The invention provides a method for determining wing deformation limiting conditions of a flying wing layout aircraft, and the method comprises the following steps: solving rigid configuration aerodynamic data, and solving the aerodynamic data of a rigid aircraft without considering the elastic deformation of the aircraft; solving elastic configuration aerodynamic data: assuming a wing deformationamount, reconstructing an airplane model, namely the elastic configuration, and solving the aerodynamic data; solving the corresponding relationship between the deformation level and the aerodynamiccharacteristic change, and acquiring the corresponding aerodynamic characteristic variable quantity by assuming different deformation levels to form the corresponding relationship; solving wing deformation limiting conditions, and solving wing deformation allowable quantity according to the corresponding relation between the deformation level and aerodynamic characteristic change and in combination with the aerodynamic characteristic allowable change quantity. Deformation limiting conditions are provided at the beginning of design, it is guaranteed that aerodynamic design does not deviate froma target value, and meanwhile, the reference is provided for structural design; the number of iterations of aerodynamic-structural design is reduced, and the aircraft design period is shortened; andthe scheme design of the flying wing layout aircraft is efficient and accurate.
本发明提出一种确定飞翼布局飞机机翼变形限制条件的方法,步骤为,刚性构型气动数据求解,不考虑飞机的弹性变形,求解刚性飞机的气动数据;弹性构型气动数据求解,通过假设一个机翼变形量,重构飞机模型,即弹性构型,进行气动数据求解;变形水平与气动特性变化对应关系求解,通过假设不同的变形水平,获取相应的气动特性变化量,形成对应关系;机翼变形限制条件求解,通过变形水平与气动特性变化的对应关系,结合气动特性允许变化量,求解出机翼变形允许量。本发明在设计之初就提出变形限制条件,保证气动设计不偏离目标值,同时为结构设计提供参考;减少了气动‑结构设计的迭代次数,缩短飞机设计周期;使飞翼布局飞机方案设计高效、准确。
Method for determining wing deformation limiting conditions of flying wing layout aircraft
一种确定飞翼布局飞机机翼变形限制条件的方法
2020-07-10
Patent
Electronic Resource
Chinese
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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