-
公开(公告)号：US20230237207A1
公开(公告)日：2023-07-27
申请号：US17580695
申请日：2022-01-21
Applicant: Dassault Systemes Simulia Corp
Inventor： Wesley McLendon , Joshua Stewart
CPC classification number: G06F30/10 , G01N3/08 , G01N3/066 , G01N2203/0016 , G01N2203/0617
Abstract: A computer-implemented method includes receiving, in computer memory, a first test data set that comprises results of a real-world test of a material, where the first test data set comprises a plurality of test data points. The method further includes identifying one or more critical points among the test data points in the first test data set and processing the first test data set with a computer processor to produce a second test data set with differing (e.g., fewer) test data points than the first test data set, wherein the second test data set includes all the test data points that were identified as critical points in the first test data set and at least some other data points.
-
公开(公告)号：US20230153497A1
公开(公告)日：2023-05-18
申请号：US18072947
申请日：2022-12-01
Applicant: Dassault Systemes Simulia Corp.
Inventor： Martin Sanchez-Rocha
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：US11645433B2
公开(公告)日：2023-05-09
申请号：US16686514
申请日：2019-11-18
Applicant: Dassault Systemes Simulia Corp.
Inventor： Nagendra Krishnamurthy , Luca D'Alessio , Raoyang Zhang , Hudong Chen
IPC: G06F30/20 , G06F111/10
CPC classification number: G06F30/20 , G06F2111/10
Abstract: Computer implemented techniques for simulating a fluid flow about a surface of a solid are disclosed. These techniques involve receiving a model of a simulation space including a lattice structure represented as a collection of voxels and a representation of a physical object, with the voxels having appropriate resolutions to account for surfaces of the physical object. The techniques also involve simulating movement of particles in a volume of fluid, with the movement of the particles causing collisions among the particles, identifying faces between two voxels where at least one of the faces violates a stability condition, computing a modified flux using a spatially averaged gradient in the vicinity of the two voxels where the at least one of the faces violates the stability condition, and performing by the computing system, advection operations on the particles to subsequent voxels.
-
公开(公告)号：US11604906B2
公开(公告)日：2023-03-14
申请号：US16573729
申请日：2019-09-17
Applicant: Dassault Systemes Simulia Corp.
Inventor： Anand Narayan Pathak , Yangwook Choi , Rajesh Dadaji Nagose
Abstract: A computer-aided design system includes a display device, a memory storing a plurality of response surface models, and a processor configured to: (a) display a graphical user interface that includes a model of a vehicle frame; (b) display a section configuration panel that includes one or more section dimension values for one or more section dimensions of a first section member of the plurality of section members; (c) retrieve a first response surface model based on values of the one or more section dimensions for the first section member; (d) determine one or more predicted values associated with the first section member based on the values of the section dimensions, the predicted values include one or more predicted crash resistances for the section member; and (e) display the predicted values, thereby allowing the user to evaluate the predicted values for suitability in vehicle design.
-
公开(公告)号：US20220414295A1
公开(公告)日：2022-12-29
申请号：US17897310
申请日：2022-08-29
Applicant: Dassault Systemes Simulia Corp.
Inventor： Bernd Crouse , Rui Xu
Abstract: Systems, methods, and computer program products can be used for visualizing the behavior of flow of two or more fluid phases, wherein a fluid phase behavior is represented in a visualization. One of the methods includes determining an occupation time, which is the amount of elapsed time from when a fluid phase first occupies a particular location until a second time. The method includes generating data for a visualization, with a location in the visualization corresponding to the particular location, and with the generated data for that location in the visualization indicating the occupation time
-
Patent Agency Ranking
公开(公告)号：US20220398807A1
公开(公告)日：2022-12-15
申请号：US17342817
申请日：2021-06-09
Applicant: Dassault Systemes Simulia Corp.
