以KONI垂向油压减振器为例,建立了高速列车油压减振器正弦激励下的动力学模型,并运用纽马克-β法对模型的位移、加速度等动力学过程进行了数值仿真。结果表明减振器的下腔、上腔、贮油腔等效体积刚度以及等效阻尼系数对减振器的性能影响较大;减振器上连接部组件及活塞组件的加速度响应曲线中会出现周期性冲击。 Taking the KONI vertical hydraulic shock absorber as an example, the dynamic model of the hydraulic shock absorber for high-speed train under sinusoidal excitation was established and the numerical simulation of the dynamic process such as displacement and acceleration of the model was carried out by Newmark-β method . The results show that the equivalent volumetric stiffness of the lower cavity, the upper cavity and the oil storage cavity of the shock absorber and the equivalent damping coefficient have a great influence on the performance of the shock absorber. The acceleration response curve of the shock absorber connecting component and the piston component Cyclical shocks occur.