctrines, wherein it adopted a short war specific logistic structure to support the challenges to US strategic security calculus. The logistic structure catered for highly intense and violent battlefield which would have exacted heavy casualties of men, material and equipment [14]. Limited War In Indian Context The Indian Limited War doctrine had its roots in formulation of our response to the Pakistani aggression in Kargil in 1999. As the Dec 2001 terrorist strike led to mobilization and protracted deployment in Operation Parakram, the Indian strategists offered Limited War as Indias answer to what in security theory is termed as the stability-instability paradox. In the recent years, the limited war theory has acquired highly placed proponents and gained its own doctrinal respectability amidst intense public debates amongst Indian think tanks. Paradoxically, the Pakistani strategic experts community calls our new strategy as a doctrinal response based on regurgitation of American limited war concept of nineteen fifties to threaten and deter Pakistan [15]. Evidently, the Indian perspective on limited conventional war in a nuclear backdrop has witnessed intense and vigorous debate with proponents and opponents posing questions and counter questions on the probability of a limited conventional war escalating into a nuclear conflagaration. Historically, nuclear weapons have engendered caution between adversarial states, wherein the 1969 Soviet-Sino Ussuri River clashes and Indo-Pak Kargil war remains the only two cases where two declared nuclear weapon states have engaged in armed conflict [16]. Therefore, the options for India, to pursue its limited war doctrine against Pakistan, is to either apply military power spaced out in time and concentrated in space or stretched out in space and concentrated in time. In other words, Indian defense doctrine and strategy must seek to apply calibrated force for punitive effect, which does not have a destabilizing effect on the adversary [17]. The nuclear factor in South Asia has rendered total war u nthinkable and limited war has become a necessity and must be central to the military input provided to the political leadership as an option to secure conflict limitation [18]. From the Pak perspective, a limited conventional war in the Indo- Pak context, can be defined as a war designed to achieve specified political objectives by applying compatible resources in a critical area and by acting smartly in a manner so as to leave bare minimum incentive for the opponent to react with nuclear weapons without taking definite risk to suffer more gains [19] . India, of late, is also forced to contend with an increasingly assertive and belligerent China which sees India as the single biggest rival to Chinese pre- eminence in Asia. As numerous strategic and defence experts have began to increase the probability of a Sino-Indian military conflagration in the Himalayas, an objective look at the time frame duration of such a conflict is also mandated. A limited war in our context would envisage a likely time frame of 21- 28 days. This time frame is a logical one as geo-political realities of an armed conflict between two nuclear states along with inherent limitations of developing states in terms of economy, war waging capability etc will preclude continuation of viable operations beyond four weeks. Moreover, in a Sino-Indian conflict, the restrictive campaigning season of approximately two months will be a determinant of duration of hostilities as both sides would need time to build up their forces in the post monsoon phase. Otherwise, too, all our past wars have unambiguously been short wars, limited in duration and objectives and the future wars in a nuclear backdrop are going to be anything but different. Yet, the future wars will be short but highly intense, destructive wars, exacting heavy casualties of men, material and equipment in fast, fluid mobile battles across the entire spectrum of conflict in a technologically drive n war fighting environment with far reaching implications for the war fighting philosophies of the adversaries. Logistics Imperatives The future battlefield in an intense, short war would necessitate a major transformation in our logistic support system with likely changes as under [20] :- Limited preparatory period and highly intense short duration war, necessitating an efficient mobilization plan. Self contained theatre based logistic support structure. High attrition rate due to greater accuracy and lethality of long range weapon systems necessitating forward positioning of a greater quantum of reserves. Greater emphasis on intra theatre regeneration and re-supply of logistics resources. A sense and respond system working on the push model. Adoption of information technology and decision support systems for total asset visibility and improved inventory management [21]. Need to improve survivability of logistics echelons by dispersion and area air defence cover where possible. Maximum reliance on air maintenance for maintenance of momentum especially in mountainous and desert terrains. Need for greater degree of logistics flexibility and redundancy in all theatres. Increased strain on logistics support system due to greater density