Vibration of stepped thickness plates

Chopra, I (1974) Vibration of stepped thickness plates. International Journal of Mechanical Sciences, 16. pp. 337-344. ISSN 0020-7403

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The vibration characteristics of stepped thickness plates of rectangular geometry with simply supported edges are investigated through an exact analysis. To illustrate the effect of sudden variation of thickness in the step form on the dynamic characteristics of plates, numerical calculations have been made for various combinations of thickness step, step-length ratio and side ratio. Natural frequencies for the first eight to nine modes are presented in the form of tables. Nodal lines are also plotted for a few selected cases. Several interesting features such as that of the thickness step splitting the degenerate frequencies of uniform rectangular plates into distinct ones, and the 'frequency crossing' of some of the modes are observed.

Item Type: Article
Additional Information: Copyright for this article belongs to Elsevier Science Publishing Co.,
Uncontrolled Keywords: Free vibration;Rectangular plates;Resonant frequencies; Structural vibration;Thickness;Thin plates;Dynamic structural analysis;Isotropic media;13; Reinforced plates;Step functions;Tables (data);Vibration mode
Subjects: AERONAUTICS > Aerodynamics
Depositing User: Mrs Neetu Chandra
Date Deposited: 10 Jan 2008
Last Modified: 17 Jun 2010 04:24

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