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Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer

Noise is an existing problem that exist in the environments produced from vibrating sources. In general, the common solutions for noise control are: (1) redesigning the system the system for instance increasing wall thickness or stiffening structures, and (2) adding additional damping in acous...

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Main Authors:	Salleh, Muhammad Mohamed, Ghazali, Mohd Hafiz, Md Salleh, Salihatun, Manshoor, Bukhari, Khalid, Amir, Shiau, Wei Chan, Zaman, Izzuddin
Format:	Article
Language:	English
Published:	Penerbit UINMAP 2022
Subjects:	T Technology (General)
Online Access:	http://eprints.uthm.edu.my/7715/1/J14569_fc542fe4cba9dc2fe9a82acd1473a093.pdf http://eprints.uthm.edu.my/7715/
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spelling	my.uthm.eprints.77152022-09-22T07:12:19Z http://eprints.uthm.edu.my/7715/ Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer Salleh, Muhammad Mohamed Ghazali, Mohd Hafiz Md Salleh, Salihatun Manshoor, Bukhari Khalid, Amir Shiau, Wei Chan Zaman, Izzuddin T Technology (General) Noise is an existing problem that exist in the environments produced from vibrating sources. In general, the common solutions for noise control are: (1) redesigning the system the system for instance increasing wall thickness or stiffening structures, and (2) adding additional damping in acoustic systems to dissipate sound energy such as the use of resonator silencers. However, the latter is more practical because it does not concern about the complexity of the design and modification cost. In this paper, the application of a single resonator silencer to reduce sound pressure levels and increase transmission loss of a rectangular duct is investigated. The application is further expanded by attaching multiple resonator silencers to study its efficiency. Two types of resonator silencers were analyzed namely quarter wavelength tube (QWT) and Helmholtz resonator (HR), where the sound pressure level and transmission loss were determined by finite element analysis using ANSYS. The first outcomes show that a single HR displays more efficiency in the reduction of sound pressure levels compared to a QWT over a wide frequency range. Subsequently, as the number of resonator silencers increased, the transmission loss was found increase with the sound pressure level decreased simultaneously. Overall, it can be concluded that HR is more effective over a wide frequency range and multiple resonator silencers can increase the transmission loss of rectangular duct. Penerbit UINMAP 2022 Article PeerReviewed text en http://eprints.uthm.edu.my/7715/1/J14569_fc542fe4cba9dc2fe9a82acd1473a093.pdf Salleh, Muhammad Mohamed and Ghazali, Mohd Hafiz and Md Salleh, Salihatun and Manshoor, Bukhari and Khalid, Amir and Shiau, Wei Chan and Zaman, Izzuddin (2022) Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer. International Journal of Nanoelectronics and Materials, 15. pp. 355-364.
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	T Technology (General)
spellingShingle	T Technology (General) Salleh, Muhammad Mohamed Ghazali, Mohd Hafiz Md Salleh, Salihatun Manshoor, Bukhari Khalid, Amir Shiau, Wei Chan Zaman, Izzuddin Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
description	Noise is an existing problem that exist in the environments produced from vibrating sources. In general, the common solutions for noise control are: (1) redesigning the system the system for instance increasing wall thickness or stiffening structures, and (2) adding additional damping in acoustic systems to dissipate sound energy such as the use of resonator silencers. However, the latter is more practical because it does not concern about the complexity of the design and modification cost. In this paper, the application of a single resonator silencer to reduce sound pressure levels and increase transmission loss of a rectangular duct is investigated. The application is further expanded by attaching multiple resonator silencers to study its efficiency. Two types of resonator silencers were analyzed namely quarter wavelength tube (QWT) and Helmholtz resonator (HR), where the sound pressure level and transmission loss were determined by finite element analysis using ANSYS. The first outcomes show that a single HR displays more efficiency in the reduction of sound pressure levels compared to a QWT over a wide frequency range. Subsequently, as the number of resonator silencers increased, the transmission loss was found increase with the sound pressure level decreased simultaneously. Overall, it can be concluded that HR is more effective over a wide frequency range and multiple resonator silencers can increase the transmission loss of rectangular duct.
format	Article
author	Salleh, Muhammad Mohamed Ghazali, Mohd Hafiz Md Salleh, Salihatun Manshoor, Bukhari Khalid, Amir Shiau, Wei Chan Zaman, Izzuddin
author_facet	Salleh, Muhammad Mohamed Ghazali, Mohd Hafiz Md Salleh, Salihatun Manshoor, Bukhari Khalid, Amir Shiau, Wei Chan Zaman, Izzuddin
author_sort	Salleh, Muhammad Mohamed
title	Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
title_short	Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
title_full	Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
title_fullStr	Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
title_full_unstemmed	Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
title_sort	parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
publisher	Penerbit UINMAP
publishDate	2022
url	http://eprints.uthm.edu.my/7715/1/J14569_fc542fe4cba9dc2fe9a82acd1473a093.pdf http://eprints.uthm.edu.my/7715/
_version_	1745564174436532224
score	13.211869

Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer

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