Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes

Abstract It has been demonstrated that a staggered window achieves better noise reduction performance than a traditional single glazing one at middle to high frequencies while maintaining a degree of natural ventilation. There is, however, little improvement in the low frequency range. In contrast,...

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Autores principales:	Shuping Wang, Jiancheng Tao, Xiaojun Qiu, Ian S. Burnett
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d36b956e50f24e69aaef403a9bed887e
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spelling	oai:doaj.org-article:d36b956e50f24e69aaef403a9bed887e2021-12-02T16:31:02ZBroadband noise insulation of windows using coiled-up silencers consisting of coupled tubes10.1038/s41598-021-85796-02045-2322https://doaj.org/article/d36b956e50f24e69aaef403a9bed887e2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85796-0https://doaj.org/toc/2045-2322Abstract It has been demonstrated that a staggered window achieves better noise reduction performance than a traditional single glazing one at middle to high frequencies while maintaining a degree of natural ventilation. There is, however, little improvement in the low frequency range. In contrast, this work proposes to apply coiled-up silencers consisting of coupled tubes on the side walls of staggered windows to obtain noise attenuation in a broad band, especially in the low frequency range. Each element in the silencer consists of two coupled tubes with different cross sections so that noise at more frequencies can be attenuated than that with a uniform cross section. The simulation results show that 8.8 dB overall insertion loss can be obtained between 100 and 500 Hz after applying a combination of silencers designed at 7 different frequencies, and the insertion loss of the staggered window is increased from 6.7 to 15.6 dBA between 100 and 2000 Hz for normal incident traffic noise with the proposed silencers installed. The design is validated by the experiments with a 1:4 scale down model.Shuping WangJiancheng TaoXiaojun QiuIan S. BurnettNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuping Wang Jiancheng Tao Xiaojun Qiu Ian S. Burnett Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
description	Abstract It has been demonstrated that a staggered window achieves better noise reduction performance than a traditional single glazing one at middle to high frequencies while maintaining a degree of natural ventilation. There is, however, little improvement in the low frequency range. In contrast, this work proposes to apply coiled-up silencers consisting of coupled tubes on the side walls of staggered windows to obtain noise attenuation in a broad band, especially in the low frequency range. Each element in the silencer consists of two coupled tubes with different cross sections so that noise at more frequencies can be attenuated than that with a uniform cross section. The simulation results show that 8.8 dB overall insertion loss can be obtained between 100 and 500 Hz after applying a combination of silencers designed at 7 different frequencies, and the insertion loss of the staggered window is increased from 6.7 to 15.6 dBA between 100 and 2000 Hz for normal incident traffic noise with the proposed silencers installed. The design is validated by the experiments with a 1:4 scale down model.
format	article
author	Shuping Wang Jiancheng Tao Xiaojun Qiu Ian S. Burnett
author_facet	Shuping Wang Jiancheng Tao Xiaojun Qiu Ian S. Burnett
author_sort	Shuping Wang
title	Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
title_short	Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
title_full	Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
title_fullStr	Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
title_full_unstemmed	Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
title_sort	broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d36b956e50f24e69aaef403a9bed887e
work_keys_str_mv	AT shupingwang broadbandnoiseinsulationofwindowsusingcoiledupsilencersconsistingofcoupledtubes AT jianchengtao broadbandnoiseinsulationofwindowsusingcoiledupsilencersconsistingofcoupledtubes AT xiaojunqiu broadbandnoiseinsulationofwindowsusingcoiledupsilencersconsistingofcoupledtubes AT iansburnett broadbandnoiseinsulationofwindowsusingcoiledupsilencersconsistingofcoupledtubes
_version_	1718383902077222912

Broadband noise insulation of windows using coiled-up silencers consisting of coupled tubes

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