Reciprocity and the active control of distributed acoustic sources (L)
Reciprocity and the active control of distributed acoustic sources (L)
The velocity distributions of a pair of arbitrary acoustic sources are approximated by arrays of elementary sources, and a reciprocal relationship is established between the generalized force on one source and the total velocity of the other source. When the two distributed sources are individually constrained to vibrate with a single phase and are used for active sound control, it is shown that the attenuation in sound power from the pair of sources is the same regardless of whether one source velocity is fixed and the velocity of the other source is adjusted to minimize the power output, or vice versa.
52-54
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rees, Lewis
8db237ba-9fc1-44ed-9ac7-79ebd9d4ad97
2003
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rees, Lewis
8db237ba-9fc1-44ed-9ac7-79ebd9d4ad97
Elliott, Stephen J. and Rees, Lewis
(2003)
Reciprocity and the active control of distributed acoustic sources (L).
Journal of the Acoustical Society of America, 114 (1), .
(doi:10.1121/1.1577559).
Abstract
The velocity distributions of a pair of arbitrary acoustic sources are approximated by arrays of elementary sources, and a reciprocal relationship is established between the generalized force on one source and the total velocity of the other source. When the two distributed sources are individually constrained to vibrate with a single phase and are used for active sound control, it is shown that the attenuation in sound power from the pair of sources is the same regardless of whether one source velocity is fixed and the velocity of the other source is adjusted to minimize the power output, or vice versa.
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Published date: 2003
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Local EPrints ID: 10959
URI: http://eprints.soton.ac.uk/id/eprint/10959
ISSN: 0001-4966
PURE UUID: 5edff960-df59-4a9d-85db-0e299a4a856f
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Date deposited: 03 Feb 2006
Last modified: 15 Mar 2024 05:01
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Author:
Lewis Rees
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