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RESEARCH PAPERS

Distributed Photostrictive Actuation and Opto-Piezothermoelasticity Applied to Vibration Control of Plates

[+] Author and Article Information
B. Liu

Department of Power, Beijing University of Aeronautics and Astronautics, Beijing, 100083, P.R. China

H. S. Tzou

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

J. Vib. Acoust 120(4), 937-943 (Oct 01, 1998) (7 pages) doi:10.1115/1.2893923 History: Received February 01, 1996; Revised November 01, 1997; Online February 26, 2008

Abstract

Conventional hard-wired sensor/actuator systems are likely sensitive to strong electromagnetic fields, cross-talks, electric noises, etc. Noncontact distributed opto-electromechanical actuators driven by high-energy lights do not require direct hardwire connections. These opto-electromechanical actuators can operate in hostile and extreme environments with strong magnetic and/or electric disturbances. In this study, detailed photostriction, pyroelectricity, thermoelasticity and photodeformation of 2-D opto-electromechanical photostrictive actuators are analyzed. A servo control system is proposed and its governing system equation is derived. The opto-electromechanical actuators are used in vibration control of a rectangular plate. Experimentally calibrated simulation results show that the opto-electromechanical actuators are effective in vibration control and the highest frequency of controllable vibration can achieve several hundred Hertz.

Copyright © 1998 by The American Society of Mechanical Engineers
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