Sokulsky O. Estimation method of influence liquid fuel vibrations on dynamic properties of aerospace system taking into account descriptions of vibration dampers

The thesis deals with questions of investigation of oscillations of liquid fuel in tanks of aerospace systems. The guidance apparatus of estimation the influence of liquid fuel on the dynamics of flight of the aerospace system has been developed in the thesis. It consists of the mathematical model of carrier rocket's motion dynamics of aerospace system taking into account vibrations of liquid fuel, its effluence, integral descriptions of viscosity, presence of dampers vibrations and the method of determination of descriptions of dampers in the of carrier rocket's fuels tanks of the aerospace system. The mathematical modeling of force and torque response of liquid fuel at flight of the first and second stage of perspective aerospace rocket complex "Svityaz - 1" has been conducted. Keywords: vibrations of liquid fuel, flight dynamics, force and torque response of liquid, damping of liquid oscillations.