元件强度可靠性的模糊概率计算模型

 首先建立了元件强度可靠性分析时基本变量只具有随机性而元件的安全失效状态含有模糊性时，元件的模糊失效概率Ｐｇｆ计算模型，也称广义概率计算模型，在此模型中给出了两种方法，即基本随机变量法和综合随机变量法；然后给出了基本随机变量具有随机模糊性时元件的Ｐｇｆ的计算模型，此模型中不论元件的安全失效状态是否具有模糊性，Ｐｇｆ均可以表示成条件概率

FUZZY PROBABILITY COMPUTATION MODEL FOR THE STRENGTH RELIABILITY OF COMPONENT

Based on the fuzzy random failure state and the safety state of the structure component, the first fuzzy probability computation model is set up, and the basic variables , i.e. the resistance R and the applied load S , are random ones in this model. Two different methods of this model, i.e. the basic variable one and the comprehensive variable one, are given out. The second fuzzy probability computation model is estabilshed on the fuzzy random basic variables, and whether the failure state of the component is treated as random or as fuzzy random, the fuzzy failure probability and the fuzzy reliability are both described as the conditional probabilities in the second model. The fuzzy probability computation model is also expressed as the general one in the paper.