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Information × Registration Number 0219U003706, 0116U000840 , R & D reports Title Theory and methods of complex mechanical systems dynamic deformation analysis under loads of periodic, stochastic and impact nature popup.stage_title Head Ivanchenko Grigory Mykhailovych, Доктор технічних наук Registration Date 01-03-2019 Organization Scientific - research complex of the Kyiv National University of Construction & Architecture popup.description2 The studying of vibroimpact system dynamic behaviour is fulfilled with applying of parameter continuation method, impact simulation by nonlinear quasistatic Hertz's force, Poincar? maps and Fourier spectrums construction, estimation of the largest Lyapunov exponent, fractal structure construction. Such an approach allows to determine the vibroimpact system motion kinds and to follow it routes to chaos surely and efficiently. It is the guarantee of crisis and critical state prediction. The probabilistic modeling of stochastic loadings of different nature (wind, seismic) is performed using statistical methods and wavelet analysis; A finite-element approach to the study of seismic reaction of spatial structures was developed. The approach is based on the theory and methods of nonlinear mechanics of deformable systems, wavelet analysis and moving waves. Dynamic characteristics of nonstationary stochastic behavior of tower-type and spatial structures in frequency-time space under combining seismic-static loadings are investigated. Product Description popup.authors Баженов В. Ворона Ю. Геращенко О. Костіна О. Лізунов П. Лук'янченко О. Пискунов С. Погорелова О. Постнікова Т. Солодей І. popup.nrat_date 2020-04-02 Close