混合Ⅱ型截尾样本下简单步加试验的统计分析  

Statistical analysis of simple step-stress accelerated life testing for Type II hybrid censored sample

作　　者：覃晓琼[1] 康会光[2] 师义民[1] 胡俊梅[1] 

机构地区：[1]西北工业大学应用数学系,西安710072 [2]安阳师范学院数学系,河南安阳455000

出　　处：《计算机工程与应用》2008年第18期236-238,共3页Computer Engineering and Applications

基　　金：国家自然科学基金(the National Natural Science Foundation of China under Grant No.70471057);陕西省教育厅自然科学基金(No.03JK065)

摘　　要：将Bootstrap方法引入到加速寿命试验中,在产品寿命服从Rayleigh分布的情形下,研究混合Ⅱ型截尾简单步加试验的可靠性统计分析问题,获得了参数的极大似然估计和区间估计,给出了正常应力水平下可靠度、失效率、平均寿命等可靠性指标的估计方法,最后利用Monte-Carlo方法验证了结论的正确性和可行性。This paper introduces Bootstrap method to the statistical analysis of accelerated life testing.Based on type Ⅱ hybrid censored simple form step-stress accelerated life testing,the point and interval estimations of the parameters of Rayleigh distribution are obtained.Besides,the estimation of the failure rate,the reliability function and average life are given at normal stress level.In the end,some data simulation examples are given to illustrate validity of this method.

关 键 词：RAYLEIGH分布 混合Ⅱ型截尾 简单步加试验 参数估计 

分 类 号：O213.2[理学—概率论与数理统计]