线路参数对列车垂向振动特征影响的仿真分析

针对线路曲线过渡段与变坡点的距离、垂向轨道不平顺等参数对列车垂向振动的影响规律进行了研究.分析了线路过渡段和变坡点的距离对车辆垂向振动加速度的影响,以及左、右轨道短波不平顺存在差异等因素对车体垂向振动加速度的影响.提出了在线路设计中应合理考虑线路曲线过渡段与变坡点之间的距离,避免二者过于接近;控制轨道短波不平顺,有益于降低车体垂向加速度高频峰值.

Simulation Analysis of Influence of Route Parameters on Vertical Vibration Characteristic of Train

In this paper,the influences of route parameters on vertical vibration of train were researched.The effects of the distance between curved transition section and slope changing point and the track irregularity on vertical vibration acceleration were analyzed.A conclusion was achieved that the distance between curved transition section and slope changing point should be reasonably considered in circuit design to avoid the distance to short and the irregularity of track should be controlled to reduce the high frequency peak of the vehicle vertical acceleration.