城轨车辆电子板件衰变检测及健康管理方式探索

Exploration on the Decay Detection and Prognostic and Health Management of Electronic Board for Urban Rail Vehicles

对城轨车辆电子板件维护现状进行分析,提出了基于数据驱动健康管理(PHM)的管理体系和方法运用,在前期开展过程中着重进行状态监测和数据收集,结合实际运用的方法进行整理和归纳。对电子板件元器件中使用范围广、故障率高的电解电容、薄膜电阻、MOSFET做了失效机理分析和寿命预测评估。利用数据驱动PHM方法,结合车辆制动系统电源板案例,阐述了该方式在实际中的运用,并取得了明显的降本、增效效果,具有良好的推广前景。

the current situation of electronic panel maintenance of urban rail vehicles was analyzed, the management system and method application based on data-driven health management(PHM) were put forward, condition monitoring and data collection in the early development process were focused on, the methods combined with practical application were sort out and summarized. The failure mechanism and life prediction of electrolytic capacitors, thin film resistors and MOSFET, which were widely used and have high failure rate, were analyzed. Using the data-driven PHM method, combined with the case of vehicle braking system power board, the application of the method in practice was expounded, and the effect of cost reduction and efficiency increase was obvious, which has a good promotion prospect.