中低速磁浮车辆悬浮故障工况动力学分析

Dynamic Analysis of Suspension Fault Condition for Medium-Low Speed Maglev Vehicle

为研究中低速磁浮车辆电磁铁失效失去悬浮力时的故障工况对磁浮车辆动力学性能的影响,建立三悬浮架中低速磁浮车辆动力学模型,对直线运行和曲线通过性能的各项动态指标进行仿真分析。结果表明:电磁铁失效故障对平稳性指标和导向间隙影响较小,对悬浮间隙、悬浮模块点头角和通过速度影响较大;发生电磁铁失效故障时,直线路段需要限速60 km/h运行,R100曲线路段需要限速38 km/h运行。

To study the fault condition of medium-low speed maglev vehicle in its electromagnet failure and suspension force loss and the influence on its vehicle dynamic performance,a dynamic model of medium-low speed maglev vehicle with three suspension frames was established,and the dynamic indexes of linear operation and curve passing performance were simulated and analyzed.The results show that electromagnet failure has little influence on stability index and guide clearance,but grealy affects suspension clearance,suspension module nod angle and passing speed.When electromagnet fails,vehicle speed should be limited at 60 km/h in the straight section and 38 km/h in the R 100 curve section.