A preliminary study on the performance of indoor active noise barriers based on 2D simulations

Huang, X; Zou, H; Qiu, X

A preliminary study on the performance of indoor active noise barriers based on 2D simulations

Huang, X Zou, H Qiu, X

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Publication Type:: Journal Article
Citation:: Building and Environment, 2015, 94 pp. 891 - 899
Issue Date:: 2015-12-01

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Field	Value	Language
dc.contributor.author	Huang, X	en_US
dc.contributor.author	Zou, H	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.date.issued	2015-12-01	en_US
dc.identifier.citation	Building and Environment, 2015, 94 pp. 891 - 899	en_US
dc.identifier.issn	0360-1323	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129889
dc.description.abstract	© 2015 Elsevier Ltd. Single screen barriers are widely used in open-plan offices as a means of improving acoustical privacy. However, the insertion loss of an indoor barrier is limited in low frequency range. Active control systems have been shown to be able to enhance the insertion loss of outdoors noise barrier in low frequency range, so its feasibility for improving the performance of indoor barriers is investigated in this paper. The simulation results show that about 10 dB extra insertion loss below 500 Hz can be obtained with the active control system when the squared sound pressure inside the entire observation area is minimized. The performance of the active noise barrier deteriorated significantly due to the reflecting ceiling, and the performance is hardly improved by increasing the ceiling height or the ceiling absorption coefficient. Finally, the effects of the sensing strategy on the control performance and the impacts of the active control system on the source side are discussed.	en_US
dc.relation.ispartof	Building and Environment	en_US
dc.relation.isbasedon	10.1016/j.buildenv.2015.06.034	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Building & Construction	en_US
dc.title	A preliminary study on the performance of indoor active noise barriers based on 2D simulations	en_US
dc.type	Journal Article
utslib.citation.volume	94	en_US
utslib.for	1201 Architecture	en_US
utslib.for	1202 Building	en_US
utslib.for	0502 Environmental Science and Management	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	94	en_US

Abstract:

© 2015 Elsevier Ltd. Single screen barriers are widely used in open-plan offices as a means of improving acoustical privacy. However, the insertion loss of an indoor barrier is limited in low frequency range. Active control systems have been shown to be able to enhance the insertion loss of outdoors noise barrier in low frequency range, so its feasibility for improving the performance of indoor barriers is investigated in this paper. The simulation results show that about 10 dB extra insertion loss below 500 Hz can be obtained with the active control system when the squared sound pressure inside the entire observation area is minimized. The performance of the active noise barrier deteriorated significantly due to the reflecting ceiling, and the performance is hardly improved by increasing the ceiling height or the ceiling absorption coefficient. Finally, the effects of the sensing strategy on the control performance and the impacts of the active control system on the source side are discussed.

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http://hdl.handle.net/10453/129889