Shaping the acoustic radiation of a vibrating plate

Wrona, S; Pawelczyk, M; Qiu, X

Shaping the acoustic radiation of a vibrating plate

Wrona, S Pawelczyk, M Qiu, X

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Publisher:: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Journal of Sound and Vibration, 2020, 476
Issue Date:: 2020-06-23

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Field	Value	Language
dc.contributor.author	Wrona, S
dc.contributor.author	Pawelczyk, M
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220
dc.date.accessioned	2021-03-15T04:31:41Z
dc.date.available	2021-03-15T04:31:41Z
dc.date.issued	2020-06-23
dc.identifier.citation	Journal of Sound and Vibration, 2020, 476
dc.identifier.issn	0022-460X
dc.identifier.issn	1095-8568
dc.identifier.uri	http://hdl.handle.net/10453/147159
dc.description.abstract	© 2020 Elsevier Ltd A new method is proposed for precise shaping of the acoustic radiation of a vibrating plate. The potential applications of this method are: to optimize acoustic radiation of a plate employed as a sound source; and to enhance transmission loss of a plate used as a noise barrier, both in passive or active control solutions. The proposed method is based on mounting several additional ribs and masses (passive elements) to the plate surface at locations determined by an optimization process. This optimization involves a model of the vibroacoustic system, a cost function representing the objective under consideration, and an optimization algorithm. The method is described, and results of both numerical simulation and experimental validation are presented. Analysis of results shows that the transmission loss introduced by a passive noise barrier can be enhanced by more than 7 dB in frequency bands of interest. Furthermore, these enhancements can be combined with optimized arrangements of actuators and sensors, resulting in a hybrid passive-active noise control system.
dc.language	English
dc.publisher	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.relation.ispartof	Journal of Sound and Vibration
dc.relation.isbasedon	10.1016/j.jsv.2020.115285
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 09 Engineering
dc.subject.classification	Acoustics
dc.title	Shaping the acoustic radiation of a vibrating plate
dc.type	Journal Article
utslib.citation.volume	476
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
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	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-15T04:31:37Z
pubs.publication-status	Published
pubs.volume	476

Abstract:

© 2020 Elsevier Ltd A new method is proposed for precise shaping of the acoustic radiation of a vibrating plate. The potential applications of this method are: to optimize acoustic radiation of a plate employed as a sound source; and to enhance transmission loss of a plate used as a noise barrier, both in passive or active control solutions. The proposed method is based on mounting several additional ribs and masses (passive elements) to the plate surface at locations determined by an optimization process. This optimization involves a model of the vibroacoustic system, a cost function representing the objective under consideration, and an optimization algorithm. The method is described, and results of both numerical simulation and experimental validation are presented. Analysis of results shows that the transmission loss introduced by a passive noise barrier can be enhanced by more than 7 dB in frequency bands of interest. Furthermore, these enhancements can be combined with optimized arrangements of actuators and sensors, resulting in a hybrid passive-active noise control system.

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http://hdl.handle.net/10453/147159