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Proceedings Paper

Feasibility study on using shunted piezoelectrics to reduce aeroelastic response
Author(s): Anna-Maria Rivas McGowan
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Paper Abstract

Several analytical and experimental studies clearly demonstrate that piezoelectric materials can be used as actuators to actively control vibratory response, including aeroelastic response. However, two important issues in using piezoelectrics as actuators for active control are: 1) the potentially large amount of power required to operate the actuators, and 2) the complexities involved with active control. Active or passive damping augmentation using shunted piezoelectrics may provide a viable alternative. This approach requires only simple electrical circuitry and very little or no electrical power. The current study examines the feasibility of using shunted piezoelectrics to reduce aeroelastic response using a typical-section representation of a wing and piezoelectrics shunted with a parallel resistor and inductor. The aeroelastic analysis shows that shunted piezoelectrics can effectively reduce aeroelastic response below flutter and may provide a simple, low-power method of subcritical aeroelastic control.

Paper Details

Date Published: 9 July 1999
PDF: 18 pages
Proc. SPIE 3674, Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies, (9 July 1999); doi: 10.1117/12.351555
Show Author Affiliations
Anna-Maria Rivas McGowan, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 3674:
Smart Structures and Materials 1999: Industrial and Commercial Applications of Smart Structures Technologies
Jack H. Jacobs, Editor(s)

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