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RESEARCH PAPERS

Nonlinear Piezothermoelasticity and Multi-Field Actuations, Part 2: Control of Nonlinear Deflection, Buckling and Dynamics

[+] Author and Article Information
H. S. Tzou

Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506-0108

Y. H. Zhou

Department of Mechanics, Lanzhou University, Lanzhou, China

J. Vib. Acoust 119(3), 382-389 (Jul 01, 1997) (8 pages) doi:10.1115/1.2889734 History: Received January 01, 1995; Online February 26, 2008

Abstract

Linear dynamics and distributed control of piezoelectric laminated continua have been intensively investigated in recent years. In this study, dynamics, electromechanical couplings, and control of thermal buckling of a nonlinear piezoelectric laminated circular plate with an initial large deformation are investigated. It is assumed that the transverse nonlinear component is much more prominent than the other two in-plane components—the von Karman type geometrical nonlinearity. In addition, the piezoelectric layers are uniformly distributed on the top and bottom surfaces of the circular plate. Accordingly, the control effect is introduced via an equivalent control moment on the circumference. Dynamic equations and boundary conditions including the elastic and piezoelectric couplings are formulated, and solutions are derived. Active control of plate’s nonlinear deflections, thermal buckling, and natural frequencies using high control voltages are studied, and their nonlinear effects are evaluated.

Copyright © 1997 by The American Society of Mechanical Engineers
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