A heat-resistant load-bearing integrated structure for aircraft and its forming method

Abstract

The embodiment of the present invention discloses an integrated heat-resistant load-bearing structure for an aircraft and a forming method thereof. The integrated heat-resistant load-bearing structure includes a main body; the main body is sequentially provided with a load-bearing layer, glue layer and a heat-proof layer, the load-bearing layer and the heat-proof layer are connected by an adhesive layer; the body part includes an axially symmetrical first half body part and a second half body part; the first half body part and the second half body respectively include several revolution body segments formed by generatrix lines with different slopes. Through the integrated heat-resistant load-bearing structure provided by the present invention, the lightweight and high-rigidity performance of the integrated heat-resistant load-bearing structure can be further improved; at the same time, the forming method of the integrated heat-resistant load-bearing structure can effectively solve the problem of the integrated heat-resistant load-bearing structure. Low molding precision, poor dimensional stability of the product, large interface stress, and low molding quality of the product have significantly improved the molding accuracy and molding quality of the heat-resistant load-bearing integrated structure.

Description

technical field [0001] The invention relates to the technical field of aircraft thermal protection, in particular to an integrated heat-resistant load-bearing structure for an aircraft and a forming method thereof. Background technique [0002] The integrated heat-resistant load-bearing structure is a major trend in the structural design and application of high-speed aircraft in the aerospace field today. The integrated heat-resistant load-bearing structure can make the aircraft structure have both heat-resistant performance and load-bearing performance, and at the same time greatly reduce the system cost of the aircraft structure. Weight, increase the payload ratio, so as to ensure that the aircraft is advanced, reliable and economical. [0003] The combination of the shell skeleton of the aircraft and the heat-resistant load-bearing integrated structure is a commonly used structural form of the aircraft cabin. In addition to aerodynamic pressure loads, the heat-resistant ...

AI Technical Summary

Problems solved by technology

However, when the shape of the aircraft cabin section is not a complete revolving body structure, but a special-shaped revolving body structure, if the co-curing or secondary co-curing process of the prior art is directly used to form the heat-resistant load-bearing integrated structure, It will lead to problems such as low molding precision of the final product, poor dimensional stability of the product, large interface stress, and low molding quality of the product.

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