| Numéro |
J. Phys. IV France
Volume 115, June 2004
|
|
|---|---|---|
| Page(s) | 317 - 322 | |
| DOI | https://doi.org/10.1051/jp4:2004115037 | |
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-FerryISGMP, Laboratoire de Physique et Mécanique des Matériaux, UMR CNRS 7554, Ile de Saulcy, 57045 Metz Cedex 01, France
Abstract
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