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Information × Registration Number 0310U002080, 0107U000328 , R & D reports Title Vibrations, wave and impact processes of interaction of solids, elastic bodies and fluid. popup.stage_title Стаціонарна дифракція хвиль на системі тіл різної геометрії. Head Kubenko Veniamin Dmitrievich, Registration Date 29-01-2010 Organization S.P.Timoshenko Institute of Mechanics popup.description2 The approach to research of behaviour of mechanical system which consists of an infinite cylindrical shell (a cylindrical cavity), by the filled ideal compressed liquid and containing rigid spherical inclusion is offered. In the first case it is considered diffraction field of pressure in the shell under the influence of inclusion pulsations; in the second case in a cavity along its axis the plane acoustic wave extends. The problem is formulated with classical modelling representations: the theory of a potential flow and the theory of elastic shells by Kirchoff-Love. The exact satisfaction to boundary conditions on the inclusion and shell surface occurs at the expense of rerepresentation of partial solutions of the wave equation in cylindrical and spherical systems of coordinates. Distribution of pressure and velocity of a liquid depending on frequency of pulsations or length of a falling wave and a parity of radiuses of the shell (cavity) and inclusion is calculated. Presence of eigenfrequencies of the system is established. Product Description popup.authors Ковальчук Петро Савич Лакіза Володимир Данилович Подчасов Микола Павлович popup.nrat_date 2020-04-02 Close