Title :
Two-degrees-of-freedom control of a precise positioning device with a piezoelectric element
Author :
Osaka, Tatsuya ; Naganawa, Akihiro ; Sakurada, Akira ; Shibuya, Yotsugi ; Mori, Shigeki
Author_Institution :
Dept. of Mech. Eng., Akita Univ., Akita, Japan
Abstract :
In this research, we examined an adaptive control method to suppress overshooting in a precise positioning device with a damper composed of a visco-elastic material and a constrained plate. A two-degrees-of-freedom control system was adopted with conditions, to shape the response characteristics of the desired response using feedforward controller. Moreover, by using a feedback controller to inhibit the influence of the damper, the gain of a PID controller could be adjusted using a neural network. The validity of our technique will be verified via simulation.
Keywords :
adaptive control; feedback; feedforward; neurocontrollers; position control; three-term control; vibration control; PID controller gain adjustment; adaptive control method; constrained plate; damper influence inhibition; feedback controller; feedforward controller; neural network; overshooting suppression; piezoelectric element; precise positioning device; response characteristics shaping; two-degrees-of-freedom control system; viscoelastic material; Adaptive control; Artificial neural networks; Control systems; Gain; Resonant frequency; Shock absorbers; Damper; Modeling error; Neural network; Precise positioning device; Two-degrees-of-freedom control system;
Conference_Titel :
SICE Annual Conference (SICE), 2012 Proceedings of
Conference_Location :
Akita
Print_ISBN :
978-1-4673-2259-1
