5 research outputs found
Oscillation of elastic structures with unilateral friction
No full textWe consider the behavior of elastic systems with nonlinear friction, which is given as a function of relay type, i.e., as a step-wise continuous function. The analytical-numerical method for investigation oscillations of the mentioned systems was constructed. This approach is based on the development of nonlinear discrete model of the investigated system. We consider problems on transient regimes of the system motion. Some peculiarities of the manifestation of nonlinear properties of the system are investigated and several numerical results on the mentioned problems are discussed
Combined motion of reservoir with liquid for angular motions of carrying body
No full textWe consider peculiarities of the modeling of wave motion of ideal liquid in a reservoir, which performs inclined motions. For description of behavior of the system we use variational formulation of the problem on the basis of the Hamilton-Ostrogradskiy variational principle with preliminary satisfying all kinematic boundary conditions of the problem. It is shown that this approach makes it possible to reduce considerably the number of unknowns of the problem and reduce it description only to parameters of motion of a liquid free surface and parameters of motion of a carrying body. The constructed nonlinear discrete model of the system was applied for investigation of motion of a reservoir with liquid on pendulum suspension, on taking into account liquid outflow and other problems, which have theoretical and applied meaning
Nonlinear Properties for Dynamic Behavior of Liquid with a Free Surface in a Rigid Moving Tank
No full textNonstationary problems of oscillations for elastic system with unilateral external interaction
No full textАкадемік М.О. Перестюк (01.01.1946 – 25.01.2024) – видатний вчений і педагог
No full textThe article is devoted to the life and scientific path of academician of the National Academy of Sciences of Ukraine, Нonored professor of Taras Shevchenko Kyiv National University, Mykola Oleksiyovych Perestyuk. In particular, the material contains a complete list of Mykola Oleksiyovych\u27s students and the topics of their dissertations, a list of monographs, textbooks, study guides and major scientific publications, a list of major state awards and titles.
Pages of the article in the issue: 5 - 16
Language of the article: UkrainianСтаття присвячена життєвому та науковому шляху академіка НАН України, Заслуженого професора Київського національного університету імені Тараса Шевченка Миколи Олексійовича Перестюка. Зокрема, матеріал містить повний перелік учнів Миколи Олексійовича та тем їх дисертацій, список монографій, підручників, навчальних посібників та основних наукових публікацій, перелік основних державних нагород і звань
