Safran

Safran Landing Systems

Nicolas Tran

Dominique Marie Christian Coupe

Pierre Jean Sallot

Thierry Patrick Chauvin

Mirna Bechelany

Sylvain Didier Leclercq

Quentin Roirand

Pietro Del Sorbo

A fibrous preform of a core portion of a fibrous reinforcement for a composite material part, the preform having an elongated shape along a longitudinal direction and being formed by first yarns extending along the longitudinal direction with second yarns transverse to the first yarns, the preform including two longitudinal ends intended for articulation with other parts and a median area located between the longitudinal ends, each longitudinal end having a thickness greater than a thickness of the median area, the median area including a stiffening segment including first non-woven yarns and each longitudinal end including a three-dimensional weave of the first yarns of this stiffening segment with second yarns.

Fibrous reinforcement for the manufacture of a composite part intended to be articulated with other parts

A method for manufacturing a fiber preform for a part, includes weaving a first core texture of elongate shape extending in a longitudinal direction and comprising, in cross section, a central portion having, on its opposite sides, two edges each including two non-interlinked fibrous portions, shaping the first texture which involves at least opening out the non-interlinked portions to form a positioning surface defined by the portions thus opened out and by an interleaved portion, situated between these opened-out portions, which can be formed by a prolongation of the central portion, and positioning a second belt texture over the opened-out lateral portions and the interleaved fibrous portion, the second texture forming a loop around the shaped first texture to define empty spaces for articulation to other parts.

Method for manufacturing a composite material part intended to be articulated to other parts

A tooling for winding a fibrous fabric on a support, allowing gradual modification of the shape of the support as winding progresses, and includes compaction devices to reduce wrinkling of the fabric obtained after compaction.

Machinery for winding a fibrous textured material, and associated winding method

Growing community of inventors

Moissy-Cramayel, France

Nicolas Tran