A method of determination of the minimum frequencies of oscillations of imperfect ribbed cylindrical shells on elastic foundations
DOI:
https://doi.org/10.15407/dopovidi2014.08.067Keywords:
cylindrical shells, elastic foundations, minimum frequencies of oscillationsAbstract
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.
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Gavrilenko G. D., Matsner V. I. Analytical and numerical methods for determining the oscillation frequency in loaded ribbed shells, Kyiv: Akademperiodyka, 2010 (in Russian).
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Golovko K. G., Lugovyy P. Z., Meish V. F. The dynamics of inhomogeneous shells under transient loads, Kyiv: Izd.-poligraf. tsentr “Kievskii universitet”, 2012 (in Russian).
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