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压气机叶片的应力分布与很多因素有关 ,它往往很难用一解析式表达。模糊可靠性分析以有限元分析程序为“抽样工具” ,得到叶片应力与其相关因素的一系列抽样值 ,并利用模糊线性回归方法得到了叶片应力的模糊回归方程。基于模糊应力—随机强度干涉模型 ,求得了压气机叶片的模糊可靠度 ,给出了实例。
Compressor blade stress distribution and many factors, it is often difficult to use an analytical expression. Fuzzy Reliability Analysis A finite element analysis program was used as a “sampling tool” to obtain a series of sampling values of leaf stress and its related factors. The fuzzy regression equation of leaf stress was obtained by fuzzy linear regression. Based on the fuzzy stress - random intensity interference model, the fuzzy reliability of the compressor blade is obtained and an example is given.