Study on correlation of sound absorption coefficient for automotive noise absorption panel material by using sabine method and Z{stroke}-octave method

Research output: Contribution to journalArticle

Abstract

This research aims to develop an alternative way, Z{stroke}-octave method in order to determine noise absorption coefficient for materials. Noise absorption coefficient, α is one of the parameter to verify material acoustic's characteristic. Coir fiber was choosen as the material for automotive absorption panel in this study with the experimental run on three different thickness. Reverberation time value was calculated from sabine formula by using the reverberation room method with the help of dBBati-32 measurement and processing software. Then, the coefficients value was carried out for each one third octave frequency begin with 125 Hz until 4000 Hz. Next,for Z{stroke}-octave method, the raw data captured by the dBBati-32 was transmitted to Matlab and an analysis have been carried out to compute the values. Finally the noise absorption coefficient value from Sabine method, have been evaluated and compared with the value obtained from the Zoctave method to find the correlation between them. From the result, an alternative way to determine noise absorption coeeficient was productively develop. Some of the advantages using the Z{stroke}-octave method as one of the approach to represent noise absorption coefficient were offering less usage of equipment, time and step to complete comparing with the sabine method.

Original languageEnglish
Pages (from-to)640-643
Number of pages4
JournalInternational Review of Mechanical Engineering
Volume6
Issue number3
Publication statusPublished - 2012

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Acoustic noise
Reverberation
Acoustic waves
Acoustics
Fibers
Processing

Keywords

  • Noise absorption coefficient
  • Sabine method
  • Z{stroke}-octave method

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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title = "Study on correlation of sound absorption coefficient for automotive noise absorption panel material by using sabine method and Z{stroke}-octave method",
abstract = "This research aims to develop an alternative way, Z{stroke}-octave method in order to determine noise absorption coefficient for materials. Noise absorption coefficient, α is one of the parameter to verify material acoustic's characteristic. Coir fiber was choosen as the material for automotive absorption panel in this study with the experimental run on three different thickness. Reverberation time value was calculated from sabine formula by using the reverberation room method with the help of dBBati-32 measurement and processing software. Then, the coefficients value was carried out for each one third octave frequency begin with 125 Hz until 4000 Hz. Next,for Z{stroke}-octave method, the raw data captured by the dBBati-32 was transmitted to Matlab and an analysis have been carried out to compute the values. Finally the noise absorption coefficient value from Sabine method, have been evaluated and compared with the value obtained from the Zoctave method to find the correlation between them. From the result, an alternative way to determine noise absorption coeeficient was productively develop. Some of the advantages using the Z{stroke}-octave method as one of the approach to represent noise absorption coefficient were offering less usage of equipment, time and step to complete comparing with the sabine method.",
keywords = "Noise absorption coefficient, Sabine method, Z{stroke}-octave method",
author = "{Mat Tahir}, {Mohd Faizal} and Nuawi, {Mohd. Zaki} and Rozli Zulkifli and Shahrum Abdullah and {Mohd Sabri}, {Mohd Anas}",
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language = "English",
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journal = "International Review of Mechanical Engineering",
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AU - Mat Tahir, Mohd Faizal

AU - Nuawi, Mohd. Zaki

AU - Zulkifli, Rozli

AU - Abdullah, Shahrum

AU - Mohd Sabri, Mohd Anas

PY - 2012

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N2 - This research aims to develop an alternative way, Z{stroke}-octave method in order to determine noise absorption coefficient for materials. Noise absorption coefficient, α is one of the parameter to verify material acoustic's characteristic. Coir fiber was choosen as the material for automotive absorption panel in this study with the experimental run on three different thickness. Reverberation time value was calculated from sabine formula by using the reverberation room method with the help of dBBati-32 measurement and processing software. Then, the coefficients value was carried out for each one third octave frequency begin with 125 Hz until 4000 Hz. Next,for Z{stroke}-octave method, the raw data captured by the dBBati-32 was transmitted to Matlab and an analysis have been carried out to compute the values. Finally the noise absorption coefficient value from Sabine method, have been evaluated and compared with the value obtained from the Zoctave method to find the correlation between them. From the result, an alternative way to determine noise absorption coeeficient was productively develop. Some of the advantages using the Z{stroke}-octave method as one of the approach to represent noise absorption coefficient were offering less usage of equipment, time and step to complete comparing with the sabine method.

AB - This research aims to develop an alternative way, Z{stroke}-octave method in order to determine noise absorption coefficient for materials. Noise absorption coefficient, α is one of the parameter to verify material acoustic's characteristic. Coir fiber was choosen as the material for automotive absorption panel in this study with the experimental run on three different thickness. Reverberation time value was calculated from sabine formula by using the reverberation room method with the help of dBBati-32 measurement and processing software. Then, the coefficients value was carried out for each one third octave frequency begin with 125 Hz until 4000 Hz. Next,for Z{stroke}-octave method, the raw data captured by the dBBati-32 was transmitted to Matlab and an analysis have been carried out to compute the values. Finally the noise absorption coefficient value from Sabine method, have been evaluated and compared with the value obtained from the Zoctave method to find the correlation between them. From the result, an alternative way to determine noise absorption coeeficient was productively develop. Some of the advantages using the Z{stroke}-octave method as one of the approach to represent noise absorption coefficient were offering less usage of equipment, time and step to complete comparing with the sabine method.

KW - Noise absorption coefficient

KW - Sabine method

KW - Z{stroke}-octave method

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