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Information × Registration Number 0210U001315, 0107U000452 , R & D reports Title Theory and methods of analysis of vibration fields evolution in elastic systems under stochastic loadings popup.stage_title Head Bazhenov Viktor, Registration Date 04-02-2010 Organization Scientific - research complex of the Kyiv National University of Construction & Architecture popup.description2 Theoretical and methodological basis for investigation of vibration fields evolution under stationary stochastic loadings was developed. With the use of potential theory two approaches for analysis of dynamic stress fields near holes, cracks and other irregularities in elastic systems were proposed and compared. Vibro-impact systems with two masses and two degrees of freedom are investigated. These systems have got the different kinds of limiting stops: rigid limiting stop and soft limiting stop. The comparative analysis of the impact interaction simulation between bodies in such systems is executed. The influence of the external loading parameter and the system characteristics at the vibro-impact systems dynamical behavior is analyzed. Such parameters as the elastic module and the masses of impacting bodies, the resistance forces and the local geometry constant of the contact zones are researched. The model of dynamic stability of j-beam with the corrugated wall flat bending is built. Dynamic stability of beam parametric oscillation under the pressure is investigated. The dynamic stability of the corrugated T-beam parametric oscillation under periodic distributed loading was investigated. Numerical analysis of the stochastic stability of the above mentioned beam random parametric vibration was fulfilled by the Monte Carlo method. The dynamic model of parametric oscillation of cylindrical shell under action of pair of forces applied at it ends is built. The problem of choice of base functions is investigated for adequate description of precritical behavior of shell bending. Product Description popup.authors Бубенчикова В.Г. Ворона Юрій Володимирович Геращенко Олег Валерійович Гоцуляк Євген Олександрович Дехтярюк Євген Семенович Костіна Олена Володимірівна Лук'янченко Ольга Олексіївна Погорелова Ольга Семенівна Постнікова Тетяна Георгіївна popup.nrat_date 2020-04-02 Close