Download or read book Reliability Issues for DOD Systems written by National Research Council and published by National Academies Press. This book was released on 2002-12-26 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final report of the National Research Council's (NRC) Panel on Statistical Methods for Testing and Evaluating Defense Systems (National Research Council, 1998) was intended to provide broad advice to the U.S. Department of Defense (DoD) on current statistical methods and principles that could be applied to the developmental and operational testing and evaluation of defense systems. To that end, the report contained chapters on the use of testing as a tool of system development; current methods of experimental design; evaluation methods; methods for testing and assessing reliability, availability, and maintainability; software development and testing; and validation of modeling and simulation for use in operational test and evaluation. While the examination of such a wide variety of topics was useful in helping DoD understand the breadth of problems for which statistical methods could be applied and providing direction as to how the methods currently used could be improved, there was, quite naturally, a lack of detail in each area. To address the need for further detail, two DoD agencies-the Office of the Director of Operational Test and Evaluation and the Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics-asked the NRC's Committee on National Statistics to initiate a series of workshops on statistical issues relevant to defense acquisition. The aim of each workshop is to inform DoD about the methods that represent the statistical state of the art and, through interactions of the statistical and defense communities, explore their relevance for DoD application.
Download or read book Reliability Issues for DOD Systems written by National Research Council and published by National Academies Press. This book was released on 2002-11-26 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final report of the National Research Council's (NRC) Panel on Statistical Methods for Testing and Evaluating Defense Systems (National Research Council, 1998) was intended to provide broad advice to the U.S. Department of Defense (DoD) on current statistical methods and principles that could be applied to the developmental and operational testing and evaluation of defense systems. To that end, the report contained chapters on the use of testing as a tool of system development; current methods of experimental design; evaluation methods; methods for testing and assessing reliability, availability, and maintainability; software development and testing; and validation of modeling and simulation for use in operational test and evaluation. While the examination of such a wide variety of topics was useful in helping DoD understand the breadth of problems for which statistical methods could be applied and providing direction as to how the methods currently used could be improved, there was, quite naturally, a lack of detail in each area. To address the need for further detail, two DoD agencies-the Office of the Director of Operational Test and Evaluation and the Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics-asked the NRC's Committee on National Statistics to initiate a series of workshops on statistical issues relevant to defense acquisition. The aim of each workshop is to inform DoD about the methods that represent the statistical state of the art and, through interactions of the statistical and defense communities, explore their relevance for DoD application.
Download or read book Reliability Growth written by Panel on Reliability Growth Methods for Defense Systems and published by National Academy Press. This book was released on 2015-03-01 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: A high percentage of defense systems fail to meet their reliability requirements. This is a serious problem for the U.S. Department of Defense (DOD), as well as the nation. Those systems are not only less likely to successfully carry out their intended missions, but they also could endanger the lives of the operators. Furthermore, reliability failures discovered after deployment can result in costly and strategic delays and the need for expensive redesign, which often limits the tactical situations in which the system can be used. Finally, systems that fail to meet their reliability requirements are much more likely to need additional scheduled and unscheduled maintenance and to need more spare parts and possibly replacement systems, all of which can substantially increase the life-cycle costs of a system. Beginning in 2008, DOD undertook a concerted effort to raise the priority of reliability through greater use of design for reliability techniques, reliability growth testing, and formal reliability growth modeling, by both the contractors and DOD units. To this end, handbooks, guidances, and formal memoranda were revised or newly issued to reduce the frequency of reliability deficiencies for defense systems in operational testing and the effects of those deficiencies. "Reliability Growth" evaluates these recent changes and, more generally, assesses how current DOD principles and practices could be modified to increase the likelihood that defense systems will satisfy their reliability requirements. This report examines changes to the reliability requirements for proposed systems; defines modern design and testing for reliability; discusses the contractor's role in reliability testing; and summarizes the current state of formal reliability growth modeling. The recommendations of "Reliability Growth" will improve the reliability of defense systems and protect the health of the valuable personnel who operate them.
