Resilient mounting systems in buildings

Breeuwer, R.; Tukker, J.

doi:10.1016/0003-682x(76)90001-3

Cited by 13 publications

(2 citation statements)

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“…8 The international standard for measurement of resiliently mounted machines gives the free velocity. 9 Although the free velocity alone is not a sufficient measure of source strength, for resiliently mounted machines it can be used in combination with the spring stiffness of the mounts to give the contact forces.…”

Section: Vibration Activity Mobility and Structure-borne Powermentioning

confidence: 99%

Uncertainties in predicting structure-borne sound power input into buildings

Gibbs

2013

The Journal of the Acoustical Society of America

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There has been a steady development of methods of measurement and prediction of structure-borne noise in buildings, particularly over the last two decades. In proposing and evaluating these methods, a major consideration has been the likely trade-off between accuracy and simplicity. Structure-borne sound transmission is a more complicated process than airborne sound transmission, but practitioners seek methods of prediction for the former, which are as straightforward as for the latter. In this paper a description is given of a study of multi-contact sources in buildings. The study concentrates on measurement and calculation procedures for sources and calculation procedures for receiver structures, particularly lightweight building elements. Although the study is not exhaustive, the findings point to the limitations of simplified methods, specifically the uncertainties likely as a result of reducing the data sets and computational effort, and the discrepancies resulting from simplifying assumptions.

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Section: Vibration Activity Mobility and Structure-borne Powermentioning

confidence: 99%

Uncertainties in predicting structure-borne sound power input into buildings

Gibbs

2013

The Journal of the Acoustical Society of America

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“…This can be described as a conventional mass-spring system, where the mass is the floating slab and the spring is the resilient layer. The resilient layer possesses internal damping as well, and a mass-spring-damping model 16 is more appropriate, as shown in Figure 1. According to theory, [17][18] the improvement in impact sound isolation of a floating floor, as a function of the frequency, has a positive 30 dB/decade slope, from the resonance frequency, f res , of the mass-spring system (slab-resilient layer) (2) The natural resonance frequency of the floor is given by Hz, (3) where s' is the dynamic stiffness per unit area of the resilient layer (including the stiffness of the trapped air) (MN/m 3 ) and m' is the mass per unit area of the slab (kg/m 2 ).…”

Section: Theorymentioning

confidence: 99%

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

2005

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This paper describes a procedure for evaluating the reduction in impact sound pressure level of floating floors by measuring the apparent dynamic stiffness of the resilient layer, according to International Standard EN 29052-1. The impact sound pressure level experimental data, obtained according to International Standard UNI EN ISO 140-8, was compared with estimates obtained from dynamic stiffness measurements. Results confirm the effectiveness of the empirical model. Two questions are addressed. The first concerns the decrease in layer thickness over time. The second concerns the relationship between damping ratio and performance.

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Körperschallisolierung

Melzig-Thiel¹

VDI-Buch

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Resilient mounting systems in buildings

Cited by 13 publications

References 1 publication

Uncertainties in predicting structure-borne sound power input into buildings

Uncertainties in predicting structure-borne sound power input into buildings

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

Körperschallisolierung

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