Experimental validation of a modelling approach to predict sound absorption for porous asphalt roads

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

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

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Abstract

Tyre-road noise is a serious problem. One of the parameters to reduce the noise radiation is the sound absorption coefficient of the road, which is (partly) determined by properties such as the porosity of the road, the size and shape of the stones. In this study, a novel `hybrid' (analytical/numerical) model is used to predict the three-dimensional sound field in and above porous structures -- modelled as rigid granular structures -- and to predict the absorption coefficient for oblique incident sound waves. In this modelling approach, the air inside the pores of the structure is considered, including viscothermal effects in the pores and scattering of the sound waves due to the, assumed, rigid granular structure, representing the pavement. In this paper, the validation of the hybrid (analytical/numerical) modelling approach with impedance tube measurements for normal incident sound waves is described for two three-dimensional configurations. It is concluded that this novel hybrid modelling approach has been validated with good results for normal incident plane waves.
Original languageEnglish
Title of host publicationPROCEEDINGS OF ISMA2016 INCLUDING USD2016
Pages47-60
Publication statusPublished - 19 Sep 2016
Event27th International Conference on Noise and Vibration Engineering, ISMA 2016 - Heverlee, Belgium
Duration: 19 Sep 201621 Sep 2016
Conference number: 27
http://past.isma-isaac.be/isma2016/

Conference

Conference27th International Conference on Noise and Vibration Engineering, ISMA 2016
Abbreviated titleISMA
CountryBelgium
CityHeverlee
Period19/09/1621/09/16
Internet address

Fingerprint

asphalt
sound transmission
sound waves
roads
porosity
absorptivity
electromagnetic noise
pavements
tires
sound fields
plane waves
impedance
rocks
tubes
air
configurations
scattering

Keywords

  • IR-102226
  • METIS-319055

Cite this

@inproceedings{70c0ef57a3f544bbb84050356f163387,
title = "Experimental validation of a modelling approach to predict sound absorption for porous asphalt roads",
abstract = "Tyre-road noise is a serious problem. One of the parameters to reduce the noise radiation is the sound absorption coefficient of the road, which is (partly) determined by properties such as the porosity of the road, the size and shape of the stones. In this study, a novel `hybrid' (analytical/numerical) model is used to predict the three-dimensional sound field in and above porous structures -- modelled as rigid granular structures -- and to predict the absorption coefficient for oblique incident sound waves. In this modelling approach, the air inside the pores of the structure is considered, including viscothermal effects in the pores and scattering of the sound waves due to the, assumed, rigid granular structure, representing the pavement. In this paper, the validation of the hybrid (analytical/numerical) modelling approach with impedance tube measurements for normal incident sound waves is described for two three-dimensional configurations. It is concluded that this novel hybrid modelling approach has been validated with good results for normal incident plane waves.",
keywords = "IR-102226, METIS-319055",
author = "Marieke Bezemer-Krijnen and Wijnant, {Ysbrand H.} and {de Boer}, Andries",
year = "2016",
month = "9",
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language = "English",
pages = "47--60",
booktitle = "PROCEEDINGS OF ISMA2016 INCLUDING USD2016",

}

Bezemer-Krijnen, M, Wijnant, YH & de Boer, A 2016, Experimental validation of a modelling approach to predict sound absorption for porous asphalt roads. in PROCEEDINGS OF ISMA2016 INCLUDING USD2016. pp. 47-60, 27th International Conference on Noise and Vibration Engineering, ISMA 2016, Heverlee, Belgium, 19/09/16.

Experimental validation of a modelling approach to predict sound absorption for porous asphalt roads. / Bezemer-Krijnen, Marieke; Wijnant, Ysbrand H.; de Boer, Andries.

PROCEEDINGS OF ISMA2016 INCLUDING USD2016. 2016. p. 47-60.

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

TY - GEN

T1 - Experimental validation of a modelling approach to predict sound absorption for porous asphalt roads

AU - Bezemer-Krijnen, Marieke

AU - Wijnant, Ysbrand H.

AU - de Boer, Andries

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N2 - Tyre-road noise is a serious problem. One of the parameters to reduce the noise radiation is the sound absorption coefficient of the road, which is (partly) determined by properties such as the porosity of the road, the size and shape of the stones. In this study, a novel `hybrid' (analytical/numerical) model is used to predict the three-dimensional sound field in and above porous structures -- modelled as rigid granular structures -- and to predict the absorption coefficient for oblique incident sound waves. In this modelling approach, the air inside the pores of the structure is considered, including viscothermal effects in the pores and scattering of the sound waves due to the, assumed, rigid granular structure, representing the pavement. In this paper, the validation of the hybrid (analytical/numerical) modelling approach with impedance tube measurements for normal incident sound waves is described for two three-dimensional configurations. It is concluded that this novel hybrid modelling approach has been validated with good results for normal incident plane waves.

AB - Tyre-road noise is a serious problem. One of the parameters to reduce the noise radiation is the sound absorption coefficient of the road, which is (partly) determined by properties such as the porosity of the road, the size and shape of the stones. In this study, a novel `hybrid' (analytical/numerical) model is used to predict the three-dimensional sound field in and above porous structures -- modelled as rigid granular structures -- and to predict the absorption coefficient for oblique incident sound waves. In this modelling approach, the air inside the pores of the structure is considered, including viscothermal effects in the pores and scattering of the sound waves due to the, assumed, rigid granular structure, representing the pavement. In this paper, the validation of the hybrid (analytical/numerical) modelling approach with impedance tube measurements for normal incident sound waves is described for two three-dimensional configurations. It is concluded that this novel hybrid modelling approach has been validated with good results for normal incident plane waves.

KW - IR-102226

KW - METIS-319055

M3 - Conference contribution

SP - 47

EP - 60

BT - PROCEEDINGS OF ISMA2016 INCLUDING USD2016

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