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    MESH VOID SPACE IDENTIFICATION AND AUTO SEEDING DETECTION IN COMPUTER ADDED DESIGN DEFINED GEOMETRIES
    41.
    发明申请
    MESH VOID SPACE IDENTIFICATION AND AUTO SEEDING DETECTION IN COMPUTER ADDED DESIGN DEFINED GEOMETRIES 有权

    公开(公告)号：US20210357541A1

    公开(公告)日：2021-11-18

    申请号：US16874977

    申请日：2020-05-15

    Applicant: Dassault Systemes Simulia Corp.

    Inventor： Kaustubh Rao

    IPC: G06F30/10 ,  G06F30/28

    Abstract: Described are computer implemented techniques to select a single surface of a computer aided design (CAD) as a surface that shares a boundary with a void space that will be discretized, produce a virtual geometry item that is positioned within or about the void region to define the volume to be discretization and propagate a mesh within the defined volume by discretizing the CAD generated geometry by a discretization factor to find a first valid seed point within the CAD generated geometry that satisfies all virtual geometries taken together.

    Geometrical Dimensionality Control in Optimization
    43.
    发明申请
    Geometrical Dimensionality Control in Optimization 有权

    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.

    SYSTEM AND METHOD FOR STABILITY-BASED CONSTRAINED NUMERICAL CALIBRATION OF MATERIAL MODELS
    46.
    发明申请
    SYSTEM AND METHOD FOR STABILITY-BASED CONSTRAINED NUMERICAL CALIBRATION OF MATERIAL MODELS 审中-公开

    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.

    COMPUTER SIMULATION OF PHYSICAL FLUIDS ON A MESH IN AN ARBITRARY COORDINATE SYSTEM
    47.
    发明申请
    COMPUTER SIMULATION OF PHYSICAL FLUIDS ON A MESH IN AN ARBITRARY COORDINATE SYSTEM 审中-公开

    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

    IPC: G06F17/50 ,  G01P5/00 ,  G06N7/08

    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.

    Methods And Systems For Authoring Simulation Scenarios
    49.
    发明申请
    Methods And Systems For Authoring Simulation Scenarios 审中-公开

    公开(公告)号：US20190179977A1

    公开(公告)日：2019-06-13

    申请号：US15841081

    申请日：2017-12-13

    Applicant: Dassault Systemes Simulia Corp.

    Inventor： Alexander Jacobus Maria Van der Velden

    IPC: G06F17/50 ,  G06F15/18

    Abstract: Unlike existing methods that rely on a manual procedure for setting conditions for performing computer-based simulations, embodiments automatically set conditions for a simulation of a real-world object represented by a computer aided design (CAD) model. In one such embodiment, the morphology of a CAD mode is analyzed to identify a function of an element of the CAD model. In turn, conditions for a simulation are defined based upon one or more rules corresponding to the identified function of the element of the CAD model, where said defining includes automatically setting conditions in a simulation of the real-world physical object.

    Optimal Pressure-Projection Method For Incompressible Transient And Steady-State Navier-Stokes Equations
    50.
    发明申请
    Optimal Pressure-Projection Method For Incompressible Transient And Steady-State Navier-Stokes Equations 审中-公开

    公开(公告)号：US20170364615A1

    公开(公告)日：2017-12-21

    申请号：US15185707

    申请日：2016-06-17

    Applicant: Dassault Systemes Simulia Corp.

    Inventor： Martin Sanchez Rocha ,  Blair Perot

    IPC: G06F17/50

    CPC classification number: G06F17/5009 ,  G06F17/5018 ,  G06F2217/16

    Abstract: Embodiments of the present invention simulate a real-world system by first generating a time dependent system of equations that represents the real-world system where the time dependent system of equations has a defined constraint. Next, the constraint is de-coupled from the time-dependent system of equations using a matrix representing an approximation of physics of the real-world system, the de-coupling generating a first system of equations representing the constraint and a second system of equations representing physics of the real-world system. In turn, the generated first and second systems of equations are solved and the real-world system is automatically simulated by generating a simulation using results from solving the first and second systems of equations.

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