面向对象的磁流变液阻尼器设计及减振效果研究  

Design and damping characteristics testing of magneto-rheological fluid damper for special object

作　　者：张松慧[1] 张旭 

机构地区：[1]中国计量学院机电学院,杭州310018 [2]浙江省低压电器省级区域科技创新服务中心,乐清325604

出　　处：《机械设计与制造》2010年第7期41-43,共3页Machinery Design & Manufacture

摘　　要：针对某小型钢框架结构的振动特性,基于非牛顿粘性流体模型,由磁流变液的物理性质,建立了磁流变液阻尼器的剪切应力模型,描述了磁流变液阻尼器的非线性特性,得到了磁流变液阻尼器的设计参数;利用制得的磁流变液阻尼器,对该结构进行了振动测试研究,结果表明,在使用制得的磁流变液阻尼器后,框架结构的第一阶振动幅度与不加磁流变液阻尼器相比,减小了42%,而且整个过程较为平稳,验证设计的磁流变液阻尼器的阻尼效果,为磁流变液阻尼器的设计提供了理论和实验依据。Aiming at the vibration characteristics of a small type steel frame,based on the theory of non-Newton liquid,from the physical property of the magneto-rheological fluids （MRF）,the shear stress model of MRF damper is built up and non-linear characteristics of MR damper is described,the parameter of damper is obtained;by the developed MRF damper,the vibration characteristics of the frame structure is studied,the results show：after fixing the MRF damper,the vibration response of the frame structure is decreased by 42% for the first mode,which validate the damping effect of the developed MRF damper,and provide the theorical and experimental proof for the design of the MRF damper.

关 键 词：磁流变液 阻尼性能 振动控制 

分 类 号：TH16[机械工程—机械制造及自动化] TB126[理学—工程力学]