公开(公告)号：US20210173979A1

公开(公告)日：2021-06-10

申请号：US17114577

申请日：2020-12-08

Applicant: Dassault Systemes Simulia Corp.

Inventor： Nikolai Gerzen ,  Claus Bech Wittendorf Pedersen ,  Thorsten Horst Henryk Michalski

IPC: G06F30/23 ,  G06F30/10 ,  G06T17/20

Abstract: A computer-implemented method of automatically determining an optimized design for manufacturing a real-world object includes: defining, in memory of a computer-based processor, a finite element model representing a real-world object, the finite element comprising a plurality of elements; evaluating, with the computer-based processor, a distribution of a design variable throughout a vicinity of the finite element model, using singular value decomposition (SVD), to produce a singular value for the design variable in each respective element in the vicinity of the finite element model; defining optimization constraints for the vicinity of the finite element model based on the singular values produced from the SVD; and optimizing the finite element model with respect to the design variable by locally enforcing a geometry of the real-world object in the vicinity based on the defined optimization constraints.

公开(公告)号：US20210165934A1

公开(公告)日：2021-06-03

申请号：US17107540

申请日：2020-11-30

Applicant: DASSAULT SYSTEMES

Inventor： Nicolas MONTANA ,  Andre LIEUTIER ,  Marc MONTEIL

IPC: G06F30/20 ,  G06T11/20 ,  G06T7/155

Abstract: A computer-implemented method for civil engineering is described that includes obtaining a watershed segmentation of a terrain. The watershed segmentation includes basins. The method further includes merging first basins of the watershed segmentation that each verify a smallness criterion, each with a second basin downstream to the first basin.

公开(公告)号：US20210133374A1

公开(公告)日：2021-05-06

申请号：US16987820

申请日：2020-08-07

Applicant: Dassault Systemes Simulia Corp.

Inventor： Pradeep Gopalakrishnan ,  Raoyang Zhang ,  Hudong Chen ,  Avinash Jammalamadaka

IPC: G06F30/25

Abstract: Disclosed are techniques for scalar solvers in flow simulations that include simulating using a scalar lattice velocity set in a computing system, movement of scalar particles representing a scalar quantity in a volume of fluid, with the scalar particles carried by flow particles of the volume of fluid, and with the movement of the scalar particles causing collisions among the scalar particles; and evaluating, a non-equilibrium post-collide scalar distribution function of a specified order that is representative of the scalar collision.

公开(公告)号：US10963811B2

公开(公告)日：2021-03-30

申请号：US15395021

申请日：2016-12-30

Applicant: DASSAULT SYSTEMES

Inventor： Xavier Grehant

IPC: G06N20/00 ,  G06F16/22 ,  G06F16/35 ,  G06F16/2455 ,  G06F16/901 ,  G06N7/00 ,  G06F16/903

Abstract: The invention notably relates to a computer-implemented method for selecting an appropriate decision by constraining options assessed with a model. The method comprises selecting a model capable of receiving inputs and providing output in response to an input; training a model with a set of data representing similar events; generating options that represent hypothetical events; computing target values by applying the trained model on the generated options; computing index for indexing the generated options and target values associated with the trained model; querying the said index for obtaining a selection of a set of options, the selection being performed according to a specific constraint; returning, as a result of the query, a subset of the set of the generated options, the subset being ranked according to the target values associated with each option.

公开(公告)号：US10929433B2

公开(公告)日：2021-02-23

申请号：US15629024

申请日：2017-06-21

Applicant: Dassault Systemes

Inventor： Remy Rorato

IPC: G06F16/00 ,  G06F16/28 ,  G06F16/904 ,  G06F16/242 ,  G06F16/583 ,  G06K9/00

Abstract: The invention notably relates to a computer-implemented method for querying a database. The database comprises 3D modeled objects that each represent a mechanical part. The database further comprises, for each 3D modeled object, a respective morphology signature. The method comprising: providing a query that includes a morphology criterion; returning, as results of the query, respective 3D modeled objects of the database, a respective 3D modeled object being returned based on an extent to which the respective 3D modeled object has a morphology signature that respects the morphology criterion. Such a method improves the field of searching mechanical parts in a database.

