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    • 4. 发明公开
    • REALISATION D'UNE STRUCTURE FIBREUSE A EPAISSEUR EVOLUTIVE PAR TISSAGE 3D
    • HERSTELLUNG EINES FASERGEBILDES VARIIERBARER DICKE DURCH 3D-WEBEN
    • EP2350363A1
    • 2011-08-03
    • EP09795478.8
    • 2009-11-20
    • Snecma Propulsion Solide
    • COUPE, DominiqueBOUILLON, EricDAMBRINE, Bruno
    • D03D25/00
    • The invention relates to a fibrous structure produced by multi-layer three-dimensional weaving with variable thickness, in a direction perpendicular to the warp (C) and weft (T) directions, in the warp direction while keeping the same number of woven warp threads at every point of the fibrous structure in the warp direction. During a transition to warp direction from a first portion of the fibrous texture to a second portion of the fibrous texture having a greater thickness than that of the first portion, the number of warp planes is reduced and the number of warp thread layers is increased without changing the number of warp threads, constituting at least one warp plane (Pl,...) in the second portion with warp threads from at least two different warp planes (Pl, P2,...) in the first portion.
    • 一种通过多层三维织造制造纤维结构的方法,该纤维结构具有沿着经纱方向变化的经向和纬向方向的厚度,同时保留了在所有点上编织的相同数量的经纱 的纤维结构的沿着经线的方向,其中在从所述纤维织构的第一部分到所述经纱方向的过渡期间,所述纤维织构的第二部分的厚度大于所述第一部分的厚度, 通过在第二部分中构成至少一个经纱,经纱从第一部分中的至少两个不同的翘曲面取得,经纱平面减少,经纱层数增加而不改变经纱的数量。