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).

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。