Chi-Yung Yena,b*, Fuh-Liang Wenc, and Minsun Ouyanga a Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 300, Taiwan, R.O.C.
b Department of Electrical Engineering, National United University, Miaoli 360, Taiwan, R.O.C.
c Department of Mechanical Engineering, St. John’s and St. Mary’s Institute of Technology, Taipei 251, Taiwan, R.O.C.
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An approach of controller design based on fuzzy set and sliding-mode control theory for positioning purpose of a thin-disc edge-driving ultrasonic motor (USM) is developed in this study. A commercially available thin-disc buzzer used as a novel actuating component of ultrasonic motor with simple structure has been demonstrated its cost effectiveness and advantage in flexible mechanism design of a stator and rotor separately according to the necessary of applications. The driving mechanism associated with the non-linear phenomena such as dead-zone and hysteresis behaviors were studied too. Through system identification technique, the approximated transfer function of ultrasonic motor was obtained for controller design using fuzzy sliding-mode (FSMC). It has been successfully applied to position tracking to prove the excellent robust performance in noise rejection.ABSTRACT
Keywords:
ultrasonic motor; non-linear; dead-zone; hysteresis; fuzzy sliding-mode; robust.
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ARTICLE INFORMATION
Accepted:
2004-09-02
Available Online:
2004-12-02
Yen, C.-Y., Wen, F.-L., Ouyang, M. 2004. Nonlinear positioning compensator of a novel Thin-Disc ultrasonic motor using fuzzy Sliding-Mode control, International Journal of Applied Science and Engineering, 2, 257–276. https://doi.org/10.6703/IJASE.2004.2(3).257
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