Research on System Repair Strategy of Intercity EMU
The system repair strategy applicable to the intercity EMU is based on the RAMS theory,the combination of fixed and vari-able operation packages is adopted to realize the regular repair of the intercity EMU,the combination of state repair and fault repair is organically combined with the actual application of advanced repair to optimize the process and content,with low maintenance cost and high maintenance efficiency in the whole life cycle.Taking the FMECA analysis of the typical system of the intercity EMU as an exam-ple,the hazard degree of failure mode is introduced.Before and after the trial system repair strategy,the typical system fault mode haz-ard and business management assessment index are compared and analyzed.The analysis results show that the hazard degree of typical system failure of intercity EMU is significantly reduced,The operation and management assessment indicators have been significantly im-proved,the optimization and safety of advanced repair is good,and the setting of each round of advanced repair is balanced.
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