Detachable integral slat trailing edge structure

Abstract

The invention belongs to the technical field of structural design of airplanes and particularly relates to a detachable integral slat trailing edge structure. The detachable integral slat trailing edge structure is characterized in that a slat trailing edge takes the shape of a triangular wedge and comprises an upper wall plate (1), a composite enclosing frame (2) and a foam core (3), wherein the upper wall plate (1) is formed by laying carbon fiber fabric; the composite enclosing frame (2) is formed by laying carbon fiber fabric; the foam core (3) is placed in the cavity formed by the upper wall plate (1) and the composite enclosing frame (2); RTM one-step forming is performed after the carbon fiber fabric of all the parts are laid layer by layer. Compared with the traditional composite slat trailing edge, the detachable integral slat trailing edge structure requires fewer parts, fewer manufacturing molds and lower cost; the integral slat trailing edge has higher strength and rigidity than the traditional composite slat trailing edge, is detachable and is easy to maintain and replace.

Description

technical field [0001] The invention belongs to the technical field of aircraft structure design, and in particular relates to an integral detachable slat tail edge structure. Background technique [0002] The trailing edge of the traditional slat composite material is generally made of multiple parts such as the upper wall panel, the honeycomb core, the lower wall panel, and the channel beam through secondary curing and cementation. This form of trailing edge forming is relatively simple, but due to the large number of parts, a large number of molds are required and the cost is high. Moreover, due to the small size of the trailing edge, the strength of the cemented surface is also weak. Moreover, the trailing edge of the slat is generally riveted with the skin of the slat and cannot be disassembled, because when the slat is retracted, the lower surface of the trailing edge and the upper surface of the fixed leading edge of the wing will be worn and easily damaged. Once th...

AI Technical Summary

Problems solved by technology

This form of trailing edge forming is relatively simple, but due to the large number of parts, a large number of molds are required and the cost is high

Moreover, due to the small size of the trailing edge, the strength of the cemented surface is also weak

Moreover, the trailing edge of the slat is generally riveted with the skin of the slat and cannot be disassembled, because when the slat is retracted, the lower surface of the trailing edge and the upper surface of the fixed leading edge of the wing will be worn and easily damaged

Once the trailing edge is damaged, the entire slat needs to be replaced, which is expensive to repair

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