Magnetic Rigid Spacecraft Attitude Dynamics Stability Study

In this paper, analysis on the chaotic attitude motion of a magnetic rigid spacecraft is discussed. This paper mainly discussed some chaotic phenomena in the magnetic rigid spacecraft dynamics.This thesis mainly includes such contents as follows:In Chapter 1, an introduction of some new progresses in this field is given which includes the definition of spacecraft attitude dynamics and the importance in the aviation science, then introduce some basic theories about chaos, and results acquired in the near future.In Chapter 2, Melnikov methods which are most used in this article are explained.In Chapter 3, several methods examples typical recognition of chaos dynamics are listed.In Chapter 4, the analysis obout the chaotic attitude motion of a magnetic rigid spacecraft without internal damping in orbit near equatorial plane of the earth is discussed, The dynamical model is established by the law of moment of momentum, The Melnikov analysis is carried out to verify that the chaotic phenomenon is possible, and the numerical simulations are used to analysis systematic dynamical motion.In Chapter 5, the analysis obout the chaotic attitude motion of a magnetic rigid spacecraft with internal damping in orbit near equatorial plane of the earth is discussed, The dynamical model is established by the law of moment of momentum., The Melnikov analysis is carried out to verify that the chaotic phenomenon is possible, and the numerical simulations are used to analysis systematic dynamical motion.In Chapter 6, the conclusions of this article are obtained, and then the suggestions to future research are brought forward.