This paper is concerned with the problem of actively suppressing the acoustic radiation pressure generated by an orthotropic plate vibrating in air. The approach is to control the vibration of the modes of the plate most responsible for acoustic radiation pressure. This is accomplished by relating the far-field radiation pressure to the state of the plate. The control of the far-field radiation pressure is carried out by means of actuators placed on the elastic plate. A numerical example demonstrates the application of active control to suppress the far-field sound radiating from a simply-supported rectangular thin orthotropic plate subjected to a harmonic disturbance. The influence on the control effectiveness of various design parameters, such as the number of controlled modes, the choice of controlled modes, and the number of actuators, is investigated.
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October 1992
Research Papers
Control of Sound Radiating from an Orthotropic Plate Available to Purchase
L. Meirovitch,
L. Meirovitch
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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S. Thangjitham
S. Thangjitham
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
Search for other works by this author on:
L. Meirovitch
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
S. Thangjitham
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
J. Vib. Acoust. Oct 1992, 114(4): 531-539 (9 pages)
Published Online: October 1, 1992
Article history
Received:
January 1, 1991
Online:
June 17, 2008
Citation
Meirovitch, L., and Thangjitham, S. (October 1, 1992). "Control of Sound Radiating from an Orthotropic Plate." ASME. J. Vib. Acoust. October 1992; 114(4): 531–539. https://doi.org/10.1115/1.2930295
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