of high technological equipment in battlefield. The diversity of terrain and our varied operational roles, required to be performed in highly intense, short duration wars pose enormous logistic challenges and demand a dynamic, new approach to include simple, flexible and efficient logistic plans, based on a technology driven, seamless and fully networked logistic system. Such an approach is required to integrate the logistic resources of the three services and to utilize the existing national infrastructure more profitably to improve our logistic efficiency and enhance our operational readiness [22]. CHAPTER IV ANALYSIS TO INCLUDE SHORTCOMINGS OF EXISTING LOGISTIC ORGANISATION Existing Defence Logistic System National Level In India, the Cabinet Committee on Security (CCS) is the highest decision making body on national security and strategic issues and is mandated to formulate policies for the defence of the country through the National Security Council ( NSC ) established in 1998. The Defence Minister, who is a member of the Cabinet Committee on Security, heads the Ministry of Defence ( MOD )and is responsible for implementing the governments defence policies. The defence policies get implemented through various committees functioning under the MOD [23]. Details of such committees are as under :- Defence Ministers Committee. Defence Ministers Production and Supply Committee. Defence Research and Development Council. Chiefs of Staff Committee. The Defence Ministers committee is responsible for defence planning while the Production and Supply Committee is most important as it covers the entire gamut of planning force levels and equipment planning related to availabilty of resources. The Chiefs of Staff Committee advise the Defence Minister on all military matters including logistics matters. Another committee called the Joint Adminstration Planning Committee (JAPC) having representatives from the Services, is placed under the Chiefs of Staff Committee to coordinate the logistics effort of the three services and to prepare a joint adminstration plan to supplement and support the overall mobilisation and operational plan evolved by the Joint Planning Committee ( JPC ) [24]. Army Logistics At Army Headquarters level, the agencies responsibile for providing logistics are the Adjutant General (AG), Quartermaster general (QMG), Master General of Ordnance (MGO) and Engineering-in-Chief (E-in-C). Basically the existing system is influenced by what was primarily inherited from the British Army. In the present organization, the supply and transport are under the QMG while Ordnance and EME are with the MGO and the Medical services have been placed under the AG. Moreover, selection and introduction of any new equipment though a joint responsibility, is with the Weapons and Equipment (WE) Directorate while maintenance of such equipment is a logistic function. In order to coordinate various branches and to ensure smooth flow, Directorate General Operational Logistics (DGOL) has been created. However, the management and control of the logistic services has not been brought under a unified single management or control, which gives rise to a number of intra-service logistical proble ms , thereby making the task of DGOL difficult [25]. Utilisation of army budget also is a problem area as the QMG Branch, which is responsible for large portion of Armys logistic planning, spends almost two-fifths of the army budget [26]. Thus the staff support is highly fragmented and does not approximate to the concept of integrated logistic support. IAF Logistics In IAF, the Logistics Branch handles all the equipment, materials management and distribution functions [27]. At the Air Headquarters, Air Officer-in-charge Maintenance ( AOM ) and Air Officer-in-charge administration ( AOA ) perform functions similar to those of the AG and the QMG in the army and partly similar to those of MGO. The AOM is assisted by four Additional Chiefs of Air Staff ( ACAS ) and Air Officer Logistics ( AOL ). The AOM to a large extent, provides single point management and control, wherein all specialist aspects of aircraft and equipment maintenance, overhaul and provisioning of stores in respect of each weapon system is looked after. In addition, the Initial Provisioning Committee and Maintenance Planning Teams provide logistic support for the newly introduced aircraft and weapon systems [28]. As regards, functions of AOA, he is assisted by two ACsAS and controls administrative aspects such as organization, works, accounts, legal ,medical, pay and provost. Navy Logistics In Navy, the Chief of Materials (COM ), a Principle Staff Officer to the Naval Chief at Naval Headquarters is responsible for entire Logistics management function in the Navy. He is assisted by the Controller of Logistics Support, who functions directly under the Chief of Material and deals with logistics support, clothing and victualling, armament supply and transport. In addition, there are two Assistant Chiefs of Materials aiding the Chief of Material to deal with Systems and DR. The Chief of Personnel (COP) heads the personnel branch and handles the medical services, recruitment, welfare and service conditions [29]. Analysis of the Existing System An analysis of the