年間 6 号発行
ISSN 印刷: 1948-2590
ISSN オンライン: 1948-2604
AN ALGORITHMIC BASE FOR ANALYSIS OF LOADING CONDITIONS OF LAUNCH VEHICLE STRUCTURE AT MOTION IN DENSE ATMOSPHERE
要約
Methodical principles and an algorithmic base with software developed for prelaunch simulation of launch vehicle (LV) loading conditions during motion in dense atmosphere are presented. The technique for calculating the LV loading conditions is based on the decomposition of a motion equation solution by vibration modes with extraction of the quasi-static component for better convergence. During LV motion in dense atmosphere, loading is calculated by taking into consideration the variations of the vehicle mass and inertial characteristics, which are analogous to the hydro-elastic vibration modes of fuel tanks and sloshes. The variations in the aerodynamic characteristics are also taken into account. A general block diagram of the program complex is presented.