The invention belongs to the technical field of aircraft takeoff elevator preset skewness determination, and particularly relates to an aircraft takeoff elevator preset skewness determination method, which comprises the following steps of: setting aircraft takeoff elevator skewness delta e, and calculating changes of a pitch angle rate q, an attack angle alpha, a height H and a longitudinal acceleration nx in an aircraft takeoff process; the maximum pitch angle rate qmax, the maximum attack angle alpha max, the maximum sinkage delta Hmax and the longitudinal acceleration nx (gamma = 0) when the track angle is zero in the takeoff process of the aircraft are determined, whether the takeoff process of the aircraft meets the takeoff safety criterion or not is judged, and then the elevator skewness delta e corresponding to the takeoff safety criterion is obtained and serves as the preset elevator skewness delta pre of the aircraft takeoff, so that the method is convenient, rapid and high in practicability. The method is high in theoretical property, can quickly and accurately determine the preset skewness delta epre of the aircraft takeoff elevator, guarantees safe takeoff of an aircraft, and reduces the development cost and risk of the aircraft.

    本申请属于飞机起飞升降舵预置偏度确定技术领域,具体涉及一种飞机起飞升降舵预置偏度确定方法,通过设定飞机起飞升降舵偏度δe,计算飞机起飞过程中俯仰角速率q、迎角α、高度H、纵向加速度nx的变化,确定飞机起飞过程中最大俯仰角速率qmax、最大迎角αmax、最大下沉量ΔHmax、航迹角为零时纵向加速度nx(γ=0),判断飞机起飞过程是否符合起飞安全性准则,进而获取符合起飞安全性准则对应的升降舵偏度δe,作为飞机起飞升降舵预置偏度δe_pre,方便、快捷,理论性强,能够快速准确确定飞机起飞升降舵预置偏度δe_pre,保证飞机的安全起飞,降低飞机的研制成本及其风险。


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    Title :

    Method for determining preset skewness of aircraft takeoff elevator


    Additional title:

    一种飞机起飞升降舵预置偏度确定方法


    Contributors:
    LIU YUEFENG (author) / ZHAO YIFEI (author) / YAO HAILIN (author) / GAO BO (author) / LIU HUANYU (author)

    Publication date :

    2024-03-01


    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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