In this study, two magnetorheological elastomers (MRE) were fabricated: the mixing ratios of carbonyl iron, silicon oil and silicone rubber are 7∶1∶2 and 7∶1.5∶1.5, respectively. And two MRE sandwich beams were also fabricated by treating MRE between two thin aluminum layers. The experiment test rig was set up to investigate the vibration response of MRE cantilever sandwich beams under nonhomogeneous magnetic field, and different magnetic field intensity was adjusted by changing the distance between the permanent magnets. The experiment results show that the first natural frequency of the MRE cantilever sandwich beam gets decreased either when the magnets is moved away from the clamped end to the free end of beam or the external applied magnetic field gets increased at specific activated region. It is also observed the MRE sandwich beam with higher proportion of silicon oil has better vibration suppress ability.
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胡国良,龚美慧,江 敏,李丙丙.非均匀磁场作用下磁流变弹性体悬臂夹层梁振动响应实验分析[J].机床与液压,2017,45(6):7-12. . Experimental analysis of vibration response of MRE cantilever sandwich beam under non-homogeneous magnetic field[J]. Machine Tool & Hydraulics,2017,45(6):7-12