Experimental sound insulation improvement in multi-layered sandwich, partitions

被引:0
|
作者
Uris, A [1 ]
Estelles, H [1 ]
机构
[1] Univ Politecn Valencia, ETSI Telecommun, Dept Fis Aplicada, Valencia 46022, Spain
关键词
D O I
10.3397/1.2839687
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Estimated and measured sound transmission loss data are presented in this paper, which documents the benefits of adding layers of polyurethane foam to sandwich partitions built with an expanded polystyrene core. It is shown that the add-on treatment avoids the effects of dilatational resonance and improves transmission loss at the critical frequency. The improved sound transmission loss is obtained in expanded polystyrene partitions without a significant increase in thickness. (C) 2002 Institute of Noise Control Engineering.
引用
收藏
页码:157 / 159
页数:3
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