Title :
Design of a nonlinear active vibration damping system for a flexible truss structure
Author :
Kanestrom, Rakel Kristin ; Egeland, Olav
Author_Institution :
Dept. of Eng. Cybern., Trondheim Univ., Norway
Abstract :
A multivariable nonlinear controller is proposed for vibration suppression of flexible space structures. The controller gain which precedes the integrator in the integral force feedback scheme is exchanged with a gain consisting of a constant term added to a term proportional to the force measurement signal. This approach provides rapid cancellation of large deflections maintaining low noise sensitivity. L2 is proved and experimental results show improved performance compared to the linear integral force feedback with constant gain
Keywords :
aerospace control; control system synthesis; damping; feedback; force control; multivariable control systems; nonlinear control systems; vibration control; aerospace control; controller gain; deflections; flexible space structures; flexible truss structure; integral force feedback; multivariable nonlinear controller; noise sensitivity; nonlinear active vibration damping system; vibration suppression; Actuators; Control systems; Damping; Force feedback; Force measurement; Gain measurement; Nonlinear control systems; Space technology; Stability; Vibration control;
Conference_Titel :
Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-1298-8
DOI :
10.1109/CDC.1993.325419
