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Measurements of sound reduction index with intensity technique. Nordtest project 746-88.
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Prediction of the sound reduction index: a modal approach
Applied Acoustics, 2003Abstract Different methods for the calculation of the sound reduction index using modal analysis are described. The calculations use two steps: a vibratory study to determine the transverse displacement of the plate and a study of radiation. Orthotropic plates are studied in particular and the resulting calculation algorithm has been programmed ...
Thomas Buzzi +3 more
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Prediction of sound reduction index of plenum window by the surface impedance approach
Applied Acoustics, 2021Abstract The paper predicted the sound reduction indices (SRIs) of plenum windows with various configurations by the surface impedance approach (SIA). Assuming that the glass panes of plenum windows are rigid, two spaces connected through a plenum window can be taken as a three-coupled space. In terms of a multiply connected space, the SIA enables to
Liangfen Du, Siu-Kit Lau, Siew Eang Lee
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Prediction of sound reduction index of double sandwich panel
Applied Acoustics, 2015Abstract This study deals with the prediction model for SRI of double sandwich panels widely used in living quarters of ships and offshore installations. The proposed prediction model is obtained from the modification of the conventional models based on empirical measurements.
Sungmok Hwang +3 more
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2013 21st Telecommunications Forum Telfor (TELFOR), 2013
EN 12354 standards describe models for calculation of sound insulation in buildings. EN 12354-1 defines a model for airborne sound insulation, while EN 12354-2 describes the calculation procedure for impact sound insulation. Although the calculated value of sound insulation in both cases depends mostly on the insulation properties of the separating ...
Drasko Masovic +2 more
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EN 12354 standards describe models for calculation of sound insulation in buildings. EN 12354-1 defines a model for airborne sound insulation, while EN 12354-2 describes the calculation procedure for impact sound insulation. Although the calculated value of sound insulation in both cases depends mostly on the insulation properties of the separating ...
Drasko Masovic +2 more
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Sound intensity and sound reduction index
Applied Acoustics, 1993Abstract The sound intensity technique has been tested on sound insulation measurements under laboratory conditions. A detailed measurement and evaluation procedure is proposed. About 30 different measurements have been carried out in three different laboratories to estimate the precision of this intensity method when compared with the traditional ...
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Theoretical Determination of Sound Reduction Index of Simple Walls on Various Material Bases
Applied Mechanics and Materials, 2016The contribution deals with a comparison of measured and calculated values of sound reduction index R (dB) and weighted sound reduction index Rw (dB) of simple walls from various materials. In this way it verifies the exactness of a modified calculation-graphic method according to Watters and an appropriateness of its application for simple walls from ...
Monika Pavčeková, Rastislav Menďan
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Building Acoustics, 2019
Nowadays, lightweight building structures are widely used by the construction industry as a more natural and cost-effective method. The purpose of this study is to compare between sound pressure level and vibration velocity method for sound reduction index determination for single- and double-leaf gypsum board partitions.
AM Shehap +2 more
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Nowadays, lightweight building structures are widely used by the construction industry as a more natural and cost-effective method. The purpose of this study is to compare between sound pressure level and vibration velocity method for sound reduction index determination for single- and double-leaf gypsum board partitions.
AM Shehap +2 more
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Effect of size on measurements of the sound reduction index of a window or a pane
Applied Acoustics, 1983Abstract The variation in the sound reduction index as a function of the size of a test specimen was investigated. Five different sizes of one particular hinged window were tested. In addition, tests were carried out with a sound insulating double glazing and a laminated pane mounted in normal wooden frames.
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Applied Acoustics, 2016
Abstract Precast panels are widely used for the construction of large industrial buildings, trade centres and apartment houses. These buildings have to comply with prescribed noise and thermal requirements, so the possibility to accurately estimate the sound reduction index of such panels is of vital importance.
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Abstract Precast panels are widely used for the construction of large industrial buildings, trade centres and apartment houses. These buildings have to comply with prescribed noise and thermal requirements, so the possibility to accurately estimate the sound reduction index of such panels is of vital importance.
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