The forced sound transmission of finite single leaf walls using a variational technique

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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The single wall is the simplest element of concern in building acoustics, but there still remain some open questions regarding the sound insulation of this simple case. The two main reasons for this are the effects on the excitation and sound radiation of the wall when it has a finite size, and the fact that the wave field in the wall is consisting of two types of waves, namely forced waves due to the exciting acoustic field, and free bending waves due to reflections in the boundary. The aim of the present paper is to derive simple analytical formulas for the forced part of the airborne sound insulation of a single homogeneous wall of finite size, using a variational technique based on the integral-differential equation of the fluid loaded wall. The so derived formulas are valid in the entire audible frequency range. The results are compared with full numerical calculations, measurements and alternative theory, with reasonable agreement
Original languageEnglish
JournalAcoustical Society of America. Journal
Issue number3
Pages (from-to)1482-1493
StatePublished - 2012
CitationsWeb of Science® Times Cited: 11
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ID: 10767846