An aircraft front fuselage integral frame structure

Abstract

The application belongs to the field of aircraft structure design, and in particular relates to an integral frame structure of an aircraft front fuselage. To solve the negative impact of the traditional aircraft front fuselage structure, multiple longitudinal girders, transverse reinforcement frames, and longitudinal plates of the overall frame structure of the aircraft front fuselage in the present application are integrally formed, and the surface of the longitudinal girder facing the outside of the aircraft Conformal with the surface of the transverse reinforcement frame facing the outside of the aircraft, the surface of the longitudinal plate and the surface of the longitudinal girder facing the outside of the aircraft, the surface of the longitudinal plate and the surface of the transverse reinforcement frame facing the outside of the aircraft are in the same shape; Significantly reduce structural weight, reduce fatigue weak links, reduce the number of structural parts, standard parts, and tooling, and shorten the manufacturing cycle.

Description

technical field [0001] The application belongs to the field of aircraft structure design, and in particular relates to an integral frame structure of an aircraft front fuselage. Background technique [0002] The metal main load-bearing skeleton structure is the main part of the airframe structure. The large parts of the front fuselage are an important part of the aircraft body platform. And transfer the corresponding load to provide shelter for the pilot. [0003] In the traditional front fuselage structure, each component part needs to be manufactured separately, and then connected through a large number of connectors such as corner boxes and corner pieces, and fasteners such as bolts, rivets, and pins; it is affected by the shape, surrounding structure and connection. Many details need to be considered in the design, which also brings many negative effects. [0004] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of ...

AI Technical Summary

Problems solved by technology

[0003] In the traditional front fuselage structure, each component part needs to be manufactured separately, and then connected through a large number of connectors such as corner boxes and corner pieces, and fasteners such as bolts, rivets, and pins; it is affected by the shape, surrounding structures and connections. Influenced by restrictive conditions, many details need to be considered in the design, which also brings many negative effects

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