existing logistics system reveals some glaring and profound weaknesses which need to be redressed forthwith, in order to obviate potential adverse effects on our national security. The systemic weaknesses are pronounced in the fields of our logistic organization, both at national and services level and also in our failure to integrate our logistics system. The later, in fact, is a manifestation of a flawed organizational set up, being carried forward as a legacy of the colonial times. That so many past studies and writings by experts on the subject have failed to elicit the attention of the decision makers concerned is a sad reflection on our system and underlines a lack of overall national perspective for logistics. Further, it is apparent that the decision making structures at the national and services level are either inappropriate or simply unresponsive. Our logistic system, though has taken the obvious weaknesses and the shortcomings in its stride and has deli vered the goods in all wars fought by us in the post independence period. As such, it is of utmost importance that the obvious shortcomings are identified and addressed in order to integrate and optimize our logistics system as a true component of the National Effort, needed to respond to growing threats to our national security. Shortcomings of our Logistic System Organisational Weakness. At the top echelons of the MOD and Chiefs of Staff Committee ( COSC ), Defence by Committees is the accepted style of functioning, which is hardly conducive to efficient functioning. The Service chiefs are responsible for operational and logistic preparedness, but exercise little or no control over budget and provisioning of war like material, which remains the direct prerogative of the MOD. No National Level Organisation. Neither any national level organisation exists to oversee, coordinate and integrate our defence needs with national development nor any visible efforts are seen towards orienting national level logistical planning to our defence requirements. Lack of Common Logistic Doctrine. Despite jointness and integration being the buzzwords, the three services have failed to evolve a common logistics doctrine and philosophy of logistic support. Multiplicity of Logistic Agencies. There is a multiplicity in logistic agencies with no single authority responsible to the Chief of Army Staff ( COAS ) for logistics preparedness. Lack of centralized logistic support encourages duplication and wasteful expenditure. Multiple Procurement Agencies. Multiple procurement agencies in the services with lack of interaction, work against the principle of economy and lead to increased costs. Lack of Standardisation and Codification . It leads to duplication and high inventories. Multiple stocking echelons ,too, lead to a high level of stocking and is compounded due to lack of an integrated systems approach to determine stock levels. A vast range of assorted equipment, both imported and indigenous, has only exacerbated the problems of providing effective logistics backup [30]. Inventory Automation. Despite commonality of procedures, separate inventory automation has been undertaken by all three services, thus violating the administration principal of economy. Private Sector Involvement in Defence Research and Development. Despite the dynamic changes ushered by Defence Procurement Procedure 2005 2009, the private sector involvement in defence research development and defence production has not reached the desired levels. Attitudinal Change towards logistics, In Indian Army, an attitude has been prevalent for long, wherein logistics consideration in an operational plan are invariably given short shrift under the mistaken belief that a commanders tactical brilliance will some how compensate for inadequate consideration of logistics. The practice of not involving the logistics functionary in formulation of operational plans and then leaving the logistics planning entirely to logisticians is an inevitable recipe for disaster. Mobilisation. Mobilisation involves movement of men and material, wherein move by rail is carried out under the aegis of the Operational Rail Movement Plan (ORMP). Though the plan has been validated during OP VIJAY and OP PARAKRAM , concerns remain as regards the move and dispersion of strike and dual task formations as also the creation of requisite infrastructure for unloading / loading at railway stations concerned. Besides this, shortage of defence rolling stocks exist which will inhibit speedy mobilisation. Functioning of Ordnance Factories and the PSUs. Director General of Ordnance Factories and the Defence Public Sector Undertakings are major defence manufacturers. However, the present organisational structure precludes the optimum functioning of these organisations. Despite being an intrinsic part of Defence Ministers Production and Supply Committee ( DPSC ) , the Ordnance Factory Board ( OFB ) usually functions independently and in any case is not accountable to the Army or the defence, though the funding for the OFB is made from the Army Budget. As such, the Chief of Army Staff has very little say with respect to production and priority in delivery of items. The OFB items also have quality concerns especially in general