Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity最新文献_第5页

Virtual maintenance real-world applications within virtual environments 虚拟维护虚拟环境中的实际应用程序

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653690

K. Abshire, M. Barron

引用次数: 43

A fundamental overview of accelerated-testing analytic models 加速测试分析模型的基本概述

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653809

H. Caruso, A. Dasgupta

{"title":"A fundamental overview of accelerated-testing analytic models","authors":"H. Caruso, A. Dasgupta","doi":"10.1109/RAMS.1998.653809","DOIUrl":"https://doi.org/10.1109/RAMS.1998.653809","url":null,"abstract":"Accelerated testing is often promoted as a solution to saving test time and costs. However, if ignorance about the true significance of accelerated test models prevails, then these tests could result in penalties to cost-effective product development efforts rather than the hoped-for reductions. Using physics of failure models, this paper emphasizes that: there are no \"magic\" analytical models that simply, conveniently, and accurately estimate the life of complex manufactured assemblies and products; each analytical model describes physical change mechanisms associated with specific materials when subjected to particular environmental loading conditions; because product assemblies consist of many different materials and structural configurations, a product's wearout behavior must be evaluated in terms of several different, sometimes competing, physical change models; in real-life and in accelerated testing, different elements of a product will age or fatigue at different rates, depending on what they are made of, how they are used, and what environmental loading conditions prevail at the site of each element; accelerated testing is assumed to provide leverage for increasing the rate at which knowledge is gathered about a product as well as saving test time and costs. However, accelerated testing can also magnify the negative effects of invalid assumptions and poorly defined boundary conditions; and successful accelerated testing relies on ensuring that all parties involved have reasonable expectations of what this product development tool can and cannot do just as much as on good laboratory procedures.","PeriodicalId":275301,"journal":{"name":"Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity","volume":"285 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123728350","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: 56

A unified approach to random-fatigue reliability quantification under random loading 随机载荷下随机疲劳可靠性量化的统一方法

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653797

D. Kececioglu, Mingxiao Jiang, Fengbin Sun

引用次数: 17

The new SAE FMECA standard 新的SAE FMECA标准

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653561

J. Bowles

{"title":"The new SAE FMECA standard","authors":"J. Bowles","doi":"10.1109/RAMS.1998.653561","DOIUrl":"https://doi.org/10.1109/RAMS.1998.653561","url":null,"abstract":"The new SAE FAMECA standard goes a long way toward bringing FMECA (failure mode effects and criticality analysis) into line with modern design practices. This is accomplished through three major changes. (1) The new standard describes the FMECA procedure as a process to be used throughout the product development cycle, rather than as a task to be done after the design is complete. It emphasizes the role of functional and interface FMECAs as well as that of the traditional piece part FMECA. (2) The concept of \"failure mode equivalence\" enables failure modes that have equivalent effects to be analyzed together and reduces much of the duplicative work generated by traditional component-by-component fault analyses. This concept allows the analyses of functional failure modes done early in the design process to be carried over to the effects of interface and piece-part failure modes analyzed later in the design. (3) Criticality is assessed using a Pareto ranking procedure based on the probability and the severity of the failure mode. This is more broadly applicable than the use of criticality numbers as defined in Mil-Std-1629 and it avoids some of the mathematical difficulties of the RPN analysis used in the Automobile FMECA standard, SAE J1739.","PeriodicalId":275301,"journal":{"name":"Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122218966","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: 86

On the interactions of chemical-process design under uncertainty and maintenance-optimisation 不确定条件下化工工艺设计与维护优化的相互作用

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653796

C. Vassiliadis, E. N. Pistikopoulos

{"title":"On the interactions of chemical-process design under uncertainty and maintenance-optimisation","authors":"C. Vassiliadis, E. N. Pistikopoulos","doi":"10.1109/RAMS.1998.653796","DOIUrl":"https://doi.org/10.1109/RAMS.1998.653796","url":null,"abstract":"While the impact of uncertainty in process parameters (such as product demands and prices, physical properties, etc.) on the design and operation of a chemical process has been widely recognised and studied over the last fifteen years, relatively little progress has been made in studying the influence of process uncertainty on maintenance scheduling and optimisation. This paper presents a novel optimisation formulation and a decomposition solution strategy for addressing the problem of maintenance scheduling under uncertainty in the context of chemical process design and operation. The proposed formulation features an expected profit objective function which takes into account the transitions between the different states of the chemical system, due to equipment failure; corrective and preventive maintenance policies are explicitly considered. The resulting model corresponds to a large scale mixed-integer nonlinear optimal control problem. By exploiting reliability properties, an effective two-step decomposition solution procedure is then proposed, which as illustrated with a process example problem, depicts an optimal preventive maintenance policy in the presence of process uncertainty: the time instants of required maintenance actions over a time horizon and the optimal sequence of components on which preventive maintenance is to be performed.","PeriodicalId":275301,"journal":{"name":"Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122771406","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: 4

Redundancy verification analysis-an alternative to FMEA for low cost missions 冗余验证分析——低成本任务的FMEA替代方案

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653574

J. Sincell, R. Perez, P. Noone, D. Oberhettinger

引用次数: 3

Determining warranty benefits for automobile design changes 确定汽车设计变更的保修利益

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653636

K. Majeske, G. Herrin

引用次数: 20

The need for measurement based reliability evaluation 基于测量的可靠性评估的必要性

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653749

M. Hecht

引用次数: 0

Efficient algorithms for microprocessor testing 微处理器测试的高效算法

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653641

B. Joshi, S. Hosseini

{"title":"Efficient algorithms for microprocessor testing","authors":"B. Joshi, S. Hosseini","doi":"10.1109/RAMS.1998.653641","DOIUrl":"https://doi.org/10.1109/RAMS.1998.653641","url":null,"abstract":"In this paper, the authors present simple yet efficient fault detection algorithms for microprocessor systems. They propose test generation algorithms to generate test sequences. These test sequences are used by the proposed testing algorithms. The test generation algorithms are divided into two classes. The data processing unit test generator generates tests for every functional block in the ALU while the control unit test generator generates tests for fault detection in instruction and register decoding, buses, and registers. The authors show that the major advantage of the test generation algorithm for the data processing unit is that it ignores the implementation details and thus it can be used for a wide spectrum of technologies. They also show analytically that the running time of the control unit test algorithm is in O(n) where n is the number of instructions. The simulation techniques used and the experimental results obtained are presented. The concept of functionality tests has been strictly maintained. The simulation results suggest that the technique is independent of the implementation. This technique can be easily applied to larger multiprocessor systems where each processor can perform quick yet efficient tests on a subset of the microprocessors.","PeriodicalId":275301,"journal":{"name":"Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126436752","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

Software reliability: a continuing dilemma 软件可靠性:一个持续的困境

Annual Reliability and Maintainability Symposium. 1998 Proceedings. International Symposium on Product Quality and Integrity Pub Date : 1998-01-19 DOI: 10.1109/RAMS.1998.653747

D. D. Bell, S. Keene

引用次数: 2