Approach to Spacecraft Functional Stability in Changes in Moments of Inertia

The paper considers comprehensive solution providing functional stability of the spacecraft with changes in its moments of inertia. There was developed the mathematical description of the spacecraft angular position stabilization system (APSS) in the linear and discrete forms. There was shown the process of obtaining spacecraft APSS diagnostic models for the particular kind and class of failure. There was proved possible to diagnose and restore functionality spacecraft APSS at the systemic level, using the regulator coefficients parametric adjustment