公开(公告)号：US20210004510A1

公开(公告)日：2021-01-07

申请号：US16921844

申请日：2020-07-06

Applicant: DASSAULT SYSTEMES

Inventor： Laurent MARINI

IPC: G06F30/15 ,  G06F30/12 ,  G06T17/30 ,  G06T17/10

Abstract: A computer-implemented method for designing, with a CAD system, a 3D modeled object representing a mechanical part. The method includes displaying a B-rep having faces and edges and representing at least a part of the mechanical part, selecting, by graphical user interaction, at least one face of the B-rep, and, automatically by the CAD system, recognizing a set of faces including the at least one face and representing a bump. The recognizing includes determining a first set of faces representing a depression and a second set of faces representing a protrusion, and selecting, among the first set of faces and the second set of faces, a set of faces having a shortest boundary curve perimeter and being different from both the selected at least one face and the B-rep. The first set of faces and the second set of faces both comprise the at least one face.

公开(公告)号：US20200342152A1

公开(公告)日：2020-10-29

申请号：US16855055

申请日：2020-04-22

Applicant: Dassault Systemes Simulia Corp.

Inventor： Alexander Jacobus Maria Van der Velden ,  Jing Bi ,  Subham Sett

IPC: G06F30/27 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/153

Abstract: A method includes simulating a process, with computer-based software, to produce virtual data about the process; identifying process parameters for a real-world version of the process; providing a real-world sensor to sense a parameter associated with the real-world version of the process; receiving sensor readings from the real-world sensor while the real-world version is being performed; and training a machine-learning software model to predict a behavior of the real-world sensor based on the virtual data about the process, the process parameters, and the sensor readings.

公开(公告)号：US10783707B2

公开(公告)日：2020-09-22

申请号：US16230841

申请日：2018-12-21

Applicant: Dassault Systemes

Inventor： Fernando Manuel Sanchez Bermudez ,  Mourad Boufarguine ,  Guillaume Randon

IPC: G06T17/20 ,  G06T17/30 ,  G06F30/00

Abstract: The disclosure notably relates to a computer-implemented method for 3D reconstruction. The method comprises providing a 3D point cloud representing a real object. The method also comprises fitting the 3D point cloud with parametric surfaces. The method also comprises defining a partition of the parametric surfaces into oriented facets which respect intersections between the parametric surfaces. The method also comprises determining, among the oriented facets of the partition, a set of facets that represents a skin of the real object. The determining comprises minimizing an energy. The energy includes a data term and a constraint term. The data term increasingly penalizes discarding facets, as a level of fit between a discarded facet and the 3D point cloud increases. The constraint term penalizes formation of non-skin geometry by kept facets. Such a method provides an improved solution for 3D reconstruction.

公开(公告)号：US10783196B2

公开(公告)日：2020-09-22

申请号：US15354870

申请日：2016-11-17

Applicant: DASSAULT SYSTEMES

Inventor： Xavier Grehant ,  Morgan Champenois

IPC: G06F16/00 ,  G06F16/9535 ,  G06F16/955 ,  G06F16/951 ,  H04L29/08 ,  H04L29/06

Abstract: The invention notably relates to a computer-implemented method, performed by a server storing an index of a search engine, for sending, to a client, the URLs of pages of a Web corpus that relates to a theme. The method comprises receiving, from the client, a structured query that corresponds to the theme, the structured query consisting of a disjunction of at least one keyword; determining in the index the group that consists of the URLs of all pages that match the query; and sending to the client the URLs of the group as a stream.Such a method improves the building of a thematic Web corpus.

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.