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Finite element parameterized model modeling method and system and storage medium

A parametric model and modeling method technology, applied in 3D modeling, image data processing, design optimization/simulation, etc., can solve problems such as parameter loss

Inactive Publication Date: 2021-08-24
HUNAN AUTOMOTIVE ENG VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a finite element parameterized model modeling method, system and storage medium, which are used to solve the technical problem of parameter loss caused by the existing finite element parameter model running between different software and systems

Method used

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  • Finite element parameterized model modeling method and system and storage medium
  • Finite element parameterized model modeling method and system and storage medium
  • Finite element parameterized model modeling method and system and storage medium

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Embodiment 1

[0036] Such as figure 1 As shown, the present invention discloses a finite element parameterized model modeling method, comprising the following steps:

[0037] Obtain the original finite element model text file and modification requirements;

[0038] Reading the corresponding type of original model parameters from the finite element model text file according to the modification requirements;

[0039] determining modified model parameters according to the original model parameters and the modification requirements;

[0040] The original finite element model text file is directly modified according to the modified model parameters.

[0041] In addition, in this embodiment, the present invention also discloses a computer system, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, any of the above methods can be implemented. A step of.

[0042] In addition, in this embodi...

Embodiment 2

[0045] Embodiment 2 is an extended embodiment of Embodiment 1. It differs from Embodiment 1 in that the specific steps of the finite element parametric model modeling method are refined.

[0046] In this embodiment, a finite element parameterized model modeling method is disclosed, including:

[0047] Obtaining the original finite element model text file and modification requirements; reading corresponding types of original model parameters from the finite element model text file according to the modification requirements;

[0048]Specifically, the modification requirements include modification parameters and modification types, wherein the modification parameters include modification of material parameters, modification of constraint parameters, modification of geometric parameters, modification of load parameters, and modification of grid division parameters. Combination; the original model parameters include one or any combination of material parameters, constraint paramete...

Embodiment 3

[0058] The third embodiment is an extended embodiment of the second embodiment, which is different from the second embodiment in that the specific steps and specific parameters of the finite element parametric model modeling method are further refined.

[0059] In this embodiment, the finite element parametric modeling method first uses CAD software for geometric modeling, uses CAE software for mesh division and other pre-processing work to complete the initial establishment of the finite element model, and then uses fortran or other programming languages The written external program directly modifies the coordinates of relevant nodes in the original finite element model file according to the size parameters to realize finite element parametric modeling.

[0060] Specifically, such as figure 2 As shown, in this embodiment, the finite element parameterized model modeling method specifically includes the following steps:

[0061] 1. Use UG or other geometric modeling software ...

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Abstract

The invention discloses a finite element parameterized model modeling method and system and a storage medium. The method comprises the steps of obtaining an original finite element model text file and a modification requirement; original model parameters of corresponding types are read from the finite element model text file according to the modification requirements; determining modified model parameters according to the original model parameters and the modification requirements; directly modifying the original finite element model text file according to the modified model parameters. Compared with the prior art, the finite element model modelling method has the advantages that model modification can be realized without calling finite element model modeling software such as CAD (Computer Aided Design) and CAE (Computer Aided Engineering) software; the problems of incomplete product feature information transmission among different software platform pieces and compatibility of multi-software integration in parameterized modeling software based on a secondary development method do not exist.

Description

technical field [0001] The invention relates to the technical field of finite element modeling, in particular to a finite element parameterized model modeling method, system and storage medium. Background technique [0002] At present, more and more enterprises at home and abroad are using finite element analysis technology to analyze product structure performance, and combine mathematical optimization algorithm to optimize product structure design, so as to improve product performance and shorten product development cycle. In the field of finite element analysis technology, more than 60% of the entire analysis time is occupied by pre-processing modeling. The conventional modeling technology method is to first establish a geometric model in the 3D modeling software, and then import it into the pre-processing software to carry out Mesh division, and finally import the divided mesh model into the finite element software for simulation calculation, the whole process is cumberso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06T17/20
CPCG06F30/23G06T17/20
Inventor 刘助春张丹陈标刘骞程泊静杨庆
Owner HUNAN AUTOMOTIVE ENG VOCATIONAL COLLEGE