stores and clothing items. Multiple Echelon System. The multiple echelon system which is existing as the chain of supply to the field formations need critical examination and reduction of echelons where feasible. Logistics support need not be the same across the board for all formations in the country, it can be tailor-made to meet the requirement of a particular sector, the terrain, the type of operations and equipment likely to operate in the area. This will cut down the time factor for move from source to the field formation. Push Model. The push model of pumping the logistics requirement of troops forward has been partially implemented in certain areas. It needs to be implemented across the board to ensure that the troops do not have to look over their shoulders for logistics support. CHAPTER V ANALYSIS OF CONTEMPORARY LOGISTICS ORGANISATION OF MAJOR MILITARY POWERS US System The US Armed Forces have a highly efficient and responsive logistic system, based on a dynamic organizational structure which has evolved to meet the ever changing operational requirements. The Defence Logistic Agency ( DLA ), a US Department of Defence ( DOD ) agency supplies the nations military services and several civilian agencies with the wide ranging logistical support for peacetime and wartime operations as well as emergency preparedness and humanitarian missions [31]. The DLA Director reports to the Under Secretary of Defence for Acquisition, Technology and Logistics through the Deputy Under Secretary of Defence ( Logistics and Material Readiness ).The DLA has evolved from Defence Supply Agency ( DSA ), which worked on the Single Manager Concept, wherein eight service agencies viz army, navy, air force etc handled one commodity each and became DSA supply centers. In 1977, DLA was established with the aim of centralizing the management of common military logistics support and to introduce uniform financial management practices. Later, the Goldwater-Nichols Act of 1986, for integration of US Armed Forces, identified DLA as a combat support agency. In Feb 2000, a new DLA organization structure part of an integrated plan called DLA 21 integrated all distribution depots of the military services into a single, unified material distribution system to reduce overhead costs and place them under DLA for management. It also created four major sub agencies under the DLA as under :- Def Logistics Support Command ( DLSC). Responsible for integration of logistics operations, supply chain management, readiness and contigency operations support. It is also responsible for procurement, storage and distribution of consumable parts, fuel, medical, subsistence and clothing and textile support. It has subsequently been reorganised as DLA Logistics Operations Directorate ( DLALO J-3 ). Def Contract Management Command. Responsible for DODs primary contract administration activity. Information Operations. Responsible for DLAs information technology activities to enhance e-commerce, logistics support system and document automation in support of military logistics. Financial Operations. Responsible for streamlining DLAs financial system for agencys future initiatives. UK System UK, too, has been a fore runner in initiation of defence reforms, which began with th
Sunday, July 21, 2019
Hydrostatic Pressure Vessel
Hydrostatic Pressure Vessel Nomenclature = radial stress = Hoop stress = axial stress Pi = internal pressure Po = external pressure ri = internal radius ro = external radius r = radius at point of interest (usually ri or ro) Delta L = Elongation = Deformation ID = inner dimeter of o-ring Gd = groove diameter Srec = stretch recommended Bd = Bore diameter GW = Groove width CS = cross section diameter C = recommended maximum compression (static)à Summary à A design of a thick vessel is created to measure the effects of hydrostatic pressure when operated in them. The methodology of calculating the stresses on thick walled cylinders is illustrated. A study of the radial and hoop stresses is progressed to find the required sizes of the vessel to operate without a failure under 30 MPa pressure. The bolts are designed to handle the load on the vessel to keep the vessel in one place without moving. The force in the vessel is measured to find the correct bolts that will keep the vessel fixed and safe. A sealing technology study is described to understand how to measure the correct dimension of the o-ring to process the test without air leakage from the entry of vessel. The groove in the vessel was measured to stretch the o-ring designed in a correct manner so the pressure hand move in and out sealed. The calculations in this report are tested mathematically in an academic manner for the design to be brought to life with high efficiency. Introduction In the field of science experimenting, it is necessary to test the efficiency of a specific design, because all products of same function have different specifications and differ in quality. At the same time the true specification of a design can alter its efficiency. Therefore, the best product must be created with real specific measurements that lead to its perfection. It is found that there are three important features of the pressure vessel. Firstly, the shape of the vessel