The invention discloses a method for determining wing deformation limiting conditions of a flying wing layout aircraft. The method comprises the steps of rigid configuration aerodynamic data solving,elastic configuration aerodynamic data solving, deformation level and aerodynamic characteristic change corresponding relation solving and wing deformation limiting condition solving. In the elastic configuration aerodynamic data solving, through assuming a wing deformation amount, an aircraft model is reconstructed, and aerodynamic data is solved; and in the deformation level and aerodynamic characteristic change corresponding relation solving, different deformation levels are supposed, a corresponding aerodynamic characteristic variable quantity is acquired, a wing deformation limiting condition is solved, and through the corresponding relationship between a deformation level and an aerodynamic characteristic change, a wing deformation allowable quantity is solved in combination with the aerodynamic characteristic allowable variable quantity. At the beginning of the design, the wing deformation limiting conditions can be provided, an aerodynamic design is ensured not to deviate froma target value, and meanwhile a reference is provided for a structural design; the number of iterations of aerodynamic-structural design actions is reduced, and an aircraft design period is shortened; and high efficiency and accuracy of an aircraft design are ensured.
本发明公开一种确定飞翼布局飞机机翼变形限制条件的方法,包括:刚性构型气动数据求解、弹性构型气动数据求解、变形水平与气动特性变化对应关系求解、机翼变形限制条件求解;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,求解气动数据;变形水平与气动特性变化对应关系求解,假设不同的变形水平,获取相应的气动特性变化量,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可提出机翼变形限制条件,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‑结构设计动作的迭代次数,缩短飞机设计周期;保证飞机设计的高效、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
2020-11-20
Patent
Electronic Resource
Chinese
IPC: | 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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