Empirical prediction of traffic noise transmission loss across plenum windows
A parametric study on the traffic noise transmission loss across plenum windows was carried out experimentally in this investigation in an attempt to establish a simple empirical model for predicting this transmission loss. A total of fourteen full scale plenum windows were included in this study. T...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4066/1/AJ%202019%20%28208%29.pdf |
| _version_ | 1796868950857875456 |
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| author | Li, Xiaolong Tong, Y.G. Tang, S.K. Lau, K.K. |
| author_facet | Li, Xiaolong Tong, Y.G. Tang, S.K. Lau, K.K. |
| author_sort | Li, Xiaolong |
| collection | UTHM |
| description | A parametric study on the traffic noise transmission loss across plenum windows was carried out experimentally in this investigation in an attempt to establish a simple empirical model for predicting this transmission loss. A total of fourteen full scale plenum windows were included in this study. The results of a site mockup measurement were used for model validation. The present model was developed based on the existing plenum chamber theory in which the sound fields inside the plenum window cavities were assumed to make up of a diffracted wave and a reverberant field. Results suggest that both the diffracted and reverberant field inside the plenum window cavities are weaker than those assumed in existing plenum chamber theory. It is found that a model, which assumes frequency-independent diffraction directivity and percentage reverberant field attenuation, gives the best prediction of traffic noise transmission loss. This prediction model is also able to predict site test results with good accuracy |
| first_indexed | 2024-03-05T21:47:31Z |
| format | Article |
| id | uthm.eprints-4066 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:47:31Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | uthm.eprints-40662021-11-24T02:21:27Z http://eprints.uthm.edu.my/4066/ Empirical prediction of traffic noise transmission loss across plenum windows Li, Xiaolong Tong, Y.G. Tang, S.K. Lau, K.K. TD878-894 Special types of environment, Including soil pollution, air pollution, noise pollution TK3001-3521 Distribution or transmission of electric power A parametric study on the traffic noise transmission loss across plenum windows was carried out experimentally in this investigation in an attempt to establish a simple empirical model for predicting this transmission loss. A total of fourteen full scale plenum windows were included in this study. The results of a site mockup measurement were used for model validation. The present model was developed based on the existing plenum chamber theory in which the sound fields inside the plenum window cavities were assumed to make up of a diffracted wave and a reverberant field. Results suggest that both the diffracted and reverberant field inside the plenum window cavities are weaker than those assumed in existing plenum chamber theory. It is found that a model, which assumes frequency-independent diffraction directivity and percentage reverberant field attenuation, gives the best prediction of traffic noise transmission loss. This prediction model is also able to predict site test results with good accuracy Elsevier 2019 Article PeerReviewed text en http://eprints.uthm.edu.my/4066/1/AJ%202019%20%28208%29.pdf Li, Xiaolong and Tong, Y.G. and Tang, S.K. and Lau, K.K. (2019) Empirical prediction of traffic noise transmission loss across plenum windows. Applied Acoustics, 151. pp. 45-54. ISSN 0003-682X https://doi.org/10.1016/j.apacoust.2019.03.004 |
| spellingShingle | TD878-894 Special types of environment, Including soil pollution, air pollution, noise pollution TK3001-3521 Distribution or transmission of electric power Li, Xiaolong Tong, Y.G. Tang, S.K. Lau, K.K. Empirical prediction of traffic noise transmission loss across plenum windows |
| title | Empirical prediction of traffic noise transmission loss across plenum windows |
| title_full | Empirical prediction of traffic noise transmission loss across plenum windows |
| title_fullStr | Empirical prediction of traffic noise transmission loss across plenum windows |
| title_full_unstemmed | Empirical prediction of traffic noise transmission loss across plenum windows |
| title_short | Empirical prediction of traffic noise transmission loss across plenum windows |
| title_sort | empirical prediction of traffic noise transmission loss across plenum windows |
| topic | TD878-894 Special types of environment, Including soil pollution, air pollution, noise pollution TK3001-3521 Distribution or transmission of electric power |
| url | http://eprints.uthm.edu.my/4066/1/AJ%202019%20%28208%29.pdf |
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