Title: Controller design for vibration of a smart CFRP composite beam based on the fuzzy model

Authors: Takeshi Takawa, Takehito Fukuda

Addresses: Department of Industrial and Systems Engineering, Faculty of Engineering, Setsunan University, 17-8, Ikedanakamachi, Neyagawa, 572-8508, Japan. Department of Intelligent Materials Engineering, Graduate School of Engineering, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan

Abstract: In the present study, vibration control is investigated for a smart carbon fibre reinforced plastics (CFRP) composite beam actuated by piezoceramics (PZT) and electro-rheological fluid (ERF) actuators. A fuzzy model of the controlled element containing two actuators is formed because the application of linear control theory to the vibration control is very different due to the intensive nonlinearity in the ERF actuator. The fuzzy model is identified based on the result of system identification test by using a hybrid neuro-fuzzy system. A controller for guaranteeing bounded input-bounded output (BIBO) stability of the vibration control system of the composite beam is designed by solving linear matrix inequalities (LMI) obtained based on Lyapunov|s stability theory. The effect of vibration control system is verified by simulation and experiment.

Keywords: ERF; PZT; smart composite beam; fuzzy model; BIBO stability; LMI; vibration control.

DOI: 10.1504/IJVD.2003.003651

International Journal of Vehicle Design, 2003 Vol.33 No.1/2/3, pp.115 - 127

Published online: 28 Sep 2003 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article