Influence of reinforcement and elastic foundation on the vibrations of shallow shells with rectangular planform |
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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 method for determining the natural frequencies and modes of ribbed shallow shells with rectangular planform on an elastic
foundation is developed. The method takes into account the discrete arrangement of the ribs. A shallow spherical shell with
square planform is considered as example to analyze the effect of the number of ribs and the Winkler and Pasternak coefficients
of subgrade reaction on the natural frequencies and modes. It is recommended to take into account the discrete arrangement
of ribs when they are few |
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