中文摘要：

为提高城际交通车辆的平顺性,将永磁体引入普通磁流变阻尼器,对其悬架进行研究。首先,根据城际交通车辆的工况特点,考虑减小阻尼器调控电流等因素,对阻尼器的磁路进行设计、计算永磁体尺寸参数,在此基础上,建立该悬架数学模型与仿真模型;然后,分别以高速公路工况和城市道路工况进行仿真;最后搭建1/4悬架试验台,进行台架试验。仿真与台架试验结果表明,所设计的悬架系统可以提高汽车的平顺性,其调控电流普通磁流变阻尼器有所减小。

英文摘要：

To enhance the ride comfort of intercity vehicles,permanent magnets are introduced into ordinary magneto-rheological（ MR） damper and the corresponding suspension is studied. Firstly,based on the traffic conditions of intercity vehicles and taking reducing regulating current of MR damper into consideration,the magnetic circuit of damper is designed and the dimensional parameters of permanent magnets are calculated. On this basis,the mathematical and simulation models for suspension are built. Then,simulations with both expressway and city road conditions are carried out respectively. Finally,a quarter suspension test rig is constructed with bench tests conducted. The results of simulations and bench tests indicate that the designed suspension system with permanent magnet MR damper can improve the ride comfort of vehicle with a smaller regulating current compared with ordinary MR damper.