Free Vibration Analysis of Viscoelastic and Magnetorheological Elastomer Composite Sandwich Beam Under Various Boundary Conditions
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Abstract
Vibration analysis of three-layer symmetrical sandwich beams with a viscoelastic and magnetorheological elastomer (MRE) core and conductive aluminum skins subjected to magnetic or non-magnetic field intensity was carried out under various boundary conditions. A numerical simulation of the bending vibration behavior of these beams using the Abaqus calculation code was carried out. The simulation results show that the absorption capacity of the developed magnetorheological elastomer is better than that of the viscoelastic material. The loss factor and shear modulus were found to be strongly influenced by the application of a magnetic field. The results demonstrated that the natural frequencies of the beam having a magnetorheological elastomer core can be tuned and adjusted intelligently.
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