Geometrical Study of Configuration Singularity for SGCMGs with some Gyros Failure

摘要

This paper analyzed the singularity of SGCMGs with Five Pyramid Configuration (FPC). FPC is a type of SGCMGs configuration which is studied and applied to spacecrafts widely. After some members failure in FPC,the reconstruction with the remainder SGCMG is investigated from singularity point of view. Various cases of one or two units failed in FPC are considered. The corresponding impassible singular moment figures for different cases are protracted. Some performance indices for various reconstructed configurations are calculated and compared each other. The result provides a base for steering law design. In addition, it also provides conference when part units of FPC are considered as backup.