Forced Response of Fluid-Spacecraft Coupling System and Force and moment of Fluid Acting on Container

摘要

In this paper, forced response of fluid-spacecraft coupling system and force and moment of acting on rectangular container are studied. Firstly, the interrelation between the generalized coordinates of fluid velocity potential function and surface wave-height function is derived from linearized equations describing motion of contained fluid. The dynamical equations of coupling system is obtained by Lagrangian formulation. These equations provides some insights of fluid-spacecraft coupling characteristics. It is not in the sense of the whole modal mass that the fluid sloshing of corresponding order is excited by the vibration of the spacecraft. Then, the force and moment of the fluid on the container are derived and discussed in detail. Lastly, numerical simulation and conclusions are given.