Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (5): 7-10.

Previous Articles     Next Articles

Adaptive Fuzzy Control of Milling Process Based on Fieldbus

Lai Xing-yu1  Ye Bang-yan1  Yan Chun-yan2  Li Wei-guang1   

  1. 1.College of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Dept.of Mechatronic Engineering,Guangdong Institute of Science and Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-07-21 Online:2005-05-25 Published:2005-05-25
  • Contact: 赖兴余(1966-)，男，在职博士生，广东省科技干部学院副教授，主要从事制造系统的计算机控制和数控技术方面的研究． E-mail:laixingyu@china.com.cn
  • About author:赖兴余(1966-)，男，在职博士生，广东省科技干部学院副教授，主要从事制造系统的计算机控制和数控技术方面的研究．
  • Supported by:

    广东省自然科学基金资助项目(020917)；广东省重点科技攻关项目(2003C102017)

PDF

269

Abstract:

Aiming at the nonlinearity,time-variability and uncertainty of the milling process,a scheme of the adap-five fuzzy control for the milling process based on the fieldbus is presented by considering the characteristics of fuzzy control and Profibus.A fuzzy controller with self-tuning output scaling factor and control rule is then designed and applied to the on.line control of the milling force with variable cutting parameters.Simulated results show that the
proposed scheme solves the problems existing in the conventional fuzzy control,namely,slow response and weak ro-bustness,and is of quicker response,better real-time feasibility and stability.It can adaptively aajust the feedrate online tiU achieving a constan t milling force approaching the reference force in varied cutting conditions.thus im-proving the machining eficiency and protecting the tool.

Key words: fieldbus, Profibus-DP, milling process, adaptive fuzzy control