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Proceedings., Annual Reliability and Maintainability Symposium最新文献

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Ultrahigh reliability estimates through simulation 通过仿真进行超高可靠性估计
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49625
R. Geist, M. Smotherman
{"title":"Ultrahigh reliability estimates through simulation","authors":"R. Geist, M. Smotherman","doi":"10.1109/ARMS.1989.49625","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49625","url":null,"abstract":"A statistical variance reduction technique called importance sampling is described, and its effectiveness in estimating ultrahigh reliability of life-critical electronics systems is compared with that of the widely used HARP and SURE analytic tools. Importance sampling is seen to provide more accurate reliability estimates with relatively little computational expense for the models studied. The technique is also seen to provide a convenient method for handling globally time-dependent failure processes and uncertainty in model parameter values. Extreme sensitivity of the importance sample algorithm to its bias parameters is illustrated, and a novel technique for selection of these parameters is proposed.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127226540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 40
The cost of poor repair process quality (COPRPQ) 维修过程质量差的成本(COPRPQ)
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49554
T. Hall
{"title":"The cost of poor repair process quality (COPRPQ)","authors":"T. Hall","doi":"10.1109/ARMS.1989.49554","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49554","url":null,"abstract":"A cost of poor-quality model is presented for a typical repair process through a warehouse environment. It is a probabilistic cost model, consisting of a set of repair process states; a set of conditions of the unit (truly defective/nondefective), in warranty/out-of-warranty within-keep level/out-of-keep level; a distribution on the set of conditions, a transition matrix, containing the transition probabilities from state to state, depending on the unit's condition; a set of paths, i.e. all ordered (finite) sequences of repair process states through which a unit can possibly pass; a set of optimal paths; and a cost matrix containing the costs of making a transition from state to state.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122327947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated reliability growth testing 综合可靠性增长试验
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49593
A.W. Benton, L. H. Crow
{"title":"Integrated reliability growth testing","authors":"A.W. Benton, L. H. Crow","doi":"10.1109/ARMS.1989.49593","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49593","url":null,"abstract":"Testing in development programs for complex systems consists of numerous types, from early prototype testing to functional testing, environmental testing, safety testing, reliability demos, and test-analyze-and-fix (TAAF) on into production. An integrated reliability growth program is suggested to make use of all of these tests, providing an opportunity to find and correct reliability problems throughout development and helps avoid costly get-well programs later for reliability. The authors consider the development of reliability growth under integrated reliability growth and present results and lessons learned derived through experiences in US Army development programs.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129842310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Monte Carlo evaluation of a dynamic reliability problem with an application to a case of partial cuts 动态可靠性问题的蒙特卡罗评估及其在部分切割情况下的应用
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49584
T. Tanaka, H. Kumamoto, K. Inoue
{"title":"Monte Carlo evaluation of a dynamic reliability problem with an application to a case of partial cuts","authors":"T. Tanaka, H. Kumamoto, K. Inoue","doi":"10.1109/ARMS.1989.49584","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49584","url":null,"abstract":"A Monte Carlo method is presented for evaluating a dynamic reliability problem where system components are operating in time. Three major developments are discussed. First, a general framework is developed for analyzing the relationship between a priori information and estimator variance. Second, the general framework is applied to a two-terminal reliability problem and a fault-tree analysis. Finally, the Monte Carlo method developed is applied to a case in which only a subset of cuts is known.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128681799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Integration of reliability and tolerance effect analysis 集成可靠性和公差效应分析
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49642
A. Brombacher, H. DeBoer, J. van't Loo
{"title":"Integration of reliability and tolerance effect analysis","authors":"A. Brombacher, H. DeBoer, J. van't Loo","doi":"10.1109/ARMS.1989.49642","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49642","url":null,"abstract":"The authors focus on the development of systems with online optimized reliability. They argue that in the case of online analysis, reliability analysis should have the same importance as functional analysis currently has, and that reliability should be integrated in a design. Further the function of a quality assurance team is only to check this built-in reliability, not to make a functional correct design also reliable. Therefore the designer (or design team) should be able to perform reliability analysis during the system synthesis. Although conventional failure rate prediction using, for example MIL-HDBK-217 methods, has proven to be very useful, there are often considerable numbers of failures due to unexpected causes. Analysis of these failures shows that a considerable group of these unexpected failures is due to a combination of tolerance effects and part (over-) stress. A method is described to predict these failures.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124162770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PC software solutions for MTTR predictions MTTR预测的PC软件解决方案
