Dynamic boundary control of a rotating flexible structure

Author

Morgül, Ömer

Author_Institution

Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey

fYear

1992

fDate

1992

Firstpage

1305

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1992., Proceedings of the 31st IEEE Conference on

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-0872-7

Type

conf

DOI

10.1109/CDC.1992.371503

Filename

371503