基于FMECA的地铁车辆转向架检修计划优化研究

On the Optimization of Bogie Maintenance Scheduling for Metro Vehicles Based on FMECA

我国地铁车辆转向架以计划预防性检修为主。此检修方式能够基本满足转向架的运用要求,但易导致维修过剩和维修不足的问题。以我国某线地铁车辆转向架为例,基于对地铁车辆转向架的故障模式、影响和危害度分析(FMECA),提出了根据FMECA结果优化转向架检修计划的基本原则、内容和方法;对优化方案进行了分析,并提出了验证优化方案合理性的评价指标和基于随机完全区组设计的验证办法,为提高转向架检修计划的合理性提供了依据。

The main maintenance mode for Chinese metro bogies is a scheduled preventive maintenance, which basi- cally meets the requirements for operation but can be easily lead to excessive or inadequate maintenance. Combined with a practical example and based on the FMECA （failure mode effects and criticality analysis） result of a metro vehi- cle bogie, the basic optimizing principles, contents and ap- proach for the optimization of the maintenance scheduling are proposes, and the optimization result is analyzed. Eval- uation indicators for the rationality of the optimized main- tenance scheduling are proposed and validation of the ran- domized complete block design is confirmed. The method proposed in this paper can provide references to improve the rationality of metro bogie maintenance scheduling in practice.