At present,the formulation of urban rail equipment maintenance cycle is subjective and it overly relies on maintenance guidance manuals,maintenance experience and so on.Based on this,a reliability based regular maintenance method of urban rail equipment is proposed in this paper.A reliability assessment model considering the external environment impact is constructed to accurately describe the reliability trend of urban rail equipment.In addition,a regular maintenance model based on the minimization of maintenance cost is constructed to optimize the regular maintenance cycle.This paper uses the actual fault data of a metro escalator equipment for analysis.The result shows that the reliability assessment model considering the external environmental impact has a smaller sum of squares error,and it can accurately express the impact of external temperature and humidity on operating state of the escalator equipment.Moreover,the proposed regular maintenance model can save the maintenance cost of the escalator equipment by about 4 220 RMB Yuan and reduce the maintenance cost by about 11.72％within 730 days.The research result of this paper can provide a reference for the maintenance of urban rail equipment.
国家科技期刊平台
NSTL
万方数据
