Airborne sound transmission loss characteristics of woodframe construction

Rudder, F

doi:10.2737/fpl-gtr-43

Cited by 8 publications

(13 citation statements)

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“…The study found that the theory of Rudder (1985) produced no positive values. The theories of Leppington et al (1987) and Lee and Ih (2004) produced positive values at 100 to 160 Hz and 315 Hz.…”

Section: The En12354 Prediction Methodsmentioning

confidence: 81%

“…It is a practical approximation to the particular integral of the bending wave partial differential equation of a single leaf homogeneous isotropic wall below the critical frequency which is more appropriate to use in this situation than Sewell's approximate correction factor (Sewell, 1970). It has no relationship to the particular integral at and above the critical frequency and is different from the approximation used by Sewell (1970), Rudder (1985), Leppington et al (1987), and Lee and Ih (2004) below the critical frequency. These authors use Sewell's (Sewell, 1970) approximate correction factor of…”

Section: The En12354 Prediction Methodsmentioning

confidence: 96%

“…The critical frequency was in the 8 kHz band and the surface density was 3.2 kg/m 2 . The dimensions of the panel were 0.946 m Â 1.545 m. Rudder's (1985) theory produced no positive values. The theories of Leppington et al (1987), Lee and Ih (2004), and Sewell (1970) produced positive values at 100 Hz.…”

Section: The En12354 Prediction Methodsmentioning

confidence: 99%

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The prediction of flanking sound transmission below the critical frequency

Davy

Mahn

Guigou‐Carter

et al. 2012

The Journal of the Acoustical Society of America

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Although reliable methods exist to predict the apparent sound reduction index of heavy, homogeneous isotopic building constructions, these methods are not appropriate for use with lightweight building constructions which typically have critical frequencies in or above the frequency range of interest. Three main methods have been proposed for extending the prediction of flanking sound transmission to frequencies below the critical frequency. The first method is the direct prediction which draws on a database of measurements of the flanking transmission of individual flanking paths. The second method would be a modification of the method in existing standards. This method requires the calculation of the resonant sound transmission factors. However, most of the approaches proposed to calculate the resonant sound transmission factor work only for the case of single leaf homogeneous isotropic building elements and therefore are not readily applicable to complex building elements. The third method is the measurement or prediction of the resonant radiation efficiency and the airborne diffuse field excited radiation efficiency which includes both the resonant and the non-resonant radiation efficiencies. The third method can currently deal with complex building elements if the radiation efficiencies can be measured or predicted. This paper examines these prediction methods.

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Section: The En12354 Prediction Methodsmentioning

confidence: 81%

Section: The En12354 Prediction Methodsmentioning

confidence: 96%

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The prediction of flanking sound transmission below the critical frequency

Davy

Mahn

Guigou‐Carter

et al. 2012

The Journal of the Acoustical Society of America

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“…Solamente se han considerado referencias con mediciones en bandas de tercio de octava obtenidas mediante laboratorio según norma ISO 140-3 [23]- [26]. Los materiales utilizados con sus respectivas características físicas se muestran en la Tabla 1.…”

Section: Resultsunclassified

“…El objetivo de este trabajo de investigación es evaluar el modelo de predicción propuesto por los autores mediante una comparativa con el programa INSUL versión 9 y ensayos en condiciones de laboratorio disponibles en la bibliografía [23]- [26].…”

Section: Introductionunclassified

Modelo de predicción de aislamiento acústico para paneles simples y multicapa

Benasco

Bender

Pepino

2019

Elek.

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Los modelos de predicción de aislamiento acústico son una herramienta importante a la hora de diseñar los elementos constructivos que integran una obra de construcción. Existen materiales homogéneos e isotrópicos de diferentes espesores como el hormigón o el vidrio, entre otros. En muchos casos para alcanzar el aislamiento acústico requerido se suele superponer varias capas del mismo o diferentes materiales para aumentar la masa superficial del sistema. En esta investigación se presenta un modelo basado en diferentes aproximaciones según el rango de frecuencias para calcular el índice de reducción sonora R en el caso de paneles simples y paneles multicapa unidos de forma puntual, como puede ser mediante tornillos o clavos. Se evalúa el desempeño del modelo mediante una comparativa entre las predicciones obtenidas utilizando el programa comercial INSUL y las obtenidas con el modelo propuesto. A su vez, se contrastan los valores con mediciones en laboratorio realizadas de acuerdo a la norma ISO 140-3. El estudio considera paneles agrupados en dos categorías de materiales: livianos y pesados. Se examinan las pérdidas por transmisión en bandas de tercio de octava, los índices de reducción sonora ponderados y los términos de adaptación espectral Rw(C,Ctr). Estadísticamente, los resultados muestran que el modelo propuesto se adapta a los ensayos disponibles, tanto para paneles simples como para multicapa.

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