We consider the problem of free oscillations of an ideal fluid in a container that has the form of a right circular cylinder with arbitrary axisymmetric bottom in the case where the unperturbed free surface of the fluid is covered by an elastic membrane or plate. Using the expansion in eigenfunctions of an auxiliary spectral problem with a parameter in boundary conditions and the method of decomposition of the domain of meridional cross-section of a container, we obtain an analytic solution of the problem. Individual examples of mechanical systems are considered, for which we construct solutions by using the proposed algorithm, analyze these solutions, and compute the frequencies and forms of oscillations.
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Translated from Neliniini Kolyvannya, Vol. 13, No. 4, pp. 461–482, October–December, 2010.
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Bohun, R.I., Trotsenko, V.A. Free oscillations of a fluid in a cylindrical container with arbitrary axisymmetric bottom and elastic elements on the free surface of the fluid. Nonlinear Oscill 13, 493–514 (2011). https://doi.org/10.1007/s11072-011-0126-4
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DOI: https://doi.org/10.1007/s11072-011-0126-4