基于FMECA法的城市轨道交通车辆故障重要度分析

王旭岩1樊茜琪2

Fault Importance Analysis of Urban Rail Transit Vehicle Based on FMECA Method

WANG XuyanFAN Qianqi
摘要:
运用FMECA(故障模式影响及危害性分析)法对城市轨道交通车辆故障重要度进行分析,定量计算车辆各故障模式的重要度,识别关键故障影响,为制定科学有效的车辆各系统维修大纲提供支撑。运用该方法对长春轻轨车辆的转向架系统和制动系统的故障进行分析。结果表明:转向架系统中,重要度排前三的故障模式为支架出现裂纹、高度阀出现卡簧松脱或球阀卡滞、抗侧滚扭力臂出现关节脱出或裂纹超标;制动系统中,重要度排前三的故障模式为撒沙系统故障、制动单元故障、制动夹钳故障。因此,在制定车辆日常维修大纲时需重点关注重要度排前三的故障模式。
Abstracts:
The importance of urban rail vehicle fault is analyzed with FMECA (failure mode, effects and criticality analysis) method, through quantitative calculation of the importance of each vehicle fault mode, the impact of critical faults is recognized, which provides support to develop scientific and effective maintenance outline for vehicle systems. The method is applied to analyze the light rail vehicle bogie and braking system faults in Changchun City, and the results show that the top three important faults of the bogie system are the stent crack in bracket, the caliper looseness or ball valve stuck in the height valve, the disengagement or standard-exceeding cracks in anti\|roll torsion arm. While the top three important faults of the braking system are sanding system failure, brake unit failure and brake clamp failure. Therefore, the top three important fault modes should be concerned with emphasized attention in the development of daily maintenance outline.
引文 / Ref:
王旭岩,樊茜琪.基于FMECA法的城市轨道交通车辆故障重要度分析[J].城市轨道交通研究,2020,23(7):121.
WANG Xuyan,FAN Qianqi.Fault Importance Analysis of Urban Rail Transit Vehicle Based on FMECA Method[J].Urban mass transit,2020,23(7):121.
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