多孔泡沫金属磁流变液阻尼材料及其力学性能研究  

Mechanical properties of porous foam metal magnetorheological fluid damping materials

作　　者：刘旭辉[1] 付泽民[1] 

机构地区：[1]上海应用技术学院机械工程学院,上海201418

出　　处：《振动与冲击》2012年第7期63-65,共3页Journal of Vibration and Shock

基　　金：国家自然科学基金(51105256);上海市教育委员会重点学科建设项目(J51501);上海市联盟计划项目(LM201150);上海应用技术学院引进人才科研启动项目资助(YJ2011-05)

摘　　要：基于多孔泡沫金属的结构性能,研制一种新型的磁流变液阻尼材料,并搭建测试系统,研究其力学性能。在该材料中,磁流变液由于毛细管力的作用储存在多孔泡沫金属里面,在磁场作用下被抽出到剪切间隙内并产生磁流变效应;利用搭建的测试系统,研究多孔泡沫金属的材料、外加电流、剪切间隙和剪切应变率等参数对多孔泡沫金属磁流变液阻尼材料力学性能的影响,结果表明,设计的多孔泡沫金属磁流变液阻尼材料可产生明显的磁流变效应,在相同情况下,采用多孔泡沫金属铜时,多孔泡沫金属磁流变液阻尼材料具有最大的剪切转矩。Based on properties of porous foam metals, a typical MR fluid damping material was developed, and a set of test system was built to investigate the performance of the damping material. Here, MR fluid was stored in porous foam metals under action of capillary force and was drawn into shear gap when a magnetic field was on, and then produced MR effect. The effects of porous foam materials, current, shear gap and shear strain rate on the mechanical properties of the damping material were investigated, the results showed that the porous foam metals can produce damping effect, in the same conditions, the porous foam metal Cu can provide the largest shear torque. At last, the result was analyzed and explained with simulation and experiment.

关 键 词：多孔泡沫金属 简易磁流变液阻尼器 剪切转矩 可行性 

分 类 号：TB535.1[理学—物理] O482.54[理学—声学]