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公开(公告)号：US20200257833A1
公开(公告)日：2020-08-13
申请号：US16780655
申请日：2020-02-03
Applicant: Dassault Systemes
Inventor： Laurent MARINI
Abstract: The disclosure notably relates to a computer-implemented method for designing, with a CAD system, a 3D modeled object representing a mechanical part. The method includes obtaining a B-rep representing the mechanical part. The B-Rep has faces and edges. The method further includes obtaining a first set of faces and a feature type. The feature type is either a depression feature type or a protrusion feature type. The method further comprises, automatically by the CAD system, recognizing a second set of faces within the first set of faces. The second set of faces represents a feature of the provided feature type. This constitutes an improved method for designing a mechanical part.
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公开(公告)号：US10706186B2
公开(公告)日：2020-07-07
申请号：US15423229
申请日：2017-02-02
Applicant: DASSAULT SYSTEMES
Inventor： Laurent Marini , Quentin Freger
IPC: G06F30/17 , G06T17/00 , G06F30/00 , G06T17/10 , G06F119/18 , G06F3/0481 , G06F3/0486
Abstract: A computer implemented method for designing a 3D modeled object that represents a mechanical part. The method comprises selecting a group of faces of the B-Rep, defining a trajectory for each respective face of the group of faces, computing, for each face of the group of faces, a respective swept volume, the swept volume corresponding to the volume swept by the respective face with respect to the trajectory, assigning a material removal label or a material adding label to each swept volume, according to the position of the swept volume at the respective face with respect to the interior of the 3D modeled object, and updating the B-Rep with a material removal volume and then a material adding volume. The method improves the design of a 3D modeled object.
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公开(公告)号：US20200211296A1
公开(公告)日：2020-07-02
申请号：US16730849
申请日：2019-12-30
Applicant: Dassault Systemes
Inventor： Frederic LETZELTER , Yani SADOUDI
Abstract: The disclosure notably relates to a three-dimensional (3D) model. The data structure includes one delegated data object. The one delegate data object includes input parameters specific to a type of the delegated data object, and at least one operator specific to the type of the delegated data object for generating an output topology. The data structure also includes an output topology generated by the operator.
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94.发明申请公开(公告)号：US20200210542A1
公开(公告)日：2020-07-02
申请号：US16235424
申请日：2018-12-28
Applicant: Dassault Systemes Simulia Corp.
Inventor： Dan Cojocaru , James Christopher Wohlever , Tod Olan Dalrymple
IPC: G06F17/50 , G06F3/0484
Abstract: A computer simulation system is configured to display to a user a graphical user interface to allow the user to import experimental test data, identify a material model that includes one or more parameters to be calibrated during a material model calibration process, perform an iterative optimization process to calibrate the material model, the iterative optimization process uses an optimization algorithm that enforces a constraint based on Drucker's stability criterion across one or more predetermined strain ranges to generate a calibrated material model, assign the calibrated material model to a component of a simulation model based on input from the user, a real-world equivalent of the component being made of the physical material, and perform a simulation that includes the component, the simulation using the stable material model and stable set of parameters to simulate response of the real-world equivalent during the simulation.
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公开(公告)号：US20200210539A1
公开(公告)日：2020-07-02
申请号：US16236799
申请日：2018-12-31
Applicant: Dassault Systemes Simulia Corp.
Inventor： Hudong Chen , Raoyang Zhang , Pradeep Gopalakrishnan
Abstract: Computer implemented techniques for simulating a fluid flow about a surface of a solid, include receiving a coordinate system for representation of a curvilinear mesh that conforms to the surface of the solid, simulating, with a lattice velocity set transport of particles in a volume of fluid, with the transport causing collision among the particles, executing a distribution function for transport of the particles, with the distribution function including a particle collision determination and a change in particle distribution associated with the curvilinear mesh, performing by the computing system, advection operations in the coordinate system under constraints applied to particle momentum values and mapping by the computer system values resulting from simulating onto the curvilinear mesh by translation of the particle momentum values and spatial coordinates determined in the coordinate system into momentum and spatial values in the curvilinear space.
