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    DESIGN FOR A PART MADE FROM 3D WOVEN COMPOSITE MATERIAL
    2.
    发明申请
    DESIGN FOR A PART MADE FROM 3D WOVEN COMPOSITE MATERIAL 有权
    从三维WOVEN复合材料制成的零件设计

    公开(公告)号：US20140316547A1

    公开(公告)日：2014-10-23

    申请号：US14358551

    申请日：2012-11-12

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Jean-Noel Mahieu

    IPC: G06F17/50

    CPC classification number: G06F17/50 ,  B29C70/24 ,  G01B11/24

    Abstract: A method designing a part made of 3D woven composite material, performed by a computer, the method including: obtaining shape data representing an outside surface of the part; for each point of a set of points of the outside surface, determining a distance between the point and a projection of the point onto a target surface, the projection being along a predetermined projection direction; determining a structure of a 3D woven preform as a function of the determined distances; and obtaining projection data specifying a projection direction as a function of a position of a point on the outside surface of the part, wherein the projection direction that is used for at least some of the points of the set of points is determined during the determining a distance, as a function of the projection and as a function of the position of the point.

    Abstract translation: 一种由计算机执行的由3D编织复合材料制成的零件的方法，所述方法包括：获得表示所述零件的外表面的形状数据; 对于所述外表面的一组点的每个点，确定所述点与所述点到目标表面上的投影之间的距离，所述突起沿着预定的投影方向; 根据确定的距离确定3D编织预制件的结构; 并且获得指定作为所述部分的外表面上的点的位置的函数的投影方向的投影数据，其中在所述一组点的至少某些点处的所述投影方向在所述确定期间被确定 距离，作为投影的函数和作为点的位置的函数。

    FIBROUS STRUCTURE HAVING VARIABLE NUMBERING YARNS
    3.
    发明申请
    FIBROUS STRUCTURE HAVING VARIABLE NUMBERING YARNS 有权
    具有可变编号的纤维结构

    公开(公告)号：US20140369847A1

    公开(公告)日：2014-12-18

    申请号：US14364996

    申请日：2012-12-10

    Applicant: SNECMA

    Inventor： Bruno Jacques Gerard Dambrine ,  Dominique Coupe ,  Jonathan Goering ,  Brock Gilbertson ,  Jean-Noel Mahieu

    IPC: B29C70/22 ,  D03D25/00 ,  F01D5/14 ,  D03D41/00

    CPC classification number: B29C70/22 ,  B29C70/24 ,  B29L2031/08 ,  D03D25/005 ,  D03D41/004 ,  F01D5/147 ,  F01D5/282 ,  Y02T50/672 ,  Y10T428/24603

    Abstract: A fiber structure for reinforcing a composite material part, the structure being woven as a single piece by multilayer weaving between a first plurality of layers of yarns extending in a first direction and a second plurality of layers of yarns extending in a second direction. The second plurality of layers of yarns includes at least one layer of variable-weight yarns, each variable-weight yarn including a separable assembly of individual yarns, each having a determined weight. The fiber structure includes at least one portion of reduced thickness in which the variable-weight yarn presents a weight that is less than the weight that it presents prior to the reduced thickness portion.

    Abstract translation: 一种用于增强复合材料部件的纤维结构，所述结构通过在第一方向上延伸的第一多根纱线层和沿第二方向延伸的第二多根纱线层之间的多层织造而编织为单件。 第二多层纱线包括至少一层可变重量的纱线，每根可变重量纱线包括各自具有确定重量的单根纱线的可分离组件。 纤维结构包括减薄厚度的至少一部分，其中可变重量纱线的重量小于在减薄厚度部分之前呈现的重量。

    FIBROUS REINFORCEMENT STRUCTURE FOR COMPOSITE MATERIAL PART HAVING A REDUCED THICKNESS PORTION
    4.
    发明申请
    FIBROUS REINFORCEMENT STRUCTURE FOR COMPOSITE MATERIAL PART HAVING A REDUCED THICKNESS PORTION 有权
    具有减薄厚度部分的复合材料部件的纤维增强结构

    公开(公告)号：US20140334935A1

    公开(公告)日：2014-11-13

    申请号：US14364958

    申请日：2012-12-10

    Applicant: SNECMA

    Inventor： Bruno Jacques Gerard Dambrine ,  Dominique Coupe ,  Jonathan Goering ,  Jean-Noel Mahieu

    IPC: F01D5/14

    CPC classification number: F01D5/147 ,  B29C70/24 ,  D03D25/005 ,  F01D5/286 ,  F01D5/288 ,  F01D5/3092 ,  F05D2230/50 ,  Y02T50/672

    Abstract: A fiber structure reinforcing a composite material part woven as a single piece by multilayer weaving between plural first and second layers of yarns. The fiber structure includes a portion of decreasing thickness that presents: plural yarn withdrawal parts in surface continuity, with yarns interrupted from the first plural layers of yarns underlying the layer of yarns of the first plural layers of yarns situated in the surface of the structure; and plural yarn withdrawal parts in surface discontinuity, with yarns interrupted from the first plural layers of yams situated at the surface of the structure, each interrupted yarn replaced in the surface of the structure by a yarn of a layer of yarns underlying the first plural layers of yarns. The yarns of the second plural layers of yarns situated in the surface of the fiber structure are continuous over at least the entire portion of decreasing thickness.

