CN106919763A - A kind of dimensionally-optimised method of product structure - Google Patents
A kind of dimensionally-optimised method of product structure Download PDFInfo
- Publication number
- CN106919763A CN106919763A CN201710132322.5A CN201710132322A CN106919763A CN 106919763 A CN106919763 A CN 106919763A CN 201710132322 A CN201710132322 A CN 201710132322A CN 106919763 A CN106919763 A CN 106919763A
- Authority
- CN
- China
- Prior art keywords
- optimization
- model
- integrated
- file
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention relates to computer simulation technique field, more particularly to a kind of dimensionally-optimised method of product structure, the method is parameterized including threedimensional model；FEM model is automated；Optimization Platform is integrated.The present invention is based on CAD, CAE and optimization software, sets up related data connection, realizes the parametrization of product size optimization, automates and integrated.Integrated optimization flow of the present invention, realizes automation modeling, analysis and optimizes, it is considered to nonlinear problem, improves optimization quality and operating efficiency, shortens the R＆D cycle.
Description
Technical field
The present invention relates to computer simulation technique field, more particularly to a kind of dimensionally-optimised method of product structure.
Background technology
With advances in technology with the lifting of the market demand, product structure optimization was designed in the whole R＆D cycle of product
Occupy very big proportion, particularly more prominent in Aero-Space, weaponry and automobile industry, its main purpose is to complete to subtract
Light construction weight, controls production cost, reduces stress level, the work such as improved structure performance and raising safe life.
Traditional product method for optimizing structure size of multi is, based on FEM model, to be entered by shell unit model or body unit model
Row is dimensionally-optimised, and it has following defect：
The optimization method of shell unit model is generally used for optimizing the thickness of slab of structural member, and optimized variable is single, and optimization range has
Limit；And shell unit operation strategies are limited, little a part of structural member is only applicable to.
The optimization method of body unit model sets up configuration variable by distortion of the mesh instrument, and deformation process is carried out to grid
Afterwards, it is easily caused mesh quality poor, so optimization range is limited, and mesh quality is poor, easily causes calculating and do not restrain.
The content of the invention
For the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of direct drive efficiently, fast and automatically changed
The dimensionally-optimised method of product structure that dynamic CAD model changes, it disclosure satisfy that the performances such as structural strength, rigidity, stability.
A kind of dimensionally-optimised method of product structure provided in an embodiment of the present invention, the method includes：
The first step, threedimensional model parametrization；
Based on Three-dimensional Design Software CATIA, the performance requirement according to product structure is arranged and analyzing three-dimensional model,
Determine the optimized variable parameter of structure, and each parameter is named respectively, set the mobility scale of each Optimal Parameters, it is ensured that be raw
Into the reasonability of new model, the Parameter Function Unit of threedimensional model is realized in design, derives design parameter file defeated as Optimization Platform
The template file for entering；
Second step, FEM model automation；
Threedimensional model is imported into finite element software HyperMesh, automatic grid division is compiled again to stress concern area's grid
Number, addition optimization constraints automatically generates calculating input file, calls Abaqus to calculate and solves, and generates analysis result file；
3rd step, Optimization Platform is integrated；
The integrated CATIA softwares of Optimization Platform HyperStudy and HyperMesh softwares, drive CATIA to change optimized variable
And new strict geometric model is generated, and start HyperMesh and be automatically imported new strict geometric model and solve calculating, generate destination file；Optimization
Platform extracts destination file key message, on the premise of every constraints is met, reasonably optimizing algorithm is selected, by multiple
Iterative calculation, is optimal optimization aim.
Further, in the above method, the integrated step of Optimization Platform is as follows：
1) threedimensional model is automatically updated；
2) FEM model is set up automatically；
3) analysis result file, judges whether target optimizes；
4) optimal objective in this way, is then obtained, if not, driving parameter change to perform the step of updating threedimensional model.
Compared with prior art, the dimensionally-optimised method of product structure of the present invention, including threedimensional model is parameterized；Finite element mould
Type is automated；Optimization Platform is integrated.The present invention is based on CAD, CAE and optimization software, sets up related data connection, realizes product
Dimensionally-optimised parametrization, automation and integrated.Integrated optimization flow of the present invention, realizes automation modeling, analysis and optimizes,
Consider nonlinear problem, improve optimization quality and operating efficiency, shorten the R＆D cycle.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
The dimensionally-optimised method flow diagram of a kind of product structure that Fig. 1 is provided for the present invention；
A kind of block optimized variable front view that Fig. 2 is provided for the present invention
A kind of block optimized variable side view that Fig. 3 is provided for the present invention；
A kind of block optimized variable top view that Fig. 4 is provided for the present invention；
A kind of block optimized variable axonometric drawing that Fig. 5 is provided for the present invention；
A kind of Optimization Platform integrated flow figure that Fig. 6 is provided for the present invention；
Stop block structure comparison diagram before and after a kind of optimization that Fig. 7 is provided for the present invention；
Block comparative bid parameter before and after a kind of optimization that Fig. 8 is provided for the present invention.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only some embodiments of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention is described in further detail with reference to Figure of description.
As shown in figure 1, the embodiment of the invention discloses a kind of dimensionally-optimised method of product structure, the method includes：
Step S101, threedimensional model parametrization；
Based on Three-dimensional Design Software CATIA, the performance requirement according to product structure is arranged and analyzing three-dimensional model,
Determine the optimized variable parameter of structure, and each parameter is named respectively, set the mobility scale of each Optimal Parameters, it is ensured that be raw
Into the reasonability of new model, the Parameter Function Unit of threedimensional model is realized in design, derives design parameter file defeated as Optimization Platform
The template file for entering；
Step S102, FEM model automation；
Threedimensional model is imported into finite element software HyperMesh, automatic grid division is compiled again to stress concern area's grid
Number, addition optimization constraints automatically generates calculating input file, calls Abaqus to calculate and solves, and generates analysis result file；
Step S103, Optimization Platform is integrated；
The integrated CATIA softwares of Optimization Platform HyperStudy and HyperMesh softwares, drive CATIA to change optimized variable
And new strict geometric model is generated, and start HyperMesh and be automatically imported new strict geometric model and solve calculating, generate destination file；Optimization
Platform extracts destination file key message, on the premise of every constraints is met, reasonably optimizing algorithm is selected, by multiple
Iterative calculation, is optimal optimization aim.
