Theoretical assessment of sound absorption coefficient for anisotropic nonwovens

Theoretical assessment of sound absorption coefficient for anisotropic nonwovens

The anisotropy factor as a function of fiber arrangement, fiber fineness and sample thickness has been derived from the theories of soundwave transformation due to phase changing. The sound absorption coefficient of the anisotropic fibrous material is then theoretically calculated. The fibrous mater...

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Main Author: Klara Kalinova
Format: Article
Language:English
Published: HBKU Press 2012-03-01
Series:QScience Connect
Online Access:http://www.qscience.com/doi/pdf/10.5339/connect.2013.3
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spelling doaj-bdd791d058ef4801a585914e90a9ccc12020-11-24T23:37:25ZengHBKU PressQScience Connect2223-506X2012-03-012012110.5339/connect.2013.3Theoretical assessment of sound absorption coefficient for anisotropic nonwovensKlara KalinovaThe anisotropy factor as a function of fiber arrangement, fiber fineness and sample thickness has been derived from the theories of soundwave transformation due to phase changing. The sound absorption coefficient of the anisotropic fibrous material is then theoretically calculated. The fibrous materials were prepared so that the fibers are arranged parallel (perpendicularly laid fiber web called STRUTO technology) in the direction of soundwave propagation or perpendicularly (longitudinally laid fiber web) to the direction of sound propagation. The sound absorption coefficient was measured due to the Impedance tube. The theoretical results are in good agreement with experimental findings. http://www.qscience.com/doi/pdf/10.5339/connect.2013.3
collection DOAJ
language English
format Article
sources DOAJ
author Klara Kalinova
spellingShingle Klara Kalinova
Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
QScience Connect
author_facet Klara Kalinova
author_sort Klara Kalinova
title Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
title_short Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
title_full Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
title_fullStr Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
title_full_unstemmed Theoretical assessment of sound absorption coefficient for anisotropic nonwovens
title_sort theoretical assessment of sound absorption coefficient for anisotropic nonwovens
publisher HBKU Press
series QScience Connect
issn 2223-506X
publishDate 2012-03-01
description The anisotropy factor as a function of fiber arrangement, fiber fineness and sample thickness has been derived from the theories of soundwave transformation due to phase changing. The sound absorption coefficient of the anisotropic fibrous material is then theoretically calculated. The fibrous materials were prepared so that the fibers are arranged parallel (perpendicularly laid fiber web called STRUTO technology) in the direction of soundwave propagation or perpendicularly (longitudinally laid fiber web) to the direction of sound propagation. The sound absorption coefficient was measured due to the Impedance tube. The theoretical results are in good agreement with experimental findings.
url http://www.qscience.com/doi/pdf/10.5339/connect.2013.3
work_keys_str_mv AT klarakalinova theoreticalassessmentofsoundabsorptioncoefficientforanisotropicnonwovens
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