Abstract
Control Moment Gyro (CMG) is a momentum-exchange torque generator. Although CMG has the advantage of large output torque, it has a serious problem called singularity. Because singularity changes in accordance with the number and placement of CMGs, when CMGs of original system are in failure state, singularities of a CMG system consisting of the remaining CMGs are different from that of the original CMG system. In this study, we visualize singularity surface of various fault patterns of the Five Pyramid Configuration (FPC) CMG system which placed CMGs on five cants and one top face of a regular dodecahedron, and consider the way to determine optimal angular momentum trajectories using singularity surfaces.
