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https://hdl.handle.net/2440/2784
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Type: | Journal article |
Title: | Near-field sensing strategies for the active control of the sound radiated from a plate |
Author: | Berry, A. Qiu, X. Hansen, C. |
Citation: | Journal of the Acoustical Society of America, 1999; 106(6):3394-3406 |
Publisher: | AMER INST PHYSICS |
Issue Date: | 1999 |
ISSN: | 0001-4966 1520-8524 |
Statement of Responsibility: | A. Berry, X. Qiu and C. H. Hansen |
Abstract: | <jats:p>When designing an active control system to globally control the far-field sound radiation from a vibrating surface, a challenging problem is to properly define the near-field acoustic sensing strategy and the type of cost function to be minimized by the controller. The strategy of sensing and minimizing the near-field active intensity at discrete locations in the active control of free field radiation from a vibrating plate is investigated in this paper. The optimal minimization of the sum of the near-field, normal active sound intensities at the error sensor locations using acoustic control sources is derived for this problem, and the results obtained are compared to the minimization of the sum of the near-field squared pressures. Some of the difficulties associated with sound intensity minimization are pointed out.</jats:p> |
Rights: | © 1999 Acoustical Society of America |
DOI: | 10.1121/1.428193 |
Published version: | http://dx.doi.org/10.1121/1.428193 |
Appears in Collections: | Aurora harvest 6 Environment Institute publications Mechanical Engineering publications |
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