which presents the equations used to study the impact of pressure in them. Secondly, the material used must be chosen correctly to prevent any danger if vessel fails. Finally, the safety is the most important feature in a pressure vessel hence it is important to choose the correct bolts that will keep the vessel fixed at a point. In addition to designing the desired sealing technology of the vessel to keep the air pressure tight in the vessel without any leakage. Companies, industries and labs usually use hydrostatic pressure on a specimen to figure out it properties which allow us to understand the standards of the material. Using hydrostatic pressure is a safe and effective process which helps us to understand more about failure of objects under pressure and the effect of hydrostatic pressure. There are a few different techniques used to measure the failure of a test, for ex ample, when a hydrostatic test is proceeding it is known that if air starts leaking from the vessel, this would be considered as a failed test. Thick walled cylinders nature is that they handle more pressure. Under high pressure, the wall might explode and cause failure thus is it important to dimension right size for the thickness of the cylinder before manufacturing the cylinder for hydrostatic testing. Measuring variables such as, hoop, radial, and axial stresses will be discussed and progressed for the vessel designed in this report. The bolts used are entitled to a high load of pressure which is possible to cause a failure if there was no study taken before using these specific bolts that have this mechanical specification. A study on the strength of the bolt is being used and will be illustrated later in the report. Basically, this report will show a study on how to design the required cylinder and bolts to process a safe hydrostatic test. As the design of the vessel will be illustrated to understand the image of the design and its dimensions. Which will lead to an understanding on how to design a specified thick cylin der to process an internal pressure and a hydraulic press to test a specimen hydrostatically. Aim of the Project The project aim to design a device to measure the effects of hydrostatic pressure on the fracture toughness of the device. It is found that the device required must handle conditions of 30 MPa pressure thus thick walled cylinder is needed. The importunacy of this project is to create a design that meets the required conditions for it to function plus applying correct methods and calculations for it to function. Hydrostatic pressure Hydrostatic pressure test is latest style of testing the ability of fracture toughness of a vessel without causing harm. Hydrostatic test of vessels requires gas or water filled into the vessel if the fracture toughness of vessel is about to crack, the resistance of air reduces the explosion as they resist the inner pressure that causes the failure. Less energy is released when fracture is about to take place LT (2016). Air is a fair medium that is used for a hydrostatic test. Air is less expensive than oil and it has an easier method than water for a test. The sample will not get harmed after the test. When a failure occurs, it means that the vessel does not meet the standard and this failure can be shown when the durability fails and air begins to leak. It is important to assure the leak prevention, reliability, and safety of the pressure test. There are two methods of testing hydrostatic and pneumatic. Air is used as a medium of the hydrostatic test Arshad Mahmud (2012). The hydrostatic test measures the elastic deformation of a metal and its ability to get back to it is formal shape. Air is a safe medium as it is can compressed like water. When a cylinder blows out, air will leak which is safer than using other material due its possibility to be highly explosive. Pressure vessel Pressure Vessel is a tank that is designed to contain gases or liquids at different pressure limits. The pressure or temperature drops can be dangerous; this can cause an explosion which can injure anyone near the vessel. Thus, when designing a pressure vessel legal commands must be taken to create a vessel that is safe to perform its task. History of pressure vessels started in 1495 when Leonardo Da Vinci designed a vessel. The major problems that occurred were mainly explosions because of leakage of compressed gas or liquid, and if a fire was burning near. Engineers created safety factors as measurements of safety of pressure vessels LT (2016). Pressure vessels are used in many applications, for example, in compressed air receivers, hot water storage tank, compression chambers, mining operations and nuclear reactor vessels. A cylinder is the usual shape that is used for hydrostatic testing. It has good maintenance because it is checked every five years for public safety. When the device gets cold when in storage, fatigue might occur hence the importance of the maintenances. However, hard steel responds to it properties to handle in high pressures. Steel also provides controlled and safe environment to prevent any explosion that is possible to harm people. Shape of the vessel Cylinders have an ideal shape because it is easy to analyze when in operation and are easily