Modeling and Feedback Structural Acoustics Control of a Flexible Plate

[+] Author and Article Information
Kazuto Seto

Department of Mechanical Engineering, Nihon University, 1-8 Kanda Surugadai, Chiyodo-ku, Tokyo 101, Japan

Mingzhang Ren, Fumio Doi

Vibration Control Laboratory, Kyowa Metal Works Co., Ltd., Fukuura 1-1-1, Kanazawa-ku, Yokohama 236, Japan

J. Vib. Acoust 123(1), 18-23 (Feb 01, 2000) (6 pages) doi:10.1115/1.1285987 History: Received June 01, 1997; Revised February 01, 2000
Copyright © 2001 by ASME
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Modal shapes illustrated by node lines. The circles and numbers refer to modeling points. (The peculiar ordering of the modeling points has no meaning and can be numbered in other ways.)  
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The lumped parameter model for the plate structure. The masses (mi) are connected through springs (k).
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The measured frequency response functions in the impulse excitation experiments. (a) Excite near mass point 2 and pick up at mass point 1 (b) excite near mass point 1 and pick up at mass point 1.
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The measured sound pressure of the plate under the stationary excitation by a loudspeaker




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