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Proceedings Paper

Smart large-area actuators
Author(s): Robert D. Corsaro; Brian H. Houston
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Paper Abstract

Local control of an acoustic projector or boundary can, in principal, be accomplished using large area locally controlled actuators with an imbedded or intimately bonded sensor array. However, in practice the marriage of an actuator and sensor array is not straightforward. Issues of area sampling, nearfield sensing, internal resonances, and both direct and extraneous coupling mechanisms all can contribute to complicate the system transfer functions and limit the applicability of this approach. In a basic research study, this paper considers the design and performance of a generic smart actuator for underwater acoustic applications. Both surface pressure and surface velocity sensing are included. Models are presented for understanding the importance of some of the mechanisms and construction issues involved, and for predicting the resulting system transfer functions. The predictions are compared with freefield experimental results.

Paper Details

Date Published: 22 May 1995
PDF: 9 pages
Proc. SPIE 2441, Smart Structures and Materials 1995: Smart Materials, (22 May 1995); doi: 10.1117/12.209812
Show Author Affiliations
Robert D. Corsaro, Naval Research Lab. (United States)
Brian H. Houston, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 2441:
Smart Structures and Materials 1995: Smart Materials
A. Peter Jardine, Editor(s)

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