Active noise cancellation of a spherical multipole source using a radially vibrating spherical baffled piston
Active noise cancellation of a spherical multipole source using a radially vibrating spherical baffled piston
The creation of quiet zones in a diffuse sound field due to a multipole spherical primary source by means of a radially vibrating surface set in the side of a rigid sphere (secondary source) is investigated in this article. The formulation utilizes the appropriate wave field expansions along with the translational addition theorems for spherical wave functions to develop a closed-form solution in the form of an infinite series. The numerical results reveal that using a baffled spherical piston model as a secondary source instead of a monopole control source will obviously improve the sound minimization efficiency of such noise-control systems in all cases, especially for a dipolar primary source.
609-618
Azarpeyvand, M.
05191a9a-040a-45d2-a5d7-d4044b4c60ba
2005
Azarpeyvand, M.
05191a9a-040a-45d2-a5d7-d4044b4c60ba
Azarpeyvand, M.
(2005)
Active noise cancellation of a spherical multipole source using a radially vibrating spherical baffled piston.
Acoustical Physics, 51 (6), .
(doi:10.1134/1.2130891).
Abstract
The creation of quiet zones in a diffuse sound field due to a multipole spherical primary source by means of a radially vibrating surface set in the side of a rigid sphere (secondary source) is investigated in this article. The formulation utilizes the appropriate wave field expansions along with the translational addition theorems for spherical wave functions to develop a closed-form solution in the form of an infinite series. The numerical results reveal that using a baffled spherical piston model as a secondary source instead of a monopole control source will obviously improve the sound minimization efficiency of such noise-control systems in all cases, especially for a dipolar primary source.
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Published date: 2005
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Local EPrints ID: 28452
URI: http://eprints.soton.ac.uk/id/eprint/28452
PURE UUID: 767abd15-05ae-4bf7-98f9-6b09aa8eb5e6
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Date deposited: 02 May 2006
Last modified: 15 Mar 2024 07:25
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Author:
M. Azarpeyvand
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