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    Fibrous structure with grouping of floats
    1.
    发明授权
    Fibrous structure with grouping of floats 有权

    公开(公告)号：US10041196B2

    公开(公告)日：2018-08-07

    申请号：US15026287

    申请日：2014-09-29

    Applicant: SNECMA ,  SAFRAN

    Inventor： Matthieu Gimat ,  Yann Marchal ,  Dominique Coupe

    IPC: D03D25/00 ,  B29C70/22 ,  B29C70/24 ,  F01D5/28 ,  B29K105/08 ,  B29L31/08

    Abstract: A fiber structure includes a blank portion formed as a single part by three-dimensional weaving between a first plurality of yarn layers and a second plurality of yarn layers, the blank portion corresponding to all or part of a fiber reinforcement preform for a part made of composite material. Outside the blank portion, the fiber structure includes one or more two-dimensional fabric layers, each two-dimensional fabric layer grouping together the yarns of a single layer belonging to at least the first plurality of yarn layers and situated outside the blank portion.

    Fiber preform of π-shaped section, in particular for a fan platform made of composite material
    3.
    发明授权
    Fiber preform of π-shaped section, in particular for a fan platform made of composite material 有权
    纤维预制件为π形截面，特别适用于由复合材料制成的风扇平台

    公开(公告)号：US09551094B2

    公开(公告)日：2017-01-24

    申请号：US14365215

    申请日：2012-12-10

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Dominique Coupe ,  Monica Fruscello ,  Jonathan Goering

    IPC: D03D25/00 ,  B29C70/24 ,  B29B11/16 ,  B29C70/22

    CPC classification number: D03D25/005 ,  B29B11/16 ,  B29C70/222 ,  B29C70/24 ,  Y10T428/24174

    Abstract: A fiber preform of π-shaped section, the preform including a base with a first face and an opposite second face, legs extending from the second face, and a fiber structure woven as a single piece by three-dimensional weaving with a plurality of layers of warp or weft yarns linked interlinked by weft or warp yarns in a plurality of layers of weft or warp yarns. In each plane of the preform, the weft or warp yarns of a first group of weft or warp yarns extend continuously through the base between two opposite edges thereof, and weft or warp yarns of a second group of weft or warp yarns extend continuously from an end of one of the legs to an end of the other leg, passing via the base, with the yarns of the first group and the yarns of the second group presenting two mutual crossings.

    Abstract translation: 一种具有π形截面的纤维预成型体，所述预成型体包括具有第一面和相对的第二面的基部，从第二面延伸的腿，以及通过三维编织而成单片的纤维结构，所述纤维结构具有多层 通过纬纱或经纱在多层纬纱或经纱中连接的经纱或纬纱。 在预成型件的每个平面中，第一组纬纱或经纱的纬纱或经纱在其两个相对边缘之间连续延伸通过基底，并且第二组纬纱或经纱的纬纱或经纱从 一条腿的一端到另一条腿的一端，经过基座，第一组的纱线和第二组的纱线呈现两个相互交叉。

    METHOD AND SYSTEM FOR CUTTING A PREFORM INTENDED FOR THE PRODUCTION OF A TURBOMACHINE PART
    4.
    发明申请
    METHOD AND SYSTEM FOR CUTTING A PREFORM INTENDED FOR THE PRODUCTION OF A TURBOMACHINE PART 有权
    用于切割用于生产涡轮机零件的预制件的方法和系统

    公开(公告)号：US20150165571A1

    公开(公告)日：2015-06-18

    申请号：US14414772

    申请日：2013-07-02

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Philippe Marolle ,  Claire Rousseau

    IPC: B23P15/02

    CPC classification number: B23P15/02 ,  B29B11/16 ,  F01D5/282 ,  Y10T29/49332 ,  Y10T29/49995 ,  Y10T83/141

    Abstract: A method for cutting a preform usable for production of a turbomachine part and including a weaving of a plurality of threads, the threads including single threads that are visually identifiable, along a cutting contour calculated based on a preform model in which the threads have a reference arrangement, the method including: taking an image of the preform; processing the image to determine a deviation in an arrangement of the threads which are visually identifiable relative to the reference layout; correcting the cutting contour according to the deviation; and cutting the preform along the corrected cutting contour.

