Sound insulation of multi-layer glass-fiber felts: Role of morphology

Yong Yang; Binbin Li; Zhaofeng Chen; Ni Sui; Zhou Chen; Tengzhou Xu; Yufang Li; Renli Fu; Yun Jing

doi:10.1177/0040517516629142

Sound insulation of multi-layer glass-fiber felts: Role of morphology

Yong Yang, Binbin Li, Zhaofeng Chen, Ni Sui, Zhou Chen, Tengzhou Xu, Yufang Li, Renli Fu, Yun Jing

Graduate Program in Acoustics

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Glass-fiber felts have emerged as a popular material for noise reduction. This paper investigates the effect of various morphologies (micro-layer, macro-layer and air-layer) of glass-fiber felts on sound insulation. The sound transmission loss is measured by a Brüel & Kjár (B&K) impedance tube. The results show that the sound insulation of glass-fiber felts can be improved by increasing the number of macro-layers. The comparison between the macro- and micro-layer of glass-fiber felts on sound insulation is systematically carried out. Notably, the sound transmission loss of glass-fiber felts with similar areal density and thickness favors macro-layer structures over micro-layer structures. A simple model is established to explain this phenomenon. In addition, the sound transmission loss exhibits period fluctuations due to the presence of the air-layer between glass-fiber felts, which can be theoretically explained by the resonance effect. It is found that sound transmission loss can be improved by increasing the number of air-layers.

Original language	English (US)
Pages (from-to)	261-269
Number of pages	9
Journal	Textile Research Journal
Volume	87
Issue number	3
DOIs	https://doi.org/10.1177/0040517516629142
State	Published - Feb 1 2017

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Polymers and Plastics

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10.1177/0040517516629142

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title = "Sound insulation of multi-layer glass-fiber felts: Role of morphology",

abstract = "Glass-fiber felts have emerged as a popular material for noise reduction. This paper investigates the effect of various morphologies (micro-layer, macro-layer and air-layer) of glass-fiber felts on sound insulation. The sound transmission loss is measured by a Br{\"u}el & Kj{\'a}r (B&K) impedance tube. The results show that the sound insulation of glass-fiber felts can be improved by increasing the number of macro-layers. The comparison between the macro- and micro-layer of glass-fiber felts on sound insulation is systematically carried out. Notably, the sound transmission loss of glass-fiber felts with similar areal density and thickness favors macro-layer structures over micro-layer structures. A simple model is established to explain this phenomenon. In addition, the sound transmission loss exhibits period fluctuations due to the presence of the air-layer between glass-fiber felts, which can be theoretically explained by the resonance effect. It is found that sound transmission loss can be improved by increasing the number of air-layers.",

author = "Yong Yang and Binbin Li and Zhaofeng Chen and Ni Sui and Zhou Chen and Tengzhou Xu and Yufang Li and Renli Fu and Yun Jing",

note = "Funding Information: The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors would like to thank the financial support of Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites and the Priority Academic Program Development of Jiangsu Higher Education Institutions. This work was also supported by the NUAA Fundamental Research Funds (grant number NO.NS2015060), Major Achievements of Jiangsu Province (grant number BA2013097) and Development of Vacuum Insulation Panel of China Building Cooperative Research (grant number 2015DFI53000). Publisher Copyright: {\textcopyright} 2016, {\textcopyright} The Author(s) 2016.",

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T1 - Sound insulation of multi-layer glass-fiber felts

T2 - Role of morphology

AU - Yang, Yong

AU - Li, Binbin

AU - Chen, Zhaofeng

AU - Sui, Ni

AU - Chen, Zhou

AU - Xu, Tengzhou

AU - Li, Yufang

AU - Fu, Renli

AU - Jing, Yun

N1 - Funding Information: The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors would like to thank the financial support of Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites and the Priority Academic Program Development of Jiangsu Higher Education Institutions. This work was also supported by the NUAA Fundamental Research Funds (grant number NO.NS2015060), Major Achievements of Jiangsu Province (grant number BA2013097) and Development of Vacuum Insulation Panel of China Building Cooperative Research (grant number 2015DFI53000). Publisher Copyright: © 2016, © The Author(s) 2016.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Glass-fiber felts have emerged as a popular material for noise reduction. This paper investigates the effect of various morphologies (micro-layer, macro-layer and air-layer) of glass-fiber felts on sound insulation. The sound transmission loss is measured by a Brüel & Kjár (B&K) impedance tube. The results show that the sound insulation of glass-fiber felts can be improved by increasing the number of macro-layers. The comparison between the macro- and micro-layer of glass-fiber felts on sound insulation is systematically carried out. Notably, the sound transmission loss of glass-fiber felts with similar areal density and thickness favors macro-layer structures over micro-layer structures. A simple model is established to explain this phenomenon. In addition, the sound transmission loss exhibits period fluctuations due to the presence of the air-layer between glass-fiber felts, which can be theoretically explained by the resonance effect. It is found that sound transmission loss can be improved by increasing the number of air-layers.

AB - Glass-fiber felts have emerged as a popular material for noise reduction. This paper investigates the effect of various morphologies (micro-layer, macro-layer and air-layer) of glass-fiber felts on sound insulation. The sound transmission loss is measured by a Brüel & Kjár (B&K) impedance tube. The results show that the sound insulation of glass-fiber felts can be improved by increasing the number of macro-layers. The comparison between the macro- and micro-layer of glass-fiber felts on sound insulation is systematically carried out. Notably, the sound transmission loss of glass-fiber felts with similar areal density and thickness favors macro-layer structures over micro-layer structures. A simple model is established to explain this phenomenon. In addition, the sound transmission loss exhibits period fluctuations due to the presence of the air-layer between glass-fiber felts, which can be theoretically explained by the resonance effect. It is found that sound transmission loss can be improved by increasing the number of air-layers.

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Sound insulation of multi-layer glass-fiber felts: Role of morphology

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