基于FMEA法-贝叶斯网络的受电弓可靠性评估

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文章编号：1002-7602（2025）02-0087-07

关键词：地铁车辆；受电引系统；FMEA法；贝叶斯网络；运营维护中图分类号： U264.3+4 文献标志码：B doi：10.20213/j.cnki. tdcl. 2025.02.011

Abstract：The pantograph system of subway vehicles is the key equipment for receiving current from the high-voltage contact network，and its reliability is directly related to the safety of the train，the rateof honoring the operation plan，the quality of passenger service，and other key elements. Its installation on the roof determines the particularmaintenance characteristics of the equipment.To effectively improve the eficiency and reduce maintenance costs，the article establishes a general modelof the impact hierarchy，applies the potential Failure Mode and Effect Analysis （FMEA） method to gradually refine the damage factors of the system reliability.The FMEA method and Bayesian network are combined to study the reliability of the pantograph system and find out the weak links of the pantograph. Post-probability arithmetic is applied to derive the probability of equipment failure，which provides a reference for the operation and maintenance of pantographs in subway vehicles.

Key words： subway vehicle； pantograph system； FMEA method; Bayesian network； operation andmaintenance

1概述

目前，国内地铁单位对设备管理的方法较多，有以改进DeepLabV3 + 和引入卷积块注意力模块的YOLOv5网络等[1-2]算法进行故障预测，也有以可靠性为中心维修（ReliabilityCenteredMaintenance，RCM策略开展研究，为做好设备预防性维修需求，优化维修制度，关注重点依旧在预防性的定期维修上面，而受电弓安装在车顶，生产作业条件严格，维修效率往往很低。（剩余6024字）