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Proceedings Paper

Distributed transducer design for plates: spatial shape and shading as design parameters
Author(s): Jeanne M. Sullivan; James E. Hubbard; Shawn Edward Burke
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Paper Abstract

This paper discusses 2-D distributed transducer shape and shading and their implications for the active control of plates. Two-dimensional transducer shaping is shown to be a useful design tool for the control problem. In addition, transducer shaping can be combined with gain-weighting to provide close approximation of continuously shaded transducer distributions. An optimization method is described which can be used to fit the approximation to a continuous distribution. The analysis is applied to two examples of transducers used to control a rectangular, simply supported plate. The first relies on shaping alone and is shown to spatially filter out the even-even modes. The second was developed using the optimization technique and is shown to provide `all-mode' controllability and observability.

Paper Details

Date Published: 1 May 1994
PDF: 13 pages
Proc. SPIE 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures, (1 May 1994); doi: 10.1117/12.174205
Show Author Affiliations
Jeanne M. Sullivan, Charles Stark Draper Lab., Inc. (United States)
James E. Hubbard, Optron Systems, Inc. (United States)
Shawn Edward Burke, Charles Stark Draper Lab., Inc. (United States)

Published in SPIE Proceedings Vol. 2192:
Smart Structures and Materials 1994: Mathematics and Control in Smart Structures
H. Thomas Banks, Editor(s)

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