基于动态故障树的轴控式列车制动系统的可靠性分析

摘要

列车轴控式制动系统是以列车单轴为基本单位的分布式系统，为提高系统的安全可靠性进行了单轴的冗余设计；以列车制动模型为单元，建立了轴控式制动系统和架控式制动系统动态故障树的可靠性分析模型，并对两者进行了定量分析，得到了轴控制动系统的可靠性优于架控式的结论，也为轴控式制动系统的进一步发展和改进提供了可靠的数学模型。%Train axel control braking system is a distributed system based on the single axis of the train. ln order to improve the safe-ty and reliability of the system, the redundant design of the single axis is put forward;taking train braking model as a unit, the relia-bility analysis models based on the dynamic fault tree for axle control braking system and vehicle control braking system are estab-lished. The quantitative analysis of the two models shows that axle control braking system is better than vehicle control braking sys-tem. This conclusion provides mathematical model for further improvement and development of the axle control braking system.