基于FMECA的地铁门系统可靠性分析

Xiaoqing Cheng, Z. Xing, Yong Qin, Y. Zhang, Shaohuang Pang, J. Xia
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引用次数: 16

摘要

地铁车门系统是地铁列车故障率较高的子系统之一。本文采用失效模式、影响和临界分析(FMECA)方法对地铁门系统进行可靠性分析。首先对门的失效成分进行统计分析,确定主要失效成分;其次,根据故障对运行的影响程度对故障进行分类,并给出了失效模式临界度及相关系数的计算方法;最后,对选取的12种失效模式进行了详细的FMECA分析,发现这些失效模式对地铁门系统的影响最为显著。所得结果可用于地铁门系统的优化设计和维护。
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Reliability Analysis of Metro Door System Based on FMECA
The metro door system is one of the high failure rate subsystems of metro trains. The Failure Mode, Effects and Criticality Analysis (FMECA) method is applied to analyze the reliability of metro door system in this paper. Firstly, failure components of the door are statistically analyzed, and the major failure components are determined. Secondly, failures are classified according to their impacts on operation, and methods of calculating failure mode criticality and the related coefficients are illustrated. Finally, the FMECA is detailed in the selected 12 failure modes, and the failure modes are discovered that they have the most significant effect on metro door system. The obtained results can be used for optimal design and maintenance of the metro door system.
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