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Piezoelectric actuator models for active sound and vibration control of cylindersAnalytical models for piezoelectric actuators, adapted from flat plate concepts, are developed for noise and vibration control applications associated with vibrating circular cylinders. The loadings applied to the cylinder by the piezoelectric actuators for the bending and in-plane force models are approximated by line moment and line force distributions, respectively, acting on the perimeter of the actuator patch area. Coupling between the cylinder and interior acoustic cavity is examined by studying the modal spectra, particularly for the low-order cylinder modes that couple efficiently with the cavity at low frequencies. Within the scope of this study, the in-plane force model produced a more favorable distribution of low-order modes, necessary for efficient interior noise control, than did the bending model.
Document ID
19930061805
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lester, Harold C.
(NASA Langley Research Center Hampton, VA, United States)
Lefebvre, Sylvie
(Matra Saint-Quentin-en-Yvelines, France)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: Journal of Intelligent Material Systems and Structures
Volume: 4
Issue: 3
ISSN: 1045-389X
Subject Category
Mechanical Engineering
Accession Number
93A45802
Distribution Limits
Public
Copyright
Other

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