made. This makes cylindrical vessels the cheapest in cost and most effective. Even though the cylinder is the ideal shape for the vessel, it comes with a few disadvantages, for example, the bigger the diameter, the more expensive the construction of the cylinder would be. The ideal size for a cylindrical vessel is 8cm, this is to avoid inspections and testing issues RR (2012). In this case, the maximum internal pressure chosen is 30MPa which allow us to design a thick-walled cylinder. Equation, and variables of thick walled cylinder will be illustrated in this report, based on them a design of a vessel will be created for hydrostatic testing. Thick Walled Cylinders There are a lot of examples for thick cylinder such as, guns, hydrostatic testing device, and high pressure hydraulic pipes. Thick cylinders are entitled to internal and external pressure. The wall thickness is large and the stress across the thickness is notable. Stresses in this case are solved by using specific boundary conditions, compatibility, and equilibrium. The problem of thick walled cylinders is that they are entitled to high pressure and temperature which is possible at constant or changing duration. The usual problem is ductile fracture of the material which is because of the geometry or the properties of the material. The real analysis of a thick cylinder is dependent on the radial and hoop stress caused by the internal pressure which stand up to the yield strength of the material. Equilibrium equation is important because we need it to relate stresses to strains and strains to displacement d(sr) / dr + sr sh / r = 0. Compatibility equations; Thick walled cylinders have three main mechanical stresses. To design a thick, cylinder the thickness of the wall should be more than 1/10 of the greatest diameter of the cylinder: 1-Hoop Stress 2-Radial Stress 3-Axial Stress (2017) Thick walled cylinder The boundary conditions of a thick-walled cylinder are: Thin surface is, at and outer surface is, at Thus -pi = A (B / ri^2) and -po = A (B / ro^2) Variables can be seen in figure 1.1, Figure 1.1 shows location of the variables (2017) Thick walled cylinder A and B in the simultaneous equations above when applied to the boundary conditions above, two constant equations for A and B will be concluded; Now, to find the final general equation, Lames equation is included thus the hoop stress and radial stress will be; (2017) Thick walled cylinder the axial stress on the case of the cylinder designed bellow which a closed end is calculated by means of equilibrium which is reduced to as shown above. Maximum shear stress follow that stresses on the cylinder at any point on the wall are principal stresses. Thus, the maximum shear stress at any point will be given by the equation of Tresca theory, Giuseppe Catalanotti (2017) Material of the vessel Pressure vessel are mainly made from steel. Rolling or forging is used to make out the shape out of the vessel. Current standards use steel to impact resistance which increases the mechanical strength. Steel is the most important material for engineering and construction in the world. Steel has a great resistance to corrosion because of its formability and durability, high tensile and yield strength and is very effective for thermal conductivity. Stiffness, ductility and yield strength are measured using tensile stress test. Impact test used to figure out the toughness and hardness of surface resistance Total Material (2016). -Yield strength of steel is 260MPa -Young modulus is between 210 GPa (Stiffness better three times than aluminum) -density of 7.7/8.1(kg/dm3) -Poissons ratio 0.30 -Thermal conductivity 11.2/48.3(W/mK) -Thermal expansion 9/27(10-6/K) Total Material (2016). Safe tank to perform a hydrostatic test must remain sealed. Lip seal technology is used in this system. O-ring were created to prevent any leakage when hydraulic hand is inserted into the chamber. A hydrostatic test should meet these requirements of the vessel to remain testing of pressure safe. Calculations Results: First, the maximum pressure that will cause yield at the internal surface of the vessel will be calculated, using the hoop and radial stresses to find the maximum shear strength and the yield strength. The equations will be used are explained in thick-walled cylinder section which are the hoop and radial stresses. In addition to the maximum shear strength equation and yield equation which will be mentioned in the following; Giuseppe Catalanotti (2017) Secondly, the elongation equation will be used to determine the size of the deformation; Delta(L) = deformation(z) * L (L) is the height of the internal cut which has a height of 0.210m Deformation(z) v = passions ratio E = the young modulus k is the ratio of external diameter on the internal diameter ro/ri First the hoop and radial stresses must be calculated hence the hoop stress equation is pi = 30MParo = 0.210m k = 2.625ri = 0.08m hoop stress is = 145.67MPausing hoop stress equation above. pi = 30MParo = 0.210m k = 2.625ri = 0.08mk = ro / ri The radial stress is = -(108.75 MPa)but r = -piusing radial stress equation above. The yield equation is pi = 30*10^6 k = 2.625using the yield equation above. = 70.18 MPa Since the yield strength of the steel is 260Mpa