Abstract
Magnetic-rheological elastomer is a smart material that can change its shear modulus. This study suggested magneto-rheological elastomer (MRE)-based dynamic vibration absorber (DVA). The MRE-based DVA can change its stiffness instantly by controlling the magnetic field. To control the magnetic field, a magnetic flux generator was designed using electromagnetic finite element method analysis and the response surface method. Moreover, the shear modulus of MREs was evaluated by being applied to DVA, and the mass of the MRE-based DVA was calculated. Finally, a variable dynamic vibration absorber was manufactured to reduce the vibration according to changes in the magnetic field. The variable performance of the MRE-based DVA was conducted using current control.
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