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In situ measured flanking transmission in light weight timber houses with elastic flanking isolators: Part II
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Number of Authors: 2
2016 (English)In: InterNoise 2016: 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future / [ed] von Estorff O., Kropp W., Schulte-Fortkamp B, German Acoustical Society , 2016, 3772-3781 p.Conference paper (Refereed)
Abstract [en]

There is a strong trend to industrially produce multi-storey light weight timber based houses. The concept allows the buildings to be manufactured to a more or less prefabricated extent. Most common types are volume/room modules or flat wall and floor modules. When assembling the modules at the building site, elastomer isolators are used in several constructions to reduce flanking transmission. The sound insulation demands in the Nordic countries are relatively high and therefore the flanking transmission must be well controlled, where elastomer isolators are an established alternative. Decoupled shielding wall elements is another. There are though no working studies or mathematical models of the performance of these isolators. They are treated as simple mass-springs systems that operate vertically, i.e. one degree of freedom. In this paper there are analyses of an expanded set of experimental data of the structure borne sound isolating performance of elastomer isolators, which are separating an excited floor from receiving walls. This part II study now includes all in all 9 buildings. The isolation performance dependence on structure type is analyzed. An empirically based regression model of the vibration level difference is derived. The model is based on measurements of 8 elastomer field installations, which are compared to an installation without elastomers. A goal is that the data can be used for input in future SEN prediction models for modeling of the flanking transmission part of sound insulation

Place, publisher, year, edition, pages
German Acoustical Society , 2016. 3772-3781 p.
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Acoustics
Identifiers
URN: urn:nbn:se:ltu:diva-60710ScopusID: 2-s2.0-84994632122OAI: oai:DiVA.org:ltu-60710DiVA: diva2:1050007
Conference
45th International Congress and Exposition on Noise Control Engineering,Hamburg, 21-24 August 2016
Available from: 2016-11-28 Created: 2016-11-28 Last updated: 2016-11-28Bibliographically approved

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