车辆的振动从振动源或波形的性质来看,可分为下述四种:第一是发动机和驱动装置等所造成的,与转速成正比的振动;第二是在车站车辆进行连挂作业所造成的冲击或列车在错车时的风压所造成的振动;第三是轨道接头、道床结构和不规则形状的轨道不平整所造成的振动;第四是自激振动,即蛇行运动。在列车实现高速化和提高安全度的情况下,后两种振动是非常重要的。为此,要进行在轨道上的走行试验,对振动判断的结果、车辆设计的方针或包括轨道在内的维护 Vibrations from the vibration source or waveform of the vehicle’s nature can be divided into the following four: the first is caused by the engine and drive, etc., and the speed is proportional to the vibration; the second is linked to the station vehicle operations The shock caused by the train or the car at the wrong car wind pressure caused by the vibration; third rail joints, ballast bed structure and irregular shape of the track caused by uneven vibration; fourth self-excited vibration, that is, snake-like motion. The latter two vibrations are very important in the case of high-speed trains and increased safety. To this end, to carry out walking test in orbit, the results of the vibration judgments, vehicle design guidelines or maintenance, including the track