Normal modes of a small gamelan gong
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 l...
| Main Authors: | , , , , , , |
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| Format: | Article |
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Acoustical Society of America
2014
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| Online Access: | http://ir.unimas.my/id/eprint/5241/ |
| _version_ | 1848835616267042816 |
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| author | Robert, Perrin Daniel, P. Elford Luke, Chalmers Gerry, M. Swallowe Thomas, R. Moore Sinin, Hamdan Benjamin, J. Halkon |
| author_facet | Robert, Perrin Daniel, P. Elford Luke, Chalmers Gerry, M. Swallowe Thomas, R. Moore Sinin, Hamdan Benjamin, J. Halkon |
| author_sort | Robert, Perrin |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-15T06:10:42Z |
| format | Article |
| id | unimas-5241 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| last_indexed | 2025-11-15T06:10:42Z |
| publishDate | 2014 |
| publisher | Acoustical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-52412015-03-11T04:06:43Z http://ir.unimas.my/id/eprint/5241/ Normal modes of a small gamelan gong Robert, Perrin Daniel, P. Elford Luke, Chalmers Gerry, M. Swallowe Thomas, R. Moore Sinin, Hamdan Benjamin, J. Halkon TA Engineering (General). Civil engineering (General) 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. Acoustical Society of America 2014 Article PeerReviewed Robert, Perrin and Daniel, P. Elford and Luke, Chalmers and Gerry, M. Swallowe and Thomas, R. Moore and Sinin, Hamdan and Benjamin, J. Halkon (2014) Normal modes of a small gamelan gong. The Journal of the Acoustical Society of America, 136 (4). http://scitation.aip.org/content/asa/journal/jasa/136/4/10.1121/1.4895683 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Robert, Perrin Daniel, P. Elford Luke, Chalmers Gerry, M. Swallowe Thomas, R. Moore Sinin, Hamdan Benjamin, J. Halkon Normal modes of a small gamelan gong |
| title | Normal modes of a small gamelan gong |
| title_full | Normal modes of a small gamelan gong |
| title_fullStr | Normal modes of a small gamelan gong |
| title_full_unstemmed | Normal modes of a small gamelan gong |
| title_short | Normal modes of a small gamelan gong |
| title_sort | normal modes of a small gamelan gong |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://ir.unimas.my/id/eprint/5241/ http://ir.unimas.my/id/eprint/5241/ |