Based on the FMEA and risk assessment analysis method, authors proposed 25 kinds of failure modes about the door system of high-speed train, conducted a risk assessment from the risk grade and criticality. Four kinds of failure modes are obtained with the highest level of risk and criticality in the door system of high-speed train. They are control failure, communication failure, compensator failure and poor function. Four key components, affecting the door system safety of high-speed train, are identified in terms of door control unit, driving device, locking mechanism and platform compensator. Research outcomes can be used in analyzing the failure causes and specific solutions to reduce and avoid the high-speed train operation risk.

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This paper based on the basic theory of reliability- centered maintenance (RCM) combined with the characteristics of the high speed train products, analysed and elucidated the time and requirements, premise, the content and the output of the RCM analysis that the high-speed train products carry out; put forward the ideas of organization to implement the RCM analysis, which has a great realistic significance on the RCM analysis.