车用磁流变减振器的研制  

DEVELOPMENT OF MAGNETORHEOLOGICAL DAMPER FOR VEHICLE

作　　者：曹民[1] 喻凡[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《机械工程学报》2004年第3期186-190,共5页Journal of Mechanical Engineering

摘　　要：针对车用磁流变减振器现存的阻尼特性不理想、油封易磨损泄漏、磁流变液静置沉降以及磁路结构不尽合理等主要问题,提出了加装单向滑阀、组合密封器、静置稳定装置和多级磁路式电磁活塞等改进措施。以Passat B5轿车前悬架减振器作为设计对象,对磁流变减振器的电磁磁路和液压结构进行了改进设计,最后通过各项性能试验得到了较为满意的结果,表明了双筒滑阀式磁流变减振器的可行性和有效性。Focusing on the problems of magnetorheological (MR) damper for vehicle, in the wear and leakage of oil-seal, the sedimentation of MR fluid and magnetic circuit structure, the improvement measures correspondingly by installing a mono-direction slide valve, a guiding and sealing device, an anti-sedimentation device, and an electromagnetic piston with multi-stage magnetic circuit structure are put forward in a new prototype design. Taking the front damper of Passat B5 car as example, the electromagnetic circuit and hydraulic structure of the MR damper are improved and designed. The prototype experiments are carried out. The damping characteristics of the prototype are analyzed and compared with those of the original passive damper. The results show the feasibility and validity of MR damper with twin tubes and slide valve.

关 键 词：磁流变减振器 车辆 半主动悬架 研制 电磁磁路 液压结构 

分 类 号：U463.335.1[机械工程—车辆工程]