Enhancement of acoustical performance of hollow tube sound absorber

Azma Putra, Fazlin Abd Khair, Mohd. Jailani Mohd Nor

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

Abstract

This paper presents acoustical performance of hollow structures utilizing the recycled lollipop sticks as acoustic absorbers. The hollow cross section of the structures is arranged facing the sound incidence. The effects of different length of the sticks and air gap on the acoustical performance are studied. The absorption coefficient was measured using impedance tube method. Here it is found that improvement on the sound absorption performance is achieved by introducing natural kapok fiber inserted into the void between the hollow structures. Results reveal that by inserting the kapok fibers, both the absorption bandwidth and the absorption coefficient increase. For test sample backed by a rigid surface, best performance of sound absorption is obtained for fibers inserted at the front and back sides of the absorber. And for the case of test sample with air gap, this is achieved for fibers introduced only at the back side of the absorber.

Original languageEnglish
Title of host publicationSustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015
PublisherAmerican Institute of Physics Inc.
Volume1717
ISBN (Electronic)9780735413658
DOIs
Publication statusPublished - 29 Mar 2016
Externally publishedYes
Event4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015 - Solo, Indonesia
Duration: 11 Nov 201512 Nov 2015

Other

Other4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015
CountryIndonesia
CitySolo
Period11/11/1512/11/15

Fingerprint

hollow
absorbers
tubes
fibers
acoustics
augmentation
sound transmission
absorptivity
air
voids
incidence
impedance
bandwidth
cross sections

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Putra, A., Khair, F. A., & Mohd Nor, M. J. (2016). Enhancement of acoustical performance of hollow tube sound absorber. In Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015 (Vol. 1717). [4943489] American Institute of Physics Inc.. https://doi.org/10.1063/1.4943489

Enhancement of acoustical performance of hollow tube sound absorber. / Putra, Azma; Khair, Fazlin Abd; Mohd Nor, Mohd. Jailani.

Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015. Vol. 1717 American Institute of Physics Inc., 2016. 4943489.

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

Putra, A, Khair, FA & Mohd Nor, MJ 2016, Enhancement of acoustical performance of hollow tube sound absorber. in Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015. vol. 1717, 4943489, American Institute of Physics Inc., 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015, Solo, Indonesia, 11/11/15. https://doi.org/10.1063/1.4943489
Putra A, Khair FA, Mohd Nor MJ. Enhancement of acoustical performance of hollow tube sound absorber. In Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015. Vol. 1717. American Institute of Physics Inc. 2016. 4943489 https://doi.org/10.1063/1.4943489
Putra, Azma ; Khair, Fazlin Abd ; Mohd Nor, Mohd. Jailani. / Enhancement of acoustical performance of hollow tube sound absorber. Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015. Vol. 1717 American Institute of Physics Inc., 2016.
@inproceedings{bbf2f1b7a57848ceb0403bf577b43c0e,
title = "Enhancement of acoustical performance of hollow tube sound absorber",
abstract = "This paper presents acoustical performance of hollow structures utilizing the recycled lollipop sticks as acoustic absorbers. The hollow cross section of the structures is arranged facing the sound incidence. The effects of different length of the sticks and air gap on the acoustical performance are studied. The absorption coefficient was measured using impedance tube method. Here it is found that improvement on the sound absorption performance is achieved by introducing natural kapok fiber inserted into the void between the hollow structures. Results reveal that by inserting the kapok fibers, both the absorption bandwidth and the absorption coefficient increase. For test sample backed by a rigid surface, best performance of sound absorption is obtained for fibers inserted at the front and back sides of the absorber. And for the case of test sample with air gap, this is achieved for fibers introduced only at the back side of the absorber.",
author = "Azma Putra and Khair, {Fazlin Abd} and {Mohd Nor}, {Mohd. Jailani}",
year = "2016",
month = "3",
day = "29",
doi = "10.1063/1.4943489",
language = "English",
volume = "1717",
booktitle = "Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015",
publisher = "American Institute of Physics Inc.",

}

TY - GEN

T1 - Enhancement of acoustical performance of hollow tube sound absorber

AU - Putra, Azma

AU - Khair, Fazlin Abd

AU - Mohd Nor, Mohd. Jailani

PY - 2016/3/29

Y1 - 2016/3/29

N2 - This paper presents acoustical performance of hollow structures utilizing the recycled lollipop sticks as acoustic absorbers. The hollow cross section of the structures is arranged facing the sound incidence. The effects of different length of the sticks and air gap on the acoustical performance are studied. The absorption coefficient was measured using impedance tube method. Here it is found that improvement on the sound absorption performance is achieved by introducing natural kapok fiber inserted into the void between the hollow structures. Results reveal that by inserting the kapok fibers, both the absorption bandwidth and the absorption coefficient increase. For test sample backed by a rigid surface, best performance of sound absorption is obtained for fibers inserted at the front and back sides of the absorber. And for the case of test sample with air gap, this is achieved for fibers introduced only at the back side of the absorber.

AB - This paper presents acoustical performance of hollow structures utilizing the recycled lollipop sticks as acoustic absorbers. The hollow cross section of the structures is arranged facing the sound incidence. The effects of different length of the sticks and air gap on the acoustical performance are studied. The absorption coefficient was measured using impedance tube method. Here it is found that improvement on the sound absorption performance is achieved by introducing natural kapok fiber inserted into the void between the hollow structures. Results reveal that by inserting the kapok fibers, both the absorption bandwidth and the absorption coefficient increase. For test sample backed by a rigid surface, best performance of sound absorption is obtained for fibers inserted at the front and back sides of the absorber. And for the case of test sample with air gap, this is achieved for fibers introduced only at the back side of the absorber.

UR - http://www.scopus.com/inward/record.url?scp=84984586900&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84984586900&partnerID=8YFLogxK

U2 - 10.1063/1.4943489

DO - 10.1063/1.4943489

M3 - Conference contribution

AN - SCOPUS:84984586900

VL - 1717

BT - Sustainable Energy and Advanced Materials: Proceeding of the 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials 2015, ICE-SEAM 2015

PB - American Institute of Physics Inc.

ER -