Vibrations of ribbed shallow rectangular shells on an elastic foundation |
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| Authors: | P Z Lugovoi N Ya Prokopenko |
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| Institution: | 1.S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine,Kyiv,Ukraine |
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| Abstract: | A procedure to determine the natural frequencies and modes of ribbed shallow shells with rectangular planform on an elastic
foundation is developed. The effect of the radius of curvature and the Winkler and Pasternak coefficients of subgrade reaction
on the natural frequencies and modes of a shallow spherical shell with a square planform is analyzed. It is revealed that
not only the natural frequencies but also the modes of the shell depend on the coefficients of subgrade reaction |
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