电子学报2012，Vol.40Issue(5)：977-982,6.DOI:10.3969/j.issn.0372-2112.2012.05.018
融合多源信息的维纳过程性能退化产品的可靠性评估
Reliability Assessment of Products with Wiener Process Degradation by Fusing Multiple Information
摘要
Abstract
With respect to Wiener process-degradation products,a method which fused prior degradation information,life data information and current degradation data was proposed to assess their reliability.Firstly,on the basis of the prior degradation information and the life data information,parameters' prior distributions were established by EM method;secondly,by using Bayesian method,prior distributions could be updated to posterior distributions;then the reliability was evaluated based on the posterior distributions.The proposed method can update the reliability evaluation results whenever new degradation data is available,so it is suitable for real-time reliability assessment.Finally,the validity and practical value of this method is verified by an example,relating to reliability assessment of the metallized film capacitor.关键词
实时可靠性评估/维纳过程/期望最大化算法/贝叶斯方法/金属化膜电容器Key words
real-time reliability assessment/Wiener process/expectation- maximization (EM) algorithm/Bayesian method/metallized film capacitor分类
通用工业技术引用本文复制引用
王小林,郭波,程志君..融合多源信息的维纳过程性能退化产品的可靠性评估[J].电子学报,2012,40(5):977-982,6.基金项目
国家青年自然科学基金(No.60904002) （No.60904002）
