Reduction of rain noise from Ethylene/TetraFluoroEthylene membrane structures

Authors: Masahiro Toyoda, Daiji Takahashi

Abstract:
Ethylene/TetraFluoroEthylene (ETFE) is a kind of fluororesin, which is recently used for outer skins of many sports facilities because of its weatherability and lightweight properties. Herein, rain noise from an air-cushion-membrane structure with ETFE films is investigated. An analytical prediction model is proposed and the model is verified by the laboratory experiment based on ISO 140-18. To control the noise, some samples with nonwoven fabrics and gel sheets were tested. The theoretical and experimental results show the possibility of attenuating the noise by adding absorptive layers and/or damping materials.

Keywords:
ETFE
Membrane structure
Rain noise
Sound radiation
Sound transmission

Published in: Applied Acoustics (Volume 74, Issue 12,  December  2013)

Publisher: Elsevier

ISSN Information: 0003-682X

Reduction of rain noise from Ethylene/TetraFluoroEthylene membrane structures

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