Download or read book Statistics Testing and Defense Acquisition written by National Research Council and published by National Academies Press. This book was released on 1998-05-08 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: For every weapons system being developed, the U.S. Department of Defense (DOD) must make a critical decision: Should the system go forward to full-scale production? The answer to that question may involve not only tens of billions of dollars but also the nation's security and military capabilities. In the milestone process used by DOD to answer the basic acquisition question, one component near the end of the process is operational testing, to determine if a system meets the requirements for effectiveness and suitability in realistic battlefield settings. Problems discovered at this stage can cause significant production delays and can necessitate costly system redesign. This book examines the milestone process, as well as the DOD's entire approach to testing and evaluating defense systems. It brings to the topic of defense acquisition the application of scientific statistical principles and practices.
Download or read book System Reliability Toolkit written by David Nicholls and published by RIAC. This book was released on 2005 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reliability Maintainability and Supportability written by Michael Tortorella and published by John Wiley & Sons. This book was released on 2015-02-25 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the core systems engineering tasks of writing, managing, and tracking requirements for reliability, maintainability, and supportability that are most likely to satisfy customers and lead to success for suppliers This book helps systems engineers lead the development of systems and services whose reliability, maintainability, and supportability meet and exceed the expectations of their customers and promote success and profit for their suppliers. This book is organized into three major parts: reliability, maintainability, and supportability engineering. Within each part, there is material on requirements development, quantitative modelling, statistical analysis, and best practices in each of these areas. Heavy emphasis is placed on correct use of language. The author discusses the use of various sustainability engineering methods and techniques in crafting requirements that are focused on the customers’ needs, unambiguous, easily understood by the requirements’ stakeholders, and verifiable. Part of each major division of the book is devoted to statistical analyses needed to determine when requirements are being met by systems operating in customer environments. To further support systems engineers in writing, analyzing, and interpreting sustainability requirements, this book also Contains “Language Tips” to help systems engineers learn the different languages spoken by specialists and non-specialists in the sustainability disciplines Provides exercises in each chapter, allowing the reader to try out some of the ideas and procedures presented in the chapter Delivers end-of-chapter summaries of the current reliability, maintainability, and supportability engineering best practices for systems engineers Reliability, Maintainability, and Supportability is a reference for systems engineers and graduate students hoping to learn how to effectively determine and develop appropriate requirements so that designers may fulfil the intent of the customer.
Download or read book Final Report of the Joint Logistics Commanders Electronic Systems Reliability Workshop written by and published by . This book was released on 1975 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Communications Joint Tactical Information Distribution System Issues written by United States. General Accounting Office and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling Procedures and Tables for Life and Reliability Testing based on Exponential Distribution written by United States. Office of the Assistant Secretary of Defense (Supply and Logistics) and published by . This book was released on 1960 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Personnel written by United States. Government Accountability Office and published by DIANE Publishing. This book was released on 2005 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Personnel written by Derek B. Stewart and published by DIANE Publishing. This book was released on 2006-03 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reliability and Availability Engineering written by Kishor S. Trivedi and published by Cambridge University Press. This book was released on 2017-08-03 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn about the techniques used for evaluating the reliability and availability of engineered systems with this comprehensive guide.
