公开(公告)号：US20220309208A1

公开(公告)日：2022-09-29

申请号：US17210804

申请日：2021-03-24

Applicant: Dassault Systemes Simulia Corp.

Inventor： Kaustubh Rao

IPC: G06F30/20 ,  G06F30/10

Abstract: A calibrated model is created from a physics computation model of a selected component. A setup for a virtual experiment for the selected component is received, and input parameters are defined. An output parameter to be modeled by the calibrated model is selected. The virtual experiment is conducted for the defined input parameters over a predefined range of values for a varied input parameter. Result data from the virtual experiment is recorded and used to produce the calibrated model.

公开(公告)号：US20220207219A1

公开(公告)日：2022-06-30

申请号：US17136259

申请日：2020-12-29

Applicant: Dassault Systemes Simulia Corp.

Inventor： Hiroshi Otomo ,  Rafael Salazar Tio ,  Hudong Chen ,  Raoyang Zhang ,  Andrew Fager ,  Ganapathi Raman Balasubramanian ,  Bernd Crouse ,  Hongli Fan ,  Jingjing Yang

IPC: G06F30/28 ,  G06T7/10

Abstract: Disclosed are computer implemented techniques for conducting a fluid simulation of a porous medium. These techniques involve retrieving a representation of a three dimensional porous medium, the representation including pore space corresponding to the porous medium, with the representation including at least one portion of under-resolved pore structure in the porous medium, defining a representative flow model that includes the under-resolved pore structure in the representation, and constructing by the computer system fluid force curves that correspond to fluid forces in the under-resolved pore structure in the representation.

公开(公告)号：US11042674B2

公开(公告)日：2021-06-22

申请号：US15729216

申请日：2017-10-10

Applicant: Dassault Systemes Simulia Corp.

Inventor： Adrien Mann ,  Chenghai Sun ,  Hudong Chen ,  Raoyang Zhang ,  Franck Léon Pérot

IPC: G06F30/20 ,  G06F30/15 ,  G06F30/23 ,  G06F119/10

Abstract: The description describes one or more processing devices and one or more hardware storage devices storing instructions that are operable, when executed by the one or more processing devices, to cause the one or more processing devices to perform operations including modeling the porous material as a two-dimensional interface, in a simulation space, in which fluid flows and sound waves travel through the porous material and experience pressure and acoustic losses. The operations also include simulating, in the simulation space, fluid flow and propagation of sound waves, the activity of the fluid being simulated so as to simulate movement of elements within the simulation space and across the interface, where the simulation of the movement of the elements across the interface is governed by the model.

公开(公告)号：US20210173985A1

公开(公告)日：2021-06-10

申请号：US16707163

申请日：2019-12-09

Applicant: Dassault Systemes Simulia Corp.

Inventor： Martin Sanchez-Rocha

IPC: G06F30/28 ,  G06N5/02 ,  G06T17/20 ,  G06F17/13

Abstract: Disclosed are techniques for simulating a physical process and for determining boundary conditions for a specific energy dissipation rate of a k-Omega turbulence fluid flow model of a fluid flow, by computing from a cell center distance and fluid flow variables a value of the specific energy dissipation rate for a turbulent flow that is valid for a viscous layer, buffer layer, and logarithmic region of a boundary defined in the simulation space. The value is determined by applying a buffer layer correction factor as a first boundary condition for the energy dissipation rate and by applying a viscous sublayer correction factor as a second boundary condition for the energy dissipation rate.

公开(公告)号：US10948896B2

公开(公告)日：2021-03-16

申请号：US14974414

申请日：2015-12-18

Applicant: Dassault Systemes Simulia Corp.

Inventor： Claus Bech Wittendorf Pedersen

IPC: G06F17/50 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/20 ,  G06F119/18 ,  B33Y50/02

Abstract: One goal in automated product designing of additive manufacturing is to obtain designs having overhangs without support structures if the criterion for overhangs is rigorously geometrical. In an embodiment of the present invention, designers can request automated optimization and design, using simulation and sensitivity-based optimization, of structures having overhangs in the print direction that do not need any support structures. In an embodiment, a method includes, at a processor, calculating model design responses and model sensitivities of a computer-aided engineering (CAE) model in a CAE system based on design variables of the CAE model for various design responses being either applied in objective or constraints. The method further includes optimizing values of the design variables. The method further includes calculating physical design variables by employing a penalty function. Additionally, the calculations can also be in conjunction with employing material interpolation schemes. The method further includes generating an optimized CAE model using the calculated physical design variables. The optimized CAE model is free or partly free of support structures. The method further includes printing the optimized CAE model being free or partly free of support structures.

