CN113297764A - Finite element parametric model modeling method, system and storage medium - Google Patents
Finite element parametric model modeling method, system and storage medium Download PDFInfo
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Abstract
The invention discloses a finite element parametric model modeling method, a finite element parametric model modeling system and a storage medium, wherein an original finite element model text file is obtained and a requirement is modified; reading original model parameters of corresponding types from the finite element model text file according to the modification requirement; determining modified model parameters according to the original model parameters and the modification requirements; compared with the prior art, the method for modifying the finite element model can realize the modification of the model without calling finite element model modeling software such as CAD (computer aided design) software, CAE (computer aided engineering) software and the like, and has no compatibility problems of incomplete product characteristic information transmission and multi-software integration between different software platforms in parametric modeling software based on a secondary development method.
Description
Technical Field
The invention relates to the technical field of finite element modeling, in particular to a finite element parametric model modeling method, a finite element parametric model modeling system and a storage medium.
Background
At present, more and more enterprises at home and abroad analyze the structural performance of products by utilizing a finite element analysis technology and optimally design the product structure by combining a mathematical optimization algorithm so as to improve the performance of the products and shorten the development period of the products. In the field of finite element analysis technology, the whole analysis time occupied by the pre-processing modeling is more than 60%, and the conventional modeling technical means is to establish a geometric model in three-dimensional modeling software, then introduce the geometric model into the pre-processing software for grid division, and finally introduce the divided grid model into the finite element software for simulation calculation, so that the whole process is complicated to operate and takes a long time. In the process of finite element modeling and analysis, the idea of finite element parametric modeling is introduced, so that the time of pretreatment can be greatly reduced, and the optimization efficiency is improved.
The method mainly includes two approaches for realizing finite element modeling parameterization at present, firstly, a pre-processing process and a post-processing process are programmed in a 'command stream' form in CAE software, software secondary development is carried out, and key design variables which have great influence on product performance are parameterized, so that a parameterized finite element model is established. The other method is to directly establish a parameterized finite element model in a text document by means of a parameterized design language provided by CAE software and complete other finite element analysis steps.
The finite element parameterized modeling is realized by carrying out secondary development on finite element software, because structural optimization is a repeated cyclic process of 'modifying a model, analyzing and verifying an optimization result', the structural optimization relates to a set of various software platforms and systems, most of the optimization software is often independent of a design platform, although different software can realize data exchange by writing special programs, sometimes complete exchange of product characteristic information is difficult to realize, and in addition, the compatibility problem often exists between different software and systems.
Therefore, how to solve the parameter loss caused by the operation of the existing finite element parameter model between different software and systems has become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention provides a finite element parametric model modeling method, a finite element parametric model modeling system and a storage medium, which are used for solving the technical problem of parameter loss caused by the operation of the existing finite element parametric model between different software and systems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a finite element parametric model modeling method comprises the following steps:
acquiring an original finite element model text file and a modification requirement;
reading original model parameters of corresponding types from the finite element model text file according to the modification requirement;
determining modified model parameters according to the original model parameters and the modification requirements;
and directly modifying the original finite element model text file according to the modified model parameters.
Preferably, the method for directly modifying the original finite element model text file according to the modified model parameters comprises the following steps:
and replacing the modified model parameters with the corresponding original model parameters in the original finite element model text file to obtain the modified finite element model text file.
Preferably, the method for directly modifying the original finite element model text file according to the modified model parameters comprises the following steps:
reading other original model parameters except the model parameter corresponding to the modified model parameter in the finite element model file, and constructing a new finite element model text file according to the other original model parameters and the modified model parameter.
Preferably, the modification requirement includes one or a combination of any more of a modified material parameter, a modified constraint condition parameter, a modified geometric parameter, a modified load parameter and a modified mesh division parameter; the original model parameters comprise one or the combination of any more of material parameters, constraint condition parameters, geometric parameters, load parameters and grid division parameters.
