BS疲劳寿命分布序-恒试验的统计分析  

The Statistic Analysis of Progressive-Constant Stress Accelerated Life Test of BS Fatigue Life Distribution

作　　者：徐晓岭 王蓉华[2] 顾蓓青 XU Xiaoling;WANG Ronghua;GU Beiqing(School of Statistics and Information,Shanghai University of International Business and Economics,Shanghai 201620,China;Mathematics and Science College,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]上海对外经贸大学统计与信息学院,上海201620 [2]上海师范大学数理学院,上海200234

出　　处：《电子产品可靠性与环境试验》2021年第4期1-5,共5页Electronic Product Reliability and Environmental Testing

基　　金：国家自然科学基金项目--Birnbaum-Saunders疲劳寿命分布的统计分析(11671264);上海师范大学2021年国家自然科学基金培育计划项目--加速寿命试验若干问题研究(309-AC7001-21-003040)资助。

摘　　要：研究了Birnbaum-Saunders疲劳寿命分布产品在序进-恒定应力下加速寿命试验的可靠性统计分析。在刻度参数满足逆幂律模型下,得到了BS疲劳寿命分布产品在序进-恒定应力加速寿命试验下的失效分布,并在此基础上得到了参数的极大似然估计,最后通过Monte-Carlo算例说明了该方法的可行性。The reliability statistical analysis is studied for the products of Birnbaum-Saunders fatigue life distribution under progressive-constant stress accelerated life test.When the scale parameter satisfies inverse power law model,the failure distribution and maximum likelihood estimations of parameters are obtained for the products of BS fatigue life distribution under progressive-constant stress accelerated life test.Finally,the Monte-Carlo example shows the feasibility of the method is verified through the Monte-Carlo example.

关 键 词：两参数Birnbaum-Saunders疲劳寿命分布 序进-恒定应力加速寿命试验 逆幂律模型 刻度参数 极大似然估计 

分 类 号：TB114.3[理学—概率论与数理统计]