Modeling of the electromechanical performance of piezoelectric laminated microactuators
- 1 March 1993
- journal article
- Published by IOP Publishing in Journal of Micromechanics and Microengineering
- Vol. 3 (1) , 18-23
- https://doi.org/10.1088/0960-1317/3/1/005
Abstract
Piezoelectric microactuators may be considered as multilayer laminated composites consisting of alternating layers of piezoelectric and non-piezoelectric materials. A generalized analytical formulation of mechanical deformations as a function of applied electric field is derived for an arbitrary lay-up of such laminates. Based on the generalized theory developed, specific formulae for the electromechanical performance of two cantilever microactuator lay-up geometries. including a single piezo/elastic laminate and a bimorph, are derived. In the modeling of the electromechanical performance of piezoelectric microactuators, the present model incorporates both d211 and d222. Furthermore, the elastic properties of both the piezoelectric and the elastic materials have been considered. The developed model is evaluated based on a comparison with results from experiment.Keywords
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