二元翼段间隙非线性颤振的模糊控制

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (6) : 58-61,8.

论文

二元翼段间隙非线性颤振的模糊控制

张军红; 韩景龙

作者信息 +

Airfoil control surface LCO suppression with Fuzzy logic controller

Zhang Jun-hong; Han Jing-long

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文章历史 +

摘要

根据模糊控制不依赖于被控对象的精确模型，对参数变化不敏感，具有很强鲁棒性的特点，提出一种模糊逻辑控制器，对包含间隙的二元机翼极限环振荡进行控制，并对其响应机理进行探讨和研究。数值仿真结果表明，模糊控制器能够有效抑制非线性极限环振动，使系统迅速达到稳定,提高系统颤振速度。

Abstract

A method using fuzzy logic based controller to suppress LCO of airfoil with control panel freeplay is studied, in terms of the good performance of the fuzzy logic controller which does not rely on the precise mathematical model of controlled object, is not sensitive to the parameters perturbation and shows good robustness. System state-space function is built in MATLAB/SIMULINK environment. The simulation results show that such controller can suppress non-linear cycle vibration effectively, quickly stabilizes the system and improves system flutter speed.

导出引用

张军红;韩景龙. 二元翼段间隙非线性颤振的模糊控制[J]. 振动与冲击, 2012, 31(6): 58-61,8

Zhang Jun-hong;Han Jing-long. Airfoil control surface LCO suppression with Fuzzy logic controller[J]. Journal of Vibration and Shock, 2012, 31(6): 58-61,8