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Information × Registration Number 0200U001790, 0199U002035 , R & D reports Title Creation of lift capability evaluation method and building design behaviour forecasting under complicated loading popup.stage_title Head Dekhtyaryuk Ye. S., Gulyar O.I., Registration Date 29-03-2000 Organization Kiev National University of bildiny and tecture popup.description2 The numerical method is developed for a selection of optimum parameters of nonlinear dynamic dampeners of fluctuations, with the help of which the fluctuations of structures, being equipped with dampeners of pendulum type are investigated. Their nonlinearity is caused by a presence of nonlinear functions in movement equations of suspended mass. It is intended, that the structures with dampeners of the above type will be under influence of occasional loadings (wind, earthquake, sea fluctuations, machines vibrations, etc.). On the basis of the potential method the general approach regarding to the problem for definition of spectrum parameters of dynamic processes in the massive elements of structures under occasional force fields is worked out. The ratio system, which is a foundation for the method of numerical analysis of stationary occasional fluctuations for the massive elements of structures, is received. The effective approach is created to analyse ferroconcrete 3D structures as solids of revoluti on under different force fields. Combination of main conceptions of semi-analytical finite elements method and theory of discrete reinforced nonlinear materials is used as a basis. The mathematical models are developed for the homogeneous and geterogeneous solids, with a complex form and structure of cross section under the external dynamic loadings. Product Description popup.authors popup.nrat_date 2020-04-03 Close