and it is greater than the yield at 70.18MPa pressure then the measurements of the vessel appear to be able to handle an extra 190MPa on the system before it begins to fail. The maximum shear strength Tresca isÃâà Ãâà = Since hoop and radial stresses are found, maximum shear stress can be calculated. = 145.67MPa = 108.75MPa= 70.18MPa Giuseppe Catalanotti (2017) Now finding the Elongation which has the equation Delta(L) =* L = (1 2v) * pi / E (k^2 1) = (1 2 * 0.3) * 30*10^6 / 210*10^9 * (2.625^2 1) = 9.7*10^-6 v = passions ratio of steel pi = internal pressure E = the young modulus of steel k is the ratio of external diameter on the internal diameter ro/ri Deformation= 9.7 *10^-6m Since, Delta(L) = defamation(z) * L Then, L = Length of the cylinder which is = 0.21m. See figure (3). Elongation is 9.7 * ^-6 * 0.21 = 2.037 *10^-6m from Elongation equation above Giuseppe Catalanotti (2017) Bill of Materials (6) (4) (1) (3) (5) (2) Item Number Description quantity Material (1) Vessel 1 Steel (2) O-Ring 1 Rubber (3) M14 Bolts 6 Steel (4) M12 Bolts 4 Steel (5) Pressure hand 1 Steel (6) Holding Stick 1 Steel The Design and assembly procedure A hydrostatic pressure device was designed to measure the pressure. This tank is to be attached to the hydraulic machine. Measurement of the machine were taken to design the vessel. The purpose of this device in figure (1) is to ensure that pressure tests are maintained safely and properly. This design is measured to handle pressure between 0MPa to 70MPa. The test will be progressed at 30 MPa. The material used is steel. The design contains six different main parts as shown in figure (1). This section will provide dimension and function of each part. Figure (1) Vessel Components (Exploded View) The size and the thickness are very important factors when designing a safe vessel. Figure (2) shows the circular diameter of the head of the vessel which is 21cm and that it was extruded to 34cm. Figure (2) is also a cross sectional view of the final shape of the vessel.The thichness of the wall surrounding the chamber is 6.5cm and the bottom has a thickness of 7cm. Figure (3) shows the dimsion of the chamber which is a cylinder of 8cm diameter and length of 21cm. This area is where it is expected to place the specimen. The specimen size is measured to be 20*50*4mm Figure (2) Dimension (1)Figure (3)Chamber dimensions The mechanism that will hold the vessel is smart. Figure (4) shows a diameter of a cut of 5.1 cm and 6.5 high. This area is meant to be placed into the bottom holding hand of the hydraulic machine in the Ashby building. Where the vessel has an extrusion of 27cm and height of 5cm and was created as a base of vessel as shown in figure (5). Figure (4) Bottom hand holder Figure (5) shows the base diameter and height Figure (6) shows that the base cylinder has 6 holes of M14 size. These holes were created to be tighten up with bolts of M14 shown in figure (7) on the table of the hydraulic machine. Six bolts are created and can be seen in figure (6). Figure-(6) M14 holes x6 Specification of the Bolts (F = P x A),which means that the force is equal to the pressure multiplied by the area. Figure (3) shows the internal diameter of the vessel which is 0.08m. (a = pi x (d)^2 / 4) is used to calculate the area of a cylinder, which means that (pi x (0.08m)^2 / 4) = (50.03*10^-3 m^2). The maximum pressure will be tested is 30 MPa. Since pressure is 30MPa and area is (5.03*10^-3 mm^2). then as they multiplied to bring a force of 150 kN. This means that thetotal force in the cylinder is equal to 150 kN. The question here is that will the bolts in figure (7) and (8) M14, M12 handle 150 kN of force. The research on the metric bolts shows the ability of each size of the bolts. It was shown that M14 bolt has a load proof of 66.7 kN. Figure (6) shows that there are 6 bolts of M14 is used. Now, the total force applied is divided by the number of the bolts to show the required ability of the bolts. (150 kN / 6 = 25 kN) which means that the system requires six bolts that each of them can handle 25 kN of force Metric Bolts (2016). Above it is mentioned that the load proof of each of the M14 bolts is 66.7 kN which means that a total of six M14 bolts will provide an ability of 400 kN, 400 kN of force can handle 150 kN of applied force. In brief, the bolts used in the system in figure (11) meet the requirement of the study which is 30 MPa. To ensure the safety of fixing the vessel to the machine, four M12 bolts were added. M12 bolt figure (8) has a load proof of 48.9 kN, Total load proof of four bolts is equal to 195.6 kN which has a good impact on keeping the vessel safe from any danger of being rapidly moved away from it fixed point. Eventually, the total ability of the bolts is equal to 595.6 kN which are designed to prevent the vessel from any possible danger of a maximum pressure load of 150 kNMetric Bolts (2016). Figure (7) M14 Bolt x6 Figure (1) shows 4 holes created on top of the vessel. They are M12 holes created to increase stability of the vessel and more safety in case of the vessel left it place. Bolts of M12 were created to have a length of 39cm as shown figure (8). Calculations above are measurements of parts in figure (1) . Ten bolts, 4 of M12 and 6 of M14 are attached to the base of hydraulic machine. Finally, a hydrostatic test can be done safely.