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1. 发明授权

US5892515A Method and apparatus for dividing shape expressed on three-dimensional space into elements 失效
标题翻译：将在三维空间上表示的形状分割为元素的方法和装置
公开(公告)号：US5892515A
公开(公告)日：1999-04-06
申请号：US560012
申请日：1995-11-17
申请人： Chie Kobayashi , Ichiro Nishigaki , Yoshifumi Yamashita , Hiromitsu Moriyama , Hiromi Aoyama , Keiko Hoshino , Makoto Onodera
发明人： Chie Kobayashi , Ichiro Nishigaki , Yoshifumi Yamashita , Hiromitsu Moriyama , Hiromi Aoyama , Keiko Hoshino , Makoto Onodera
IPC分类号： G06T17/20 , G06T17/00
CPC分类号： G06T17/20
摘要： A shape model as an object to be analyzed and division information used to produce a finite element mesh are entered, and a recognition model is produced by allocating each edge line segmented by structural points of the shape model to any one coordinate axial direction in an orthogonal coordinate system. A mapping model is produced in which an orthogonal lattice is produced on a surface and the inside of an approximated shape model, and is displayed on a screen. The mapping model is modified by a system user in an interactive operation. A finite element mesh is generated from lattice points of the modified mapping model. The data input by the system user is processed in an input/output data processing unit, and shape model data of the object to be analyzed is produced in a shape model producing unit. Based on the division information input by the system user, a finite element mesh is generated on the shape model by a finite element mesh producing unit. The line segment allocation directions of the recognition model are displayed in a recognition model producing unit, so that an allocation direction can be modified in a recognition model modifying unit by the system user in a interactive mode. The finite element model data produced from the optimized recognition model is registered into a database.
摘要翻译：输入作为要分析对象的形状模型和用于产生有限元网格的分割信息，并且通过将形状模型的结构点分割的每个边缘线分配成正交的任何一个坐标轴方向，产生识别模型坐标系。产生映射模型，其中在近似形状模型的表面和内部产生正交格子，并且显示在屏幕上。映射模型由交互式操作中的系统用户进行修改。从修改的映射模型的格点生成有限元网格。在输入/输出数据处理单元中处理由系统用户输入的数据，并在形状模型生成单元中生成待分析对象的形状模型数据。基于系统用户输入的分割信息，通过有限元网格生成单元在形状模型上生成有限元网格。识别模型的线段分配方向被显示在识别模型生成单元中，从而可以在交互模式下由系统用户在识别模型修改单元中修改分配方向。将从优化识别模型生成的有限元模型数据注册到数据库中。

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