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Conference Paper: On the sound absorption performance of corrugated micro-perforated panel absorbers
Title | On the sound absorption performance of corrugated micro-perforated panel absorbers |
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Authors | |
Keywords | Micro-perforated panel Corrugated Sound absorption |
Issue Date | 2019 |
Publisher | The Spanish Acoustical Society (SEA). |
Citation | Proceedings of Inter-Noise 2019: The 48th International Congress and Exhibition on Noise Control Engineering: Noise control for a better environment, Madrid, Spain, 15–19 June 2019, p. no. 1476:1-12 How to Cite? |
Abstract | As an attractive alternative to traditional porous materials, micro-perforated panel (MPP) absorbers have been widely used in room acoustics, environmental noise remediation and duct noise control. In the previous works, the MPP is usually assumed to be a flat panel perforated with sub-millimeter orifices, and that is also the most common form of MPPs used in practice. In practice, however, corrugated panels are widely used in architecture as roofs, ceilings and walls not only for decoration but also for greater rigidity in comparison to the plane plates. For noisy environments such as swimming pools, perforated corrugated panels with a back sound absorption layer or corrugated micro-perforated panels (corrugated MPPs) can be conveniently used to achieve a favourable acoustic environment and reduce the noise level. So far, however, almost all reported studies on MPP absorbers are based on flat MPPs, and a comprehensive investigation on corrugated MPP absorbers is seldom seen. The main purpose of the present work is to investigate the sound absorption performance of corrugated MPP absorbers, with emphasis on comparison with that of flat MPP absorbers. To this end, a three-dimensional (3D) finite element model is established to simulate the sound absorption performance of the corrugated MPP absorber. The corrugated profile is assumed to be sinusoidal and other possible shapes such as triangle and trapezoid are excluded at the current stage. Results show that , replacing the flat MPP with a corrugated one modify the coupling mode in the air-mass system, resulting in different sound absorption performance in comparison with the conventional flat MPP absorbers. |
Description | Session 05: TS.01.04.Micro-perforated Plates - no. 1476 |
Persistent Identifier | http://hdl.handle.net/10722/272408 |
DC Field | Value | Language |
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dc.contributor.author | Wang, C | - |
dc.contributor.author | Liu, X | - |
dc.contributor.author | Huang, L | - |
dc.date.accessioned | 2019-07-20T10:41:45Z | - |
dc.date.available | 2019-07-20T10:41:45Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Proceedings of Inter-Noise 2019: The 48th International Congress and Exhibition on Noise Control Engineering: Noise control for a better environment, Madrid, Spain, 15–19 June 2019, p. no. 1476:1-12 | - |
dc.identifier.uri | http://hdl.handle.net/10722/272408 | - |
dc.description | Session 05: TS.01.04.Micro-perforated Plates - no. 1476 | - |
dc.description.abstract | As an attractive alternative to traditional porous materials, micro-perforated panel (MPP) absorbers have been widely used in room acoustics, environmental noise remediation and duct noise control. In the previous works, the MPP is usually assumed to be a flat panel perforated with sub-millimeter orifices, and that is also the most common form of MPPs used in practice. In practice, however, corrugated panels are widely used in architecture as roofs, ceilings and walls not only for decoration but also for greater rigidity in comparison to the plane plates. For noisy environments such as swimming pools, perforated corrugated panels with a back sound absorption layer or corrugated micro-perforated panels (corrugated MPPs) can be conveniently used to achieve a favourable acoustic environment and reduce the noise level. So far, however, almost all reported studies on MPP absorbers are based on flat MPPs, and a comprehensive investigation on corrugated MPP absorbers is seldom seen. The main purpose of the present work is to investigate the sound absorption performance of corrugated MPP absorbers, with emphasis on comparison with that of flat MPP absorbers. To this end, a three-dimensional (3D) finite element model is established to simulate the sound absorption performance of the corrugated MPP absorber. The corrugated profile is assumed to be sinusoidal and other possible shapes such as triangle and trapezoid are excluded at the current stage. Results show that , replacing the flat MPP with a corrugated one modify the coupling mode in the air-mass system, resulting in different sound absorption performance in comparison with the conventional flat MPP absorbers. | - |
dc.language | eng | - |
dc.publisher | The Spanish Acoustical Society (SEA). | - |
dc.relation.ispartof | Inter-Noise 2019: Noise Control for a Better Environment | - |
dc.subject | Micro-perforated panel | - |
dc.subject | Corrugated | - |
dc.subject | Sound absorption | - |
dc.title | On the sound absorption performance of corrugated micro-perforated panel absorbers | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Huang, L: lixi.huang@hku.hk | - |
dc.identifier.authority | Huang, L=rp00119 | - |
dc.identifier.hkuros | 298626 | - |
dc.publisher.place | Madrid | - |