Dynamic structural coupling behaviors of antisymmetric piezoelectric laminate

HonLeung Kelvin Wong; ShiWei Ricky Lee

doi:10.1117/12.436487

21 August 2001 Dynamic structural coupling behaviors of antisymmetric piezoelectric laminate

HonLeung Kelvin Wong, ShiWei Ricky Lee

Proceedings Volume 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures; (2001) https://doi.org/10.1117/12.436487
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

HonLeung Kelvin Wong and ShiWei Ricky Lee "Dynamic structural coupling behaviors of antisymmetric piezoelectric laminate", Proc. SPIE 4326, Smart Structures and Materials 2001: Modeling, Signal Processing, and Control in Smart Structures, (21 August 2001); https://doi.org/10.1117/12.436487

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