摘要
阐述了加速等效试验技术的基本原理和方法。研究了采用过载系数控制加速随机振动试验的实现手段。给出了过载系数上限的经验确定方法和试验时间等效换算法。针对疲劳寿命服从两参数威布尔或对数正态分布的情况 ,提出了两种适用于小样本、零失效的可靠性评估方法
The basic theory and method of accelerated mission life test are presented. Accelerated random vibration test by overload factor controlling is studied.At the same time, the problem of maximum overload factor is discussed and mission time computing is acquired. When fatigue life follows two parameter Weibull distribution or lognormal distribution, fatigue life scatter factor method and minimum reliability method are proposed for evaluating component reliability with small samples and zero failure.
出处
《机械科学与技术》
CSCD
北大核心
2004年第7期876-878,882,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
国防预先研究基金项目资助
关键词
加速等效试验
过载系数
小子样
零失效
可靠性评估
Accelerated mission test
Overload factor
Small samples
Zero-failure
Reliability evaluation
