Simulation on dynamics of electrorheological elastomer sandwich beams
Vibration response and controllability of a cantilever electrorheological (ER) elastomer sandwich beam subjected to different electric field are simulation investigated in the study. Considering ER elastomer as viscoelastic damping materials with electrically controllable properties, based on Hamilton principle a finite element model of a sandwich beam with an ER e-lastomer core is developed to predict vibration responses of the ER elastomer sandwich beam. The results show that natural frequencies of the ER elastomer sandwich beam increase and vibration amplitudes at natural frequencies of the sandwich beam decrease, as the strength of applied electric field increases. It is demonstrated that the vibration characteristics of the ER elastomer beam is similar as that of ER fluids beam, which could be real-time controlled by changing the strength of applied electric field.
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万方数据
维普
