Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
SLOSHING EFFECTS ON SGDC PROPELLANT TANKS
Submission Author:
Henrique Oliveira da Mata , DF
Co-Authors:
Henrique Oliveira da Mata, Téssio Perotti Arruda, Márcia Nunes
Presenter: Henrique Oliveira da Mata
doi://10.26678/ABCM.COBEM2019.COB2019-1129
Abstract
During the operations of the Defense and Strategic Communications Geostationary Satellite (SGDC) at the Space Operations Center (COPE), the SGDC performs Station Keeping maneuvers periodically in order to maintain its orbit. At the end of its "boost phase'', the satellite has been exhibiting an anomalous behavior in both the torque and motor current of the reaction wheels. The analysis of related telemetry shows that the satellite probably suffers from sloshing effects (the movement of liquid propellants inside the tanks), generating a sudden torque at the end of burn. Then, these actuators are requested in order to maintain the satellite's attitude.
Keywords
Sloshing, Reaction wheels, Attitude Control System
