Intelligent Sensor Fault Detection of Vibration Control for Flexible Structures
Masahiro Isogai*, Fumihito Arai** and Toshio Fukuda***
*Yamazaki Mazak Corporation, Oguchi-cho, Niwa-gun, Aichi prefecture 460-0197, Japan
**Department of Micro System Engineering, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
***Center for Cooperative Research in Advanced Science & Technology, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
Vibration control for flexible structures such as arms and space structures has been widely studied. We proposed model-based decentralized control for flexible structures by decoupling mode quantities of other links. If a failure occurs, control performance drops due to parameter error between the model and plant. We must consider device fault detection and controller reconfiguration. We propose a fault-tolerant system using inverse dynamics constructed by neural network for sensor fault detection and NN adaptive control for the actuator fault to reconfigure control to compensate for parameter changes due to actuator faults. The effectiveness of our proposal is shown through simulation.
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