Using adaptation methods to stabilize elastic oscillations of large variable-parameter satellites

Consideration was given to providing stability and some performance indices, – in particular, the transient time at reorientation – of the dynamics of large flexible-structure information satellites under a varying spectrum of its natural frequencies. A generalized system structure including the loop of adaptively adjusted additional feedback (AAF) was considered with the aim of providing the desirable system dynamics in the cases where the lower frequency approaches that of control of the “rigid” spacecraft motion. A procedure was presented to design an algorithm for adaptation of the coefficients of the AAF subsystem realizing the desirable dynamics of control of the large elastic satellites. The results of mathematical modeling corroborating efficiency of the proposed system were given.