多自由度减振磁流变阻尼器的设计研究  

Design and research of the multi-degree-of-freedom damping MR damper

作　　者：赵晓文 侯忠明 杜彦亭[2] 

机构地区：[1]总后建筑工程研究所,陕西西安710032 [2]西安交通大学机械工程学院,陕西西安710049

出　　处：《地震工程与工程振动》2011年第5期178-183,共6页Earthquake Engineering and Engineering Dynamics

摘　　要：针对磁流变阻尼器存在的磁流变液体沉淀、结构复杂、阻尼通道设计不尽合理等问题和工程应用中多自由度减振的实际需求,采用阻尼通道的锥形孔结构、平行圆盘缝隙式设计和分体式结构、实现磁流变阻尼器易安装、散热好、效率高和多自由度减振使用的目的。通过台架试验研究,分析了控制电流、激振频率和振幅对阻尼器阻尼特性的影响,结果表明所设计的磁流变阻尼器可控性能良好,能用于多自由度可控减振。Focusing on the problems of MR damper：sedimentation of MR fluid,complex structure,damping channel is not quite reasonable and the engineering application requirements for multi-degree-of-freedom damping vibration,a new MR damper was designed by split-type structure,taper bore and parallel disk gap structure of damping passage,it can be installed in level or arbitrary attitude in order to accommodate multi-degree-of-freedom vibration,and have merits of easy to install,dispel the heat well,higher efficiency and so on.The paper discusses the influence of control electric,exiting frequency and amplitude on characteristics of MR damper from the bench experiment data,the results show that the controllable performance of new magnetorheological damper is good,and it can be used for multi-degree-of-freedom controllable damping.

关 键 词：多自由度减振 分体式 锥形孔结构 平行圆盘缝隙结构 磁流变阻尼器 

分 类 号：TH122[机械工程—机械设计及理论]