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Forced transverse vibration of composite sandwich beam with magnetorheological elastomer core
Salah Aguib,Abdelkader Nour,Toufik Djedid,Georges Bossis,Nourddine Chikh 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.1
We studied, experimentally and numerically, the vibrational response of a magnetorheological elastomer sandwich beam, clampedfree,delimited by two skins aluminum 7075T6, first subjected to a variable magnetic field perpendicular to the skin of the beam, andsecond to a harmonic excitation by magnetic force applied at the free end. Our main objective was to predict the effect of the intensity ofthe current flowing through a coil on several dynamic factors. The maximum amplitude of resonance and the variation of the loss factoras a function of structural stiffness are adjusted simultaneously by the application of different magnetic fields. The results of bothmethods are compared.