Composite landing gear fairing structure and integrated rapid forming method thereof

By using carbon fiber composite materials and integrated molding technology, the problems of complicated landing gear fairing manufacturing process and easy metal corrosion have been solved, achieving lightweight, durable and efficient production, and is suitable for the manufacturing of fairings with complex shapes.

CN122402773APending Publication Date: 2026-07-17SHENYANG AIRCRAFT CORP
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Patent Information

Application Number
CN202610780610.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing landing gear fairing manufacturing process is cumbersome, time-consuming, and inefficient, and the metal materials are easily corroded, making it difficult to meet the requirements of lightweight and durability.

Method used

The support ribs, side strips, and skin structure are designed using carbon fiber composite materials. Combined with an integrated rapid molding method, the support ribs, reinforcing ribs, and skin are formed in one step by using a combination of fragmented prepreg and continuous fiber prepreg.

Benefits of technology

It significantly reduces the weight of the fairing, improves production efficiency, enhances corrosion resistance and impact resistance, simplifies the manufacturing process, reduces costs, and improves the environmental adaptability and structural stability of the fairing.

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Abstract

本发明公开了一种复合材料起落架整流罩结构及其一体化快速成型方法,整流罩结构包括碳纤维复合材料制成的支撑肋组件、边条组件及蒙皮壁板;支撑肋组件包括前至后依次布置的多个横向支撑肋,边条组件包括前、左、右、后边条,支撑肋左右端分别与左、右边条相接;前、后边条与支撑肋之间及相邻支撑肋之间通过加强筋相连,所有加强筋首尾依次连接构成锯齿状结构;前边条、各横向支撑肋与后边条并行布置且长度逐渐增大,相邻间距逐渐减小;成型方法为:制备碎片预浸料和连续纤维预浸料预成型体,分区铺放于模具中,合模后于预设工艺条件下冷却脱模修整。本发明实现了复杂整流罩的一体化快速成型,减轻重量,提高防腐和承载性能。
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Citation Information

Patent Citations

  • Carbon fiber composite fairing, forming mold and forming method thereof

    CN112810183A

  • Composite assembly with integrally formed panels and stiffeners

    CN113276442A