QUANTIFICATION OF STRUCTURE-BORNE SOUND TRANSMISSION IN BUILDINGS

被引：0
|
作者：
Magalhaes, Max de Castro [1 ]
机构：
[1] Univ Fed Minas Gerais, Sch Engn, Dept Struct Engn, Av Antonio Carlos 6627,Bl 1 Sl 4103, Belo Horizonte, MG, Brazil
来源：
PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION | 2010年
关键词：
ACOUSTIC RADIATION;
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The aim of this paper is to predict the sound power radiated by a floating floor system, commonly used in buildings, using a modal model. A modal model using fluid-structure interaction and the Jinc function approach was implemented for the calculation of the sound power radiated into a receiving room. The model predicted the sound power radiated from the direct wave field in the vicinity of the driving point, as well as the sound power radiated from the reverberant wave field. The result is presented for a simply-supported floor. The analysis has highlighted the main physical characteristics of the sound radiation mechanism. At low frequencies, the power radiated by the near field of the point force has been found to make significant contribution to the total power radiated.
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页数：7
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