Vibration performances of MRE embedded sandwich beam: Experimental study

Abstract

In this paper, magnetorheological elastomer (MRE) is fabricated with carbonyl iron particle mixed with silicon rubber as the matrix. Sandwiched beam is fabricated from the MRE sandwiched between two aluminum layers. Forced vibrations of the MRE cored sandwiched beam have been studied. An experimental set up is fabricated to investigate the vibration responses of MRE cored sandwich beam with and without magnetic field. The obtained experimental results reveal that the natural frequencies and damping ratios of the MRE cored sandwiched beams are significantly influenced by MRE and magnetic field. The stiffness and damping properties of the beam change due to the change in rheological properties of the MRE under the magnetic field.