Accession Number : ADA273832

Title :   A Comparison of Three Approximate Mathematical Models for the Gravity Gradient Stabilized Satellite.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Adams, R. K.

Report Date : DEC 1993

Pagination or Media Count : 138

Abstract : This study compared an exact nonlinear model for the gravity gradient satellite to the two classical approximate models: the linearized and truncated nonlinear models typically used for analysis of the motion and stability of gravity gradient satellites. Rigid body dynamics using molecular mass models and circular orbits were assumed to isolate the comparison to the different models. The complete equations of motion of the exact nonlinear model resulted in more complex motions about the classical points of relative equilibria. Gravity Gradient, Artificial Satellite, Satellite Stability, Euler Angles, Satellite Control, Gravity Torque.

Descriptors :   *ARTIFICIAL SATELLITES, *CIRCULAR ORBITS, *EQUATIONS OF MOTION, *GRADIENTS, *GRAVITY, *MATHEMATICAL MODELS, *NONLINEAR PROGRAMMING, *SPACECRAFT TRAJECTORIES, COMPARISON, CONTROL, DYNAMICS, EULER ANGLES, MASS, STABILITY, TORQUE, THESES, NONLINEAR ANALYSIS, SATELLITE ATTITUDE, COMPUTERIZED SIMULATION, EULER EQUATIONS, COMPUTER PROGRAMS.

Subject Categories : Spacecraft Trajectories and Reentry
      Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE