Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/96074
Title: | Reducing interior noise in a cylinder using micro-perforated panels | Authors: | Yang, C Cheng, L Hu, Z |
Issue Date: | Aug-2015 | Source: | Applied acoustics, Aug. 2015, v. 95, p. 50-56 | Abstract: | Sound absorption inside a cylindrical enclosure using micro-perforated panels (MPP) is investigated. Attention is focused on analyzing the effect of backing cavities on the sound absorption capabilities of various MPP configurations both numerically and experimentally. A model is used to analyze the acoustic coupling between the cylindrical acoustic domain enclosed by the MPP and the annular cylindrical acoustic domain forming the air space behind it. It was shown that the sound field in the backing cavity of the MPP plays an important role in determining the energy dissipation efficiency of the MPP construction, and thereby affects the degree of attenuation of the standing waves inside the enclosure. Conventional MPP construction with a backing air layer was shown to only provide limited noise reduction, but fail at certain frequencies associated with the acoustic resonances of the cylindrical acoustic field. The problem can be tackled by adding proper partitions in the baking cavity, as a result of the alteration of the acoustic coupling across the MPP panels. | Keywords: | Acoustic coupling Cylindrical enclosure Micro-perforated panel |
Publisher: | Pergamon Press | Journal: | Applied acoustics | ISSN: | 0003-682X | EISSN: | 1872-910X | DOI: | 10.1016/j.apacoust.2015.02.003 | Rights: | © 2015 Elsevier Ltd. All rights reserved. © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ The following publication Yang, C., Cheng, L., & Hu, Z. (2015). Reducing interior noise in a cylinder using micro-perforated panels. Applied Acoustics, 95, 50-56 is available at https://doi.org/10.1016/j.apacoust.2015.02.003. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Reducing_Interior_Noise.pdf | Pre-Published version | 1.3 MB | Adobe PDF | View/Open |
Page views
40
Last Week
0
0
Last month
Citations as of May 19, 2024
Downloads
40
Citations as of May 19, 2024
SCOPUSTM
Citations
31
Citations as of May 16, 2024
WEB OF SCIENCETM
Citations
27
Citations as of May 16, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.