Abstract
A method for calculating the natural oscillations of a cylindrical shell of an orthotropic material is proposed. The shell is stiffened by a set of sufficiently densely positioned transverse-longitudinal ribs, the arrangement of which allows “smearing” and contains sparsely positioned discrete stiffening rings. The shell may have a closed or open cross section; it is considered to be loaded by external pressure and axial forces. The problem is reduced to a set of homogeneous algebraic equations the number of which is equal to twice the number of discrete ribs; the equation was obtained in explicit form. The comparison of the calculated and experimental data is provided.
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Original Russian Text © Yu.S. Solomonov, A.A. Bagdasar’yan, V.P. Georgievskii, 2018, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2018, No. 2, pp. 20–24.
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Solomonov, Y.S., Bagdasar’yan, A.A. & Georgievskii, V.P. Free Oscillations of a Composite Structurally Orthotropic Cylindrical Shell Stiffened by Discretely Positioned Ring Ribs. J. Mach. Manuf. Reliab. 47, 137–141 (2018). https://doi.org/10.3103/S1052618818020127
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DOI: https://doi.org/10.3103/S1052618818020127