The use of magnetostrictive particle actuators for vibration attenuation of flexible beams

Krishna Murty, AV and Anjanappa, M and Wu, YF (1997) The use of magnetostrictive particle actuators for vibration attenuation of flexible beams. In: Journal of Sound and Vibration, 206 (2). pp. 133-149.

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Abstract

A laminated composite beam, representative of a flexible beam, containing a layer of magnetostrictive material, is considered as a distributed parameter system and its dynamic behavior has been investigated. The magnetostrictive layer is used to induce actuation forces to control vibration in the beam, following a velocity feedback control law. The dynamic behavior of the beam is studied to illustrate the effect of the lay!up sequence, the weight of the coil, the control gain and the concentrated mass on the vibration suppression capability. Numerical results have been given for three different lay- up sequences of the laminates, representing a wide range of stiffness variation. The controllability of the first four modes, the corresponding coil current and the stresses have also been discussed. The results clearly indicate viability of developing a smart flexible beam with embedded magnetostrictive particle layers.

Item Type:	Journal Article
Publication:	Journal of Sound and Vibration
Publisher:	Academic Press Limited
Additional Information:	Copyright of this article belongs to Academic Press Limited.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	23 Jun 2007
Last Modified:	19 Sep 2010 04:36
URI:	http://eprints.iisc.ac.in/id/eprint/10144

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