Inventor： Zhuang Sun , Rafael Salazar-Tio , Andrew Fager , Bernd Crouse
Abstract: Disclosed are computer implemented techniques for conducting a simulation of physical properties of a porous medium. The features include receiving a micro-CT 3D image that captures a representative elemental volume of the porous medium, the porous medium defined as having mineral types and fluid types with individual grains and grain to grain contacts, labeling the micro-CT 3D image as individual voxels according to mineral and fluid types and labeling the mineral type voxels as belonging to separated and fixed individual grains. The features also include transforming the labeled voxels into an unstructured conformal mesh representation for all grains and applying the unstructured conformal mesh representation to a parametric cohesive contact engine, with the parametric cohesive contact engine executing a parametric cohesive contact model that has an adjustable parameter, a critical separation δ0 conditioned according to consolidation level.
-
公开(公告)号：US20220309199A1
公开(公告)日：2022-09-29
申请号：US17210723
申请日：2021-03-24
Applicant: Dassault Systemes Simulia Corp.
Inventor： Kaustubh Rao
Abstract: A computer-implemented method of integrating a calibrated model with physics computations in a computer-based simulation of a planned or existing real-world environment is disclosed. The method includes representing a selected component with a calibrated model thereof, wherein the calibrated model of the selected component defines an interface boundary and a modeled region, which is inside the interface boundary and distinct from a physics region, which is outside the interface boundary. The method includes producing modeled solution variables based on the calibrated model at computational points along the interface boundary of the calibrated model. The method includes producing computed solution variables based on physics computations at computational points in the physics region. The method includes exchanging the modeled variables with the computed variables across the interface boundary.
-
公开(公告)号：US20220199261A1
公开(公告)日：2022-06-23
申请号：US17131905
申请日：2020-12-23
Applicant: Dassault Systemes Simulia Corp.
Inventor： Jonathan T. Jilesen , Gregory M. Laskowski
Abstract: Described are computer aided techniques to simulate a human respiratory event. The computer aided techniques access a model including a portion of a person's respiratory tract, which models the respiratory tract as a volumetric region, initiate a respiratory event into the volumetric regions, which respiratory event originates in the accessed model at a depth that is inside of the modeled respiratory tract, simulate movement of elements of the respiratory event within the volumetric region, with the elements representing particles of the respiratory event, at an inlet boundary condition representing an area of the model that is at the threshold depth inside the respiratory tract, and obtain from the simulation, a representation of a trajectory of particles of the respiratory event.
-
公开(公告)号：US20220108055A1
公开(公告)日：2022-04-07
申请号：US17060264
申请日：2020-10-01
Applicant: Dassault Systemes Simulia Corp.
Inventor： Sivapalan Senthooran , Mohamed Ibrahim Eldesouky , Robert Powell , Ales Alajbegovic
IPC: G06F30/28
Abstract: Disclosed are computer implemented techniques for correcting for numerically generated pressure waves at an inlet of a simulation space. The techniques include receiving a model of a simulation space and applying an inlet pressure to an inlet of the simulation space. The applied inlet pressure generates fluctuating velocities that produce undesired, numerically-generated pressure waves. The numerically generated pressure waves are measured to establish a measured pressure history. The measured pressure history is subtracted from the applied inlet boundary pressure history to provide a set of boundary conditions. The process conducts a fluid simulation using the set of boundary conditions. The process repeats using a subsequent set of boundary conditions, until an iteration is reached where the measured pressures near the inlet are sufficiently small to compensate for undesired, numerically-generated pressure waves, and thereafter stores that subsequent set of boundary conditions to provide a corrected set of boundary conditions.
-
公开(公告)号：US20210406434A1
公开(公告)日：2021-12-30
申请号：US16914730
申请日：2020-06-29
Applicant: Dassault Systemes Simulia Corp.
Inventor： Pradeep Gopalakrishnan , Raoyang Zhang , Hudong Chen , Junye Wang , Avinash Jammalamadaka
Abstract: Described are computer implemented techniques for simulating elements of a fluid flow. These techniques 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, storing in a memory a representation of at least one surface that is sized and oriented independently of the size and orientation of the voxels, perform interaction operations on the state vectors, the interaction operations modelling interactions between elements of different momentum states, perform surface interaction operations on the representation of the surface, the surface interaction operations modelling interactions between the surface and substantially all elements of voxels, and performing move operations on the state vectors to reflect movement of elements to new voxels.
-
-
-
-
-
-
-
-
-
Search Results
127
records
(took 0.025 seconds)
