Development of semi-active panel design for sound absorption

N. S S Selamat, Mohd Faizal Mat Tahir, Rozli Zulkifli, Mohd. Jailani Mohd Nor, Mohd Anas Mohd Sabri, M. J. Mohd Nor, M. J. Mohd Nor, M. A. Mohd Sabri, M. A. Mohd Sabri, A. K. Elwaleed, M. Y. Siti-Munirah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Various noise-absorbing materials and apparatus were developed not only for industry purposes but also for increased personal convenience through the absorption of unwanted sound. Absorbing products are typically passive mediums, whereas active-control absorption is expensive and complicated to install. Thus, in this study, a semi-active panel design for the sound absorber is developed to ensure operation at a required absorption level for a particular environment and to allow manual control. This study focused on producing an optimum design from several blueprints by using the simulation program, WinFlag. Simulation results are validated by using the impedance tube method. The samples used are perforated plates with open areas of 5%, 7.5%, 10%, 12.5%, and 15%. The second layer is a 35-mm thick coconut coir fiber as the main absorbing material. The third layer is air cavity. Simulation results indicate that the panel with perforation plates with 15% open areas gained the highest peak of sound absorption coefficient (0.851) at 5000 Hz. By using 30 mm thick air cavities, the highest peak is 0.963 at 3129 Hz. Experimental results indicate that the highest peak of sound absorption coefficient is 0.847 for the 15% open area of perforated plates, whereas the highest peak is 0.934 when 30 mm thick air cavities are used. The same pattern in the overall results denotes that the experiment result agrees with that of the simulation.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd
Pages421-425
Number of pages5
Volume663
ISBN (Print)9783038352617
DOIs
Publication statusPublished - 2014
Event2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013 - Kuala Lumpur
Duration: 16 Dec 201318 Dec 2013

Publication series

NameApplied Mechanics and Materials
Volume663
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013
CityKuala Lumpur
Period16/12/1318/12/13

Fingerprint

Acoustic waves
Perforated plates
Air
Manual control
Blueprints
Acoustic noise
Fibers
Industry
Experiments
Optimum design

Keywords

  • Noise absorption
  • Perforated
  • Semi-active

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Selamat, N. S. S., Mat Tahir, M. F., Zulkifli, R., Mohd Nor, M. J., Mohd Sabri, M. A., Mohd Nor, M. J., ... Siti-Munirah, M. Y. (2014). Development of semi-active panel design for sound absorption. In Applied Mechanics and Materials (Vol. 663, pp. 421-425). (Applied Mechanics and Materials; Vol. 663). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMM.663.421

Development of semi-active panel design for sound absorption. / Selamat, N. S S; Mat Tahir, Mohd Faizal; Zulkifli, Rozli; Mohd Nor, Mohd. Jailani; Mohd Sabri, Mohd Anas; Mohd Nor, M. J.; Mohd Nor, M. J.; Mohd Sabri, M. A.; Mohd Sabri, M. A.; Elwaleed, A. K.; Siti-Munirah, M. Y.

Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. p. 421-425 (Applied Mechanics and Materials; Vol. 663).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Selamat, NSS, Mat Tahir, MF, Zulkifli, R, Mohd Nor, MJ, Mohd Sabri, MA, Mohd Nor, MJ, Mohd Nor, MJ, Mohd Sabri, MA, Mohd Sabri, MA, Elwaleed, AK & Siti-Munirah, MY 2014, Development of semi-active panel design for sound absorption. in Applied Mechanics and Materials. vol. 663, Applied Mechanics and Materials, vol. 663, Trans Tech Publications Ltd, pp. 421-425, 2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013, Kuala Lumpur, 16/12/13. https://doi.org/10.4028/www.scientific.net/AMM.663.421
Selamat NSS, Mat Tahir MF, Zulkifli R, Mohd Nor MJ, Mohd Sabri MA, Mohd Nor MJ et al. Development of semi-active panel design for sound absorption. In Applied Mechanics and Materials. Vol. 663. Trans Tech Publications Ltd. 2014. p. 421-425. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.663.421
Selamat, N. S S ; Mat Tahir, Mohd Faizal ; Zulkifli, Rozli ; Mohd Nor, Mohd. Jailani ; Mohd Sabri, Mohd Anas ; Mohd Nor, M. J. ; Mohd Nor, M. J. ; Mohd Sabri, M. A. ; Mohd Sabri, M. A. ; Elwaleed, A. K. ; Siti-Munirah, M. Y. / Development of semi-active panel design for sound absorption. Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. pp. 421-425 (Applied Mechanics and Materials).
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