摘要
Bhattacharyya和Soejoeti(1980)对步进应力加速寿命试验提出损伤失效率模型(TFR模型).本文针对TFR模型,对两参数Weibull分布,在步进应力加速试验下给出了参数的近似极大似然估计和逆矩估计,并通过Montr-Carlo模拟考察了估计的精度,比较了各估计的优劣.
Bhattacharyya and Socjoeti (1989) proposed the tampered failure rate (TFR) model in a step-stress accelerated life test. This paper presents approximate maximum likelihood estimates and an inverse moment estimates of the parameters of the tampered failure rate model for the Weibull distribution, and examines the estimation accuracy and compares the strengths of the estimates.
出处
《数学研究》
CSCD
2003年第4期351-367,共17页
Journal of Mathematical Study
基金
This project was supported by NSF to China(10271079,69971016)
关键词
WEIBULL分布
损伤失效率模型
残存函数
近似极大似然估计
逆矩估计
Weibull distribution! tampered failure rate model
survival function
approximate maximum likelihood estimate
inverse moment estimate
