Brief description of embodiments of the composite structure self - stiffened, equipment for implementing a single piece and the various corresponding.

摘要

The present invention aims to produce, in a single operation, a structure of the laminate self - stiffened and substantially free of porosity in order to form a complex parts, of large dimensions and able to integrate the multiple functions of stiffening. For this purpose, it is proposed to use a natural drainage multiple of the resin in each elementary region of a mesh of the configuration of the skin are made from an estimation of the permeability. According to one embodiment, a piece of equipment for implementing the method of producing a structure self - stiffened according to the invention comprises a counter - shape (9) in which are cut out of the channels of the injection of resin (4). The counter - shape (9) is based on the elementary zones for infusion (2, 20a, 20b) of the grid which integrate the stiffeners (ra, rb) associated with the skin (1) and is covered in a sealed manner by a flexible bladder (10) for placing under vacuum. The injection channels (4) and the slots of the link (4f) are cut in the countermold (9) to the right of median lines (5, 5a, 5b) of the elementary zones (2, 20a, 20b). The interfaces of the reinforcement (8a, 8b) defines the boundaries between the elementary regions (2, 20a, 20b).