公开(公告)号：US20200285710A1

公开(公告)日：2020-09-10

申请号：US16294242

申请日：2019-03-06

Applicant: Dassault Systemes Simulia Corp.

Inventor： Hudong Chen ,  Raoyang Zhang ,  Yanbing Li

IPC: G06F17/50

Abstract: Disclosed are techniques for performing a flow simulation that include storing in a memory state vectors for a plurality of voxels, the state vectors comprising a plurality of entries that correspond to particular momentum states of a plurality of possible momentum states at a voxel. The techniques also include storing in a memory a representation of at least one surface and performing interaction operations on the state vectors, the interaction operations modelling interactions between elements of different momentum states. The techniques also include performing surface interaction operations which model interactions between the surface and elements of at least one voxel near the surface, including modeling a to wall shear stress direction that is not parallel to a flow velocity direction and performing move operations on the state vectors to reflect movement of elements to new voxels.

公开(公告)号：US20200218839A1

公开(公告)日：2020-07-09

申请号：US16825605

申请日：2020-03-20

Applicant: Dassault Systemes Simulia Corp.

Inventor： Alexander Jacobus Maria Van der Velden ,  Robert Vincent Combier

IPC: G06F30/20 ,  G06T19/00

Abstract: Embodiments of the present invention provide an augmented reality by defining a model representing a real-world system. After defining the model, a plurality of model simulations are performed using the defined model which produce predicted field data that is stored in memory. In turn, data from one or more sensors in the real-world system is received and the defined model is calibrated using the received field data relative to the stored predicted field data. Then, an augmented reality of the real-world system is provided using the calibrated model.

公开(公告)号：US10671777B2

公开(公告)日：2020-06-02

申请号：US15597473

申请日：2017-05-17

Applicant: Dassault Systemes Simulia Corp.

Inventor： Victor George Oancea ,  Juan Antonio Hurtado Ortiz ,  Bruce Engelmann ,  William John Grimes

IPC: G06F30/23 ,  B33Y50/00 ,  G06F111/10

Abstract: Methods and systems for providing accurate, scalable, and predictive 3D printing simulations using numerical methods for part-level simulations. Complex parts can be discretized into finite elements using independent and arbitrary meshing. The real additive manufacturing tooling path and printing time of a printing machine are simulated and applied to the mesh of finite elements using an intersection module that combines the finite element mesh with the tool path information of the printing machine in a geometric sense. This allows for localized heating effects to be simulated very accurately, and for cooling assessments to be precisely computed given the intersection module's computation of partial facets and volumes of the finite elements at any given time in the printing simulation.

公开(公告)号：US10599879B2

公开(公告)日：2020-03-24

申请号：US15185707

申请日：2016-06-17

Applicant: Dassault Systemes Simulia Corp.

Inventor： Martin Sanchez Rocha ,  Blair Perot

IPC: G06F17/50 ,  G06F30/20 ,  G06F30/23 ,  G06F111/10

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.

公开(公告)号：US20200019662A1

公开(公告)日：2020-01-16

申请号：US16580059

申请日：2019-09-24

Applicant: Dassault Systemes Simulia Corp.

Inventor： Hudong Chen ,  Raoyang Zhang ,  Pradeep Gopalakrishnan

IPC: G06F17/50 ,  G06F17/18 ,  G06F17/11

Abstract: A method comprising: simulating, in a lattice velocity set, movement of particles in a volume of fluid, with the movement causing collision among the particles; based on the simulated movement, determining relative particle velocity of a particle at a particular location within the volume, with the relative particle velocity being a difference between (i) an absolute velocity of the particle at the particular location within the volume and measured under zero flow of the volume, and (ii) a mean velocity of one or more of the particles at the particular location within the volume; and determining, based on the relative particle velocity, a non-equilibrium post-collide distribution function of a specified order that is representative of the collision.