Prediction and Demonstration of Reliability for a Prototype High-Speed Train System

초록

This paper presents a procedure and an analysis method to evaluate reliability of a prototype high-speed train. As the first of reliability analysis, the rolling-stock system is divided into 6 sub-systems and each subsystem is classified into its own sub-assemblies. Functional analysis is conducted to draw function block diagrams (FBDs) for the sub-systems. Then a reliability evaluation model is constructed using reliability block diagrams (RBDs) and the associated mathematical model. Activities to increase reliability have been carried out throughout the test runs and analysis results show that the reliability of the rolling stock system is gradually growing in time. For reliability growth evaluation Duane method has been used as it is quick, simple and easy to understand. Also considered in this paper is the influence of various running tests to verify train performance on reliability of the train system so that we could obtain a reliability target of the prototype train which is comparable to that of the commercial train.