Anti lateral-torsional buckling structural member of an aircraft fuselage

摘要

A frame of an aircraft fuselage structure made from composite material, which includes a skin and several stringers fixed on the skin. The frame includes a profile elongated in a longitudinal direction which is hollow over at least a portion of its length. The profile is mounted on two legs. Each leg, intended to be fixed on the skin, includes a first portion extending continuously over the whole length of the profile and a second portion extending from this continuous portion so as to form several openings spaced apart in the longitudinal direction of the profile, in each of which a stringer passes. The presence of the hollow profile in the frame and the structure of the legs makes it possible to dispense with clips and cleats.

主权项

1. A structural member of an aircraft fuselage, the structural member comprising:
a profile elongated in a longitudinal direction, the profile being hollow over at least a portion of its length, the profile comprising two opposite flanks; and two legs on which said profile is mounted, each leg comprising a first portion extending continuously over the whole length of the profile and a second portion extending from said first portion so as to form in the longitudinal direction of the profile several openings that are spaced apart, wherein the legs are formed of two separate plates each fixed at the level of the first portion, on one of the two opposite flanks of the profile respectively.