Proceedings of 1996 Annual Reliability and Maintainability Symposium最新文献_第4页

CATS-an automated user interface for software development and testing cats—用于软件开发和测试的自动化用户界面

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500657

D. I. Heimann

引用次数: 3

Commercial-off-the shelf (COTS): a challenge to military equipment reliability 商用现货(COTS):对军事装备可靠性的挑战

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500634

E. Demko

{"title":"Commercial-off-the shelf (COTS): a challenge to military equipment reliability","authors":"E. Demko","doi":"10.1109/RAMS.1996.500634","DOIUrl":"https://doi.org/10.1109/RAMS.1996.500634","url":null,"abstract":"Commercial-off-the shelf (COTS) military equipment offers the promise of technology advancement, low cost and reduced acquisition time. Unfortunately, it also offers the opportunity for a reliability and logistics disaster because commercial parts, standards, and practices may not meet military requirements. Additionally, commercial vendors have little or no experience in providing the kind of technical data required to support military deployment logistics. COTS hardware is expected to have the following characteristics: low cost; currently available from multiple suppliers; and built to documented standards in high volume production with a mature design. The reliability challenge in the next decade will be to manage COTS to take advantage of the promise and avoid the disaster. This can be done by carefully selecting the COTS vendors, thoroughly testing the hardware/software and applying only those analyses and data requirements (ESS, EQT, verification testing, prediction, FMEA, derating, parts control and FRACAS/FRB) to ensure reliability performance and logistics support. This paper offers some guidance in managing COTS program elements and provides insight into their impact on reliability.","PeriodicalId":393833,"journal":{"name":"Proceedings of 1996 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115126453","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

Dynamic analysis of qualitative circuits for failure mode and effects analysis 定性电路的动态分析，用于故障模式和影响分析

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500639

D. R. Pugh, N. Snooke

{"title":"Dynamic analysis of qualitative circuits for failure mode and effects analysis","authors":"D. R. Pugh, N. Snooke","doi":"10.1109/RAMS.1996.500639","DOIUrl":"https://doi.org/10.1109/RAMS.1996.500639","url":null,"abstract":"There are a number of reason for wanting to generate FMEAs as soon in the design process as possible; three of the more notable being safety, reliability and cost. The Flame system provides electrical engineers with a means of automating FMEA using, amongst other techniques, qualitative circuit analysis. Until recently, the qualitative circuit simulator with Flame has only been able to generate failure descriptions for circuits containing a set of relatively simple components; for example, bulbs, resistors, connectors, wires and switches. Representing and reasoning about the operation of CPUs, multi-way switches, sensors, multi-speed motors, and other complex components was not possible due to their intricate effect on a circuit. The paper describes how the behaviour of such components and their failure modes can now be represented; and gives an example of analysing a central door locking circuit containing such complex components. The technology which has facilitated such advances is the dynamic analysis of qualitative circuits. This allows the circuit analyser in Flame to represent and reason about dependencies within a circuit; for example, a relay switch state depends on the state of the coil, and ECU output on the state of the inputs. Because of these advances, Flame can now perform FMEAs of large complex circuits-as found in modern automobiles.","PeriodicalId":393833,"journal":{"name":"Proceedings of 1996 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121549303","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: 22

Accelerated life testing for products without sequence effect 无顺序效应产品的加速寿命试验

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500684

Z. Bluvband, L. Peshes

引用次数: 4

FMEA/CIL implementation for the Space Shuttle new turbopumps 航天飞机新型涡轮泵的FMEA/CIL实施

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500641

M. Littlefield

{"title":"FMEA/CIL implementation for the Space Shuttle new turbopumps","authors":"M. Littlefield","doi":"10.1109/RAMS.1996.500641","DOIUrl":"https://doi.org/10.1109/RAMS.1996.500641","url":null,"abstract":"To satisfy a reliability requirement which necessitated the implementation of the Space Shuttle high pressure oxidizer turbopump (HPOTP) failure mode effects analysis (FMEA) and critical items list (CIL), Pratt & Whitney (P&W) developed a plan that emphasized the utilization of existing systems and the standardization of subcontractor reporting documentation. Prior to acceptance testing of the first flight HPOTP, an audit of the quality assurance records for all CIL required inspections was performed to determine if the inspections had been made and accepted by quality assurance (QA). 99.9% of the CIL inspections were verified as being successfully completed, far exceeding the 90% NASA verification requirement. This level of compliance was achieved several years sooner and with less than a third the manpower utilized by another contractor's system. The implementation and audit activities uncovered deficiencies that forced quick improvements to inspection methods, documentation and material acceptance practices. Additionally, it reduced the number of government mandatory inspections thus reducing cost and removing potential schedule constraints. Essential to the success of CIL implementation were the analytical procedures used to identify and ensure the test/inspectability of the inspections, testing and process controls (CIL characteristics) performed to minimize the probability of critical part failures.","PeriodicalId":393833,"journal":{"name":"Proceedings of 1996 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121811237","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: 5

Modeling and simulation of a satellite constellation based on Petri nets 基于Petri网的卫星星座建模与仿真

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500644

J.-F. Ereau, M. Saleman

引用次数: 9

An overview of environmental reliability testing 环境可靠性试验概述

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500649

H. Caruso

引用次数: 18

A combined analysis approach to assessing requirements for safety critical real-time control systems 安全关键实时控制系统需求评估的综合分析方法

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500650

P. L. Goddard

引用次数: 16

A methodology for preventive maintenance analysis under transient response 一种暂态响应下预防性维修分析方法

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500683

O. Okogbaa, Xia Peng

引用次数: 14

R&M in an era of acquisition reform [reliability and maintenance] 收购改革时代的R&M【可靠性与维护】

Proceedings of 1996 Annual Reliability and Maintainability Symposium Pub Date : 1996-01-22 DOI: 10.1109/RAMS.1996.500633

J. Caroli, T. Fennell, M. Gorniak, J. F. Reilly

{"title":"R&M in an era of acquisition reform [reliability and maintenance]","authors":"J. Caroli, T. Fennell, M. Gorniak, J. F. Reilly","doi":"10.1109/RAMS.1996.500633","DOIUrl":"https://doi.org/10.1109/RAMS.1996.500633","url":null,"abstract":"Acquisition Reform is an initiative intended to restructure the Department of Defense (DoD) weapon system procurement process by minimizing government oversight and increasing reliance on commercial products and practices. Rome Laboratory is undertaking many initiatives to ensure the reliability and maintainability (R&M) of the next generation of commercial and military systems developed in this new acquisition environment. Several R&M specifications and standards reform initiatives are underway which include: developing nongovernment replacement standards; developing military handbooks; and forming partnerships with industry associations and professional societies. In addition to the new standardization activities, Rome Laboratory is also undertaking a number of research activities to help implement Acquisition Reform. Process oriented approaches to assure system reliability at all levels of indenture are being developed. It is recognized that indiscriminate acceptance of commercial products without adequate reliability assessment may adversely affect system reliability and readiness. To alleviate this concern, Rome Laboratory is assessing the reliability of commercial parts, nondevelopmental items, and plastic encapsulated microcircuits in military equipment environments. By providing an overview of these activities, this paper reveals the great impact Acquisition Reform is having on R&M standardization and on the direction of research at Rome Laboratory.","PeriodicalId":393833,"journal":{"name":"Proceedings of 1996 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129400136","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