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Information × Registration Number 0214U006375, 0112U000245 , R & D reports Title Development techniques of analysis and management of the non-stationary processes cylindrical and spherical electroelastic bodies deformation. popup.stage_title Head Kubenko Veniamin Dmitrievich, Registration Date 14-03-2014 Organization S.P.Timoshenko Institute of Mechanics popup.description2 Solutions of problems on control of axisymmetric vibration for the thin-walled non-closed spherical shell made of polarized through the thickness piezoceramics with rigidly fixed edge and mixed boundary conditions of electric group are presented and analyzed. By the application of inte-gral Laplace transform the problem has reduced to system of Volterra's integral equations of 1st kind which is solved numerically using regularizing algorithms. Investigation of deformations of the shell is executed within hypotheses Kirchhoff-Love, generalized on the case of electromechanics, which provide an opportunity to consider two-layered ("piezoceramics-piezoceramics" or "metal-piezoceramics") their constructional performance. Results of numerically-analytical investigations of influence on characteristics of deformations of composite cylindrical shells filled by the flowing ideal incompressible liquid, at transitive modes of their nonlinear vibrations in case of action external loads, look like package of rectangular impulses of pressure, are also stated. The technique of nu-merical determination of the maximal values of radial deflections of shells for all time of transient is developed and realized. Dependences of the maximal values of deflections on the speed of the stream and loads' parameters, such as speed of moving loads' domain, quantity of full passages by the do-main all the shell's length, duration of an impulse and its amplitude are investigated. Product Description popup.authors Ковальчук Петро Савич Лакіза Володимир Данилович Подчасов Микола Павлович Янчевський Ігор Владиславович popup.nrat_date 2020-04-02 Close