机械制造与自动化Issue(3)：187-190,4.
基于比例风险模型的地铁车门可靠性评估方法研究
Assessment Method of Metro Door Fault Criticality Based on Proportional Hazard Model
何广坚 1任金宝 2邢宗义2
作者信息
- 1. 广州市地下铁道总公司，广东 广州510030
- 2. 南京理工大学，江苏 南京210094
- 折叠
摘要
Abstract
The reliability of Metro Door is directly related to the safety of passengers. The proportional hazard model ( PHM) is pro-posed to evaluate metro door fault criticality. the proportional hazard model is introduced to the description of the relations between reliability and covariates. relevant historical failure data of metro door system, is sifted to obtain the function of the covariates of the model. the log-likelihood function is used to estimate the parameters in the PHM and the Newton-Raphson method is applied to cal-culating the parameters from the likelihood function. the reliability model is applied to evaluating the lifetime of the metro door. when R is 0.95, the reliable lifetime t0.95 is 170. Compared with the Weibul distribution, the PHM is more adaptive and robust and the impact of many covariates is considered simultaneously.关键词
车门可靠性/比例风险模型/似然估计/牛顿迭代Key words
metro door reliability/proportional hazard model/likelihood function/newton-raphson分类
交通工程引用本文复制引用
何广坚,任金宝,邢宗义..基于比例风险模型的地铁车门可靠性评估方法研究[J].机械制造与自动化,2015,(3):187-190,4.
