Estimation of Acoustical Performance of Floating Floors from Dynamic Stiffness of Resilient Layers

Schiavi, Alessandro; Belli, Andrea Pavoni; Russo, Francesco

doi:10.1260/1351010054037938

Cited by 34 publications

(17 citation statements)

References 8 publications

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“…In the case of resilient materials of floating floor structures, a load applied on the upper surface can lead to the destruction of fibrous tissue, reduction in thickness, and a gradual increase in dynamic stiffness, which, in turn, causes a change in the resonant frequency, thus causing variations in the estimates of impact sound insulation performance (Schiavi et al, 2005). Schiavi et al proposed a formula for the dynamic stiffness by taking into account the thickness deformation as the deformation of materials affects dynamic stiffness (Schiavi et al, 2010).…”

Section: Dynamic Stiffnessmentioning

confidence: 99%

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Kim¹,

Yeon²,

Yang³

et al. 2015

Archives of Acoustics

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This study investigates several factors that have not been specified in the standard for dynamic stiffness, compressibility, and long-term deformation; these factors can be used to evaluate the acoustic and physical performances of resilient materials. The study is intended to provide basic data for deriving the factors that need to be additionally reviewed through the standards. Since magnitude of dynamic stiffness changes with an increase in loading time, it is necessary to examine the setting of the loading time for a load plate under test conditions. Samples of size 300×300 mm, rather than 200×200 mm, yielded more reliable results for compressibility measurement. Since the test to infer long-term deformation of resilient materials after a period of 10 years in some samples showed variation characteristics different from those specified in the standards, it is recommended that the test method should be reviewed through ongoing research.

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Section: Dynamic Stiffnessmentioning

confidence: 99%

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Kim¹,

Yeon²,

Yang³

et al. 2015

Archives of Acoustics

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“…The improvement of the impact-noise isolation of a structural floor is usually studied adding a floating floor with a resilient layer under a rigid floating slab [6][7]. One of the parameters that determines the performance of these floors is the dynamic stiffness of the resilient material [8][9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of acoustic and dynamic behaviour of ethylene vinyl acetate panels

Nadal

Alcaraz

Juliá

et al. 2019

Materialwissenschaft Werkst

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Ethylene vinyl acetate panels, with high vinyl acetate content and a closed‐cell structure, were studied through various experimental techniques as a first approach to evaluate the vibrational and acoustic behaviour of ethylene vinyl acetate panels for building applications. Test specimens, with a variety of densities and thicknesses were tested to evaluate the influence of these two parameters on acoustic impedance, sound transmission loss, dynamic stiffness and attenuation of vibrations. The results obtained shows sound transmission loss values for frequencies up to 2500 Hz with a maximum of about 63.7 dB, the dynamic stiffness results presented a wide range, with a maximum value of 350 MN/m3 and a minimum value of 23.3 MN/m3.On the other hand the lack of pore in the surface produce a high acoustic impedance. It can be concluded that ethylene vinyl acetate presents appropriate characteristics, mainly as an acoustic and vibration isolating material, for floorings and light partitions.

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“…al. [12] investigated the relationship between the change of the dynamic stiffness coefficient and the floor impact sound reduction level for resilient materials against floor impact sound, including glass wool.…”

Section: Introduction *mentioning

confidence: 99%

Experimental Study on the Comparison of the Material Properties of Glass Wool Used as Building Materials

Kim

Jeong

2014

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Artificial mineral fibers such as glass wool or stone wool are commonly used in building walls, ceilings and floors as a major insulation material for buildings. Among the material properties of building materials, thermal conductivity, the sound absorption coefficient, compressibility, and dynamic stiffness are regarded as important performance requirements since they directly affect the thermal and acoustic properties of the building. This study measured the changes of the thermal and acoustical performances of glass wool that was actually installed for a long time to the outer wall of a building as an insulation material through a comparison with recently produced glass wool. The results showed that the measured thermal conductivities of the old and the new specimens both rise with an increase of temperature, showing quite similar results in both specimens over temperature ranges of (0 -20) ºC. The noise reduction coefficient decreased by 0.1 in the old specimen and the difference of the compressibilities in both specimens was shown to be 7.32 mm. The dynamic stiffness of the old specimen was found to be 1.28 MN/m 3 higher than that of the new specimen.

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Estimation of Acoustical Performance of Floating Floors from Dynamic Stiffness of Resilient Layers

Cited by 34 publications

References 8 publications

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Influence of Loading Time of a Load Plate and Sample Size on the Measurement of Physical Properties of Resilient Materials

Evaluation of acoustic and dynamic behaviour of ethylene vinyl acetate panels

Experimental Study on the Comparison of the Material Properties of Glass Wool Used as Building Materials

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