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Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]

This project involves the study of the sound absorption coefficient of a composite material made from coir fibre reinforced with poly lactic acid (PLA). Sound absorption coefficient, α is the value of sound that the material can absorb. This study was conducted to investigate the sound absorption pr...

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Main Authors: Shuib, Solehuddin, Yahya, Muhd Azman, Abdullah, Abdul Hakim, Kamaruddin, Nur Syafiqah
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018
Subjects:
Mechanics applied to machinery. Dynamics
Machine construction (General)
Electric apparatus and materials. Electric circuits. Electric networks
Online Access:http://ir.uitm.edu.my/id/eprint/40588/1/40588.pdf
http://ir.uitm.edu.my/id/eprint/40588/
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spelling my.uitm.ir.405882021-01-17T03:00:06Z http://ir.uitm.edu.my/id/eprint/40588/ Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.] Shuib, Solehuddin Yahya, Muhd Azman Abdullah, Abdul Hakim Kamaruddin, Nur Syafiqah Mechanics applied to machinery. Dynamics Machine construction (General) Electric apparatus and materials. Electric circuits. Electric networks This project involves the study of the sound absorption coefficient of a composite material made from coir fibre reinforced with poly lactic acid (PLA). Sound absorption coefficient, α is the value of sound that the material can absorb. This study was conducted to investigate the sound absorption properties of coir fibre composite based on the different values of coir fibre ratio. It also determined whether the coir fibre composite is suitable or not to be used as noise level reducer in the spaces like room or hall. The sound absorption coefficient’s values of the test specimens for low and high-frequency bands were determined experimentally using the impedance tube method or known as two-microphone transfer function method with the range of frequency around 500-4500Hz by referring to the ISO 10534-2 standard procedure. The result of the sound absorption coefficient was processed using Audacity software and LDS Dactron Photon signal analyser while the results were presented in graph form using MATLAB. The characteristics of the sound absorption coefficient for each coir fibre ratio were discussed based on the range of frequency used. For the specimen with higher fibre ratio, it had a higher value of alpha, α compared to the lower fibre ratio. In conclusion, the specimen with the highest amount of fibre ratio has better sound absorption coefficient which the value is 0.98 compared to the specimen with lowest fibre content which is 0.3. Thus, higher fibre content is more suitable to be used as a noise level reducer. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/40588/1/40588.pdf Shuib, Solehuddin and Yahya, Muhd Azman and Abdullah, Abdul Hakim and Kamaruddin, Nur Syafiqah (2018) Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]. Journal of Mechanical Engineering (JMechE), SI 5 (5). pp. 166-175. ISSN 18235514
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Mechanics applied to machinery. Dynamics
Machine construction (General)
Electric apparatus and materials. Electric circuits. Electric networks
spellingShingle Mechanics applied to machinery. Dynamics
Machine construction (General)
Electric apparatus and materials. Electric circuits. Electric networks
Shuib, Solehuddin
Yahya, Muhd Azman
Abdullah, Abdul Hakim
Kamaruddin, Nur Syafiqah
Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
description This project involves the study of the sound absorption coefficient of a composite material made from coir fibre reinforced with poly lactic acid (PLA). Sound absorption coefficient, α is the value of sound that the material can absorb. This study was conducted to investigate the sound absorption properties of coir fibre composite based on the different values of coir fibre ratio. It also determined whether the coir fibre composite is suitable or not to be used as noise level reducer in the spaces like room or hall. The sound absorption coefficient’s values of the test specimens for low and high-frequency bands were determined experimentally using the impedance tube method or known as two-microphone transfer function method with the range of frequency around 500-4500Hz by referring to the ISO 10534-2 standard procedure. The result of the sound absorption coefficient was processed using Audacity software and LDS Dactron Photon signal analyser while the results were presented in graph form using MATLAB. The characteristics of the sound absorption coefficient for each coir fibre ratio were discussed based on the range of frequency used. For the specimen with higher fibre ratio, it had a higher value of alpha, α compared to the lower fibre ratio. In conclusion, the specimen with the highest amount of fibre ratio has better sound absorption coefficient which the value is 0.98 compared to the specimen with lowest fibre content which is 0.3. Thus, higher fibre content is more suitable to be used as a noise level reducer.
format Article
author Shuib, Solehuddin
Yahya, Muhd Azman
Abdullah, Abdul Hakim
Kamaruddin, Nur Syafiqah
author_facet Shuib, Solehuddin
Yahya, Muhd Azman
Abdullah, Abdul Hakim
Kamaruddin, Nur Syafiqah
author_sort Shuib, Solehuddin
title Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
title_short Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
title_full Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
title_fullStr Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
title_full_unstemmed Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.]
title_sort sound absorption coefficient of coir fibre with poly-lactic acid (pla) / solehuddin shuib ... [et al.]
publisher Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
publishDate 2018
url http://ir.uitm.edu.my/id/eprint/40588/1/40588.pdf
http://ir.uitm.edu.my/id/eprint/40588/
_version_ 1690374261151105024
score 13.251813

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