    Abstract translation: 一种用于切割可用于生产涡轮机部件并且包括多个螺纹的织造的预成型件的方法，所述螺纹包括可视地识别的单个螺纹，所述螺纹沿着基于预型件模型计算的切削轮廓，其中所述螺纹具有参考 该方法包括：拍摄预成型件的图像; 处理图像以确定相对于参考布局可视地识别的线程的布置的偏差; 根据偏差校正切割轮廓; 并沿校正的切割轮廓切割预成型件。

    FIBER PREFORM OF PI-SHAPED SECTION, IN PARTICULAR FOR A FAN PLATFORM MADE OF COMPOSITE MATERIAL
    5.
    发明申请
    FIBER PREFORM OF PI-SHAPED SECTION, IN PARTICULAR FOR A FAN PLATFORM MADE OF COMPOSITE MATERIAL 有权
    PI形成部分的纤维预制件，特别是用于复合材料的风扇平台

    公开(公告)号：US20140322485A1

    公开(公告)日：2014-10-30

    申请号：US14365215

    申请日：2012-12-10

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Dominique Coupe ,  Monica Fruscello ,  Jonathan Goering

    IPC: D03D25/00

    CPC classification number: D03D25/005 ,  B29B11/16 ,  B29C70/222 ,  B29C70/24 ,  Y10T428/24174

    Abstract: A fiber preform of π-shaped section, the preform including a base with a first face and an opposite second face, legs extending from the second face, and a fiber structure woven as a single piece by three-dimensional weaving with a plurality of layers of warp or weft yarns linked interlinked by weft or warp yarns in a plurality of layers of weft or warp yarns. In each plane of the preform, the weft or warp yarns of a first group of weft or warp yarns extend continuously through the base between two opposite edges thereof, and weft or warp yarns of a second group of weft or warp yarns extend continuously from an end of one of the legs to an end of the other leg, passing via the base, with the yarns of the first group and the yarns of the second group presenting two mutual crossings.

    Abstract translation: 所述预成型件包括具有第一面和相对的第二面的底座，从所述第二面延伸的腿部，以及通过三维编织而成为单件的纤维结构体，所述纤维预制件具有多个 纬纱或纬纱层由多根纬纱或经纱中的纬纱或经纱相互连接。 在预成型件的每个平面中，第一组纬纱或经纱的纬纱或经纱在其两个相对边缘之间连续延伸通过基底，并且第二组纬纱或经纱的纬纱或经纱从 一条腿的一端到另一条腿的一端，经过基座，第一组的纱线和第二组的纱线呈现两个相互交叉。

    DESIGN FOR A PART MADE FROM 3D WOVEN COMPOSITE MATERIAL
    6.
    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。

    METHOD AND SYSTEM FOR CUTTING A PREFORM INTENDED FOR THE PRODUCTION OF A TURBOMACHINE PART
    8.
    发明申请
    METHOD AND SYSTEM FOR CUTTING A PREFORM INTENDED FOR THE PRODUCTION OF A TURBOMACHINE PART 审中-公开

    公开(公告)号：US20180304421A1

    公开(公告)日：2018-10-25

    申请号：US16018938

    申请日：2018-06-26

    Applicant: SNECMA

    Inventor： Yann Marchal ,  Philippe Marolle ,  Claire Rousseau

    IPC: B23P15/02 ,  B29B11/16 ,  F01D5/28

    Abstract: A method for cutting a preform usable for production of a turbomachine part and including a weaving of a plurality of threads, the threads including single threads that are visually identifiable, along a cutting contour calculated based on a preform model in which the threads have a reference arrangement, the method including: taking an image of the preform; processing the image to determine a deviation in an arrangement of the threads which are visually identifiable relative to the reference layout; correcting the cutting contour according to the deviation; and cutting the preform along the corrected cutting contour.

    Part made from 3D woven composite material
    9.
    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.

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