The invention provides a wind tunnel test-based ornithopter longitudinal attitude dynamics modeling method, which comprises the following steps of: simulating flight through a wind tunnel test, measuring experimental data of longitudinal torque of an ornithopter, and calculating average longitudinal torque and flapping frequency of the ornithopter based on the experimental data; based on flapping motion and translation motion of the ornithopter and the synergistic effect of the flapping motion and the translation motion, the longitudinal moment is divided into a first moment, a second moment and a third moment; establishing an incoming flow-free model for the longitudinal moment of the flapping-wing aircraft according to the first moment, and determining a first model parameter according to the average longitudinal moment and the flapping frequency; and based on a non-incoming-flow model, establishing an incoming flow model for the longitudinal moment of the flapping-wing aircraft by combining the second moment and the third moment, and determining a second model parameter according to the average longitudinal moment and the flapping frequency. Flight tests with higher equipment requirements are avoided, the data acquisition difficulty is reduced, and the modeling precision is improved based on wind tunnel test data.

    本发明提出了一种基于风洞试验的扑翼飞行器纵向姿态动力学建模方法,包括:通过风洞试验模拟飞行,测量扑翼飞行器的纵向力矩的实验数据,基于实验数据计算扑翼飞行器的平均纵向力矩和扑动频率;基于扑翼飞行器的扑动运动和平移运动,以及扑动运动和平移运动的协同效应,将纵向力矩分为第一力矩、第二力矩以及第三力矩;根据第一力矩对扑翼飞行器纵向力矩建立无来流模型,根据平均纵向力矩和扑动频率确定第一模型参数;基于无来流模型,结合第二力矩和第三力矩对扑翼飞行器纵向力矩建立来流模型,根据平均纵向力矩和扑动频率确定第二模型参数。本发明避免设备要求更高的飞行试验,降低数据获取的难度,基于风洞试验数据提高建模精度。


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    Title :

    Ornithopter longitudinal attitude dynamics modeling method based on wind tunnel test


    Additional title:

    一种基于风洞试验的扑翼飞行器纵向姿态动力学建模方法


    Contributors:
    WANG ZHONGLAI (author) / XU JING (author) / ZHI PENGPENG (author) / ZHANG HUILE (author)

    Publication date :

    2022-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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