The invention discloses a ceramic matrix composite airfoil structure with a metal shaft, belongs to the technical field of composite airfoils, and solves the problem that a traditional metal material is not suitable for preparing an aircraft airfoil structure. The composite airfoil specifically comprises a composite airfoil, an airfoil framework is fixed in the composite airfoil, and a metal shaft is connected to the airfoil framework. The airfoil framework comprises a shaft box, and two sides of the shaft box are respectively connected with two connecting beams; the two turned-over edges on the two sides of the connecting beam are flush with the two side faces of the shaft box, and the two side faces of the shaft box are connected with the composite material wing faces; and the two connecting beams are respectively connected with the two connecting frames. According to the invention, the composite airfoil bears pneumatic pressure, the pneumatic pressure is transmitted to the metal shaft through the airfoil framework, and finally the force is transmitted to the upper surface of the aircraft cabin through the metal shaft, so that the pneumatic pressure borne by the composite airfoil is finally borne by the metal shaft; good mechanical properties are maintained, and high temperature resistance and ablation resistance of a ceramic-based composite material are achieved.
本发明公开了一种带金属轴的陶瓷基复合材料翼面结构,属于复合材料翼面技术领域,解决了传统的金属材料不适用于制备飞行器翼面结构的问题;具体包括复合材料翼面,复合材料翼面内部固定有翼面骨架,翼面骨架上连接有金属轴。翼面骨架包括轴盒,轴盒的两侧分别连接有两块连接梁;连接梁两侧的两个翻边与轴盒的两个侧面齐平,轴盒的两个侧面均与复合材料翼面连接;两个连接梁分别连接两块连接框。本发明中,复合材料翼面承受气动压力,气动压力通过翼面骨架传递到金属轴上,最后通过金属轴将力传递到飞行器舱体上面,所以复合材料翼面所承受的气动压力最终由金属轴承受;既保持了良好的力学性能,又拥有陶瓷基复合材料的耐高温、抗烧蚀性能。
Ceramic matrix composite airfoil structure with metal shaft
一种带金属轴的陶瓷基复合材料翼面结构
2025-05-06
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
AUXETIC MATERIALS AND STRUCTURES FOR CERAMIC MATRIX COMPOSITE AIRFOIL MANDRELS
European Patent Office | 2025
|European Patent Office | 2025
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