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TECHNICAL PAPERS

Vibration Control of Toroidal Shells With Parallel and Diagonal Piezoelectric Actuators

[+] Author and Article Information
H. S. Tzou, D. W. Wang

Department of Mechanical Engineering, Structronics Laboratory, University of Kentucky, Lexington, KY 40506-0503

J. Pressure Vessel Technol 125(2), 171-176 (May 05, 2003) (6 pages) doi:10.1115/1.1557635 History: Received December 14, 2001; Revised December 20, 2002; Online May 05, 2003
Copyright © 2003 by ASME
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References

Figures

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A toroidal shell panel and its coordinate system
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A laminated piezoelectric shell element
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The first three mode shapes of the toroidal shell panel (Case 1). (Note: “+” and “−” denote the convex and the concave, respectively.)
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The first four mode shapes of the toroidal shell panel (Case 2). (Note: “+” and “−” donate convex and concave, respectively.)
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Toroidal shell panel laminated with three parallel piezoelectric strips
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Toroidal shell panel laminated with diagonal piezoelectric strips
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Free displacement response of the toroidal panel
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Controlled response of the toroidal panel with parallel actuator (gain=5)
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Free displacement response of the toroidal panel
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Controlled response of the toroidal panel with diagonal actuator (gain=5)
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Inferred damping ratios at different gains of the two actuator configurations

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