在建立铁道车辆柔刚体系统垂直动力学模型的基础上,应用独立模态空间控制理论和最优控制理论,对影响车辆垂直运行平稳性的车体低阶弯曲结构振动和浮沉、点头等刚体振动进行控制。根据铁道车辆悬挂系统的特点,提出采用磁流变阻尼器作为作动器,以降低车体垂直加速度进而改善运行平稳性为目标的半主动控制策略,来实现在性能改善和能量消耗之间的协调,在ADAMS和Matlab／Simulink~(?)环境下,应用机械系统和控制系统联合仿真技术,对采用半主动控制策略的整车性能进行仿真研究。仿真结果显示该半主动控制策略能较好地抑制车体第一阶弯曲模态的结构振动,并可改善车辆运行平稳性,针对铁道车辆系统的磁流变阻尼器在设计上是可行的。 On the basis of establishing the vertical dynamic model of railway rigid-body system and using the independent modal space control theory and the optimal control theory, the vibration of the low-order curved structure of vehicle body, Control. According to the characteristics of railway vehicle suspension system, a semi-active control strategy with magnetorheological damper as actuator to reduce the vertical acceleration of the vehicle body and improve the running stability is proposed to achieve the performance improvement and energy consumption In the environment of ADAMS and Matlab / Simulink ~ (?), The co-simulation technology of mechanical system and control system is applied to simulate the performance of vehicle with semi-active control strategy. The simulation results show that the semi-active control strategy can effectively suppress the structural vibration of the first-order bending mode of the vehicle body and improve the running stability of the vehicle. The MR damper designed for the railway vehicle system is feasible in design.