Preferably, the step of determining the modified model parameters according to the original model parameters and the modification requirement comprises the following steps:
reading the content of the modification requirement, determining the type of the modification requirement, calling a parameter modification model of a corresponding type according to the type of the modification requirement, and inputting the content of the modification requirement and the original model parameter of the corresponding type into the corresponding parameter modification model to obtain the modified model parameter.
Preferably, the modification requirement is to scale the length, width and height of the finite element model; the original model parameters are original model node coordinates, and the modified model parameters are determined according to the original model parameters and the modification requirements, and the method comprises the following steps:
constructing a parameter modification model for scaling the length, width and height of the finite element model, wherein the parameter modification model comprises the following steps:
in the formula (I), the compound is shown in the specification,
modified coordinates for the ith node, F (x) a parameter modification model,
as the original coordinates of the ith node, ciAs a transformed value of the coordinates of the ith node, liThe maximum distance, x, between the original coordinate of the ith node and the coordinate of the base point of the original model in the moving direction of the ith nodeoIs the base point coordinates of the original model.
A computer system comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above when executing the computer program.
A computer storage medium having a computer program stored thereon, which when executed by a processor, performs the steps of any of the above methods.
The invention has the following beneficial effects:
1. the method, the system and the storage medium for modeling the finite element parametric model acquire an original text file of the finite element model and modify requirements; reading original model parameters of corresponding types from the finite element model text file according to the modification requirement; determining modified model parameters according to the original model parameters and the modification requirements; compared with the prior art, the method for modifying the finite element model can realize the modification of the model without calling finite element model modeling software such as CAD (computer aided design) software, CAE (computer aided engineering) software and the like, and has no compatibility problems of incomplete product characteristic information transmission and multi-software integration between different software platforms in parametric modeling software based on a secondary development method.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a finite element parametric model modeling method in the present invention;
FIG. 2 is a flow chart of a finite element parametric model modeling method in a preferred embodiment of the present invention;
FIG. 3 is a grid diagram of a simply supported beam finite element model in a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of coordinate transformation in a preferred embodiment of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
as shown in FIG. 1, the invention discloses a finite element parametric model modeling method, comprising the following steps:
acquiring an original finite element model text file and a modification requirement;
reading original model parameters of corresponding types from the finite element model text file according to the modification requirement;
determining modified model parameters according to the original model parameters and the modification requirements;
and directly modifying the original finite element model text file according to the modified model parameters.
In addition, in this embodiment, the present invention further discloses a computer system, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of any one of the methods described above are implemented.
In addition, in the embodiment, the invention also discloses a computer storage medium, on which a computer program is stored, and the program is executed by a processor to implement the steps in any one of the methods.
The method, the system and the storage medium for modeling the finite element parametric model acquire an original text file of the finite element model and modify requirements; reading original model parameters of corresponding types from the finite element model text file according to the modification requirement; determining modified model parameters according to the original model parameters and the modification requirements; compared with the prior art, the method for modifying the finite element model can realize the modification of the model without calling finite element model modeling software such as CAD (computer aided design) software, CAE (computer aided engineering) software and the like, and has no compatibility problems of incomplete product characteristic information transmission and multi-software integration between different software platforms in parametric modeling software based on a secondary development method.
Example two:
the second embodiment is an extended embodiment of the first embodiment, and is different from the first embodiment in that specific steps of the finite element parametric model modeling method are refined.
In the embodiment, the finite element parametric model modeling method comprises the following steps:
acquiring an original finite element model text file and a modification requirement; reading original model parameters of corresponding types from the finite element model text file according to the modification requirement;
specifically, the modification requirement includes modification parameters and modification types, wherein the modification parameters include one or a combination of any more of modification material parameters, modification constraint condition parameters, modification geometric parameters, modification load parameters and modification meshing parameters; the original model parameters comprise one or the combination of any more of material parameters, constraint condition parameters, geometric parameters, load parameters and grid division parameters.
