Active sound radiation control with secondary sources at the edge of the opening

Wang, S; Yu, J; Qiu, X; Pawelczyk, M; Shaid, A; Wang, L

Active sound radiation control with secondary sources at the edge of the opening

Wang, S Yu, J Qiu, X

Pawelczyk, M Shaid, A Wang, L

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Publication Type:: Journal Article
Citation:: Applied Acoustics, 2017, 117 pp. 173 - 179
Issue Date:: 2017-02-01

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Field	Value	Language
dc.contributor.author	Wang, S	en_US
dc.contributor.author	Yu, J	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Pawelczyk, M	en_US
dc.contributor.author	Shaid, A	en_US
dc.contributor.author	Wang, L	en_US
dc.date.available	2020-05-25T19:05:41Z
dc.date.issued	2017-02-01	en_US
dc.identifier.citation	Applied Acoustics, 2017, 117 pp. 173 - 179	en_US
dc.identifier.issn	0003-682X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/111729
dc.description.abstract	© 2016 Elsevier Ltd Planar virtual sound barriers with secondary sources over the entire opening have been demonstrated an effective way to achieve global control of sound transmission through the opening, but loudspeakers in the middle of the opening affect ventilation, lighting and normal access through it. To avoid the problem, this technical note proposes to implement secondary sources at the edge of a cavity opening and investigates the active sound reduction performance of the system numerically and experimentally. Unlike secondary sources over the entire opening which can achieve sound reduction at any frequency as long as there are sufficient of them, there exists an upper bound of effective frequency for global control when secondary sources are at the edge of the opening; however, local control is always achievable. Preliminary experiments were conducted on an open wooden box and a semi-closed meeting room to support the conclusions.	en_US
dc.relation	http://purl.org/au-research/grants/arc/LP140100740
dc.relation.ispartof	Applied Acoustics	en_US
dc.relation.isbasedon	10.1016/j.apacoust.2016.10.027	en_US
dc.subject.classification	Acoustics	en_US
dc.title	Active sound radiation control with secondary sources at the edge of the opening	en_US
dc.type	Journal Article
utslib.citation.volume	117	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	117	en_US

Abstract:

© 2016 Elsevier Ltd Planar virtual sound barriers with secondary sources over the entire opening have been demonstrated an effective way to achieve global control of sound transmission through the opening, but loudspeakers in the middle of the opening affect ventilation, lighting and normal access through it. To avoid the problem, this technical note proposes to implement secondary sources at the edge of a cavity opening and investigates the active sound reduction performance of the system numerically and experimentally. Unlike secondary sources over the entire opening which can achieve sound reduction at any frequency as long as there are sufficient of them, there exists an upper bound of effective frequency for global control when secondary sources are at the edge of the opening; however, local control is always achievable. Preliminary experiments were conducted on an open wooden box and a semi-closed meeting room to support the conclusions.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/111729