Aero-elasticity is a major concern in aerospace field. It resultes from the interaction between the air-stream and the structure. Wing flutter is a well known problem of the aero-elasticity. It which occurs when the two lowest system eigenvalues (plunge and pitch motion) coalesce at a certain air speed known as the flutter speed. The increasing use of active material induced-strain actuation such as piezoelectric materials in suppression of structural vibrations has seen its extension to wing flutter control. Higher flutter speed and hence, a wider operating envelope was achieved by delaying the coalescence of these two eigenvalues. This delaying is obtained by adding more strain energy to the system as a result of the activation of the piezoelectric actuators. This paper models a simple beam under nominal aerodynamic loading conditions for the determination of analytically-derived onset of flutter speeds. Also shown in this paper is the effect of orientation of actuated piezoelectric patches on the shift of the flutter speed.
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ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
October 28–30, 2008
Ellicott City, Maryland, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4331-4
PROCEEDINGS PAPER
Control of Structural Flutter Using Piezoelectric Patches
M. Hariri,
M. Hariri
RMIT University, Bundoora, VIC, Australia
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S. John,
S. John
RMIT University, Bundoora, VIC, Australia
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P. Trivailo
P. Trivailo
RMIT University, Bundoora, VIC, Australia
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M. Hariri
RMIT University, Bundoora, VIC, Australia
S. John
RMIT University, Bundoora, VIC, Australia
P. Trivailo
RMIT University, Bundoora, VIC, Australia
Paper No:
SMASIS2008-405, pp. 289-297; 9 pages
Published Online:
July 13, 2009
Citation
Hariri, M, John, S, & Trivailo, P. "Control of Structural Flutter Using Piezoelectric Patches." Proceedings of the ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1. Ellicott City, Maryland, USA. October 28–30, 2008. pp. 289-297. ASME. https://doi.org/10.1115/SMASIS2008-405
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