Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12768
Title: A study of the effect of floor mobility on structure-borne sound power transmission
Authors: Mak, CM 
Su, J
Keywords: Floor mobility
Power transmission
Vibration isolation
Issue Date: 2003
Publisher: Pergamon Press
Source: Building and environment, 2003, v. 38, no. 3, p. 443-455 How to cite?
Journal: Building and environment 
Abstract: Force transmissibility is usually employed by engineers to select suitable vibration isolators for building services equipment. In the derivation of this usual engineering force transmissibility, floor structure is assumed to be unmovable and the effect of floor mobility is neglected. Based on this assumption, the use of spring isolators will certainly reduce sound power transmitted to the floor for all values of the ratio of forcing frequency and natural frequency greater than 1.414. However, floor structure is flexible and movable in reality. This paper will therefore discuss the effect of floor mobility on structure-borne sound power transmission from which it is shown that spring isolators do not help in vibration isolation at disturbing frequencies near the resonant frequency of the floor and may even worsen the problem at those particular frequencies.
URI: http://hdl.handle.net/10397/12768
ISSN: 0360-1323
EISSN: 1873-684X
DOI: 10.1016/S0360-1323(02)00185-3
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