轨道车辆走行部振动异常预警系统的技术方案研究

The Mechanical Fault Detection System for Rail Vehicles

讨论了对于轨道车辆走行部机械故障安全预警的技术研究的必要性。简要介绍了当今国内外对列车运行时发生的机械故障的监测及预警方面的发展情况和技术水平,分析了实现此安全系统所面临的技术难题。提出了从能量角度出发的机械故障识别方法,建立合理仿真模型进行计算分析。经过仿真和试验初步验证了通过能量传递来检测车辆系统结构变化,并进一步诊断列车运行中出现未知严重机械故障的可行性。

This paper demonstrates the on-board mechanical fault detection system of the rail vehicle,and briefly introduces the development of this system in the world.To implement this system,some technological difficulties must be resolved. This paper puts forward a conversation of energy-based method to identify the mechanical faults,and this method has been applied on the fault detection of a rail vehicle in simulation.