    Abstract translation: 一种纤维结构，其通过多层第一和第二层纱线之间的多层织造来增强作为单件编织的复合材料部件。 所述纤维结构包括厚度减小的部分，所述部分呈现出多个纱线退出部分的表面连续性，纱线由位于所述结构表面的所述第一多层纱线的纱线下方的所述第一多层纱线中断; 并且多个纱线退出部分处于表面不连续状态，纱线从位于结构表面处的第一多个纱线中断，每个间断的纱线在结构的表面中被第一多个层下面的一层纱线 的纱线。 位于纤维结构表面的第二多根纱线的纱线至少在厚度减小的整个部分是连续的。

    Part made from 3D woven composite material
    5.
    发明授权
    Part made from 3D woven composite material 有权

    公开(公告)号：US09817923B2

    公开(公告)日：2017-11-14

    申请号：US14358551

    申请日：2012-11-12

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Jean-Noel Mahieu

    IPC: G06F17/50 ,  G01B11/24 ,  B29C70/24

    CPC classification number: G06F17/50 ,  B29C70/24 ,  G01B11/24

    Abstract: A method designing a part made of 3D woven composite material, performed by a computer, the method including: obtaining shape data representing an outside surface of the part; for each point of a set of points of the outside surface, determining a distance between the point and a projection of the point onto a target surface, the projection being along a predetermined projection direction; determining a structure of a 3D woven preform as a function of the determined distances; and obtaining projection data specifying a projection direction as a function of a position of a point on the outside surface of the part, wherein the projection direction that is used for at least some of the points of the set of points is determined during the determining a distance, as a function of the projection and as a function of the position of the point.

    FIBER PREFORM FOR A TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL AND HAVING AN INTEGRATED PLATFORM, AND A METHOD OF MAKING IT
    8.
    发明申请
    FIBER PREFORM FOR A TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL AND HAVING AN INTEGRATED PLATFORM, AND A METHOD OF MAKING IT 有权
    用于复合材料的涡轮发动机叶片的纤维预制件和具有整体平台的纤维预制件及其制造方法

    公开(公告)号：US20140369848A1

    公开(公告)日：2014-12-18

    申请号：US14371220

    申请日：2013-01-07

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Dominique Coupe ,  Jean-Noel Mahieu ,  Bruno Jacques, Gerard, Dambrine

    IPC: F01D5/28 ,  D03D3/00 ,  D03D1/00

    CPC classification number: F01D5/282 ,  B29B11/16 ,  B29C70/24 ,  B29D99/0025 ,  B29L2031/082 ,  D03D1/00 ,  D03D3/00 ,  D03D25/005 ,  D03D2700/01 ,  F05D2300/603 ,  F05D2300/6034

    Abstract: A method of making a fiber preform, and the preform, for fabricating a turbine engine blade out of composite material, the method including: making a single-piece fiber blank by three-dimensional weaving with layers of longitudinal yarns interlinked by yarns of layers of transverse yarns; and shaping the fiber blank to obtain a single-piece fiber preform including a portion forming an airfoil preform and at least one portion forming a platform preform. During weaving, yarns of a first group of longitudinal yarns are extracted from the fiber blank beside one of side faces of the blank to form a portion corresponding to a blade platform preform, and yarns of a second group of longitudinal yarns are inserted into the fiber blank with mutual crossing of the yarns of the first group and the yarns of the second group.

    Abstract translation: 一种用于制造复合材料制造涡轮发动机叶片的纤维预制件和预成型件的方法，所述方法包括：通过三维织造制造单件纤维坯料，其中由纵向纱线层互相连接， 横纱; 以及成形纤维毛坯以获得包括形成翼型件预成型件的部分和形成平台预制件的至少一个部分的单件式纤维预制件。 在编织过程中，第一组纵向纱线的纱线从坯料的侧面之一处的纤维坯料中提取出来，形成对应于刀片平台预成型件的部分，第二组纵向纱线的纱线插入纤维 与第一组的纱线和第二组的纱线相互交叉的坯料。

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