STATE-EQUATIONS FOR MANEUVERING AND CONTROL OF FLEXIBLE BODIES USING QUASIMOMENTA

This paper is concerned with the derivation of state equations suitabl e for the task of designing controls for the maneuvers of flexible bod ies in space while controlling the elastic vibration. The equations ar e in terms of quasimomenta, defined as moments corresponding to quasic oordinates, and are simpler in form than the equations in terms of qua sicoordinates. A perturbation approach permits design of a dual-level control, a high-authority control for the rigid-body maneuvering and a low-authority control for the suppression of the elastic vibration.