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Proceedings Paper

Dynamic structural coupling behaviors of antisymmetric piezoelectric laminate
Author(s): HonLeung Kelvin Wong; ShiWei Ricky Lee
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Paper Abstract

A study on the dynamic structural coupling behaviors of a laminated composite beam with an embedded piezo-ceramic (PZT) layer is presented in this paper. The composite structure under investigation is a three-layer laminate with anti-symmetric configuration, which leads to an extension-twisting structural coupling. Due to this coupling effect, when an electric filed is applied to the PZT layer, the actuated in-plane deformation can result in torsional motion. During the course of this study, both experimental investigation and computational modeling were performed. The longitudinal and out-of-plane displacements of the laminate were measured by three optical sensors. An interesting phase shift among the applied voltage, the in-plane deformation, and the twisting angle was observed at the resonant frequency of the first torsional mode. Such behavior was also confirmed by computational modeling. Further investigations by harmonic analysis were performed as well in the present study. The results from computational analysis revealed more features of structural dynamics of the concerned anti-symmetric laminate.

Paper Details

Date Published: 21 August 2001
PDF: 9 pages
Proc. SPIE 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures, (21 August 2001); doi: 10.1117/12.436487
Show Author Affiliations
HonLeung Kelvin Wong, Hong Kong Univ. of Science and Technology (Hong Kong)
ShiWei Ricky Lee, Hong Kong Univ. of Science and Technology (Hong Kong)


Published in SPIE Proceedings Vol. 4326:
Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures
Vittal S. Rao, Editor(s)

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