摘要
在逐步增加的Ⅱ型截尾寿命试验场合下,研究两参数Birnbaum-Saunders(简称BS)疲劳寿命分布产品的可靠性统计分析似然函数,运用泰勒展开得到了近似似然方程,通过求解仅含刻度参数的超越方程得到形状参数的近似极大似然估计;最后通过Monte-Carlo模拟算例说明方法的可行性。
The reliability statistical analysis method of two parameters Birnbaum-Saunders （BS） fatigue life distribution products is studied under progressive type-II censored life test. The likelihood function is given, and the approximate likelihood equation is obtained by Taylor expansion. By solving the transcendental equation with only scale parameter, we get approximate maximum likelihood estimation of shape parameter. Finally, the examples illustrated the feasibility of the method by Monte-Carlo simulations.
出处
《兵器装备工程学报》
CAS
2017年第9期156-160,共5页
Journal of Ordnance Equipment Engineering
基金
2017年上海市大学生创新创业训练计划项目(102732017093)
国家自然科学基金资助项目(11671264)