Determining modified model parameters according to the original model parameters and the modification requirements;
specifically, the method comprises the following steps:
reading the content of the modification requirement, determining the type of the modification requirement, calling a parameter modification model of a corresponding type according to the type of the modification requirement, and inputting the content of the modification requirement and the original model parameter of the corresponding type into the corresponding parameter modification model to obtain the modified model parameter.
And directly modifying the original finite element model text file according to the modified model parameters.
Specifically, the method comprises the following steps:
and replacing the modified model parameters with the corresponding original model parameters in the original finite element model text file to obtain the modified finite element model text file.
As an alternative to the above solution, the method for directly modifying the original finite element model text file according to the modified model parameters also includes the following steps:
reading other original model parameters except the model parameter corresponding to the modified model parameter in the finite element model file, and constructing a new finite element model text file according to the other original model parameters and the modified model parameter.
Example three:
the third embodiment is an extended embodiment of the second embodiment, and is different from the second embodiment in that specific steps and specific parameters of the finite element parametric model modeling method are further refined.
In this embodiment, the finite element parametric modeling method first uses CAD software to perform geometric modeling, uses CAE software to perform mesh division and other preprocessing work to complete the initial establishment of the finite element model, and then directly modifies the coordinates of the associated nodes in the original finite element model file according to the size parameters by using an external program written in fortran or other programming languages to implement the finite element parametric modeling.
Specifically, as shown in fig. 2, the method for modeling a finite element parametric model in this embodiment specifically includes the following steps:
1. using UG or other geometric modeling software to establish a geometric model of a finite element analysis model to be performed, using CAE software to perform meshing and other pre-processing work, establishing an initial finite element model of the model to be modified, and obtaining a finite element model file 0. dyn;
2. reading the size parameter of the size required to be modified in each experiment and the total times of the experiments from an experiment schedule table;
3. reading model node coordinates in the initial finite element model file 0, dyn;
the dimension transformation of the three-dimensional model is microscopically expressed as the movement of a line or a plane, the dimension change of the model in the CAD software is realized by moving other line surfaces by taking a certain plane as a reference surface, the line or the plane are both composed of points, and the moved line or the plane essentially moves nodes with common coordinates (one or two coordinates in x, y and z coordinates are the same), so that the dimension change of the finite element model can be realized by changing the dimension of the geometric model in the CAD software or directly modifying the node information of the model in the finite element model file to modify the dimension of the model. Firstly, coordinate information of nodes is read, the nodes are identified and controlled through the coordinates of the nodes, base point coordinates are selected, a relational expression of a node coordinate conversion value and a model size conversion value (difference value between a new size and an original size) is found, the nodes on the same surface or the same line are controlled through common coordinates by utilizing the characteristic that the nodes on the same surface or line have the common coordinates, conversion is carried out on the basis of the relational expression of the node coordinate conversion value and the model size conversion value, and individual nodes are not controlled independently through node numbers to change, so that the model size is modified through modifying the node coordinates.
As shown in FIG. 3, the finite element model of a simply supported beam has a length, width and height of 400X 200mm, and the length, width and height of the model are reduced by 10mm (the values of the transformation for the length, width and height are all-10 mm). First, the coordinates of a base point are selected to be (200, -100, -250), and the size of the model is changed by transforming the x, y, z coordinates of the model.
In the longitudinal direction (y direction) of the model: the model length direction is y direction, there are 20 grids in total, and if the model length is reduced by 10mm while keeping the number of grids unchanged, the reduction 10/20 is 0.5mm for each grid, the distance L that each node needs to move in the y direction (the y coordinate of the node needs to be increased or decreased by L) is different, and the different node moving distances are dependent on the distance from the base point:
in the formula, LiDistance to be moved for the i-th node, yiIs the y-axis coordinate of the ith node.
