ゆらぎによる適応ファジィ制御を用いた移動物体まわりの非圧縮流れ計算

概要

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A new adaptive control method for fuzzy reasoning is proposed, in which the fuzzy controller works with a fluctuation generator for adaptation. The fluctuation generator which produces Gaussian noise is combined with antecedent parts of a fuzzy controller to fluctuate membership functions in each processing time. The learning parts of the system update the membership functions if the output from the controller is more suitable for faster convergence of the Poisson equation. Two-dimensional numerical simulation of the flow around a moving plate is conducted with the fuzzy controller using this new technique. The control variables, i. e., input to the controller, are the interval of the time step and the over-relaxation parameter of the Poisson equation. As a results it is found that this method is adaptive and time effective. The new adaptive method reduced the computational time to 80% compared that for a fuzzy controller without learning.
一般社団法人日本機械学会の論文
1992-12-25