Estimation of best mounting positions for vibratory equipment in buildings

Fenglei Zu, Cheuk Ming Mak

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


It is of engineering interest to be able to estimate the best mounting position for isolated vibratory equipment in buildings, as doing so successfully means the minimum amount of overall structure-borne sound power will be transmitted to the floor structure. In this paper, a method is proposed to determine this position. A numerical approach, known as the finite difference method, and a modal testing process, the frequency domain decomposition method, are used to obtain a value for the floor mobility at all possible mounting points. The results show that it is difficult to select the best mounting positions at frequencies near the natural frequency of the vibratory system and eigenfrequency of the floor. Such positions are comparatively easier to determine at the higher frequency ratio of 6-14.
Original languageEnglish
Pages (from-to)301-310
Number of pages10
JournalJVC/Journal of Vibration and Control
Issue number2
Publication statusPublished - 1 Feb 2011


  • Eigenfrequency
  • floor mobility
  • mounting positions
  • total structure-borne power
  • vibratory equipment

ASJC Scopus subject areas

  • General Materials Science
  • Automotive Engineering
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering


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