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TECHNICAL PAPERS

Multivariable Transfer Functions for a Slewing Piezoelectric Laminate Beam

[+] Author and Article Information
H. R. Pota

Department of Electrical Engineering, Australian Defence Force Academy, Campbell ACT 2600, Australia

T. E. Alberts

Department of Aerospace Engineering, Old Dominion University, Norfolk, VA 23529-0247

J. Dyn. Sys., Meas., Control 117(3), 352-359 (Sep 01, 1995) (8 pages) doi:10.1115/1.2799126 History: Received June 17, 1992; Revised April 20, 1994; Online December 03, 2007

Abstract

In this paper a distributed parameter model of a slewing beam system with piezoelectric actuators and sensors is considered. The system has a torque motor at a pinned (proximal) end, an endpoint motion sensor at the distal end, and patches of thin piezoelectric laminates attached to its surface. The partial differential equation of motion for this system is transformed to Laplace domain transfer functions after application of the appropriate boundary conditions. Transfer functions relating the various actuator/sensor pairs are developed. The results are shown to reduce to previously known results which are special cases of the system under consideration. Examples and experimental results are presented using a beam experiment at the US Air Force, Frank J. Seller Research Laboratory.

Copyright © 1995 by The American Society of Mechanical Engineers
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