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VIBRATION ANALYSIS OF ANNULAR PLATES USING MODE SUBTRACTION METHOD

✍ Scribed by W.O. WONG; L.H. YAM; Y.Y. LI; L.Y. LAW; K.T. CHAN

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
519 KB
Volume
232
Category
Article
ISSN
0022-460X

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✦ Synopsis

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 di!erent boundary conditions (C}F, S}F, F}F) and relative hole sizes are given. Experimental tests show good agreement with the numerical results.

2000 Academic Press W. O. WONG EΒΉ AΒΈ.

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