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Registration Number

0220U102005, 0117U000878 , R & D reports

Title

Estimation vibration loading carrying elements of constructions at nonstationary perturbations

Head

Zaitsev Borys P., Доктор технічних наук

Registration Date

28-02-2020

Organization

A. Podgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine

Description

 Dynamic processes in turbomachines and space rocket structures are investigated. The characteristics of the vibrational intensity of the load-bearing elements of turbomachines and space rocket structures during transient oscillation processes, which are caused by sudden kinematic and force perturbation, are determined. Calculation modeling based on dynamic elasticity theory, finite element method, computational mathematics and computer programs is used. The techniques for calculating the characteristics of vibration load have been adapted for practical application in the study of elements of turbomachines and space rocket equipment in transient oscillation processes related to seismic action and pulse-shock load. Numerical studies of the oscillations of the turbounit–foundation–base system and the stress loading of fastening elements of a high-power plant during seismic impacts have been performed. The results of numerical studies of the vibration load of the elements during the impact and impulse perturbation of the rocket and space systems during their separation were obtained. Calculation studies of transient processes and stress loading of the main elements of the plant during kinematic perturbations have been performed. The parameters of vibration and stress loading of load-bearing elements of power machines during seismic action and space structures under pulse-shock effects are determined. The scope of application is the Ukrainian turbine manufacture and rocket production enterprises, in particular Joint-Stock Company "Turboatom", Yangel Yuzhnoye State Design Office, Ukrainian Thermal Power Plants.

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