Sound absorption properties of a perforated plate and membrane construction

Anders C Nilsson, Birgit Rasmussen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

1 Citation (Scopus)

Resumé

A prediction model describing the absorption coefficient of a plate and membrane system is derived. Measurements of absorption coefficients in an impedance tube and in a reverberation chamber are carried out for various constructions. Predicted and measured results are compared. The prediction model is found to give satisfactory results. It is found that the absorption is mainly determined by viscous losses induced in the space between plate and membrane. The performance of the absorbent is very sensitive to changes of distance between plate and membrane.
OriginalsprogEngelsk
TidsskriftAcustica United with Acta Acustica
Vol/bind57
Udgave nummer3
ISSN1610-1928
StatusUdgivet - 1985
Udgivet eksterntJa

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perforated plates
sound transmission
membranes
absorptivity
reverberation chambers
absorbents
predictions
impedance
tubes
Membrane
Sound
Prediction

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abstract = "A prediction model describing the absorption coefficient of a plate and membrane system is derived. Measurements of absorption coefficients in an impedance tube and in a reverberation chamber are carried out for various constructions. Predicted and measured results are compared. The prediction model is found to give satisfactory results. It is found that the absorption is mainly determined by viscous losses induced in the space between plate and membrane. The performance of the absorbent is very sensitive to changes of distance between plate and membrane.",
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Sound absorption properties of a perforated plate and membrane construction. / Nilsson, Anders C; Rasmussen, Birgit.

I: Acustica United with Acta Acustica, Bind 57, Nr. 3, 1985.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Sound absorption properties of a perforated plate and membrane construction

AU - Nilsson, Anders C

AU - Rasmussen, Birgit

N1 - pp. 139-148(10) ISSN 1610-1928 (Print)

PY - 1985

Y1 - 1985

N2 - A prediction model describing the absorption coefficient of a plate and membrane system is derived. Measurements of absorption coefficients in an impedance tube and in a reverberation chamber are carried out for various constructions. Predicted and measured results are compared. The prediction model is found to give satisfactory results. It is found that the absorption is mainly determined by viscous losses induced in the space between plate and membrane. The performance of the absorbent is very sensitive to changes of distance between plate and membrane.

AB - A prediction model describing the absorption coefficient of a plate and membrane system is derived. Measurements of absorption coefficients in an impedance tube and in a reverberation chamber are carried out for various constructions. Predicted and measured results are compared. The prediction model is found to give satisfactory results. It is found that the absorption is mainly determined by viscous losses induced in the space between plate and membrane. The performance of the absorbent is very sensitive to changes of distance between plate and membrane.

M3 - Journal article

VL - 57

JO - Acustica United with Acta Acustica

JF - Acustica United with Acta Acustica

SN - 1610-1928

IS - 3

ER -