Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106327
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Wang, Z | en_US |
dc.creator | Choy, YS | en_US |
dc.creator | Wang, C | en_US |
dc.date.accessioned | 2024-05-09T00:52:46Z | - |
dc.date.available | 2024-05-09T00:52:46Z | - |
dc.identifier.issn | 0022-460X | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106327 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | ©2020 Published by Elsevier Ltd. | en_US |
dc.rights | ©2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.rights | The following publication Wang, Z., Choy, Y. S., & Wang, C. (2020). Vibro-acoustic analysis of parallel barriers integrated with flexible panels. Journal of Sound and Vibration, 489, Article 115653 is available at https://doi.org/10.1016/j.jsv.2020.115653. | en_US |
dc.subject | Flexible panel device | en_US |
dc.subject | Parallel barriers | en_US |
dc.subject | Vibro-acoustic analysis | en_US |
dc.title | Vibro-acoustic analysis of parallel barriers integrated with flexible panels | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 489 | en_US |
dc.identifier.doi | 10.1016/j.jsv.2020.115653 | en_US |
dcterms.abstract | In urban communities, parallel barriers are commonly erected for controlling environmental noise such as traffic and construction noise. However, owing to the multiple reflections between the parallel barriers, their performance may be worse than that of a single barrier. To improve the performance of parallel barriers, a small piece of flush-mounted panel backed by a slender cavity in an otherwise rigid wall of barriers is proposed. With the excitation of the incident wave from a sound source inside the parallel barriers, the flexible panel vibrates, and sound is radiated out to undergo acoustic interference with the sound field bounded by the parallel barriers. Consequently, the sound energy in this space and diffraction at the barrier top edge are reduced over a broad band in the low-frequency regime. A theoretical model for tackling the vibro-acoustic coupling between the sound field of the open cavity and the vibrating panel is established to investigate the noise reduction mechanism in the shadow zone. With optimal structural properties of the panel, an additional averaged insertion loss of approximately 5 dB can be achieved at 80–1000 Hz. The theorical results, which are experimentally validated, pave the way for the potential applications of the flexible panel devices (FPDs) for improving the noise reduction of parallel barriers. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of sound and vibration, 22 Dec. 2020, v. 489, 115653 | en_US |
dcterms.isPartOf | Journal of sound and vibration | en_US |
dcterms.issued | 2020-12-22 | - |
dc.identifier.scopus | 2-s2.0-85090592101 | - |
dc.identifier.eissn | 1095-8568 | en_US |
dc.identifier.artn | 115653 | en_US |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0156 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | Innovation and Technology Fund; The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 53372934 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Wang_Vibro-Acoustic_Analysis_Parallel.pdf | Pre-Published version | 1.52 MB | Adobe PDF | View/Open |
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