Paper number 1244
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FUZZY CONTROL OF VIBRATION OF A SMART CFRP LAMINATED BEAM |
Takeshi Takawa1, Takehito Fukuda2, Koichiro Nakashima3
1Department of Industrial and Systems Engineering, Setsunan University,
Ikedanakamachi 17, Neyagawashi, 572-8508, Japan
2Department of Mechanical Engineering , Osaka City University,
Sugimoto 3, Sumiyoshi-ku, Osaka, 558-8585, Japan
3Graduate School of Engineering, Osaka City University
Sugimoto 3, Sumiyoshi-ku, Osaka, 558-8585, Japan
| Summary | In the present study, fuzzy control of vibration of a hybrid smart composite beam actuated by electro-rheological fluids (ERF) and piezoceramics actuators is investigated. A carbon fiber reinforced plastics (CFRP) cantilevered beam containing ERF with bonded piezoceramics is prepared and vibrated forcibly with sinusoidal external excitation. Fuzzy model of controlled element containing two actuators is formed in consideration of intense nonlinearity in ERF actuator. Parameters of membership functions and linear equations of fuzzy inference system in Sugeno style are identified by using a hybrid neuro-fuzzy system. Fuzzy controller for vibration control of the composite beam is designed based on the fuzzy model by using the modern control theory. The effect of vibration control system with a fuzzy controller is verified by simulation and experiment. |
Keywords | vibration, composite laminates, piezo-ceramic actuators, ER fluids, fuzzy control, nonlinearity, fuzzy model, system identification. |