The invention relates to an aircraft ground main wheel cooperative turning anti-rollover control method. The method comprises the following steps: acquiring an aircraft front wheel steering motion parameter and a main wheel cooperative steering motion parameter in real time; calculating an anti-turnover force arm; under the condition of optimal stress of an aircraft landing gear, ground turning instantaneous center point coordinates of different front wheel turning angles are calculated based on a force balance equation and a moment balance equation, and the relation between the front wheel turning angles and the main wheel turning angles corresponding to the center point coordinates is obtained; calculating rollover moments and stabilizing moments of different front wheel rotation angles; under the condition that the rollover moment and the stabilizing moment are balanced, a front wheel limit rotation angle is obtained through calculation, and an aircraft rollover safety envelope is obtained based on fitting of the front wheel limit rotation angle; the front wheel turning angle is controlled based on the safety envelope to prevent rollover of the aircraft. Compared with the prior art, the method has the advantages of high accuracy, good universality and the like.

    本发明涉及一种飞机地面主轮协同转弯防侧翻控制方法,方法包括:实时获取飞机前轮转向运动参量和主轮协同转向运动参量;计算防翻倒力臂;在飞机起落架受力最优条件下,基于力平衡方程和力矩平衡方程计算不同前轮转角的地面转弯瞬时中心点坐标,并获得与中心点坐标对应的前轮转角和主轮转角之间的关系;计算不同前轮转角的侧翻力矩与稳定力矩;在侧翻力矩与稳定力矩平衡的情况下,计算得到前轮极限转角,基于前轮极限转角拟合得到飞机侧翻安全包线;基于安全包线控制前轮转角,防止飞机侧翻。与现有技术相比,本发明具有准确度高、泛用性好等优点。


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    Title :

    Airplane ground main wheel collaborative turning anti-rollover control method


    Additional title:

    一种飞机地面主轮协同转弯防侧翻控制方法


    Contributors:
    LI JING (author) / GENG JIKAI (author)

    Publication date :

    2023-01-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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