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DISTRIBUTED SENSOR/ACTUATOR DESIGN FOR PLATES: SPATIAL SHAPE AND SHADING AS DESIGN PARAMETERS

This paper will discuss two-dimensional 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-weightin...

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Bibliographic Details
Published in:Journal of sound and vibration 1997-06, Vol.203 (3), p.473-493
Main Authors: Sullivan, J.M., Hubbard, Jr, J.E., Burke, S.E.
Format: Article
Language:English
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Summary:This paper will discuss two-dimensional 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.
ISSN:0022-460X
1095-8568
DOI:10.1006/jsvi.1996.0877