基于模糊数学的接触网零部件可靠度计算模型  

Mathematic model of reliability calculation on the catenary components based on fuzzy mathematics

作　　者：罗松松[1] 田志军[2] 邓斌[1] 杨志军[1] 何巨东[1] 

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]铁道第一勘察设计院,西安710000

出　　处：《机械设计与制造》2008年第12期52-54,共3页Machinery Design & Manufacture

摘　　要：铁路接触网零部件的可靠性是铁路安全运行的重要因素,然而传统的可靠度计算模型不能很好的与实际相符。将模糊数学的理论应用于对接触网零部件可靠度计算上,建立了应力和强度均为正态分布、不同隶属函数下的模糊可靠度计算模型,为接触网零部件可靠度的计算提供了理论依据。通过抱箍类零件可靠度的计算,对比分析了模糊可靠度计算模型的正确性。Catenary componets＇reliability is an important factor of railway safety,but traditional re-liability calculation model can not be correspond with reality.Fuzzy mathematical theory is applied to reli-ability calculation of catenary componets.Mathematic model of fuzzy reliability calculation based on dif-ferent membership functions is established in which the stress and the strength are normal distribution.It provides a theoretical basis for reliability calculation of catenary componets.In the end,scientific method of the fuzzy reliability calculation model is analyzed by reliability calculation of clamp fittings.

关 键 词：接触网 模糊数学 模糊可靠度 隶属函数 

分 类 号：TH12[机械工程—机械设计及理论] O213.2[理学—概率论与数理统计]