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FREE VIBRATION OF LONGITUDINALLY STIFFENED CURVED PANELS WITH CUTOUT

โœ Scribed by B. SIVASUBRAMONIAN; G.V. RAO; A. KRISHNAN

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
176 KB
Volume
226
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Free vibration characteristics of longitudinally sti!ened square panels with symmetrical square cutouts are investigated by using the "nite-element method. A rectangular shell element with seven degrees of freedom per node together with a beam element of seven degrees of freedom per node is used for the analysis. Studies are carried out on unsti!ened as well as sti!ened panels keeping the size, weight and boundary conditions the same. Numerical results indicate that the frequency of the sti!ened panel is higher. Maximum increase in fundamental frequency is observed on the panel with the smallest radius of curvature.

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