Reliability Analysis of Metro Door System Based on FMECA

Xiaoqing Cheng, Zongyi Xing, Yong Qin, Yuan Zhang, Shaohuang Pang, Jun Xia

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School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China.
State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China.

DOI: 10.4236/jilsa.2013.54024                

Abstract

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.

Keywords

Reliability; Sliding Plug Door; FMECA; Criticality

Conflicts of Interest

The authors declare no conflicts of interest.

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