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    Method for modeling a non-axisymmetric surface
    1.
    发明申请
    Method for modeling a non-axisymmetric surface 审中-公开
    非轴对称表面建模方法

    公开(公告)号：US20160154901A1

    公开(公告)日：2016-06-02

    申请号：US14903559

    申请日：2014-07-07

    Applicant: SNECMA

    Inventor： Damien Joseph Cellier ,  Vincent Perrot ,  Matthieu Jean Luc Vollebregt ,  Nicolas Jean Fernand Pignier

    IPC: G06F17/50

    CPC classification number: G06F17/50 ,  G06F17/5009 ,  G06F17/5086

    Abstract: The present invention relates to a method for modeling at least part of a non-axisymmetric surface (S) of one portion (2) of a part (1), the portion (2) being bounded by a first and a second extremal planes (PS, PR). The method is characterized in that it includes the implementation, by a means (11) for processing data from a device (10), of the following steps: (a) modeling at least two basic non-axisymmetric surfaces (Sk, SI, SE) making up said surface (S), each of the basic surfaces (Sk, SI, SE) extending between both extremal planes (PS, PR) of the portion (S) that are juxtaposed so as to have a junction of at least C1 at the extremal planes (PS, PR) and at least one discontinuity; (b) constructing at least one C1 connection curve (CR) tangential to the first and second surfaces; (c) locally modifying the first and second basic surfaces (Sk, SI, SE) such as to keep to said connection curve (CR) near said discontinuity; and (d) restoring, on one interface (13) of said device (10), said at least part of the obtained surface (S).

    Abstract translation: 本发明涉及一种用于对部分（1）的一部分（2）的非轴对称表面（S）的至少一部分进行建模的方法，所述部分（2）由第一和第二极平面（ PS，PR）。 该方法的特征在于，其包括通过用于处理来自装置（10）的数据的装置（11）的实现，以下步骤：（a）对至少两个基本非轴对称表面（Sk，SI，SE ）构成所述表面（S），在所述部分（S）的两个极平面（PS，PR）之间延伸的基本表面（Sk，SI，SE）中的每一个并置，以便具有至少C1 在极地（PS，PR）和至少一个不连续性; （b）构造与第一和第二表面相切的至少一个C1连接曲线（CR）; （c）对所述第一和第二基本表面（Sk，SI，SE）进行局部修改，以便在所述不连续处附近保持所述连接曲线（CR）; 和（d）在所述装置（10）的一个界面（13）上恢复所获得的表面（S）的至少一部分。

    COMPRESSOR CASING COMPRISING CAVITIES WITH OPTIMISED SETTING
    2.
    发明申请
    COMPRESSOR CASING COMPRISING CAVITIES WITH OPTIMISED SETTING 有权
    压缩机箱包含优化设置的CAVIITY

    公开(公告)号：US20150078890A1

    公开(公告)日：2015-03-19

    申请号：US14390178

    申请日：2013-04-15

    Applicant: SNECMA

    Inventor： Thierry Jean-Jacques Obrecht ,  Celine Ghilardi ,  Vincent Perrot

    IPC: F04D29/52 ,  F04D29/54 ,  F04D19/00

    CPC classification number: F04D29/526 ,  F04D19/00 ,  F04D29/164 ,  F04D29/541 ,  F04D29/542 ,  F04D29/685 ,  F05D2220/3216

    Abstract: A compressor for a turbine engine, including: a casing, at least one compressor stage including an impeller having stationary blades and an impeller having moving blades positioned downstream of the stationary blade impeller, and cavities in a thickness of the casing that are disposed along a circumference of the casing opposite the moving blades. The cavities, which are elongate and extend along a main direction of orientation, are closed upstream and downstream by upstream and downstream faces respectively, and an upstream border and a downstream border are formed at the intersections between same and the casing. The cavities are offset in relation to the moving blades to overlap the moving blade impeller in the upstream portion, thereby covering the upstream end thereof. The downstream border of the cavities is oriented parallel to the chord at the head of the moving blade.

