A method of determination of the minimum frequencies of oscillations of imperfect ribbed cylindrical shells on elastic foundations

1Gavrylenko, GD, 1Matsner, VI
1S.P. Timoshenko Institute of Mechanics of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2014, 8:67-71
Section: Mechanics
Language: Russian

An approach to the determination of the critical frequencies of oscillations of ribbed cylindrical shells in the elastic medium (elastic foundation) with axisymmetric irregularities of their forms is proposed. The results of studies of the effect of the parameters of axisymmetric imperfections (the number of dents, their lengths and amplitudes) on the minimum frequencies of oscillations at various coefficients characterizing the elastic foundation are presented.

Keywords: cylindrical shells, elastic foundations, minimum frequencies of oscillations

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