Two Galileo dynamic models were developed to simulate the spinup, the main engine burn and the spindown maneuvers for the critical events of the Jupiter orbit insertion and perijove raise maneuver. The dynamic interaction between the spin thruster pulsing frequency, the science magnetometer boom flexible modes and the propellant slosh modes were studied. The prediction of safe orbit insertion was validated in flight. For the perijove raise maneuver, the simulation results indicated that propellant unporting would occur if the original spin thruster duty cycle was not updated. Based on further simulation results, a new duty cycle was selected to prevent propellant unporting. Subsequent Galileo flight data indicated that the perijove raise maneuver was successfully executed.
Dynamic modelling and simulation study for the Galileo spacecraft pulsed-mode spinup/400 N main engine burn/spindown maneuvers
1996-11-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
Time-optical spinup maneuvers of flexible spacecraft
NTRS | 1990
|Dynamic Modelling & Simulation Study for Galileo Spacecraft Maneuvers
British Library Conference Proceedings | 1996
|Dynamic Modelling & Simulation Study for Galileo Spacecraft Maneuvers
British Library Online Contents | 1996
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