The new coordinates of the node are equal to the original node coordinates minus the node movement distance LiAlso equal to the original node coordinates plus the node transformation values, i.e.:
similarly, in the width direction (x direction) of the model, there are:
similarly, in the model height direction (z direction) of the model, there are:
4. coordinate transformation
As can be seen from the above, the point moving distance is related to the ratio of the distance between the node and the base point to the total length, and the coordinate information of the node to be changed is updated according to the following common coordinate transformation formula:
in the formula, c is a size conversion value, l is the maximum distance between the node to be moved and the base point in the moving direction, x is the original coordinate of the node, x is the new coordinate of the node, and x is the coordinate of the base point.
The transformation diagram is shown in fig. 4, in the diagram, the mesh size of a model a is 10mm, the total length is 100mm, if the leftmost node a is used as a base point, the size parameter c is 10mm, and the length-direction coordinates of each node in the model a are transformed according to the above formula, then the nodes except the base point in the model a move rightward by 1,2.
The conversion formula is edited into a subprogram as a basic tool in the parametric modeling method, the subprogram can be called in a main program according to the specific situation of the model and needs to be converted according to the needs, and the base point coordinate, the coordinate of the node to be moved, the maximum distance between the mobile node and the base point and the size parameter of the input subprogram are different if the models are different and the sizes need to be converted.
5. Generating a new model
Firstly, modifying node coordinates according to size parameters, then sequentially writing the pre-processing information and the modified node coordinate information according to the format and the sequence of the initial finite element model file 0, dyn, generating a new finite element model file new.dyn, completing model modification once, packaging the module into a subprogram, and circularly calling in a main program to automatically update a finite element model according to an experiment schedule so as to realize finite element modeling parameterization.
In summary, the finite element parametric modeling method of the present invention has two advantages compared with the current parametric modeling method:
the method realizes the modification of the model by directly modifying the node coordinates in the text file through an external program, does not need to call CAD (computer-aided design) and CAE (computer-aided engineering) software in the parametric modeling analysis process, has simpler process, does not need to develop a special program to control interfaces and data exchange between different software and systems, and does not have the compatibility problems of incomplete product characteristic information transmission and multi-software integration between different software platforms in the parametric modeling software based on a secondary development method;
the initial establishment of the finite element model is to carry out the geometrical model through CAD, the CAE software carries out the pre-treatment such as grid division and the like, compared with the method of directly establishing the parameterized finite element model in a text file through a parameterized design language, the modeling process of the method is easier to realize, more complex models can be processed, the requirements on the programming capability of a user and knowledge on aspects such as finite element theory, grid generation and the like are relatively lower, the user only needs to learn the programming language suitable for processing large-scale numerical operation in a one-door-oriented process, and the method can be applied to the development of the finite element parameterized modeling software of related products and has stronger operability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A finite element parametric model modeling method is characterized by comprising the following steps:
acquiring an original finite element model text file and a modification requirement;
reading original model parameters of corresponding types from the finite element model text file according to the modification requirement;
determining modified model parameters according to the original model parameters and the modification requirements;
and directly modifying the original finite element model text file according to the modified model parameters.
2. A method for modeling a finite element parametric model according to claim 1, wherein the original text file of the finite element model is modified directly according to the modified model parameters, comprising the steps of:
and replacing the modified model parameters with the corresponding original model parameters in the original finite element model text file to obtain the modified finite element model text file.
3. A method for modeling a finite element parametric model according to claim 1, wherein the original text file of the finite element model is modified directly according to the modified model parameters, comprising the steps of:
reading other original model parameters except the model parameter corresponding to the modified model parameter in the finite element model file, and constructing a new finite element model text file according to the other original model parameters and the modified model parameter.
