The invention belongs to the field of propeller-driven aircraft pitching moment calculation, and particularly relates to a propeller-driven aircraft pitching moment characteristic calculation method considering dynamic influence. The influence of the attack angle, speed, engine tension, engine number, engine nacelle size and position, propeller diameter and rotating speed, flap deflection angle, flap chord length and wing span-chord ratio of a propeller aircraft on pitching moment is fully considered; pitching moment coefficients generated by propeller pulling force, propeller disc normal force and propeller slip flow and power influences such as horizontal empennage lower washing angle changes are accurately calculated, and then the pitching moment coefficient of the propeller-driven aircraft can be accurately obtained and used for calculating the pitching moment of the propeller-driven aircraft. Effective support can be provided for design, improvement and control of a propeller-driven aircraft.

    本申请属于螺旋桨飞机俯仰力矩计算领域,具体涉及一种考虑动力影响的螺旋桨飞机俯仰力矩特性计算方法,充分考虑螺旋桨飞机迎角、速度、发动机拉力、发动机数量、发动机短舱尺寸与位置、螺旋桨直径与转速、襟翼偏转角、襟翼弦长、机翼展弦比对俯仰力矩的影响,准确计算螺旋桨拉力、桨盘法向力、螺旋桨滑流产生与水平尾翼下洗角变化等动力影响产生的俯仰力矩系数,进而能够准确得出螺旋桨飞机的俯仰力矩系数,用以螺旋桨飞机的俯仰力矩计算,可为螺旋桨飞机的设计、改进及其操控提供有效支撑。


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    Title :

    Propeller aircraft pitching moment characteristic calculation method considering dynamic influence


    Additional title:

    一种考虑动力影响的螺旋桨飞机俯仰力矩特性计算方法


    Contributors:

    Publication date :

    2025-02-21


    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