An integral equation method for calculating sound field diffracted by a rigid barrier on an impedance ground.

Zhao, S; Qiu, X; Cheng, J

An integral equation method for calculating sound field diffracted by a rigid barrier on an impedance ground.

Zhao, S

Qiu, X

Cheng, J

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Publisher:: ACOUSTICAL SOC AMER AMER INST PHYSICS
Publication Type:: Journal Article
Citation:: J Acoust Soc Am, 2015, 138, (3), pp. 1608-1613
Issue Date:: 2015-09

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Field	Value	Language
dc.contributor.author	Zhao, S https://orcid.org/0000-0002-6261-8864
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220
dc.contributor.author	Cheng, J
dc.date.accessioned	2023-03-30T05:29:43Z
dc.date.available	2023-03-30T05:29:43Z
dc.date.issued	2015-09
dc.identifier.citation	J Acoust Soc Am, 2015, 138, (3), pp. 1608-1613
dc.identifier.issn	0001-4966
dc.identifier.issn	1520-8524
dc.identifier.uri	http://hdl.handle.net/10453/168846
dc.description.abstract	This paper proposes a different method for calculating a sound field diffracted by a rigid barrier based on the integral equation method, where a virtual boundary is assumed above the rigid barrier to divide the whole space into two subspaces. Based on the Kirchhoff-Helmholtz equation, the sound field in each subspace is determined with the source inside and the boundary conditions on the surface, and then the diffracted sound field is obtained by using the continuation conditions on the virtual boundary. Simulations are carried out to verify the feasibility of the proposed method. Compared to the MacDonald method and other existing methods, the proposed method is a rigorous solution for whole space and is also much easier to understand.
dc.format	Print
dc.language	eng
dc.publisher	ACOUSTICAL SOC AMER AMER INST PHYSICS
dc.relation.ispartof	J Acoust Soc Am
dc.relation.isbasedon	10.1121/1.4929933
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Acoustics
dc.title	An integral equation method for calculating sound field diffracted by a rigid barrier on an impedance ground.
dc.type	Journal Article
utslib.citation.volume	138
utslib.location.activity	United States
utslib.for	091301 Acoustics and Noise Control (excl. Architectural Acoustics)
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	*
dc.date.updated	2023-03-30T05:29:42Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	138
utslib.citation.issue	3

Abstract:

This paper proposes a different method for calculating a sound field diffracted by a rigid barrier based on the integral equation method, where a virtual boundary is assumed above the rigid barrier to divide the whole space into two subspaces. Based on the Kirchhoff-Helmholtz equation, the sound field in each subspace is determined with the source inside and the boundary conditions on the surface, and then the diffracted sound field is obtained by using the continuation conditions on the virtual boundary. Simulations are carried out to verify the feasibility of the proposed method. Compared to the MacDonald method and other existing methods, the proposed method is a rigorous solution for whole space and is also much easier to understand.

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http://hdl.handle.net/10453/168846