基于应力-强度干涉理论的接触网零部件可靠性计算  

Reliability calculation of catenary parts based on the stress-strength theory

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

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]铁道第一勘察设计院,陕西西安710000

出　　处：《机械研究与应用》2008年第2期83-85,共3页Mechanical Research & Application

摘　　要：随着高速电气化铁路的发展,接触网零部件的可靠性要求也越来越高。笔者在分析外载及零部件应力后,通过样条插值和极大似然等方法估算分布参数,以应力-强度的干涉模型得出各零部件可靠度,为估计接触网的工作能力状态或寿命提供了参考。The reliability request of catenary system parts becomes higher with the development of high - speed electrified railway. After analyzing the external loads and the stress of parts, we can calculate the distribution parameters through the methods of spline interpolation and maximum likelihood. And we can get the the reliability on catenary system parts based on the stress - strength model. This method provides a reference for the catenary system to estimate the ability to work.

关 键 词：接触网系统 可靠度 样条插值 极大似然 

分 类 号：TH161[机械工程—机械制造及自动化]