城轨车辆悬挂系统特征参数试验研究

Test research on characteristic parameters of urban rail vehicle suspension system

为了分析城轨车辆悬挂系统的动态特性,文章对城轨车辆悬挂系统的固有频率和阻尼比参数进行了试验研究。采用楔块法激发车体和转向架的振动响应,获得车辆浮沉、点头及侧滚等不同运动状态下的悬挂系统固有频率及阻尼比。测试结果与仿真计算结果的一致性验证了该方法的可行性。

In order to analyze the dynamic characteristics of the suspension system for urban rail vehicles,this paper conducted experimental research on the natural frequency and damping ratio parameters of the urban rail vehicle suspension system.The wedge method is used to excite the vibration response of the car body and bogie,obtaining the natural frequencies and damping ratios of the suspension system under different motion states,such as bouncing,nodding,and rolling.The consistency between the test results and the simulation calculation results validates the feasibility of the test method.