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Patent Agency Ranking
公开(公告)号：US20200081604A1
公开(公告)日：2020-03-12
申请号：US16542048
申请日：2019-08-15
Applicant: Dassault Systemes
IPC: G06F3/0481 , G06F3/0484 , G06T13/20
Abstract: A computer-based system and method generate a movement of a 3D part of a 3D assembly in a 3D scene. Movement of the 3D part represents rotation by a predetermined angle. The method a) displays a 3D assembly of 3D parts in the 3D scene; b) selects a 3D part of the 3D assembly; and c) displays in the 3D scene a 3D manipulator. The 3D manipulator comprises three axes, and is anchored to the 3D part at an anchor point. The method then d) drags the 3D manipulator along one axis by a current distance from the anchor point on the axis. The predetermined angle corresponds to a maximum distance from the anchor point. The method e) while dragging the 3D manipulator, computes a ratio of the current distance to the maximum distance, and f) generates the movement of the 3D part proportionally to the ratio.
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公开(公告)号：US10550690B2
公开(公告)日：2020-02-04
申请号：US14277909
申请日：2014-05-15
Applicant: Dassault Systemes Simulia Corp.
Inventor： Bernd Crouse , Xiaobo Nie , Raoyang Zhang , Yong Li , Hiroshi Otomo , Hudong Chen , Andrew Fager , David M. Feed
Abstract: This description relates to computer simulation of physical processes, such as computer simulation of multi-species flow through porous media including the determination/estimation of relative permeabilities for the multi-species flow through the porous media.
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公开(公告)号：US10521516B2
公开(公告)日：2019-12-31
申请号：US14835304
申请日：2015-08-25
Applicant: DASSAULT SYSTEMES
Inventor： Jean-Francois Rameau
IPC: G06F17/50
Abstract: A method for designing a 3D modeled object can implement a modeling graph having nodes that represent geometrical objects and arcs that each represent a relationship, wherein procedural relationships are represented by unidirectional arcs, wherein the relationships linking the geometrical objects further include live relationships that are represented by bidirectional arcs, and wherein the provided modeling graph respects a criterion that all the arcs of each strong component of the modeling graph are bidirectional. Upon adding a relationship linking two of the geometrical objects that are included in the data defining the 3D modeled object before the addition, the method selects two geometrical objects to be linked by the relationship to be added, the selection being performed according to the criterion.
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公开(公告)号：US10474763B2
公开(公告)日：2019-11-12
申请号：US13905009
申请日：2013-05-29
Applicant: Dassault Systemes
Inventor： Laurent Santiquet , Bertrand Faure
IPC: G06F17/50 , G06T19/20 , G06F3/0484
Abstract: A computer-aided design system and computer-implemented method define initial conditions for dynamic simulation of an assembly of objects in a three-dimensional scene of a computer-aided design. The system and method provide (S1) the assembly of objects with information relative to kinematic joints linking objects of the assembly. The system/method provide (S2) a manipulating tool (M) embedded in the scene; attach (S3) said manipulating tool (M) to one object of the assembly; select (S4) a degree of freedom of the manipulating tool (M) attached to the object of the assembly; and input (S5) at least one initial condition (IC) according to said selected degree of freedom, an initial condition comprising an initial position and/or an initial speed and/or an initial acceleration. The tool has a referential (reference) with three-axes allowing for each axis a degree of freedom in translation and a degree of freedom in rotation. Next the system and method calculate (S6) and display in real time the dynamic simulation taking into account the initial conditions (IC) previously defined.
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公开(公告)号：US10437231B2
公开(公告)日：2019-10-08
申请号：US15386681
申请日：2016-12-21
Applicant: DASSAULT SYSTEMES
Inventor： Jeannine Panciatici
IPC: G05B19/4097 , B29C33/38 , B29C70/48 , G06F17/50
Abstract: The invention notably relates to a computer-implemented method for designing an outer surface of a composite part manufactured by molding a stack of material layers. The method comprises defining constant offset surfaces, a constant offset surface being a respective part of the outer surface which is to have a constant offset value relative to the reference surface, the constant offset value of a respective constant offset surface corresponding to the sum of the thicknesses of the material layers below the respective constant offset surface, and determining a final surface that corresponds to a tangent continuous connection of the constant offset surfaces. This provides an improved solution for designing an outer surface of a composite part.
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