Dynamic damping property of magnetorheological elastomer
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 strata amplitude and test magnetic field.
magnetorheological elastomer dynamic damping friction
LI Jian-feng(李剑锋) GONG Xing-long(龚兴龙)
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics,University of Science and Technology of China, Hefei 230027, China
国际会议
长沙
英文
261-265
2008-09-28（万方平台首次上网日期，不代表论文的发表时间）