4. A finite element parametric model modeling method according to claim 1, wherein the modification requirement comprises one or a combination of any of a material modification parameter, a constraint condition modification parameter, a geometric modification parameter, a load modification parameter and a mesh division modification parameter; the original model parameters comprise one or the combination of any more of material parameters, constraint condition parameters, geometric parameters, load parameters and grid division parameters.
5. A finite element parametric model modeling method according to claim 4, wherein determining modified model parameters based on the original model parameters and the modification requirements comprises the steps of:
reading the content of the modification requirement, determining the type of the modification requirement, calling a parameter modification model of a corresponding type according to the type of the modification requirement, and inputting the content of the modification requirement and the original model parameter of the corresponding type into the corresponding parameter modification model to obtain the modified model parameter.
6. The finite element parametric model modeling method of claim 1, wherein the modification requirement is to scale the length, width and height of the finite element model; the original model parameters are original model node coordinates, and the modified model parameters are determined according to the original model parameters and the modification requirements, and the method comprises the following steps:
constructing a parameter modification model for scaling the length, width and height of the finite element model, wherein the parameter modification model comprises the following steps:
in the formula (I), the compound is shown in the specification,
modified coordinates for the ith node, F (x) a parameter modification model,
as the original coordinates of the ith node, ciAs a transformed value of the coordinates of the ith node, liThe maximum distance, x, between the original coordinate of the ith node and the coordinate of the base point of the original model in the moving direction of the ith nodeoIs the base point coordinates of the original model.
7. A computer system comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of the preceding claims 1 to 6 are carried out by the processor when the computer program is executed by the processor.
8. A computer storage medium having a computer program stored thereon, wherein the program is adapted to perform the steps of the method of any one of claims 1 to 6 when executed by a processor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114357574A (en) * | 2021-12-20 | 2022-04-15 | 万翼科技有限公司 | Component editing method, device, equipment and storage medium based on parameterized drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040064295A1 (en) * | 2002-09-26 | 2004-04-01 | Jiping Zhang | Methods for modular-parametric-finite-element modeling |
| CN106384384A (en) * | 2016-09-18 | 2017-02-08 | 上海理工大学 | Shape optimization algorithm for three-dimensional product model |
| CN109977526A (en) * | 2019-03-21 | 2019-07-05 | 北京航空航天大学 | A method of the adjustment wing finite element model based on three-dimensional CST technology |
| CN110781625A (en) * | 2019-10-29 | 2020-02-11 | 北京空间技术研制试验中心 | ABAQUS software-based parametric modeling simulation analysis method |
| CN111985130A (en) * | 2020-07-23 | 2020-11-24 | 东南大学 | Excel-based parametric modeling and analyzing method for wave-shaped steel web combined channel beam Abaqus |
-
2021
- 2021-05-25 CN CN202110570455.7A patent/CN113297764A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040064295A1 (en) * | 2002-09-26 | 2004-04-01 | Jiping Zhang | Methods for modular-parametric-finite-element modeling |
| CN106384384A (en) * | 2016-09-18 | 2017-02-08 | 上海理工大学 | Shape optimization algorithm for three-dimensional product model |
| CN109977526A (en) * | 2019-03-21 | 2019-07-05 | 北京航空航天大学 | A method of the adjustment wing finite element model based on three-dimensional CST technology |
| CN110781625A (en) * | 2019-10-29 | 2020-02-11 | 北京空间技术研制试验中心 | ABAQUS software-based parametric modeling simulation analysis method |
| CN111985130A (en) * | 2020-07-23 | 2020-11-24 | 东南大学 | Excel-based parametric modeling and analyzing method for wave-shaped steel web combined channel beam Abaqus |
Non-Patent Citations (1)
| Title |
|---|
| 刘助春: "吸能导向抗撞拓扑结构多目标稳健性设计的参数化建模方法及软件开发", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114357574A (en) * | 2021-12-20 | 2022-04-15 | 万翼科技有限公司 | Component editing method, device, equipment and storage medium based on parameterized drive |
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Application publication date: 20210824 |