Title :
Dynamic boundary control of a rotating flexible structure
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
A flexible spacecraft is modeled as a rigid body that is free to rotate in an inertial frame. A light flexible beam is clamped to the rigid body at one end and is free at the other end. It is shown that suitable dynamic boundary force and moment controls applied to the free end of the beam and suitable control torques applied to the rigid body stabilize the system, in the sense that the energy associated with the system decays to zero. Two different control laws are proposed to stabilize the flexible spacecraft. The stability proofs are obtained by using the energy of the system as a Lyapunov function
Keywords :
Lyapunov methods; adaptive control; aerospace control; boundary-value problems; control system analysis; controllability; damping; dynamics; force control; stability; torque control; Lyapunov function; control laws; control torques; dynamic boundary control; energy; equations of motion; flexible spacecraft; force control; inertial frame; light flexible beam; moment controls; rigid body; rotating flexible structure; stability proofs; Control systems; Couplings; Differential equations; Flexible structures; Force control; Lyapunov method; Nonlinear equations; Partial differential equations; Space vehicles; Stability; Torque control;
Conference_Titel :
Decision and Control, 1992., Proceedings of the 31st IEEE Conference on
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0872-7
DOI :
10.1109/CDC.1992.371503
