The invention relates to a tenon-and-mortise connected composite airfoil and a forming method thereof. The composite airfoil comprises an airfoil framework and an outer skin, the airfoil framework comprises a metal joint, a composite material solid area and foam which are connected in sequence; the composite material solid area and the foam are positioned and connected through a mortise and tenon joint structure. One end of the composite material solid area is connected with a slot on the metal joint through a plug; and the other end of the composite material solid area is connected with the tenon structure of the foam through a mortise structure. The composite material solid area comprises an upper cover with a tenon structure and a lower shell with a mortise structure, and the upper cover and the lower shell are connected in a positioning mode through the tenon and mortise structure. Compared with a traditional airfoil, the rigidity distribution of the composite airfoil is more reasonable, the elastic deformation capacity is higher, the internal mass is better, connection is firmer when the composite airfoil bears the action of bending moment and torque, the bearing capacity of the airfoil can be remarkably improved, and the composite airfoil is made to be lighter on the basis that the aircraft dynamics requirement is met.
本发明涉及一种榫卯连接的复合材料翼面及其成型方法。该复合材料翼面包括翼面骨架和外蒙皮;所述翼面骨架包括依次连接的金属接头、复合材料实心区和泡沫;所述复合材料实心区与所述泡沫之间通过榫卯结构定位和连接。所述复合材料实心区的一端通过插头与所述金属接头上的插槽连接;所述复合材料实心区的另一端通过卯结构与所述泡沫的榫结构连接。所述复合材料实心区包含具有榫结构的上盖和具有卯结构的下壳,上盖和下壳通过榫卯结构定位连接。本发明的复合材料翼面的刚度分配较传统翼面更合理,弹性变形能力更强,内部质量更优,在承受弯矩和扭矩的作用时连接更牢固,可以显著提升翼面的承载能力,使其在满足飞行器动力学要求的基础上质量更轻。
Mortise and tenon connection composite airfoil and forming method thereof
一种榫卯连接的复合材料翼面及其成型方法
2023-03-07
Patent
Electronic Resource
Chinese
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