Download or read book Department of Defense Authorization for Appropriations for Fiscal Year 2011 written by United States. Congress. Senate. Committee on Armed Services and published by . This book was released on 2010 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defense inventory improvements needed in DOD s implementation of its longterm strategy for Total Asset Visibility of its inventory report to the Chairman Subcommittee on Defense Committee on Appropriations House of Representatives written by and published by DIANE Publishing. This book was released on with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global war on terrorism DOD needs to improve the reliability of cost data and provide additional guidance to control costs report to congressional committees written by and published by DIANE Publishing. This book was released on 2005 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: GAO found numerous problems in DOD's processes for recording and reporting costs for GWOT, raising significant concerns about the overall reliability of DOD's reported cost data. As a result, neither DOD nor Congress can reliably know how much the war is costing and details on how appropriated funds are being spent, or have historical data useful in considering future funding needs. On the basis of GAO's work, DOD is taking steps to improve its cost reporting. Factors affecting the reliability of DOD's reported costs include long-standing deficiencies in DOD's financial systems, the lack of a systematic process to ensure that data are correctly entered into those systems, inaccurately reported costs, and difficulties in properly categorizing costs. In at least one case, reported costs may be materially overstated. Specifically, DOD's reported obligations for mobilized Army reservists in fiscal year 2004 were based primarily on estimates rather than actual information and differed from related payroll information by as much as $2.1 billion, or 30 percent of the amount DOD reported in its cost report. In addition, GAO found inadvertent double counting in the Navy's and Marine Corps' portion of DOD's reported costs amounting to almost $1.8 billion from November 2004 through April 2005. Because it was not feasible to examine all reported costs and significant data reliability problems existed, GAO was not able to determine the extent that total costs were misstated.
Download or read book Defense Acquisitions written by Michael J. Sullivan and published by DIANE Publishing. This book was released on 2010-08 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 2003, the Future Combat System (FCS) program has been the centerpiece of the Army¿s efforts to transition to a lighter, more agile, and more capable combat force. In 2009, however, concerns over the program¿s performance led to the Secretary of Defense¿s decision to significantly restructure and ultimately cancel the program. As a result, the Army has outlined a new approach to ground force modernization. This report: (1) outlines the Army¿s preliminary post-FCS plans; and (2) identifies the challenges and opportunities the DoD and the Army must address as they proceed with Army ground force modernization efforts. The report evaluated FCS equipment, and interviewed DoD and Army officials. Includes recommendations. Illustrations.
Download or read book Product Design and Testing for Automotive Engineering Volume II written by Young J. Chiang and published by SAE International. This book was released on 2024-09-17 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Failure modes and effects analysis (FMEA); Reliability; Product Development; Design Process; Test Procedures "Explore Product Design and Testing for Automotive Engineering: Volume II, an essential guide reshaping vehicle manufacturing with unprecedented reliability. As part of SAE International’s DOE for Product Reliability Growth series, this practical resource introduces cutting-edge methodologies crucial for predicting and improving product reliability in an era of automotive electrification. The book navigates statistical tolerance design, showcasing how variability in part fabrication and assembly can enhance reliability and sustainability. Key topics include: - Statistical tolerance design's impact on manufacturing and material selection, focusing on non-normal distributions' effects on product assembly and cost. Methods like maximum likelihood estimators and Monte Carlo simulations are used for assembly strategy synthesis. - Reliability DOEs using log-location-scale distributions to estimate lifetimes of non-normally distributed components, especially in accelerated life testing. It covers transformations optimizing parts and system designs under the lognormal distribution. - Weibull distribution (DOE-W) for characterizing lifetimes affected by various failure modes, detailing parameter assessment methods and real-world applications. The book also introduces reliability design of experiments based on the exponential distribution (DOE-E). - Importance of predicting lifecycles and enhancing reliability through qualitative and stepwise accelerated life tests. Integration of physics of failure with statistical methods like Weibull statistics and lognormal approximation enhances analysis credibility. - Inferential mechanisms such as the Arrhenius and Eyring models in predicting automotive component lifecycles, refining product life prediction based on reliability DOEs. Whether you're an engineer, researcher, or automotive professional, this book equips you to navigate reliability engineering confidently. Revolutionize your approach to product design and testing with Product Design and Testing for Automotive Engineering, your definitive companion in shaping the future of automotive reliability." (ISBN 9781468607703 ISBN 9781468607697 ISBN 9781468607727 DOI 10.4271/9781468607697)
