CAJ | 학술논문

在已有讨论竞争失效数据统计分析的文献中,大多数都假设失效机理之间相互独立.本文使用copula作为连接函数来考查加速寿命试验中的竞争失效模型.通过模拟,把失效机理相关时得到的结果与失效机理独立时得到的结果做了比较.最后分析了文献中的一个实际数据.
재이유토론경쟁실효수거통계분석적문헌중,대다수도가설실효궤리지간상호독립.본문사용copula작위련접함수래고사가속수명시험중적경쟁실효모형.통과모의,파실효궤리상관시득도적결과여실효궤리독립시득도적결과주료비교.최후분석료문헌중적일개실제수거.
Among those papers discussing statistical analysis of competing failure data,most of them assume independence for failure modes.In this paper we use copula as the dependence link function to assess competing risk models in accelerated life testing.We compare via simulation the results of lifetime when the failure modes are dependent with those when the failure modes are independent,and apply our approach to a real data set in the literature.