Sound radiation from a plate immersed in water near the free surface

Kha, J; Karimi, M; Maxit, L; Skvortsov, A; Kirby, R

Sound radiation from a plate immersed in water near the free surface

Kha, J Karimi, M

Maxit, L Skvortsov, A Kirby, R

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Publication Type:: Conference Proceeding
Citation:: Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021, 2021, pp. 39-40
Issue Date:: 2021-01-01

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Field	Value	Language
dc.contributor.author	Kha, J
dc.contributor.author	Karimi, M https://orcid.org/0000-0002-2949-5364
dc.contributor.author	Maxit, L
dc.contributor.author	Skvortsov, A
dc.contributor.author	Kirby, R https://orcid.org/0000-0002-3520-1377
dc.date.accessioned	2022-06-02T22:53:34Z
dc.date.available	2022-06-02T22:53:34Z
dc.date.issued	2021-01-01
dc.identifier.citation	Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021, 2021, pp. 39-40
dc.identifier.isbn	9781713844266
dc.identifier.uri	http://hdl.handle.net/10453/157887
dc.description.abstract	The results on the acoustic response of a heavy fluid-loaded baffled plate excited by a harmonic point force are presented. The displacements of the fluid-loaded plate are decomposed on the basis of the in-vacuo plate modes and the radiated acousic waves are determined solving the Helmholtz equation in a fluid. The Green's function for the acoustic waveguide domain formed by the baffled plate and the free surface is modelled by the source-image method. Predictions for the radiated sound power from the plate and pressure spectra are calculated for varying depths of the free surface and compared against results from an unbounded domain to infer the effect of the free surface on the acoustic response of the plate. The proposed analytical model is verified by comparison with finite element simulations.
dc.language	en
dc.relation.ispartof	Annual Conference of the Australian Acoustical Society 2021: Making Waves, AAS 2021
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Sound radiation from a plate immersed in water near the free surface
dc.type	Conference Proceeding
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	*
dc.date.updated	2022-06-02T22:53:33Z
pubs.publication-status	Published

Abstract:

The results on the acoustic response of a heavy fluid-loaded baffled plate excited by a harmonic point force are presented. The displacements of the fluid-loaded plate are decomposed on the basis of the in-vacuo plate modes and the radiated acousic waves are determined solving the Helmholtz equation in a fluid. The Green's function for the acoustic waveguide domain formed by the baffled plate and the free surface is modelled by the source-image method. Predictions for the radiated sound power from the plate and pressure spectra are calculated for varying depths of the free surface and compared against results from an unbounded domain to infer the effect of the free surface on the acoustic response of the plate. The proposed analytical model is verified by comparison with finite element simulations.

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http://hdl.handle.net/10453/157887