Конечноэлементный анализ резонансных режимов топливоподающего тракта ракеты

Abstract

The method of a liquid longitudinal oscillations modal analysis in an oxidizer line of the fluid-propellant rocket engine is offered. The finite element which is taking into account a liquid compressibility and the pipe walls elasticity is developed. The finite element which approximates the hydroshock reducer that decreases the natural frequencies is offered.