线路不平顺对低速磁浮车辆动态响应的影响

线路不平顺与磁浮车辆的动力学性能密切相关,良好的线路状况是车辆稳定、舒适运行的保证。参考各国高速铁路对轨道梁刚度的要求,并考虑轨道梁的动力学特性要求,给出了磁浮列车线路不平顺的具体型式及变量限值,着重分析了线路不平顺的频率对车辆垂向响应的影响。分析结果进一步验证了悬浮控制器的设计思想,即在高频时,应保证列车具有良好的平稳性,而低频时,应与轨道具有良好的跟随性。这些分析结果为以后进一步的研究奠定了基础。

Influence of Track Irregularity to the Low-speed Maglev Vehicle Dynamic Response

Track irregularity has an important relation with the dynamics performance of the Low- speed maglev vehicle, good track state ensures that the vehicles inn stably and comfortably.This paper refers to the requirements of railway girder stiffness of various countries, and considers its dynamics characteristic, produced the form of the track irregularity and also the variable bound. Emphatically analyzed the influence of track irregularity to the vertical response, the analysis result has further confirmed the design thought of the levitation controller, that is, when in high frequency, the levitation controller should guarantee that the train has the good stability, while in low frequency, it should have good follows with the track. These analysis results have laid an important foundation for the later further research.