A power transmissibility method for assessing the performance of vibration isolation of building services equipment

Cheuk Ming Mak, Su Jianxin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

Force transmissibility is commonly adopted in building services engineering to assess the performance of vibration isolation. However, it neglects the effect of floor mobility on structure-borne sound power transmitted from a vibratory machine to the floor/roof and the interactions among several contact points between the vibratory machine and the floor/roof. The problem that motivated this study is the occasional occurrence of unsatisfactory performance of vibration isolators observed in building services engineering. This problem may be due to the over-simplification of the vibratory problem in the usual definition of the un-damped force transmissibility or isolation efficiency commonly used in engineering practice. In this paper, use of a "power transmissibility", which includes the effect of floor mobility and the interaction of all dynamic forces transmitted to the floor through the vibration isolators, is proposed.
Original languageEnglish
Pages (from-to)1281-1299
Number of pages19
JournalApplied Acoustics
Volume63
Issue number12
DOIs
Publication statusPublished - 1 Jan 2002

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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