摘要
在产品寿命服从对数正态分布的场合下,讨论了循环序进应力加速寿命试验的模型,给出了相应的参数的两种统计分析方法:极大似然估计;极大似然估计与回归相结合的估计。
In this paper,we first discuss statistical model and data analysis under accelerated life testing by circular- progressive- stress when the life distribution follows log- normal distribution,then give two methods of estimation of parameters.
出处
《浙江海洋学院学报(自然科学版)》
CAS
2003年第3期254-258,264,共6页
Journal of Zhejiang Ocean University(Natural Science Edition)
关键词
对数正态分布
加速寿命试验
循环序进应力
极大似然估计
log- normal distribution
accelerated life testing
circular- progressive- stress
maximum likelihood estimation