系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
SYSTEMS ENGINEERING--THEORY & PRACTICE
2010年
3期
543-549
,共7页
可靠性评估%性能退化数据%Wiener过程%Bayes方法%金属化膜电容器
可靠性評估%性能退化數據%Wiener過程%Bayes方法%金屬化膜電容器
가고성평고%성능퇴화수거%Wiener과정%Bayes방법%금속화막전용기
reliability assessment%degradation data%Wiener process%Bayesian method%metallized film capacitor
在分析性能退化数据模型的基础上,针对Wiener过程性能退化产品提出了一种可靠性评估的Bayes方法,给出了参数的递推估计.该方法计算简单,并且能随着性能退化试验进行不断更新可靠性评估结果,而不需要重新处理历史数据,因而也适合于实时可靠性评估.最后通过金属化膜电容器可靠性评估实例分析验证了该方法的适用性,并进行了相关讨论.
在分析性能退化數據模型的基礎上,針對Wiener過程性能退化產品提齣瞭一種可靠性評估的Bayes方法,給齣瞭參數的遞推估計.該方法計算簡單,併且能隨著性能退化試驗進行不斷更新可靠性評估結果,而不需要重新處理歷史數據,因而也適閤于實時可靠性評估.最後通過金屬化膜電容器可靠性評估實例分析驗證瞭該方法的適用性,併進行瞭相關討論.
재분석성능퇴화수거모형적기출상,침대Wiener과정성능퇴화산품제출료일충가고성평고적Bayes방법,급출료삼수적체추고계.해방법계산간단,병차능수착성능퇴화시험진행불단경신가고성평고결과,이불수요중신처리역사수거,인이야괄합우실시가고성평고.최후통과금속화막전용기가고성평고실례분석험증료해방법적괄용성,병진행료상관토론.
This paper presents a Bayesian method for reliability assessment of products whose perfor-mance degradation process are modeled by Wiener process.A recursive method for parameter estimation is proposed.Compared with existing maximum likelihood estimate procedure, the calculation of param-eter estimation in this method is simple.Further more,the proposed method can update the reliability assessment result with new degradation test data without any consideration of old data.So the method is also suitable for real time reliability assessment.An example,the reliability assessment of metallized filmcapacitor,is given to show the validity.Some discussions are made.and conclusion drawn.
