Nonlinear control of a parametrically excited system subject to actuator saturation

Author

Chen, Ley ; Hansen, Colin H.

Author_Institution

Sch. of Mech. Eng., Adelaide Univ., SA, Australia

Volume

4

fYear

2003

fDate

9-12 Dec. 2003

Firstpage

3846

Abstract

In this paper, a control method that combines linear and nonlinear velocity feedback control is proposed to suppress the principal parametric resonance in a flexible cantilever beam structure. Linear-velocity feedback is employed for bifurcation control and cubic-velocity feedback is employed to suppress the high-amplitude vibration. Numerical simulation and experimental results show that combined bifurcation control and nonlinear feedback control can avoid actuator saturation and performs better than linear-velocity and cubic-velocity feedback control alone.

Keywords

actuators; feedback; flexible structures; frequency response; nonlinear control systems; numerical analysis; stability; vibration control; actuator saturation; bifurcation control; cantilever beam structure; cubic velocity feedback; frequency response; linear velocity feedback control; nonlinear control; nonlinear velocity feedback control; numerical simulation; parametric resonance suppression; parametrically excited systems; vibration suppression; Actuators; Bifurcation; Control systems; Feedback control; Linear feedback control systems; Nonlinear control systems; Resonance; Structural beams; Velocity control; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2003. Proceedings. 42nd IEEE Conference on

ISSN

0191-2216

Print_ISBN

0-7803-7924-1

Type

conf

DOI

10.1109/CDC.2003.1271749

Filename

1271749