摘要
任何元器件的故障是以一定的故障模式表现出来的。当一个元器件以不同的故障模式发生故障时,设备产生的后果是不同的。结合FMECA(故障模式、影响及危害度分析)深入分析了故障模式的影响及其危害度,以提高可靠性预计的精度。 建立了结合FMECA可靠性预计模型。可预计产品的任务可靠度和致命故障间隔的任务时间。为便于推广,编制了相应的计算机程序并进行了实例运算。还对结合FMECA可靠性预计法和常规可靠性预计法进行了比较。
The failure of any part always displays certain failure mode.When a part fails with different failure modes,the effects of these failure modes on product are also different.In order to improve the accuracy of reliability prediction integrating with FMECA,this paper analyzes the effect of failure mode and its criticality thoroughly.The reliability prediction model integrated with FMECA is established in this paper.It can predict product's mission reliability and mission time between criticality failures.In order to facilitate popularization,the author developed a related software package and ran some practical cases.Finally,the integrating with FMECA reliability prediction method is compared with the conventional one.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1992年第1期32-37,共6页
Journal of Beijing University of Aeronautics and Astronautics
关键词
FMECA
可靠性
预计
严酷度
FMECA,reliability prediction,severity,mission reliability.
