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公开(公告)号：US20210115802A1
公开(公告)日：2021-04-22
申请号：US16829190
申请日：2020-03-25
Applicant: Dassault Systemes Simulia Corp.
Inventor： Huhu Wang , Edward Dean Tate, JR. , Karthik Mahadevan Muthuraman , Satheesh Kandasamy
Abstract: Disclosed are techniques for determining shroud size of a fan. The techniques receive by a computer processing system digital data of a three-dimensional representation of a shroud of an axial fan, partition the received data into a first partition corresponding to a shroud segment and a second partition corresponding to a fan segment. determine a shroud boundary ring for the shroud segment and a viewing angle of the shroud boundary ring, apply to an image of the first partition a beam shooting process to determine the shroud diameter, determine if there are pixels in the image, which have values that produce signals indicating that the pixels are coincident with portions of the shroud and when signal is detected, calculate the shroud diameter. One aspect includes using the determined should size opening for performing a flow simulation.
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公开(公告)号：US10943037B2
公开(公告)日：2021-03-09
申请号：US14765425
申请日：2013-04-30
Applicant: Dassault Systemes Simulia Corp.
Inventor： Manish Chauhan , Dhiraj Nahar , Sumit Pal , Sameer Shah
IPC: G06F30/23
Abstract: The present invention relates to a method and corresponding system for generating a computer-aided design (CAD) model from a finite element mesh. The method of the invention begins with selecting one or more mesh-element-faces on a finite element mesh that represents a geometric object to be formed of one or more geometric faces. Next, from the one or more selected mesh-element-faces, respective geometric faces are generated. Finally, any generated geometric faces are stitched together to make a geometric shell of the geometric object that the finite element mesh represents.
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公开(公告)号：US10915680B2
公开(公告)日：2021-02-09
申请号：US16230130
申请日：2018-12-21
Applicant: Dassault Systemes Simulia Corp.
IPC: G06F30/23 , G06F119/18 , G06F111/10
Abstract: Embodiments automatically determine optimized designs for manufacturing real-world objects. An embodiment begins with defining a finite element model comprised of a plurality of elements that represents a real-world object. Next, equilibriums and design responses of the object in response boundary conditions are determined, which includes calculating a local volume constraint for a given element of the finite element model. Then, design response sensitivities of the object in response to the boundary conditions are determined, which includes differentiating the calculated local volume constraint to determine sensitivity of a sizing design variable. In turn, the model is iteratively optimized with respect to the sizing design variable using the determined equilibriums and the determined design responses, including the calculated local volume constraint, and the determined design response sensitivities, including the determined sensitivity of the sizing design variable to determine an optimized value of the sizing design variable.
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公开(公告)号：US10853535B2
公开(公告)日：2020-12-01
申请号：US15457388
申请日：2017-03-13
Applicant: Dassault Systemes Simulia Corp.
Inventor： Mikhail Belyi
IPC: G06F30/20 , G06F111/10
Abstract: A computer-implemented method is provided for simulating a modal frequency response of a real-world object. The computer-implemented method includes dividing a plurality of excitation frequencies into a plurality of excitation frequency subsets, calculating modal frequency responses for at least a portion of the excitation frequencies in a given excitation frequency subset, and generating a simulation of the real-world object based at least in part on the modal frequency responses.
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65.发明申请公开(公告)号：US20200285709A1
公开(公告)日：2020-09-10
申请号：US16293983
申请日：2019-03-06
Applicant: Dassault Systemes Simulia Corp.
Inventor： Hudong Chen , Raoyang Zhang , Yanbing Li
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.
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Patent Agency Ranking
公开(公告)号：US10762252B2
公开(公告)日：2020-09-01
申请号：US14909055
申请日：2014-07-31
Applicant: Dassault Systemes Simulia Corp.