à Figure (8) Long M12 bolts x4 Sealing Technology O-ring is a mechanical gasket in a shape of loop with a diameter that is made of rubber. It is designed to be fitted at circler cut which means that an o-ring will be compressed during work. It is expected to seal a joint of two parts. One mechanical benefit of the o-rings is to seal a moving hand through a vessel without an air leakage. Thus, a specific design of an o-ring will be designed to be fitted at the entry gate of the vessel for the hand to enter the vessel without air leaking (efunda) 2017. Figure (5) shows the place of the o-ring. The thickness of the o-ring is calculated to be 0.84 mm and the inner diameter of the o-ring is measured to be 79.46 mm. The o-ring designed can be seen in figure (10). Figure (9) shows the grave and the dimension of the O-ring. An o-ring is meant to be attached in this system. The groove was measured to be 4 cm away from the top of the vessel in the chamber section. The groove diameter was calculated to be 8.1 cm and the width of the groove is 1.15 mm. As hydraulic hand enters the chamber, it will pass through three rubber bands that reduces the area of the chamber making it tighter for the hand to be inserted without any leakage outside the system PS (2016). The design of the grave and the o-ring must be studied before they are designed. To design a sealing technology there are a few variables to know to create it. These variables are the bore dimeter of the outside radius, the groove diameter of the inside radius and the groove width of the axial length. The maximum stretch of the 0-ring should not be more than 5% of the grove size (efunda) 2017. Calculations of the O-ring and Results ID is the inner diameterof the o-ring and can be found if Srec the recommended stretchischosen and the groove diameter Gd the groove diameter can also be found when this equation is used; Srec = 2% ID = Gd * (1 Srec) then, ID = Gd * (0.98). The stretch of the o-ring is to make the o-ringstay at the groove tightly without falling out (efunda). ID = (39.94 * 2) 0.42 = 79.46 mm ID = 79.46mm Gd = ID / 0.98 Gd = 79.46 / 0.98 = 81mm Gd = 81mm Cross sectional Diameter (CS) of the o-ring: O-ring will be compressed in radial direction when it is attached to the groove. As the cross section of the ring is compressed between groove and bore diameter then the cross-sectional diameter must be more the depth of the groove. Which means that CS > Gd ID / 2 (efunda) 2017. CS = Gd ID / 2 = 81mm- 79.46mm / 2 = 0.77mm As CS must be > than 0.77mm then CS = 1mm C is the recommended maximum compression is 40% and must be for the ring to be compressed. The recommendation of C depended on the seal kind. Static seals do not require an axial movement in the bore(efunda) 2017. Groove Width in the Vessel (GW) = When the ring is compressed horizontally it will expand vertically. The material of the ring will be helpful to be compressed effectively. However, the groove width should be about 1.5 by the cross sectional of the o-ring diameter and this to stretch the ring vertically (efunda) 2017. GW = CS * (1.5) = 1mm * 1.5mm = 1.5mm. Figure (9) Section Cut shows the position and size of the Groove width and diameter Figure (10) O-ring CS dimeter and radius (r) Figure (11) Final Product (Thick walled Vessel) Discussion Thick Walled cylinders handle high pressures with least effects on the vessel and remain safe for future use. The deformation possible in the vessel is calculated to find the amount of elongation (the change in formation or length in an object). The elongation value is 0.002mm which is proper. The maximum pressure in the vessel is 30MPa hence finding the hoop and radial stresses to find the shear stress of the vessel and compare it with the yield strength of the vessels material and it dimensions. Therefore, the stresses applied at different sections in the chamber are calculated above and hoop stress is found to be 145.67MPa and radial stress is 108.7MPa. The maximum shear stressin the vessel is calculated from the hoop and radialstresses and it is found to be 70.18 MPa. Based on Total Material (2016) the yield strength of steel is 260 MPa. Giuseppe Catalanotti (2017) have stated that if yield strength of material is bigger than the shear stress calculated in the vessel then the vessel is safe when pressure applied. The Bolts are designed to handle keep the vessel fixed on the ground of the hydraulic machine. The total force initiated in the vessel is calculated and found to be 150kN thus the required bolts are must have a higher force than 150kN. The six M14 bolts used can handle force of 400kN and this enough for the vessel to function safely. Finally, the sealing technology, the o-Ãâà ring is designed to keep the vessel sealed when it is preforming. (efunda) 2017 stated that the maximum recommended stretch of an o-Ãâà ring is 5% and the designed o-Ãâà ring has a stretch of 2%. The groove width is 8.1cm, cal culated using 2% max. stretch and an inner diameter of 7.94cm. The CS diameter o-Ãâà ring is 1mm, which must be higher than the calculatedCS diameter which is 0.77mm. Hence, the
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