To the decision of task about the vibrations of circular plate with a thickness decreasing from a center on a protuberant parabola
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Abstract
A task is considered about the axisymmetric proper оsсillations of circular plate with a thickness decreasing from a center on a protuberant parabola. The method of decision of differential equalization of fourth order, that describes axisymmetric proper оsсillations, is shown. Proper frequencies are found and corresponding is built to them the first three forms of vibrations for a plate with the hard fixing of internal contour. Efficiency of decision of task the method of symmetries is confirmed, worked out before for linear equalizations the second order.
Reference 9, figures 3, tables 2.
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