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Information × Registration Number 0306U001147, 0104U003288 , R & D reports Title Theory and methods of dynamic processes in elastic system under nonstationary loadings analysis popup.stage_title Методи теоретичного дослідження реакції пружних систем на дію детермінованих та стохастичних впливів різної природи Head Bazhenov Viktor Andriyovich, Registration Date 07-02-2006 Organization Kiev National University of bildiny and tecture popup.description2 The method of a dynamic model of a combined elastic system construction is developed. The combined system consists of shells, beams and massive elements connected within each other. The deformed state of each element is defined with the help of generalized coordinates which are determined through characteristic transitions. There are two classes of characteristic transitions : those stipulated by available connections and interior transitions of the element, which define a modification of a position of interior points in comparison with location of connections. The dynamic processes in a series of high-altitude buildings with impact damper are considered. Such processes take place due to wind loaqdingt. It is discovered, that the force model of contact interactiong between tower and pendulum сorrectlу describes vibroimpact processes in an oscillatory system. It is offered two kindss of a simulating force of contact interaction. The criterion of a choice of group of parameters of simulating function isoffered. The methodic of the shell structure stability analysis including the initial imperfections is worked. The problems of nonlinear stability of cylindrical shell, imperfections of which are seted by the means of stability loosing shape, and also the problem of stability of oil-reservoir with real imperfections. Product Description popup.authors popup.nrat_date 2020-04-02 Close