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49655
R.J. Fousch
{"title":"PC software solutions for MTTR predictions","authors":"R.J. Fousch","doi":"10.1109/ARMS.1989.49655","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49655","url":null,"abstract":"The various methods available in computerized maintainability prediction methods (for MIL-HDBK-472, Notice 1, Procedure 5) and the relative factors that should be considered in evaluating software techniques for MTTR (mean time to repair) and associated predictions are discussed. The advantages and disadvantages of each method are described, with a more detailed focus on the best method presented. A microcomputer is used as the basis for design evaluations, since PCs are widely available.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127590699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Economic reliability testing of fiber optic systems 光纤系统经济可靠性试验
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49633
J. Healy, B. Hoadley, B. Lewin
{"title":"Economic reliability testing of fiber optic systems","authors":"J. Healy, B. Hoadley, B. Lewin","doi":"10.1109/ARMS.1989.49633","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49633","url":null,"abstract":"One method suppliers can use to assure that their fiber optic systems consistently meet the purchaser's early life reliability requirements at the time of shipment is to do system reliability testing. It is suggested that the amount of reliability testing that is performed by suppliers should be based on minimizing costs. The authors address the problem of simultaneously determining the time on test for each reliability test along with the fraction of systems to test. They also describe a procedure for the reliability test, provide a set of typical test performance parameters, and provide a method for calculating the expected number of failures in the reliability test for comparison with the number of failures observed.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125804024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A nontraditional approach to reliability (fighter aircraft application) 一种非传统的可靠性方法(战斗机应用)
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49608
W. D. Yates
{"title":"A nontraditional approach to reliability (fighter aircraft application)","authors":"W. D. Yates","doi":"10.1109/ARMS.1989.49608","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49608","url":null,"abstract":"The author suggests that 85% of the reliability factors that influence the customer's cost of ownership are established prior to full-scale development; therefore reliability needs to be considered before that point. To that end, the author has prototyped an expert system which recommends a prioritized list of design alternatives to improve the reliability of the system under study. When faced with a design problem, the designer can use the expert system to derive a thorough list of preassessed design alternatives.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131984298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling human errors in repairable systems 对可修复系统中的人为错误进行建模
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49638
B. Dhillon
{"title":"Modeling human errors in repairable systems","authors":"B. Dhillon","doi":"10.1109/ARMS.1989.49638","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49638","url":null,"abstract":"The author presents the reliability analysis of repairable and nonrepairable redundant systems with human errors and common-cause failures. Parallel, k-out-of-n, and standby systems are studied. Reliability, mean-time-to-failure, steady-state availability, and variance-of-time-to-failure formulas are developed. Some plots are presented. The plots clearly demonstrate that system steady-state availability, mean-time-to-failure, and reliability decrease with increasing values of human error rate.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132011400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
PRAISE: A PC-based reliability evaluator 一个基于pc的可靠性评估器
Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI: 10.1109/ARMS.1989.49652
R. Meyers, M. M. Roffman
{"title":"PRAISE: A PC-based reliability evaluator","authors":"R. Meyers, M. M. Roffman","doi":"10.1109/ARMS.1989.49652","DOIUrl":"https://doi.org/10.1109/ARMS.1989.49652","url":null,"abstract":"The US Naval Air Development Center has developed the parametric reliability, availability, integrated system evaluator (PRAISE). PRAISE is a generalized, user-friendly microcomputer-based mathematical model with graphics capability, allowing the user to perform reliability/availability evaluations and design tradeoff analyses for highly complex redundant systems. Inherently, the calculations of reliability, maintainability, and availability (RMA) for highly redundant systems require the solution of complex equations and/or sets of equations. Additionally, personnel performing these calculations must be extremely knowledgeable in RMA concepts to properly select the appropriate equations for the calculations needed. Typically, these equations must be derived/researched whenever needed. This generalized PC-based math model permits the performance of these calculations quickly and accurately by personnel not highly experienced in complex R&M methodologies.<<ETX>>","PeriodicalId":430861,"journal":{"name":"Proceedings., Annual Reliability and Maintainability Symposium","volume":"33 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133786396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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