The use of Helmholtz resonators and panel absorbers in the design of duct silencers
The use of Helmholtz resonators and panel absorbers in reducing the noise propagated in ducts is investigated both analytically and experimentally. Using a simple approach, the impedance of the resonators is calculated taking into account the presence of sound absorbing material in the cavity. Equat...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-05-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1154 |
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| author | A. TROCHIDIS G. PAPANIKOLAOU |
| author_facet | A. TROCHIDIS G. PAPANIKOLAOU |
| author_sort | A. TROCHIDIS |
| collection | DOAJ |
| description | The use of Helmholtz resonators and panel absorbers in reducing the noise propagated in ducts is investigated both analytically and experimentally. Using a simple approach, the impedance of the resonators is calculated taking into account the presence of sound absorbing material in the cavity. Equations for the transmission loss are derived in both cases. Parameters such as dimensions, length of the opening and flow resistivity of the lining in case of Helmholtz resonators and panel thickness and dimensions in case of panel absorbers are systematically examined. Comparisons between experimental and predicted values are in good agreement showing that the model developed describes satisfactorily the behaviour of resonators in ducts and can be used for improved design of silencers incorporating resonators. |
| format | Article |
| id | doaj-art-3c660e942eb145db974dfc5d386b08a2 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-05-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-3c660e942eb145db974dfc5d386b08a22025-08-20T02:39:19ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-05-01183The use of Helmholtz resonators and panel absorbers in the design of duct silencersA. TROCHIDIS0G. PAPANIKOLAOU1School of Engineering Division of Physics, Aristotle University of ThessalonikiDepartment of Electrical Engineering, Aristotle University of ThessalonikiThe use of Helmholtz resonators and panel absorbers in reducing the noise propagated in ducts is investigated both analytically and experimentally. Using a simple approach, the impedance of the resonators is calculated taking into account the presence of sound absorbing material in the cavity. Equations for the transmission loss are derived in both cases. Parameters such as dimensions, length of the opening and flow resistivity of the lining in case of Helmholtz resonators and panel thickness and dimensions in case of panel absorbers are systematically examined. Comparisons between experimental and predicted values are in good agreement showing that the model developed describes satisfactorily the behaviour of resonators in ducts and can be used for improved design of silencers incorporating resonators.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1154 |
| spellingShingle | A. TROCHIDIS G. PAPANIKOLAOU The use of Helmholtz resonators and panel absorbers in the design of duct silencers Archives of Acoustics |
| title | The use of Helmholtz resonators and panel absorbers in the design of duct silencers |
| title_full | The use of Helmholtz resonators and panel absorbers in the design of duct silencers |
| title_fullStr | The use of Helmholtz resonators and panel absorbers in the design of duct silencers |
| title_full_unstemmed | The use of Helmholtz resonators and panel absorbers in the design of duct silencers |
| title_short | The use of Helmholtz resonators and panel absorbers in the design of duct silencers |
| title_sort | use of helmholtz resonators and panel absorbers in the design of duct silencers |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1154 |
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