Aircraft wing trailing edge composite bulkhead structure and manufacturing method thereof

Abstract

The invention discloses an aircraft wing trailing edge composite bulkhead structure and a manufacturing method. The front end of the bulkhead structure is connected with an aircraft wing box section,the two sides of the bulkhead structure are adjacent to a movable wing surface; the bulkhead structure is a wedge-shaped cantilever structure integrally formed by a composite, the front end of the bulkhead structure is provided with an open cavity, and the two sides of the bulkhead structure are parallel to the movable wing surface; the bulkhead structure comprises an outer panel and a bulkhead core; the outer panel wraps the bulkhead core to form an integrated structure, and the upper surface and the lower surface of the outer panel are theoretical appearances of an aircraft wing; the bulkhead core comprises an inner panel and a foam core; the inner panel is located on the front section of the bulkhead structure and is a trapezoid frame of which the front end is open, and the inner panelis matched with the appearance of a front end cavity of the bulkhead structure; and the foam core is located on the rear section of the bulkhead structure and is a trapezoid table made of the foam core, and the front end of the foam core adheres to the rear end of the inner panel.

Description

technical field [0001] The application relates to aircraft design and manufacturing technology, in particular to an aircraft wing trailing edge composite material bulkhead structure and a manufacturing method thereof. Background technique [0002] A bulkhead structure is generally arranged between different movable wing surfaces at the trailing edge of the aircraft wing. This type of bulkhead structure is a cantilever structure that is connected to the wing box section at the front side of the course and flush with the tail of the movable wing surface at the rear side. , its main function is to maintain the aerodynamic shape of the wing airfoil, reduce airflow resistance, and provide support for the extrusion and sealing of the rubber profile on the end face of the movable wing. Due to the high height of the rear spar of the wing and the generally low height of the aerodynamic shape of the tail of the wing, this kind of bulkhead structure changes drastically in the height of...

AI Technical Summary

Problems solved by technology

On the one hand, the weight of this component is heavy, it is easy to crack under the long-term action of aerodynamic load, and the fatigue performance is poor; on the other hand, in order to ensure the aerodynamic shape, precision requirements and surface quality of the wing, the outer surface of the part must be finished and formed , and the assembly of parts also requires the use of a special frame, which increases the production cost of the bulkhead

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