作　　者： ; ; ; ; ;

机构地区： 西安交通大学建筑工程与力学学院

出　　处： 《机械科学与技术》 2004年第1期4-6,10,共4页

摘　　要： 研制了一种新型的磁流变阻尼器 ,进行了阻尼器的阻尼特性试验。在性能试验的基础上 ,提出了描述磁流变阻尼器阻尼特性的非线性滞回模型。采用磁流变阻尼器实现车辆悬架系统半主动控制 ,提出一种基于最优控制理论的半主动控制方案 ,给出了悬架系统在B级公路路面激励下控制数值仿真结果。结果表明基于最优控制理论的半主动控制磁流变阻尼器有明显的控制效果 ,可以有效地提高车辆的乘坐舒适性 ,具有良好的应用前景。 A new kind of magnetorheological(MR)damper,which can provide controllable damping forces with very little energy consumption,is designed and manufactured. Based on the MR damper damping characteristics experimentfor the MR damper,the nonlinear hysteresis property model to describe the performance of the MR damper is established.Afterwards,the MR damper is proposed to be used in semi-active control vehicle suspension system. A strategy based on optimal control theory is proposed and recommended. Road excitation of B level is utilized in numerical simulation. Numerical results presented here demonstrate that the strategy based on optimal control theory is very effective. Therefore,MRdamper is an idealsemi-active control device with great potential.

关 键 词： 磁流变阻尼器 磁流变液 半主动控制 车辆 悬架系统

领　　域： [一般工业技术] [机械工程] [机械工程]