Forced transverse vibration of composite sandwich beam with magnetorheological elastomer core |
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Authors: | Salah Aguib Abdelkader Nour Toufik Djedid Georges Bossis Nourddine Chikh |
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Affiliation: | 1. Dynamic of Engines and Vibroacoustic Laboratory, M’Hamed Bougara University of Boumerdes, Boumerdes, Algeria 2. Laboratory of Condensed Matter Physics, University of Nice-Sophia Antipolis, CNRS, UMR 7336, 28 avenue Joseph Vallot, 06100, Nice, France
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Abstract: | 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, and second to a harmonic excitation by magnetic force applied at the free end. Our main objective was to predict the effect of the intensity of the current flowing through a coil on several dynamic factors. The maximum amplitude of resonance and the variation of the loss factor as a function of structural stiffness are adjusted simultaneously by the application of different magnetic fields. The results of both methods are compared. |
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