Fuzzy Control of Fuel Sloshing in a Spacecraft

This paper studies effect of fuzzy controller on fuel sloshing dynamics in orbital maneuvering of the spacecraft. For this aim, a mathematical model of coupled dynamics of spacecraft and fuel sloshing is developed. Then, a classic controller is applied on equations of coupled motion, and because this controller has no good responsibility, therefore a fuzzy controller is suggested in this case. Also, its shown fuzzy controller is more robust than classic controller. In both designed controller law, the controller inputs are three moments about center of mass of the spacecraft and two gimbal deflections angles.