Effects of compression on the sound absorption of fibrous

Bernard Castagnede; Achour Akninen; Achour Brouard; Viggo Tarnow

Effects of compression on the sound absorption of fibrous

Bernard Castagnede
, Achour Akninen
, Achour Brouard
, Viggo Tarnow

Université Nantes Angers Le Mans

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

During the compression of a fibrous mat, it is well known that the absorption properties are decreasing. In order to predict this change, some heuristic formulae are proposed which take into account the modifications of the physical parameters(porosity, resistivity, tortousity and shappe factors) which enter in the standard "equivalent fluid" model. Numerical predictions are then discussed and compared to experimental data obtained on a fibrous material(uncompressed and the compressed) used in automotive industry.

Original language	English
Journal	Applied Acoustics
Volume	61
Pages (from-to)	173-182
ISSN	0003-682X
Publication status	Published - 2000

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title = "Effects of compression on the sound absorption of fibrous",

abstract = "During the compression of a fibrous mat, it is well known that the absorption properties are decreasing. In order to predict this change, some heuristic formulae are proposed which take into account the modifications of the physical parameters(porosity, resistivity, tortousity and shappe factors) which enter in the standard {"}equivalent fluid{"} model. Numerical predictions are then discussed and compared to experimental data obtained on a fibrous material(uncompressed and the compressed) used in automotive industry.",

author = "Bernard Castagnede and Achour Akninen and Achour Brouard and Viggo Tarnow",

year = "2000",

language = "English",

volume = "61",

pages = "173--182",

journal = "Applied Acoustics",

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TY - JOUR

T1 - Effects of compression on the sound absorption of fibrous

AU - Castagnede, Bernard

AU - Akninen, Achour

AU - Brouard, Achour

AU - Tarnow, Viggo

PY - 2000

Y1 - 2000

N2 - During the compression of a fibrous mat, it is well known that the absorption properties are decreasing. In order to predict this change, some heuristic formulae are proposed which take into account the modifications of the physical parameters(porosity, resistivity, tortousity and shappe factors) which enter in the standard "equivalent fluid" model. Numerical predictions are then discussed and compared to experimental data obtained on a fibrous material(uncompressed and the compressed) used in automotive industry.

AB - During the compression of a fibrous mat, it is well known that the absorption properties are decreasing. In order to predict this change, some heuristic formulae are proposed which take into account the modifications of the physical parameters(porosity, resistivity, tortousity and shappe factors) which enter in the standard "equivalent fluid" model. Numerical predictions are then discussed and compared to experimental data obtained on a fibrous material(uncompressed and the compressed) used in automotive industry.

M3 - Journal article

SN - 0003-682X

VL - 61

SP - 173

EP - 182

JO - Applied Acoustics

JF - Applied Acoustics

ER -

Effects of compression on the sound absorption of fibrous

Abstract

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