J. Phys. IV France
Volume 115, June 2004
Page(s) 317 - 322

J. Phys. IV France
115 (2004) 317
DOI: 10.1051/jp4:2004115037

Modal approach to evaluate passive and active damping of sandwich viscoelastic and piezoelectric beams

L. Duigou, E.M. Daya and M. Potier-Ferry

ISGMP, Laboratoire de Physique et Mécanique des Matériaux, UMR CNRS 7554, Ile de Saulcy, 57045 Metz Cedex 01, France

In this paper, a modal approach is developed to estimate damping properties (i.e. loss factor and frequency per vibration mode) of sandwich beams with viscoelastic and/or piezoelectric layers. This method uses the classical laminate beam theory and a linear approximation of the electric potential through the thickness. Two control laws are considered. So, it appears that the piezoelectric material can yield an efficient solution to damp vibration modes.

© EDP Sciences 2004