Performance of a multichannel active sound radiation control system near a reflecting surface

Tao, J; Wang, S; Qiu, X; Pan, J

Performance of a multichannel active sound radiation control system near a reflecting surface

Tao, J Wang, S Qiu, X

Pan, J

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Publication Type:: Journal Article
Citation:: Applied Acoustics, 2017, 123 pp. 1 - 8
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Tao, J	en_US
dc.contributor.author	Wang, S	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Pan, J	en_US
dc.date.available	2020-05-25T19:03:04Z
dc.date.issued	2017-08-01	en_US
dc.identifier.citation	Applied Acoustics, 2017, 123 pp. 1 - 8	en_US
dc.identifier.issn	0003-682X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/124847
dc.description.abstract	© 2017 Elsevier Ltd Prior research shows that introducing a reflecting surface near an active control system can improve its noise reduction performance; however the mechanism of the performance improvement is not completely clear. This paper investigates the effects of a reflecting surface on multichannel active sound radiation control systems with a primary monopole source located on the surface. By using a genetic searching algorithm, the locations of secondary sources were optimized to maximize the noise reduction and the frequency range that can be beneficial from the reflecting surface is discussed. It is found that the performance improvement by introducing a reflecting surface is due to the increased sound pressure generated by the secondary sources at the primary source location. The beneficial frequency range extends with the number of the channels of the control system and has an upper limit frequency determined by the distance between the secondary sources and the primary source. Experiments are conducted to validate the results.	en_US
dc.relation.ispartof	Applied Acoustics	en_US
dc.relation.isbasedon	10.1016/j.apacoust.2017.02.020	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Acoustics	en_US
dc.title	Performance of a multichannel active sound radiation control system near a reflecting surface	en_US
dc.type	Journal Article
utslib.citation.volume	123	en_US
utslib.for	0203 Classical Physics	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	1201 Architecture	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	123	en_US

Abstract:

© 2017 Elsevier Ltd Prior research shows that introducing a reflecting surface near an active control system can improve its noise reduction performance; however the mechanism of the performance improvement is not completely clear. This paper investigates the effects of a reflecting surface on multichannel active sound radiation control systems with a primary monopole source located on the surface. By using a genetic searching algorithm, the locations of secondary sources were optimized to maximize the noise reduction and the frequency range that can be beneficial from the reflecting surface is discussed. It is found that the performance improvement by introducing a reflecting surface is due to the increased sound pressure generated by the secondary sources at the primary source location. The beneficial frequency range extends with the number of the channels of the control system and has an upper limit frequency determined by the distance between the secondary sources and the primary source. Experiments are conducted to validate the results.

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http://hdl.handle.net/10453/124847