    Abstract translation: 一种用于涡轮发动机的压缩机，包括：壳体，包括具有固定叶片的叶轮和具有位于固定叶片叶轮下游的动叶片的叶轮的至少一个压缩机台，以及沿着所述壳体的厚度设置的壳体的空腔， 壳体与动叶片相对的周长。 沿着主要取向方向延伸并延伸的空腔分别由上游侧和下游侧的上游侧和下游侧封闭，并且上游边界和下游边界形成在其与外壳之间的交叉处。 空腔相对于活动叶片偏移，与上游部分中的动叶片叶轮重叠，从而覆盖其上游端。 空腔的下游边界平行于动叶片头部的弦。

    Compressor casing comprising cavities with optimised setting
    4.
    发明授权
    Compressor casing comprising cavities with optimised setting 有权

    公开(公告)号：US10024336B2

    公开(公告)日：2018-07-17

    申请号：US14390178

    申请日：2013-04-15

    Applicant: SNECMA

    Inventor： Thierry Jean-Jacques Obrecht ,  Celine Ghilardi ,  Vincent Perrot

    IPC: F04D29/52 ,  F04D29/16 ,  F04D29/54 ,  F04D29/68 ,  F04D19/00

    Abstract: A compressor for a turbine engine, including: a casing, at least one compressor stage including an impeller having stationary blades and an impeller having moving blades positioned downstream of the stationary blade impeller, and cavities in a thickness of the casing that are disposed along a circumference of the casing opposite the moving blades. The cavities, which are elongate and extend along a main direction of orientation, are closed upstream and downstream by upstream and downstream faces respectively, and an upstream border and a downstream border are formed at the intersections between same and the casing. The cavities are offset in relation to the moving blades to overlap the moving blade impeller in the upstream portion, thereby covering the upstream end thereof. The downstream border of the cavities is oriented parallel to the chord at the head of the moving blade.

    TURBOMACHINE ROTOR BLADE
    5.
    发明申请
    TURBOMACHINE ROTOR BLADE 有权
    涡轮转子叶片

    公开(公告)号：US20150118059A1

    公开(公告)日：2015-04-30

    申请号：US14390566

    申请日：2013-04-03

    Applicant: SNECMA

    Inventor： Vincent Perrot ,  Julien Cointe ,  Jean-Francois Rios

    IPC: F04D29/38 ,  F04D19/00 ,  F01D5/14

    CPC classification number: F01D5/141 ,  F01D5/14 ,  F04D19/002 ,  F04D29/324 ,  F04D29/384 ,  F05D2220/36 ,  F05D2250/38 ,  Y02T50/673

    Abstract: A turbomachine rotor blade including a blade root and a blade tip spaced apart by a blade height, including at least one intermediate segment between the blade root and the blade tip that presents forward sweep over at least 50% of the blade height, and a distal segment with backward sweep between the intermediate segment and the blade tip, the distal segment also presenting a positive tangential angle of inclination.

    Abstract translation: 一种涡轮机转子叶片，包括叶片根部和叶片顶端，叶片顶端间隔开叶片高度，包括在叶片根部和叶片尖端之间的至少一个中间部分，其向前扫掠至少50％的叶片高度，以及远端 在中间段和叶片尖端之间具有向后扫掠的段，远端段也呈现正切向倾角。

    Method for modeling a non-axisymmetric surface
    6.
    发明授权
    Method for modeling a non-axisymmetric surface 有权

    公开(公告)号：US10216867B2

    公开(公告)日：2019-02-26

    申请号：US14903559

    申请日：2014-07-07

    Applicant: SNECMA

    Inventor： Damien Joseph Cellier ,  Vincent Perrot ,  Matthieu Jean Luc Vollebregt ,  Nicolas Jean Fernand Pignier

    IPC: G06F17/50

    Abstract: A method for modeling at least part of a non-axisymmetric surface (5) of one portion (2) of a part (1). The portion (2) is bounded by first and second extremal planes (PS, PR). The method includes processing data from a device (10), by: (a) modeling at least two basic non-axisymmetric surfaces (Sk, SI, SE) making up the surface, each of the basic surfaces (Sk, SI, SE) extending between both extremal planes (PS, PR) of the portion (S); (b) constructing at least one connection curve (CR) tangential to the first and second surfaces; (c) locally modifying the first and second basic surfaces (Sk, SI, SE) to keep to the connection curve (CR) near a discontinuity; and (d) restoring, at least part of the obtained surface (5).

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