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Effect of fabric layer on sound absorption of micro-perforated panel

Micro-Perforated Panel (MPP) absorber becomes an alternative to common fibrous porous absorber without owning health and environmental issues. The system is considered as the next generation of absorber in noise control. However, such a system suffers from narrow absorption bandwidth so that its app...

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Main Authors: Putra, Azma, Kassim, Dg Hafizah, Ismail, Rainah, Jamil, Mohamad Hafiz, Prasetiyo, Iwan
Format: Article
Language:English
Published: Praise Worthy Prize 2020
Online Access:http://eprints.utem.edu.my/id/eprint/24973/2/FABRIC%20LAYER%20MPP_IREA-2020.PDF
http://eprints.utem.edu.my/id/eprint/24973/
https://www.praiseworthyprize.org/jsm/index.php?journal=irea&page=article&op=view&path%5B%5D=24056
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spelling my.utem.eprints.249732022-04-06T14:33:06Z http://eprints.utem.edu.my/id/eprint/24973/ Effect of fabric layer on sound absorption of micro-perforated panel Putra, Azma Kassim, Dg Hafizah Ismail, Rainah Jamil, Mohamad Hafiz Prasetiyo, Iwan Micro-Perforated Panel (MPP) absorber becomes an alternative to common fibrous porous absorber without owning health and environmental issues. The system is considered as the next generation of absorber in noise control. However, such a system suffers from narrow absorption bandwidth so that its application becomes limited. Theoretically, the frequency range with effective absorption is determined by the surface acoustic impedance controlled by the perforation ratio, hole diameter and cavity depth. Hence, by keeping those parameters to be constant, an intervention to the change of impedance is expected to be useful in widening the absorption bandwidth. In this research, textile materials from woven fabrics namely cotton fabric, plain fabric and satin fabric were used to cover the surface of Micro Perforated Panel (MPP) absorber either at the front or at the back surface. The sound absorption coefficients were measured for the normal incidence using an impedance tube. From the measured results, it is found that the presence of the fabric on MPP surface can improve the MPP absorber in terms of amplitude as well as the frequency bandwidth of absorption. Moreover, the placement of the woven fabric at downstream area is more beneficial than at the upstream area Praise Worthy Prize 2020-03 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/24973/2/FABRIC%20LAYER%20MPP_IREA-2020.PDF Putra, Azma and Kassim, Dg Hafizah and Ismail, Rainah and Jamil, Mohamad Hafiz and Prasetiyo, Iwan (2020) Effect of fabric layer on sound absorption of micro-perforated panel. International Journal On Engineering Applications, 8 (2). pp. 41-46. ISSN 2281-2881 https://www.praiseworthyprize.org/jsm/index.php?journal=irea&page=article&op=view&path%5B%5D=24056 10.15866/irea.v8i2.17976
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description Micro-Perforated Panel (MPP) absorber becomes an alternative to common fibrous porous absorber without owning health and environmental issues. The system is considered as the next generation of absorber in noise control. However, such a system suffers from narrow absorption bandwidth so that its application becomes limited. Theoretically, the frequency range with effective absorption is determined by the surface acoustic impedance controlled by the perforation ratio, hole diameter and cavity depth. Hence, by keeping those parameters to be constant, an intervention to the change of impedance is expected to be useful in widening the absorption bandwidth. In this research, textile materials from woven fabrics namely cotton fabric, plain fabric and satin fabric were used to cover the surface of Micro Perforated Panel (MPP) absorber either at the front or at the back surface. The sound absorption coefficients were measured for the normal incidence using an impedance tube. From the measured results, it is found that the presence of the fabric on MPP surface can improve the MPP absorber in terms of amplitude as well as the frequency bandwidth of absorption. Moreover, the placement of the woven fabric at downstream area is more beneficial than at the upstream area
format Article
author Putra, Azma
Kassim, Dg Hafizah
Ismail, Rainah
Jamil, Mohamad Hafiz
Prasetiyo, Iwan
spellingShingle Putra, Azma
Kassim, Dg Hafizah
Ismail, Rainah
Jamil, Mohamad Hafiz
Prasetiyo, Iwan
Effect of fabric layer on sound absorption of micro-perforated panel
author_facet Putra, Azma
Kassim, Dg Hafizah
Ismail, Rainah
Jamil, Mohamad Hafiz
Prasetiyo, Iwan
author_sort Putra, Azma
title Effect of fabric layer on sound absorption of micro-perforated panel
title_short Effect of fabric layer on sound absorption of micro-perforated panel
title_full Effect of fabric layer on sound absorption of micro-perforated panel
title_fullStr Effect of fabric layer on sound absorption of micro-perforated panel
title_full_unstemmed Effect of fabric layer on sound absorption of micro-perforated panel
title_sort effect of fabric layer on sound absorption of micro-perforated panel
publisher Praise Worthy Prize
publishDate 2020
url http://eprints.utem.edu.my/id/eprint/24973/2/FABRIC%20LAYER%20MPP_IREA-2020.PDF
http://eprints.utem.edu.my/id/eprint/24973/
https://www.praiseworthyprize.org/jsm/index.php?journal=irea&page=article&op=view&path%5B%5D=24056
_version_ 1729707891243352064
score 13.211869

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