基于RCM的某型动车组全自动车钩气动控制系统修程分析  

Analysis of Repair Class of Pneumatic Control System for Automatic Coupler of a Model of Multiple Unit Based on RCM

作　　者：刘元欣 宋元申 田宗睿 朱兴晨 LIU Yuanxin;SONG Yuanshen;TIAN Zongrui;ZHU Xingchen(CRRC Braking System Co.,Ltd.,Qingdao 266111,China)

机构地区：[1]中车制动系统有限公司,山东青岛266111

出　　处：《铁道车辆》2024年第6期170-174,共5页Rolling Stock

摘　　要：车钩作为车辆重要零部件,对于保障车辆安全运行具有重要意义。为保证车钩性能,需按修程开展检修维护。传统的车钩维修方式为计划修和故障修结合,存在成本高、效率低的缺点,并且可能存在过度修或维修不足等问题。文章以RCM(以可靠性为中心的维修)理论为基础,结合实际运营故障信息、FMECA分析,对某型动车组全自动车钩用气动控制系统的功能、故障模式、故障影响进行了分析,识别故障类别,结合车辆风险评估矩阵确定了相关零件的可靠性限度。同时对运营故障数据进行了梳理,选取了气动控制系统中的4种关键零件故障数据,采用威布尔分布函数构建可靠度模型,通过可靠性限度计算零件可靠性寿命。根据计算结果,进一步分析了气动控制系统零件可靠性寿命与现有修程要求匹配性,并结合动车组修程修制优化需要提出了合理化建议。As an important part of vehicle,coupler is significant for ensuring the safe operation of vehicle.To guarantee the performance of coupler,it’s necessary to perform the maintenance according to the repair class.The conventional coupler maintenance mode consists on combining the planned repair and the fault repair,with the shortages of high cost and low efficiency and the possible problems such as excessive repair or insufficient repair.The article is based on the RCM(Reliability-Centered Maintenance)theory,takes into account the actual operational fault information and the FMECA,analyzes the function,the mode of fault and the impact of fault of the pneumatic control system for automatic coupler of a model of multiple unit,identifies the type of fault and combines with the vehicle risk evaluation matrix to determine the reliability limit of relevant parts.Meanwhile,it classifies the operational fault data,selects the fault data of 4 key parts of the pneumatic control system,adopts the Weibull distribution function to build the reliability model and calculates the reliability life of the parts according to the reliability limit.Based on the calculation result,it further analyzes the matching of the reliability life of the parts of the pneumatic control system with the requirements of the existing repair class and,combining with the demand for optimization of repair class and repair system of the multiple unit,gives rationalization suggestions.

关 键 词：车钩 RCM 威布尔分布 可靠性寿命 修程 

分 类 号：U271.1[机械工程—车辆工程]