磁流变弹性体夹层梁的振动响应特性实验研究  

Experimental study on vibration response behavior of a beam with magnetorheological elastomers

作　　者：魏克湘[1,2] 孟光[2] 游红[1] 刘迎春[1] 

机构地区：[1]湖南工程学院机械工程系,湖南湘潭411101 [2]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《振动与冲击》2009年第10期81-83,共3页Journal of Vibration and Shock

基　　金：国家自然科学基金(10802029);湖南省自然科学基金(01JJY2157);中国博士后科学基金(20070410730)资助项目

摘　　要：设计和制备了基于磁流变弹性体材料的夹层结构梁,对所制备的磁流变弹性体夹层梁的振动响应特性进行了实验测试和分析。实验结果显示,在外加磁场作用下,磁流变弹性体夹层梁的振动响应幅值和固有频率将发生改变,具有减幅和移频特性。表明磁流变弹性体材料在磁场控制下,能改变夹层梁的振动响应特性,可实现对柔性梁的实时振动控制。A sandwich beam with Magnetorheological(MR) elastomers core was designed and fabricated.Experiment was carried out to investigate the vibration response bahavior of the sandwich beam.The results showed that its natural frequencies and response amplitude varied when a magnetic field was applied to the sandwich beam with MR elastomers.The vibration characteristics of the sandwich beam could be controlled by external magnetic field.

关 键 词：磁流变弹性体 夹层梁 振动特性 

分 类 号：O326[理学—一般力学与力学基础] TB535[理学—力学]