The invention belongs to the technical field of helicopter rotor blade structures, and relates to a blade girder three-dimensional woven structure and a weaving method. The three-dimensional woven structure is composed of foam (3) and foam wrapping cloth (2). The foam (3) is used as a filling piece and generates a preset shape through numerical control machining. The foam wrapping cloth (2) is wrapped on the surface of the foam (3), is made of glass cloth prepreg, and is cured with the foam (3) into a whole through heating and pressurizing. The paddle girder (1) adopts a three-dimensional weaving structure scheme, so that the structural integrity is good. Compared with a traditional paddle composite material layer, the anti-layering and anti-fracture capacity is high; and compared with a woven structure, the rigidity designability of the paddle is high.
本发明属于直升机旋翼桨叶结构技术领域,涉及一种桨叶大梁三维编织结构及编织方法。所述三维编织结构由泡沫(3)和泡沫包布(2)构成。泡沫(3)作为填充件,通过数控加工生成预定形状。泡沫包布(2)包裹在泡沫(3)表面,采用玻璃布预浸料,通过加温加压与泡沫(3)固化为一体。本发明桨叶大梁(1)采用三维编织结构方案,结构完整性好。相比传统桨叶复合材料层,抗分层、抗断裂能力强;相比机织结构,桨叶刚度可设计性强。
Three-dimensional weaving structure and weaving method for paddle girder
一种桨叶大梁三维编织结构及编织方法
2024-04-12
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge / 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 / D04C BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE , Flechten oder Herstellen von Spitzen, einschließlich Tüll- oder Ätzspitzen |
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