Inventor： Pradeep Gopalakrishnan , Raoyang Zhang , Hudong Chen
IPC: G06G7/48 , G06F30/20 , G06F30/23 , G06F17/10 , G06F111/10
Abstract: A method includes simulating, in a lattice velocity set, transport of particles in a volume of fluid, with the transport causing collision among the particles; and generating a distribution function for transport of the particles, wherein the distribution function comprises a thermodynamic step and a particle collision step, and wherein the thermodynamic step is substantially independent of and separate from the particle collision step.
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公开(公告)号：US10303825B2
公开(公告)日：2019-05-28
申请号：US14981263
申请日：2015-12-28
Applicant: Dassault Systemes Simulia Corp.
Inventor： Kaustubh Rao , Blair Perot
Abstract: A method, according to an embodiment, provides a simulation of a physical real-world system, by first generating a system of equations that includes a discrete representation of the real-world system being simulated. Next, the real-world system is simulated. In simulating the system, a user specified tolerance of a solution of the system of equations is obtained. Then, the system of equations is iteratively solved until a solution to the system of equations for a given iteration is within the user specified tolerance of the solution of the system of equations for approximately infinite iterations. In such an embodiment, the solution to the system of equations for the given iteration is determined to be within the user specified tolerance using an experimentally determined constant, an estimate of a minimum eigenvalue of the system of equations for the given iteration, and a residual of the system of equations for the given iteration.
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公开(公告)号：US20180189433A1
公开(公告)日：2018-07-05
申请号：US15393830
申请日：2016-12-29
Applicant: Dassault Systemes Simulia Corp.
Inventor： Vladimir Belsky , Claus Bech Wittendorf Pedersen , Michael Wood
Abstract: Provided are a computer-based method and system of simulating a physical real-world system. Such a method begins by defining, in memory of a processor, a model comprising a plurality of design variables where the defined model represents a real-world physical system and where behavior of the model is given by an equation stored in the memory. The method/system uses the equation to iteratively optimize the defined model with respect to a given one of the plurality of design variables by simultaneously solving for equilibrium of the model and for the design response sensitivity of the given design variable, for the equilibrium, in a given optimization iteration. According to such an embodiment, iteratively optimizing the model results in an improved simulation of the real-world physical system.
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公开(公告)号：US20170337307A1
公开(公告)日：2017-11-23
申请号：US15597473
申请日：2017-05-17
Applicant: Dassault Systemes Simulia Corp.
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.
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公开(公告)号：US09322259B2
公开(公告)日：2016-04-26
申请号：US14139471
申请日：2013-12-23
Applicant: Dassault Systemes Simulia Corp.
Inventor： Sandeep Kulathu , James Christopher Wohlever , Zhen-zhong Du
CPC classification number: E21B43/26 , G01V99/005
Abstract: A computer method, apparatus and system simulate hydraulic fracturing. The computer system/method models a wellbore of an injection well. The wellbore model includes a hydraulic drill pipe element in a borehole and related fluid flow in the borehole. The borehole workflow is modeled in a subject rock formation. A simulator operatively coupled to the model obtains pressure values from the modeled borehole workflow and modeled wellbore. The simulator automatically converts pore pressure from the modeled borehole into a mechanical pressure load on the subject rock formation. The mechanical pressure as hydrostatic pressure is automatically applied to the surface of the rock formation affected by the borehole and responsively defines one or more pressure induced fractures. A 2D or 3D graphical representation of the pressure induced fractures in the rock formation are displayed on output.
Abstract translation: 计算机方法，装置和系统模拟水力压裂。 计算机系统/方法模拟注入井的井眼。 井眼模型包括钻孔中的液压钻杆元件和钻孔中的相关流体流动。 井眼工作流程以受试岩层为模型。 可操作地耦合到模型的模拟器从建模的井眼工作流程和建模的井眼获得压力值。 模拟器将孔隙压力从模拟的井眼转换为主体岩层上的机械压力载荷。 作为静水压力的机械压力被自动施加到受钻孔影响的岩层的表面，并且响应地定义一个或多个压力引起的裂缝。 输出中显示岩层压力诱导断层的2D或3D图形表示。
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