基于GO法的CRH3型动车组辅助供电系统可靠性分析

Reliability Analysis of Auxiliary Power System of CRH3 Electric Multiple Units based on GO Methodology

以CRH3型动车组为例,研究了GO法应用于动车组辅助供电系统可靠性分析的方法.分析了CRH3型动车组辅助供电系统工作原理,确定了操作符数据,建立了系统GO图,推导了信号流计算公式,完成了GO运算,得到了基于GO法的该系统可靠性分析结果.通过计算结果的对比,验证了GO法在动车组辅助供电系统可靠性分析和安全性评价中的可行性和有效性,为动车组辅助供电系统可靠性研究提供了一个便捷的新途径.

Taking CRH3 electric multiple units(EMUs)as an example,the way to analyze the reliability of its auxiliary power supply system(APSS)applying GO methodology is studied.The working principles of the APSS of the CRH3 EMUs are analyzed,and the operators corresponding to its parts are chosen.The GO model corresponding to the APSS of the CRH3 EMUs is established.The formulas to compute every signal flow reliability are deduced,and the GO calculation is completed.The system reliability is obtained based on the GO methodology.The comparison of computing results indicates that the GO methodology is feasible and effective to solve the reliability analysis and safety evaluation problems for an APSS of EMUs with convenience.