Please use this identifier to cite or link to this item:
Title: The effect of a concrete plinth on structure-borne sound power transmission : theory and numeric simulations
Authors: Zu, F
Mak, CM 
Keywords: Concrete plinth
Distributed mass
Modal functions
Power transmissibility
Issue Date: 2011
Publisher: SAGE Publications
Source: Journal of low frequency noise, vibration and active control, 2011, v. 30, no. 2, p. 107-123 How to cite?
Journal: Journal of low frequency noise, vibration and active control 
Abstract: Concrete plinths are commonly used by engineers as a base for vibratory building services machines. However, it is not clear what effects they have on the structure-borne sound power transmission and the eigenfrequencies of floors. In this paper, the modal functions, eigenfrequencies, and mobility expression of a floor with a concrete plinth attached are deduced. The power transmissibility method is used to analyze the effect of a concrete plinth on the power transmissibility that is used to assess the performance of vibration isolation. It is found that the effect of a concrete plinth is mainly to decrease the eigenfrequencies of the floor, and changing the thickness of the concrete plinth has a greater effect on the eigenfrequencies of the floor and the power transmissibility than does changing the area of the concrete plinth. An estimated equation for power transmissibility is formulated.
ISSN: 1461-3484
EISSN: 2048-4046
DOI: 10.1260/0263-0923.30.2.107
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

Last Week
Last month
Citations as of Aug 19, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.