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Shell of aircraft wing

A wing and shell technology, applied in the field of wing shells with a sandwich structure, can solve problems such as difficult to resist broken blades, and achieve the effect of low density and excellent impact resistance

Active Publication Date: 2013-06-19
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current aircraft wing skins are usually made of lightweight metals such as Al-Mg-Ti or their alloys, and some aircraft use composite materials, but the current wing skins are still difficult to withstand the aforementioned high-impact broken blades or is the other hit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The aircraft wing shell in the present invention has a sandwich structure, which is made of metal, fiber and ceramic layered composite materials, and has a sandwich structure composed of at least one metal layer / fiber layer / ceramic layer. The metal layer is made of aluminum, magnesium, titanium or corresponding alloy materials, the fiber layer is made of glass fiber, kevlar fiber, carbon fiber, silicon nitride, silicon carbide or zirconia fiber, and the ceramic material is a kind of high toughness porous zirconia ceramics.

[0012] The zirconia ceramic material adopts zirconia, magnesia, calcium oxide, yttrium oxide and cerium oxide with a weight ratio of 100:6:4:2:1, adding distilled water equal to the total weight of the above-mentioned various components, and in a ball mill Ball milling for 5 hours, then drying, granulation, molding, sintering at a temperature of 1600-1750 degrees Celsius for 1.8 hours, and a total heating time of 8 hours; then cooling to 1200 degree...

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PUM

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Abstract

The invention provides a shell of an aircraft wing. The shell of the aircraft wing comprises a sandwich structure and is made of metal, fiber and ceramic laminar composite. The shell of the aircraft wing is provided with at least one sandwich structure which is formed by a metal layer, a fiber layer and a ceramic layer. The shell of the aircraft wing is characterized in that the metal layer is made of aluminum or magnesium or titanium or corresponding alloy material, the fiber layer is made of glass fiber or Kevlar fiber or carbon fiber or silicon nitride fiber or silicon carbide fiber or zirconium dioxide fiber, and the ceramic layer comprises zirconium oxide, magnesium oxide, calcium oxide, yttrium oxide and cerium oxide. The shell of the aircraft wing is high in rigidity, good in toughness and light in mass and has excellent shock resistance.

Description

technical field [0001] The invention relates to an aircraft wing shell, in particular to a wing shell with a sandwich structure. Background technique [0002] At present, large commercial jet aircraft usually adopt high-thrust turbofan aeroengines. This type of turbofan aeroengines all use large-size fan blades, the largest fan blade diameter can reach 3m, and the tangent line at the tip of the fan blade during operation If the speed exceeds 450m / s, the tangential speed of the turbofan blade tip will be higher with the development of the turbofan aeroengine in the future. Blades running at high speed are affected by impact damage from foreign objects or high-frequency vibration fatigue, and blade fracture failures will inevitably occur. A broken blade has high energy, and if the blade penetrates the nacelle, it could cause damage to the wing skin near where the engine is mounted, endangering the safety of aircraft passengers. Current aircraft wing skins are usually made of...

Claims

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Application Information

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IPC IPC(8): B64C3/26B32B15/04C04B35/48C04B35/622
Inventor 狄春保朱琪美张和平张俊
Owner LIYANG TECH DEV CENT