The invention provides an airfoil shear variable sweepback form design method, a deformed wing, a wing and an aircraft. The design method comprises the steps that in the shear variable sweepback process, the slightly chord length and the root chord length of the airfoil in the incoming flow direction are designed to be kept unchanged all the time; after any nth variable sweepback is designed, the coordinate of any point on the airfoil is determined by the following mode: according to the coordinate of the leading edge point of the wing root, the rotation angle xn of the front edge of the deformed airfoil corresponding to the nth variable sweepback and the coordinate of any point on the airfoil before the nth variable sweepback, determining the corresponding new coordinate of any point on the airfoil after shearing the variable sweepback angle xn, the arbitrary point includes a wing tip leading edge point. After the design of the shear variable sweepback form is adopted for the airfoil, the flow direction of the wing ribs is kept unchanged in the rotating process, the good aerodynamic configuration is maintained, and the structure has good stability in the deformation process.
本发明提供一种翼面剪切变后掠形式设计方法、变形翼、翼及飞行器。其中,设计方法包括:在剪切变后掠过程中,设计翼面顺来流方向稍弦长和根弦长始终保持不变;设计任意第n次变后掠后,翼面上任意点的坐标通过下述方式确定:根据翼根前缘点坐标、第n次变后掠对应的变形翼面前缘旋转角度χn、第n次变后掠前翼面上任意点的坐标确定该翼面上任意点剪切变后掠χn角度后对应的新的坐标,其中,所述任意点包括翼稍前缘点。翼面采用此种剪切变后掠形式设计后,使得翼肋在旋转过程中保持流向不变,维持良好的气动外形,使得结构在变形过程中具有较好的稳定性。
Airfoil shear variable sweepback form design method, deformable wing, wing and aircraft
翼面剪切变后掠形式设计方法、变形翼、翼及飞行器
2023-01-03
Patent
Elektronische Ressource
Chinesisch
Variable sweepback wing structure for aircraft and aircraft
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