GUARANTEED PERFORMANCE CONTROL OF NONLINEAR-SYSTEMS WITH APPLICATION TO FLEXIBLE SPACE STRUCTURE

This paper considers the problem of controlling nonlinear uncertain sy stems arising from flexible aerospace structures, We begin by addressi ng the tracking problem for a class of nonlinear dynamic systems with modeling uncertainties and external disturbances, New control algorith ms that accommodate modeling uncertainties are proposed, It is shown t hat these algorithms not only guarantee system stability but also achi eve certain bounded performance index and are readily applicable in vi bration suppression of large flexible space structures, Numerical veri fication of the proposed strategy is demonstrated via the lumped mass model of a hypersonic aerospace night vehicle structure.