机车车辆的横向振动随着列车运行速度的提高而加剧,这种横向振动带来了横向加速度及对线路侧向作用的增长。对于有正弦位移形式 Z=A Sin ωt 的振动,其横向加速度是由振动频率ω及振幅 A 来决定的。这种振动形式的横向加速度等于 j=Aω~2,其频率能够用摇头振动的波长 L_B 来表 The lateral vibration of rolling stock aggravates with the increase of the running speed of trains, which brings the lateral acceleration and lateral growth to the train. For a sinusoidal displacement form Z = A Sin ωt vibration, the lateral acceleration is determined by the vibration frequency ω and amplitude A. The lateral acceleration of this form of vibration is equal to j = Aω ~ 2, the frequency of which can be expressed by the wavelength L_B of the oscillating head vibration