公开(公告)号：US10223830B2

公开(公告)日：2019-03-05

申请号：US15271587

申请日：2016-09-21

Applicant: Dassault Systemes

Inventor： David Leo Bonner ,  Auxkin Ortuzar Del Castillo ,  Denis Nouais

IPC: G06T17/20 ,  G06T19/00 ,  A41H3/00 ,  G06F17/50

Abstract: A computer-implemented method for designing a manufacturable garment provides a three-dimensional shape representing a garment segmented into a set of three-dimensional panels (3DP). Next the method computes for each three-dimensional panel, a corresponding flattened pattern (FP). The method defines a mesh (MF, M3D) on each of said three-dimensional panels and flattened patterns; and simulates a draping of the segmented three-dimensional shape over a three-dimensional manikin (MK) by progressively imposing a constraint that each mesh element (ME3) of said three-dimensional panels adopts dimensions (EEL) of a corresponding mesh element (MEF) of the corresponding flattened pattern while it conforms to the manikin shape. A computer program product, a non-volatile computer-readable data-storage medium and a Computer Aided Design system may carry out such a method. Also application of such a method to the manufacturing of a real garment.

公开(公告)号：US09928314B2

公开(公告)日：2018-03-27

申请号：US14684147

申请日：2015-04-10

Applicant: DASSAULT SYSTEMES

Inventor： David Leo Bonner

IPC: G06F17/50 ,  G06F17/10 ,  G06T17/00 ,  G06T15/08 ,  G06F17/17

CPC classification number: G06F17/50 ,  G06F17/10 ,  G06F17/175 ,  G06F17/5018 ,  G06F17/5086 ,  G06T15/08 ,  G06T17/00 ,  G06T2210/56 ,  G06T2215/06 ,  G06T2215/16

Abstract: The invention notably relates to a computer-implemented method for designing a three-dimensional modeled object that represents a physical entity. The method comprises providing sample points; determining a volumetric function, within a predetermined class of volumetric functions, as the optimum of an optimization program that explores orientation vectors defined at the sample points, wherein the optimization program penalizes a distance from the explored orientation vectors; and fitting the sample points with an isovalue surface of the volumetric function, wherein the program further penalizes oscillations of the fitted isovalue surface.

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：US20170109926A1

公开(公告)日：2017-04-20

申请号：US15271587

申请日：2016-09-21

Applicant: Dassault Systemes

Inventor： David Leo Bonner ,  Auxkin Ortuzar Del Castillo ,  Denis Nouais

IPC: G06T17/20 ,  G06T19/00

CPC classification number: G06T17/20 ,  A41H3/007 ,  G06F17/50 ,  G06F17/5018 ,  G06F2217/12 ,  G06F2217/32 ,  G06T19/006 ,  G06T2210/16

Abstract: A computer-implemented method for designing a manufacturable garment provides a three-dimensional shape representing a garment segmented into a set of three-dimensional panels (3DP). Next the method computes for each three-dimensional panel, a corresponding flattened pattern (FP). The method defines a mesh (MF, M3D) on each of said three-dimensional panels and flattened patterns; and simulates a draping of the segmented three-dimensional shape over a three-dimensional manikin (MK) by progressively imposing a constraint that each mesh element (ME3) of said three-dimensional panels adopts dimensions (EEL) of a corresponding mesh element (MEF) of the corresponding flattened pattern while it conforms to the manikin shape. A computer program product, a non-volatile computer-readable data-storage medium and a Computer Aided Design system may carry out such a method. Also application of such a method to the manufacturing of a real garment.

公开(公告)号：US11625516B2

公开(公告)日：2023-04-11

申请号：US16232802

申请日：2018-12-26

Applicant: DASSAULT SYSTEMES

Inventor： David Leo Bonner ,  Claus Bech Wittendorf Pedersen

IPC: B33Y50/02 ,  G06F30/23 ,  B33Y50/00 ,  B29C64/386 ,  B33Y10/00

Abstract: The disclosure notably relates to a computer-implemented method for designing a part by topology optimization. The method comprises defining a working volume for the optimization of the part and at least one boundary condition applied to the part, computing a vector field over the working volume, each vector of the field representing an optimal direction and a quantity of material corresponding to satisfy the at least one boundary condition, computing a set of flow lines by propagating from starting points in the vector field. For each flow line of the set, an element for the primary structure of the part is computed and a secondary structure of the part linking the set of primary as well as the secondary structure elements together is computed.

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.

公开(公告)号：US09589389B2

公开(公告)日：2017-03-07

申请号：US14684123

申请日：2015-04-10

Applicant: DASSAULT SYSTEMES

Inventor： David Leo Bonner ,  Pascal Sebah

IPC: G06T17/20 ,  G06F17/50 ,  G06T17/00 ,  G06F17/17

CPC classification number: G06T17/20 ,  G06F17/175 ,  G06F17/50 ,  G06F2217/08 ,  G06T17/00 ,  G06T2200/04 ,  G06T2200/24 ,  G06T2210/56

Abstract: The invention notably relates to a computer-implemented method for designing a three-dimensional modeled object comprising providing sample points of 3D curves sketched by a user; determining a volumetric function, within a predetermined class of volumetric functions, as the optimum of an optimization program that explores orientation vectors defined at the sample points under the constraint that the explored orientation vectors be normal to the 3D curves and respect a minimal rotation propagation condition over each 3D curve, wherein the optimization program penalizes a distance from the explored orientation vectors; and fitting the sample points with an isovalue surface of the volumetric function.

Abstract translation: 本发明特别涉及一种用于设计三维建模对象的计算机实现方法，包括提供由用户草拟的3D曲线的采样点; 确定在预定类别的体积函数内的体积函数作为最优化程序的最佳值，所述优化程序探索在所述探索的取向向量垂直于所述3D曲线并且遵守最小旋转传播条件的约束下在所述采样点处定义的取向向量 在每个3D曲线上，其中优化程序惩罚与探索的取向向量的距离; 并使用体积函数的等值面来拟合采样点。