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首页> 外文期刊>Journal of guidance, control, and dynamics >Model-Free Control Design for Multi-Input Multi-Output Aeroelastic System Subject to External Disturbance
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Model-Free Control Design for Multi-Input Multi-Output Aeroelastic System Subject to External Disturbance

机译：外部扰动的多输入多输出气动弹性系统的无模型控制设计

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摘要

In this paper, a class of aeroelastic systems with an unmodeled nonlinearity and external disturbance is considered. By using leading- and trailing-edge control surface actuations, a full-state feedforward/feedback controller is designed to suppress the aeroelastic vibrations of a nonlinear wing section subject to external disturbance. The full-state feedback control yields a uniformly ultimately bounded result for two-axis vibration suppression. With the restriction that only pitching and plunging displacements are measurable while their rates are not, a high-gain observer is used to modify the full-state feedback control design to an output feedback design. Simulation results demonstrate the efficacy of the multi-input multi-output control toward suppressing aeroelastic vibration and limit cycle oscillations occurring in pre and postflutter velocity regimes when the system is subjected to a variety of external disturbance signals. Comparisons are drawn with a previously designed adaptive multi-input multi-output controller.
机译：在本文中，考虑了一类具有未建模的非线性和外部干扰的气动系统。通过使用前缘和后缘控制表面致动，设计了一种全状态前馈/反馈控制器，以抑制受到外部干扰的非线性机翼部分的气动弹性振动。全状态反馈控制为两轴振动抑制产生统一的最终有界结果。由于只能测量俯仰和俯冲位移而不能测量其速率，因此使用了高增益观察器将全状态反馈控制设计修改为输出反馈设计。仿真结果证明了当系统受到各种外部干扰信号时，多输入多输出控制在抑制气动弹性振动和限制在振颤前后速度状态下发生的循环振荡方面的功效。使用先前设计的自适应多输入多输出控制器进行比较。

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  • 来源
    《Journal of guidance, control, and dynamics》 |2011年第2期|p.446-458|共13页
  • 作者

    Z. Wang; A. Behal; P. Marzocca;

  • 作者单位

    University of Central Florida, Orlando, Florida 32826,Department of EECS.;

    University of Central Florida, Orlando, Florida 32826,Mechanical and Aeronautical Engineering;

    Clarkson University, Potsdam, New York 13699,Mechanical and Aeronautical Engineering;

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