On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves

Marieke Bezemer-Krijnen, Ysbrand H. Wijnant, Andries de Boer, Dirk Bekke

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
72 Downloads (Pure)

Abstract

A rolling tyre will radiate noise in all directions. However, conventional measurement techniques for the sound absorption of surfaces only give the absorption coefficient for normal incidence. In this paper, a measurement technique is described with which it is possible to perform in situ sound absorption measurements for oblique incidence. The measurements are performed with a small microphone array, the 8p-probe, and the theory is based on the local plane wave assumption. In this paper, an approach is proposed to determine whether a surface behaves as a locally reacting surface or a nonlocally reacting surface, which is an important characteristic for optimising asphalt pavements for noise reduction and for modelling techniques. Measurements at various angles of incidence are performed to demonstrate this approach as well as measurements of the absorption coefficient at normal incidence to validate the 8p-probe with impedance tube measurements.
Original languageEnglish
Title of host publicationInternoise 2014
EditorsJ. Davy, Ch. Don, T. McMinn, L. Dowsett, N. Broner, M. Burgess
Place of PublicationMelbourne
PublisherThe Australian Acoustical Society
Pages1-7(cd-rom)
ISBN (Print)978-0-909882-03-7
Publication statusPublished - 16 Nov 2014

Publication series

Name
PublisherThe Australian Acoustical Society

Fingerprint

asphalt
pavements
sound transmission
sound waves
absorptivity
incidence
tires
probes
microphones
noise reduction
plane waves
impedance
tubes

Keywords

  • METIS-304625
  • IR-93475

Cite this

Bezemer-Krijnen, M., Wijnant, Y. H., de Boer, A., & Bekke, D. (2014). On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves. In J. Davy, C. Don, T. McMinn, L. Dowsett, N. Broner, & M. Burgess (Eds.), Internoise 2014 (pp. 1-7(cd-rom)). Melbourne: The Australian Acoustical Society.
Bezemer-Krijnen, Marieke ; Wijnant, Ysbrand H. ; de Boer, Andries ; Bekke, Dirk. / On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves. Internoise 2014. editor / J. Davy ; Ch. Don ; T. McMinn ; L. Dowsett ; N. Broner ; M. Burgess. Melbourne : The Australian Acoustical Society, 2014. pp. 1-7(cd-rom)
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abstract = "A rolling tyre will radiate noise in all directions. However, conventional measurement techniques for the sound absorption of surfaces only give the absorption coefficient for normal incidence. In this paper, a measurement technique is described with which it is possible to perform in situ sound absorption measurements for oblique incidence. The measurements are performed with a small microphone array, the 8p-probe, and the theory is based on the local plane wave assumption. In this paper, an approach is proposed to determine whether a surface behaves as a locally reacting surface or a nonlocally reacting surface, which is an important characteristic for optimising asphalt pavements for noise reduction and for modelling techniques. Measurements at various angles of incidence are performed to demonstrate this approach as well as measurements of the absorption coefficient at normal incidence to validate the 8p-probe with impedance tube measurements.",
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Bezemer-Krijnen, M, Wijnant, YH, de Boer, A & Bekke, D 2014, On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves. in J Davy, C Don, T McMinn, L Dowsett, N Broner & M Burgess (eds), Internoise 2014. The Australian Acoustical Society, Melbourne, pp. 1-7(cd-rom).

On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves. / Bezemer-Krijnen, Marieke; Wijnant, Ysbrand H.; de Boer, Andries; Bekke, Dirk.

Internoise 2014. ed. / J. Davy; Ch. Don; T. McMinn; L. Dowsett; N. Broner; M. Burgess. Melbourne : The Australian Acoustical Society, 2014. p. 1-7(cd-rom).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - A rolling tyre will radiate noise in all directions. However, conventional measurement techniques for the sound absorption of surfaces only give the absorption coefficient for normal incidence. In this paper, a measurement technique is described with which it is possible to perform in situ sound absorption measurements for oblique incidence. The measurements are performed with a small microphone array, the 8p-probe, and the theory is based on the local plane wave assumption. In this paper, an approach is proposed to determine whether a surface behaves as a locally reacting surface or a nonlocally reacting surface, which is an important characteristic for optimising asphalt pavements for noise reduction and for modelling techniques. Measurements at various angles of incidence are performed to demonstrate this approach as well as measurements of the absorption coefficient at normal incidence to validate the 8p-probe with impedance tube measurements.

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Bezemer-Krijnen M, Wijnant YH, de Boer A, Bekke D. On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves. In Davy J, Don C, McMinn T, Dowsett L, Broner N, Burgess M, editors, Internoise 2014. Melbourne: The Australian Acoustical Society. 2014. p. 1-7(cd-rom)