COMPUTER SIMULATION OF FREE AND FORCED VIBRATION OF COMPOUND FUEL TANKS

Abstract

The new analytical method and computer technology are elaborated for numerical simulation of free and forced vibrations of compound fuel tanks in launch vehicles at different stages of mission: at overloads and in microgravity, with considering the liquid sloshing impacts. The technique is based on original computational schemes and advanced finite and boundary element methods, analytical approach and their theoretical background. The proposed numerical method, more precise and effective compared with known analogues and program complexes, will be implemented for refined simulation of fuel tank vibrations.