Model propellant slosh for Europa Clipper using two pendulums such that controls engineers can predict slosh behavior during the mission. Importance of predicting propellant slosh; (1) Sloshing changes CM (center of mass) of spacecraft and exerts forces and torques on spacecraft. (2) Avoid natural frequencies of structures. (3) Size ACS (Attitude Control Systems) thrusters to counteract forces and torques. Can model sloshing fluid as two pendulums with specific parameters (mass, length, damping),
Two-Pendulum Model of Propellant Slosh in Europa Clipper PMD Tank
2017
45 pages
Report
No indication
English
Fluid Mechanics , Fuels , Rocket Propellants , Approximation , Comparison , Computational fluid dynamics , Computerized simulation , Europa , Fluid dynamics , Liquid sloshing , Propellants , Root-mean-square errors , Two body problem , Attitude control , Center of mass , Curve fitting , Damping , Resonant frequencies , Torque
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