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Title: An inverse force measurement method to determine the injected structure-borne sound power from an installation into a building element
Authors: Schevenels, Pieter ×
van der Linden, Peter J. G.
Vermeir, Gerrit #
Issue Date: 2010
Publisher: Multi-Science Publishing Co. Ltd.
Series Title: Building Acoustics vol:17 issue:3 pages:199-219
Abstract: In structure-borne sound problems in buildings, knowledge of the contact forces between vibrating equipment and a receiving element is often required. When multiplying these forces with the simultaneously measured velocities at the contact points of the equipment, the structure-borne sound power can be determined, which is the quantity governing the sound energy transfer from a source space to a receiving space. Measuring contact forces directly is however not straightforward. Therefore, a structural-acoustical method is used to determine the contact forces inversely. This technique is already used in the automotive industry, but applications in buildings are rather rare. The installation used is a vibrating platform, which induces tonal, low-frequency vibrations into the building. Therefore, the used sound source has to perform well for low frequencies. The resulting forces are used for structure-borne sound power calculation and verified by comparing the sound pressure, caused by this injected power, with measured sound pressure.
ISSN: 1351-010X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Building Physics Section
Soft Matter and Biophysics
× corresponding author
# (joint) last author

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