Optimal damping of nutational motion of spin-stabilized satellites

Computer Science

Scientific paper

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Nutation Dampers, Optimal Control, Rotary Stability, Satellite Rotation, Spin Stabilization, Viscous Damping, Cylindrical Shells, Equations Of Motion, Orbital Mechanics, Steady State

Scientific paper

The paper investigates the dynamics of a satellite nutation damping system consisting of a mass on a spring placed in a cylinder filled with a viscous fluid. Damping is accomplished through the viscous-friction type interaction during the oscillations of the mass in the fluid. Neglecting the external forces acting on the satellite, the authors derive the equations of motion for the satellite-damper system. Conditions for stability of steady-state spinning are obtained, and optimal satellite and damper parameters ensuring maximal rate of damping the nutational motion are determined.

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