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

fYear

1993

fDate

15-17 Dec 1993

Firstpage

1404

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on

Conference_Location

San Antonio, TX

Print_ISBN

0-7803-1298-8

Type

conf

DOI

10.1109/CDC.1993.325419

Filename

325419