公开(公告)号：US10748336B2

公开(公告)日：2020-08-18

申请号：US16229057

申请日：2018-12-21

Applicant: Dassault Systemes

Inventor： Martin-Pierre Schmidt ,  Jean-Marc Lachaume ,  David Leo Bonner

IPC: G06T17/20 ,  G06T17/10

Abstract: The disclosure notably relates to a computer-implemented method for designing a three-dimensional (3D) finite element mesh of a 3D part that comprises a lattice structure. The method includes superposing a regular tiling of cells with the solid representation of a 3D part, partitioning the cells into two groups, a first group of cells, each in contact with the solid representation of the 3D part, and a second group of cells, none in contact with the solid representation. The method also includes finite element meshing a boundary of the solid representation, extracting a boundary finite element mesh of the first group of cells, computing a Boolean union of the finite element mesh and the extracted boundary finite element mesh, finite element meshing a volume of the computed Boolean union and merging the finite element meshes of meshed volume of computed Boolean union and the cells of the second group of cells.

公开(公告)号：US20190197773A1

公开(公告)日：2019-06-27

申请号：US16229057

申请日：2018-12-21

Applicant: Dassault Systemes

Inventor： Martin-Pierre SCHMIDT ,  Jean-Marc Lachaume ,  David Leo Bonner

IPC: G06T17/20 ,  G06T17/10

Abstract: The disclosure notably relates to a computer-implemented method for designing a three-dimensional (3D) finite element mesh of a 3D part that comprises a lattice structure. The method includes superposing a regular tiling of cells with the solid representation of a 3D part, partitioning the cells into two groups, a first group of cells, each in contact with the solid representation of the 3D part, and a second group of cells, none in contact with the solid representation. The method also includes finite element meshing a boundary of the solid representation, extracting a boundary finite element mesh of the first group of cells, computing a Boolean union of the finite element mesh and the extracted boundary finite element mesh, finite element meshing a volume of the computed Boolean union and merging the finite element meshes of meshed volume of computed Boolean union and the cells of the second group of cells.

公开(公告)号：US10796039B2

公开(公告)日：2020-10-06

申请号：US16230232

申请日：2018-12-21

Applicant: Dassault Systemes

Inventor： Martin-Pierre Schmidt ,  Jean-Marc Lachaume ,  David Leo Bonner

IPC: G06T17/20 ,  G06F30/20 ,  G05B19/4099

Abstract: The disclosure notably relates to a computer-implemented method for designing a three-dimensional (3D) finite element mesh of a 3D part that includes a lattice structure. The method includes superposing a regular tiling of cells with a solid representation of the 3D part, partitioning the cells into two groups, a first group of cells, each in contact with the solid representation, and a second group of cells, none in contact with the solid representation. The method also includes computing a Boolean union of the first group of cells and the solid representation, the Boolean union forming a volume, finite element meshing the volume of the computed Boolean union while preserving the set of faces of the first group of cells that are shared with the second group of cells, and merging the finite element meshes of the cells of the second group and the meshed volume of the computed Boolean union.

公开(公告)号：US20190197205A1

公开(公告)日：2019-06-27

申请号：US16230232

申请日：2018-12-21

Applicant: Dassault Systemes

Inventor： Martin-Pierre Schmidt ,  Jean-Marc Lachaume ,  David Leo Bonner

IPC: G06F17/50 ,  G05B19/4099

Abstract: The disclosure notably relates to a computer-implemented method for designing a three-dimensional (3D) finite element mesh of a 3D part that includes a lattice structure. The method includes superposing a regular tiling of cells with a solid representation of the 3D part, partitioning the cells into two groups, a first group of cells, each in contact with the solid representation, and a second group of cells, none in contact with the solid representation. The method also includes computing a Boolean union of the first group of cells and the solid representation, the Boolean union forming a volume, finite element meshing the volume of the computed Boolean union while preserving the set of faces of the first group of cells that are shared with the second group of cells, and merging the finite element meshes of the cells of the second group and the meshed volume of the computed Boolean union.