Revising the EN12354 method of calculating the flanking sound reduction index of lightweight building elements (2012)
Type of ContentConference Contributions - Published
PublisherUniversity of Canterbury. Mechanical Engineering
There is great interest worldwide in applying the standard, EN12354 to predict the flanking sound reduction index to lightweight building elements. However, there are several problems which must be overcome before the prediction method can be accurately applied to lightweight building elements. One problem is the prediction of the resonant component of the sound reduction index of the elements under investigation. As part of the work of COST Action FP0702, several methods of calculating the resonant component have been proposed and evaluated. The evaluation was conducted by comparing the predicted flanking sound reduction indices which were calculated using the different methods of calculating the resonant sound reduction index to measured values for a series of elements. The elements included single, homogeneous elements and double leaf elements. This paper presents the details of that evaluation. A correction factor based on the radiation efficiencies of the elements which was proposed by CSTB is recommended.
CitationMahn, J., Pearse, J. (2012) Revising the EN12354 method of calculating the flanking sound reduction index of lightweight building elements. Hong Kong: Acoustics, 13-18 May 2012. Journal of the Acoustical Society of America, 131, 4, 3319.
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Keywordsflanking; lightweight; building
ANZSRC Fields of Research40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
40 - Engineering::4017 - Mechanical engineering::401701 - Acoustics and noise control (excl. architectural acoustics)
Showing items related by title, author, creator and subject.
Reciprocity and the Prediction of the Apparent Sound Reduction Index for Lightweight Structures According to EN12354 Mahn, J.; Pearse, J. (University of Canterbury. Mechanical Engineering, 2008)In the derivation of the equation for the flanking sound reduction index for EN12354-1, reciprocity was used to remove the radiation efficiencies of the elements from the calculations. The exclusion of the radiation efficiencies ...
Investigation of the Separation of the Resonant Sound Reduction Index from Measured Data for use in EN 12354-1 Mahn, J.; Pearse, J. (University of Canterbury. Mechanical Engineering, 2007)The application of EN 12354-1 to lightweight construction materials requires that the resonant component of the sound reduction index be separated from the reduction index measured according to ISO 140-3 or ISO 15186-1 ...
Mahn, J.; Pearse, J. (University of Canterbury. Mechanical Engineering, 2012)The application of the EN12354 prediction method to lightweight building constructions which typically have critical frequencies in or above the frequency range of interest requires the estimation of the resonant sound ...