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Apparatus and methods for joining composite structures of aircrafts

A technology of equipment and composite wings, applied in the field of aircraft, can solve problems such as increasing the cost of aircraft

Active Publication Date: 2015-01-14
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A sinusoidal rod made of titanium protects against this undesired corrosion, but adds significantly to the cost of the aircraft

Method used

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  • Apparatus and methods for joining composite structures of aircrafts
  • Apparatus and methods for joining composite structures of aircrafts
  • Apparatus and methods for joining composite structures of aircrafts

Examples

Experimental program
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Embodiment Construction

[0022] Aircraft wings are typically coupled to the central wing box of the fuselage via an upper wing joint assembly. For example, a double sine rod is an exemplary upper wing joint assembly commonly used in larger aircraft, such as jumbo jets, to couple the upper wing to the central wing box. The double sine bar has a cruciform profile comprising vertically extending flanges coupled to the sides of the fuselage skin and body ribs or the web of the central wing box. The double sine bar also includes flanges extending laterally or horizontally to each side of the vertically extending flanges that connect or engage (eg, mechanically couple) the upper surfaces of the outboard fins of the wing and the inboard fins of the central wing box . Specifically, the outboard and inboard tabs are directly coupled to the laterally extending flanges of the double sine bar via fasteners. Double sine rod type joints constructed of aluminum are commonly used for fins constructed of metallic ma...

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PUM

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Abstract

Apparatus and method for joining composite structures of aircrafts are disclosed. An example apparatus disclosed herein includes an inboard composite wing panel having a first end portion configured to be coupled to upper and lower inboard fittings composed of a metallic material and an outboard composite wing panel having a first end portion configured to be coupled to upper and lower outboard fittings composed of a metallic material. A side of body rib has a plate shaped first end portion composed of a metallic material. A fuselage frame is configured to be joined at one end of the upper inboard fitting, and the upper and lower inboard fittings and the upper and lower outboard fittings are coupled to the side of body rib at the plate shaped first end portion.

Description

technical field [0001] The present disclosure relates generally to aircraft, and more particularly, to apparatus and methods for joining composite structures of aircraft. Background technique [0002] Aircraft wings for commercial or airliner jets are typically assembled before being attached to the fuselage of the aircraft. For example, aircraft wing assemblies typically include forward and rear spars, each of which extends spanwise of the wing, and structural members such as stringers and ribs connected to the forward and rear spars, thereby forming an aircraft The skeletal structure or frame of the wing. Airfoils or skins, which may be formed from stringers, are coupled to a skeletal structure or frame to form an aircraft wing. [0003] To couple or attach aircraft wings to the fuselage, commercial aircraft employ wing-to-fuselage attachment joints. For example, a wing-to-fuselage joint joins an aircraft wing to a central wing box supported by the aircraft fuselage. A...

Claims

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Application Information

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IPC IPC(8): B64C3/18B64C1/26
CPCB64C1/26Y10T29/49622B64C1/06B64C3/18B64C3/26B64C3/182
Inventor Y·吉翁G·R·阿赫特纳J·斯特拉希拉
Owner THE BOEING CO
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