The invention discloses a design method for improving the elastic stability of an aerodynamic servo. The method comprises the steps: correcting a body elastic model and a transfer function through employing a whole-plane ground resonance test or whole-plane ground structure modal coupling test data design optimization technology, and then improving the elastic stability of the aerodynamic servo through employing a flight control law dynamic parameter adjustment technology; the aerodynamic force, the structural elasticity and the coupling relation between control systems can be well considered,so that the flight quality requirement, the stability margin requirement of the control systems and the pneumatic servo elastic stability requirement are met within the full envelope range, and the method is already applied and verified in the multi-control-surface unmanned aerial vehicle. The problem that the pneumatic servo elastic stability of a multi-control-surface unmanned aerial vehicle isdifficult to control is solved.

    本发明公开了一种提高气动伺服弹性稳定性设计方法,采用全机地面共振试验或全机地面结构模态耦合试验数据设计优化技术校正机体弹性模型和传递函数,然后采用飞行控制律动态调参技术提高气动伺服弹性稳定性;本发明可以很好兼顾空气动力、结构弹性以及控制系统之间耦合关系,从而实现在全包线范围内满足飞行品质要求、控制系统的稳定裕度要求、气动伺服弹性稳定性要求,并已在多操纵面无人机中得到应用及验证。解决了一类多操纵面无人机气动伺服弹性稳定性难以控制的问题。


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    Title :

    Method for improving elastic stability of pneumatic servo


    Additional title:

    一种提高气动伺服弹性稳定性的方法


    Contributors:
    HAN CHAN (author) / ZHANG QUHUI (author) / XU YAN (author)

    Publication date :

    2020-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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