Vibration analysis of annular plates using mode subtraction method

Wai On Wong, L. H. Yam, Y. Y. Li, L. Y. Law, K. T. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


In this paper, a mode subtraction method is presented to investigate the sensitivity of changes in displacement mode shape of annular plates relative to the hole size. It is proved that the displacement modes are sensitive to the presence of a hole in a plate. Jump phenomena are observed in the `residual mode shape', and the number and locations of peaks are determined based upon the displacement modal analysis. Numerical analyses of the changes in displacement mode shapes for different boundary conditions (C-F, S-F, F-F) and relative hole sizes are given. Experimental tests show good agreement with the numerical results.
Original languageEnglish
Pages (from-to)807-822
Number of pages16
JournalJournal of Sound and Vibration
Issue number4
Publication statusPublished - 11 May 2000

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering


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