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Proceedings Paper

Active/passive piezoelectric vibration suppression
Author(s): Gregory S. Agnes
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Paper Abstract

The use of piezoelectric materials simultaneously as passive modal devices and active elements to suppress structural vibrations is discussed. A simple modal model is developed which predicts the behavior. Experimental studies are then conducted to verify the model. The results show a reduction of 20 dB in the second mode of the structure is possible via passive shunting while simultaneously commanding the piezo-actuator. The results indicate that for vibration problems involving a few modes, piezoelectric devices combining active and passive techniques can significantly reduce the broadband structural response to disturbances.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2193, Smart Structures and Materials 1994: Passive Damping, (1 May 1994); doi: 10.1117/12.174112
Show Author Affiliations
Gregory S. Agnes, Air Force Wright Lab. (United States)

Published in SPIE Proceedings Vol. 2193:
Smart Structures and Materials 1994: Passive Damping
Conor D. Johnson, Editor(s)

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