中国机械工程2017，Vol.28Issue(1)：7-12,6.DOI:10.3969/j.issn.1004-132X.2017.01.002
考虑多退化失效和突发失效之间竞争失效的可靠性评估方法
Reliability Assessment Based on Competition Failure Considering Multi-degradation and Catastrophic Failure
摘要
Abstract
A reliability assessment method of the competing failure during multi-degradation fail-ure and the catastrophic failure was proposed.Covariance was used to analyze the dependence and the degree of correlation during multivariate degradation information,reliability assessment model of multi-degradation mode was developed.In addition,multivariate normal distribution was used to es-tablish the model.The conditional probability of catastrophic failure under the degradation data was developed to analyze the effects of degradation failure on catastrophic.Reliability assessment model of competition failure was developed through the joint probability distribution function of multi-degrada-tion mode and catastrophic failure.Finally,an example of the failure data of aero engine verified the effectiveness of proposed method.关键词
多退化失效模式/突发失效/系统可靠性评估/竞争失效Key words
multi-degradation mode/catastrophic failure/system reliability assessment/compe-ting failure分类
通用工业技术引用本文复制引用
刘晓娟,王华伟,徐璇..考虑多退化失效和突发失效之间竞争失效的可靠性评估方法[J].中国机械工程,2017,28(1):7-12,6.基金项目
国家自然科学基金与中国民航局联合基金资助项目(U1233115) （U1233115）
国家自然科学基金资助项目(71401073) （71401073）
