In-flight measurements of nutation damping onboard Symphonie satellites are interpreted and a prediction model, which determines the time constant for nutation damping as a result of momentum energy being dissipated by liquid propellants in fuel tanks is verified. Although model predictions disagree with in-flight measurements, they accurately portray the variation in damping time constant in function of tank fuel level. The radial motion of the satellite momentum wheel is evoked to explain the difference between computation and measurement.
Natural Nutation Damping Due to the Ergols of the Hot Gaz Propulsion System. Synthesis of MV1 and MV2 in-Flight Results
1979
9 pages
Report
No indication
English
Unmanned Spacecraft , In-flight monitoring , Liquid rocket propellants , Nutation , Spacecraft stability , Viscous damping , Energy dissipation , Kinetic energy , Liquid filled shells , Mathematical models , Ots (Esa) , Propellant tanks , Stokes law (Fluid mechanics) , Symphonie satellites , Foreign technology , Translations
Spinup maneuver and nonlinear active nutation damping
AIAA | 1996
|Spinup Maneuver and Nonlinear Active Nutation Damping
Online Contents | 1996
|