典型文献
Reliability Evaluation of Two-Phase Degradation Process with a Fuzzy Change-Point
文献摘要：
For some products,degradation mechanisms change during testing,and therefore,their degradation patterns vary at different points in time;these points are called change-points.Owing to the limitation of measure-ment costs,time intervals for degradation measurements are usually very long,and thus,the value of change-points cannot be determined.Conventionally,a certain degradation measurement is selected as the change-point in a two-phase degradation process.According to the tendency of the two-phase degradation process,the change-point is probably located in the interval between two neighboring degradation measurements,and it is a fuzzy variable.The imprecision of the change-point may lead to the incorrect product's reliability evaluation results.In this pa-per,based on the fuzzy theory,a two-phase degradation model with a fuzzy change-point and a statistical analysis method are proposed.First,a two-phase Wiener degradation model is developed according to the membership function of the change-point.Second,the reliability evaluation is carried out using maximum likelihood estimation and a fuzzy simulation approach.Finally,the proposed methodology is verified via a case study.The results of the study show that the proposed methodology can achieve more believable reliability evaluation results compared with those of the conventional approach.
文献关键词：
中图分类号：
作者姓名：
LIU Kai;DANG Wei;ZOU Tianji;Lü Congmin;LI Peng;ZHANG Haitao
作者机构：
Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]LIU Kai;DANG Wei;ZOU Tianji;Lü Congmin;LI Peng;ZHANG Haitao-.Reliability Evaluation of Two-Phase Degradation Process with a Fuzzy Change-Point)[J].上海交通大学学报（英文版）,2022(06):867-872
A类：
B类：
Reliability,Evaluation,Two,Phase,Degradation,Process,Fuzzy,Change,Point,For,some,products,degradation,mechanisms,change,during,testing,therefore,their,patterns,vary,different,points,these,called,Owing,limitation,costs,intervals,measurements,usually,very,long,thus,value,cannot,determined,Conventionally,certain,selected,two,phase,process,According,tendency,probably,located,between,neighboring,fuzzy,variable,imprecision,may,lead,incorrect,reliability,evaluation,results,In,this,per,theory,model,statistical,analysis,proposed,First,Wiener,developed,according,membership,function,Second,carried,out,using,maximum,likelihood,estimation,simulation,approach,Finally,methodology,verified,via,case,study,show,that,achieve,more,believable,compared,those,conventional
AB值：
0.533446
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