INFLUENCE OF INTERACTION OF STRUCTURAL VIBRATIONS AND LIQUID PULSATIONS UPON THE AMPLIFICATION FACTOR OF THE FEEDING PIPELINE
Yu.A. Zhulay, S.I. Dolgopolov
An expression for amplification factor of the feeding pipeline of a propulsion system of liquid-propellant rocket at joint longitudinal oscillations of pipeline structure and liquid is received. For the specific power supply system it is shown that interaction of longitudinal oscillations of pipeline structure and liquid may essentially change the module of amplification factor of the feeding pipeline. This is caused by nearness of oscillation frequencies of the partial systems of pipeline structure and liquid, also regarding the damping in the pipeline. 
Keywords: liquid-propellant rocket, longitudinal oscillations of the body, propulsion system of liquid-propellant rocket, pump cavitation, amplification factor, interaction of oscillations.