Normal modes of a small gamelan gong

Perrin, R; Elford, DP; Chalmers, L; Swallowe, GM; Moore, TR; Hamdan, S; Halkon, BJ

Normal modes of a small gamelan gong

Perrin, R Elford, DP Chalmers, L Swallowe, GM Moore, TR Hamdan, S Halkon, BJ

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Publication Type:: Journal Article
Citation:: Journal of the Acoustical Society of America, 2014, 136 (4), pp. 1942 - 1950
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Perrin, R	en_US
dc.contributor.author	Elford, DP	en_US
dc.contributor.author	Chalmers, L	en_US
dc.contributor.author	Swallowe, GM	en_US
dc.contributor.author	Moore, TR	en_US
dc.contributor.author	Hamdan, S	en_US
dc.contributor.author	Halkon, BJ https://orcid.org/0000-0001-5459-2329	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Journal of the Acoustical Society of America, 2014, 136 (4), pp. 1942 - 1950	en_US
dc.identifier.issn	0001-4966	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117446
dc.description.abstract	© 2014 Acoustical Society of America. Studies have been made of the normal modes of a 20.7 cm diameter steel gamelan gong. A finite-element model has been constructed and its predictions for normal modes compared with experimental results obtained using electronic speckle pattern interferometry. Agreement was reasonable in view of the lack of precision in the manufacture of the instrument. The results agree with expectations for an axially symmetric system subject to small symmetry breaking. The extent to which the results obey Chladni's law is discussed. Comparison with vibrational and acoustical spectra enabled the identification of the small number of modes responsible for the sound output when played normally. Evidence of non-linear behavior was found, mainly in the form of subharmonics of true modes. Experiments using scanning laser Doppler vibrometry gave satisfactory agreement with the other methods.	en_US
dc.relation.ispartof	Journal of the Acoustical Society of America	en_US
dc.relation.isbasedon	10.1121/1.4895683	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Acoustics	en_US
dc.title	Normal modes of a small gamelan gong	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	136	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.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	136	en_US

Abstract:

© 2014 Acoustical Society of America. Studies have been made of the normal modes of a 20.7 cm diameter steel gamelan gong. A finite-element model has been constructed and its predictions for normal modes compared with experimental results obtained using electronic speckle pattern interferometry. Agreement was reasonable in view of the lack of precision in the manufacture of the instrument. The results agree with expectations for an axially symmetric system subject to small symmetry breaking. The extent to which the results obey Chladni's law is discussed. Comparison with vibrational and acoustical spectra enabled the identification of the small number of modes responsible for the sound output when played normally. Evidence of non-linear behavior was found, mainly in the form of subharmonics of true modes. Experiments using scanning laser Doppler vibrometry gave satisfactory agreement with the other methods.

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http://hdl.handle.net/10453/117446