Simplified type-2 fuzzy sliding controller for wing rock system

  • Authors:
  • C. W. Tao;J. S. Taur;Chia-Wen Chang;Yeong-Hwa Chang

  • Affiliations:
  • Department of Electrical Engineering, National Ilan University, Taiwan;Department of Electrical Engineering, National Chung-Hsing University, Taiwan;Department of Electrical Engineering, Chang Gung University, Taiwan;Department of Electrical Engineering, Chang Gung University, Taiwan

  • Venue:
  • Fuzzy Sets and Systems
  • Year:
  • 2012

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Abstract

Wing rock is a highly nonlinear phenomenon in which aircrafts with slender delta wings undergo limit cycle roll oscillations at high angles of attack. A simplified type-2 fuzzy sliding controller is designed for suppressing wing rock phenomena and tracking the desired trajectories. To reduce the computational complexity of a type-reducer, the end points of a type-reduced set are approximated by the outputs of two standard fuzzy sliding mechanisms in the proposed simplified type-2 fuzzy sliding controller. Furthermore, the sliding modes of the fuzzy sliding control system are guaranteed. Simulation results are included to show the effectiveness of the proposed simplified type-2 fuzzy sliding controller.