基于FMEA法-贝叶斯网络的受电弓可靠性评估  

Reliability Assessment of Pantograph Based on FMEA Method-Bayesian Network

作　　者：江现昌 邹庆春 JIANG Xianchang;ZOU Qingchun(Operation Branch of Nanchang Rail Transit Co.,Ltd.,Nanchang 330200,China)

机构地区：[1]南昌地铁集团有限公司运营分公司,江西南昌330200

出　　处：《铁道车辆》2025年第2期87-93,共7页Rolling Stock

摘　　要：地铁车辆受电弓系统是从高压接触网受流的关键设备,设备运行的可靠性直接关乎行车安全、运行图兑现率、乘客服务质量等。而受电弓设备安装车顶决定了设备维护的特殊性,为有效提升效益,降低维修成本,文章通过对设备影响层次架构建立通用模型,运用潜在失效模式与后果分析(FMEA)方法逐步细化系统可靠性的破坏因子,将FMEA法与贝叶斯网络相结合研究受电弓系统可靠性,寻找出了受电弓的薄弱环节,运用后概率运算,得出了设备故障概率,为地铁车辆受电弓运维提供了参考。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 rate of honoring the operation plan,the quality of passenger service,and other key elements.Its installation on the roof determines the particular maintenance characteristics of the equipment.To effectively improve the efficiency and reduce maintenance costs,the article establishes a general model of 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.

关 键 词：地铁车辆 受电弓系统 FMEA法 贝叶斯网络 运营维护 

分 类 号：U264.34[机械工程—车辆工程]