Dynamic damping property of magnetorheological elastomer

来源期刊:中南大学学报(英文版)2008年增刊第1期

论文作者:李剑锋 龚兴龙

文章页码:261 - 265

Key words:magnetorheological elastomer; dynamic damping; friction

Abstract: Magnetorheological elastomer (MRE) is a new kind of smart materials, its dynamic mechanic performances can be controlled by an applied magnetic field. MRE is usually used as a stiffness-changeable spring in the semi-active vibration absorber. In order to get perfect vibration control effect, low dynamic damping of MRE is need. But the dynamic damping of MRE was not studied deeply in the past. The dynamic damping of MRE was studied and analyzed. The influences of different test conditions including test strain amplitude, test frequency and test magnetic field were deeply studied. MRE sample and pure silicone rubber sample were prepared and tested under different conditions. The test results show that the main source of dynamic damping is the friction between iron particles and rubber matrix. And the friction is mainly influenced by the strain amplitude and test magnetic field.

基金信息:the National Natural Science Foundation of China
the Specialized Research Fund for the Doctoral Program of Higher Education of China

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