摘要
本文提出了拟纯概率法思想 ,并建立了等效威布尔分布法。由于威布尔分布可呈现多种分布形态 ,因而能克服目前在机械可靠性分析中常用的等效正态分布法的局限性 。
A new reliability analysis method is presented which is called quasi pure probabilistic method(QPPM).On the basis of the present method,equivalent Weibull distribution method(EWM)is established for the reliability analysis of machine elements.Weibull distribution can express different distribution forms,so it is a more suitable method to describe random parameters with different distribution forms in mechanical reliability analysis.The calculation accuracy of the EWM is higher than that of the equivalent normal distribution mehtod(ENM)in reliability prediction.The present method is intelligible in concept,convenient in use,and has more important significance for reliability prediction of mechanical products with higher reliability requirements.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1992年第1期35-38,共4页
Journal of Aerospace Power
基金
航空科学基金资助
