模糊约束条件隶属函数的一种确定方法及其应用

Method for determining the membership function of fuzzy restriction condition and its application

提出了一种模糊约束条件隶属函数的确定原理 ,并以应力为随机变量、强度为模糊变量的典型组合给出了具体确定方法 ,进而解决了该情况下模糊可靠度的计算问题。其原理与方法 ,同样适用于研究模糊概率优化设计和模糊稳健设计中其它模糊约束条件满足的模糊概率问题。

In this paper, the principle for determining the membership function of fuzzy restriction condition was put forward. The method for determining the membership function with typical combinations of random variables and fuzzy variables was presented in details, then the problem to calculate the fuzzy reliability directly in these combinations has been solved. The method used in the paper is also applied to research the fuzzy probability of other type of fuzzy restriction conditions in fuzzy probability optimal design and fuzzy robust optimal design.