PRIMARY STRUCTURE FOR AIRCRAFT IN COMPOSITE MATERIAL HAVING IMPROVED CRASH AND STRUCTURAL COMPONENT WITH ENERGY ABSORBER.

摘要

The present invention essentially relates to a primary structure of an aircraft fuselage comprising at least a first connecting rod (15) connected at one end (16) to a crossmember (10) and at another end (17) to a frame (9). ) reinforcement. A second connecting rod (19) has one end (20) fixed to the structure below the end (17) of the first connecting rod (15), and another end (21) connected to the first connecting rod (15) by the intermediate of a slide link. A deformable member (25) is connected to the connecting rods (15, 19) so that, in the event of a crash, the compression forces press on the second connecting rod (19), so that the end (21) of the second connecting rod (19) slides along the first connecting rod (15) so as to longitudinally stretch the deformable member (25) to absorb the impact.