CATIA of the present invention is CAD/CAE/CAM integrated softwares, and it provides parameter driven and rear parametrization ability.By
Unified data platform is based in the modules of CATIA, therefore the modules of CATIA have real full associativity,
The modification of threedimensional model, can completely be embodied in two dimension, and finite element analysis, in the program of mould and digital control processing.
The embodiment of the present invention is based on Three-dimensional Design Software CATIA, the performance requirement according to structure, arranges and analyze three
Dimension module, determines the optimized variable parameter of structure, and R, T, L1, L2, optimized variable such as Fig. 2 to Fig. 5 are named each parameter respectively
It is shown, set the mobility scale of each Optimal Parameters, it is ensured that the reasonability of generation new model.
The present invention uses finite element software HyperMesh, with powerful FEM meshing pretreatment function with after
Processing function.The present invention directly inputs CAD geometrical models and FEM model, reduces repeated work and expense for modeling.
In general, the time of CAE analysis engineer 80% all spent in the foundation of FEM model, in modification and mesh generation,
And the real analysis and solution time is consumed on computer work group station, so, easy to use and flexible powerful using One function,
And handling implement before and after the finite element of convenient data exchange can be carried out with lots of CAD system and finite element solving device, for
The quality and efficiency tool for improving finite element analysis work are of great significance.
The Hypermesh of embodiment of the present invention application has FEM meshing and treatment effeciency very high, and it is at a high speed
Degree, high-quality auto grid plot greatly simplifie the finite element modeling process of complex geometry.
The integrated CATIA softwares of Optimization Platform HyperStudy of the present invention and HyperMesh softwares, to drive CATIA to change
Optimized variable simultaneously generates new strict geometric model, starts HyperMesh and is automatically imported new strict geometric model and solves calculating, generation result text
Part.
As shown in fig. 6, further, the integrated step of Optimization Platform is as follows：
Step S601, automatically updates threedimensional model；
Step S602, sets up FEM model automatically；
Step S603, analysis result file judges whether target optimizes；
Step S604, in this way, then obtains optimal objective, if not, driving parameter change to perform the step for updating threedimensional model
Suddenly.
Embodiment of the present invention Optimization Platform extracts destination file key message, on the premise of every constraints is met,
Selection reasonably optimizing algorithm, calculates by successive ignition, is optimal optimization aim.It is as shown in Figure 7 and Figure 8 optimization front-and-back stop
Block structure comparison diagram and comparative bid parameter.The optimization function of HyperStudy of the present invention improves analysis model and test result
Correlation, reduce development time and cost.
To sum up, the embodiment of the present invention is based on CAD, CAE and optimization software, sets up related data connection, realizes product size
The parametrization of optimization, automation and integrated.The present invention is meeting the condition of the performances such as structural strength, rigidity, stability
Under, there is provided the structural dimension optimization method for designing that a kind of direct drive CAD model that is efficient, fast and automatically changing changes.This hair
Bright integrated optimization flow, realizes automation modeling, analysis and optimizes, it is considered to nonlinear problem, improves optimization quality and work
Efficiency, shortens the R＆D cycle.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (2)
1. a kind of dimensionally-optimised method of product structure, it is characterised in that the method includes：
The first step, threedimensional model parametrization；
Based on Three-dimensional Design Software CATIA, the performance requirement according to product structure is arranged and analyzing three-dimensional model, it is determined that
The optimized variable parameter of structure, and each parameter is named respectively, set the mobility scale of each Optimal Parameters, it is ensured that generation is new
The Parameter Function Unit of threedimensional model is realized in the reasonability of model, design, derives what design parameter file was input into as Optimization Platform
Template file；
Second step, FEM model automation；
Threedimensional model is imported into finite element software HyperMesh, automatic grid division is renumberd to stress concern area's grid,
Addition optimization constraints, automatically generates calculating input file, calls Abaqus to calculate and solves, and generates analysis result file；
3rd step, Optimization Platform is integrated；
The integrated CATIA softwares of Optimization Platform HyperStudy and HyperMesh softwares, drive CATIA to change optimized variable and life
Into new strict geometric model, start HyperMesh and be automatically imported new strict geometric model and solve calculating, generate destination file；Optimization Platform
Destination file key message is extracted, on the premise of every constraints is met, reasonably optimizing algorithm is selected, by successive ignition
Calculate, be optimal optimization aim.
2. method according to claim 1, it is characterised in that the integrated step of Optimization Platform is as follows：
1) threedimensional model is automatically updated；
2) FEM model is set up automatically；
3) analysis result file, judges whether target optimizes；
4) optimal objective in this way, is then obtained, if not, driving parameter change to perform the step of updating threedimensional model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132322.5A CN106919763A (en) | 2017-03-07 | 2017-03-07 | A kind of dimensionally-optimised method of product structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132322.5A CN106919763A (en) | 2017-03-07 | 2017-03-07 | A kind of dimensionally-optimised method of product structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106919763A true CN106919763A (en) | 2017-07-04 |
Family
ID=59460997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710132322.5A Pending CN106919763A (en) | 2017-03-07 | 2017-03-07 | A kind of dimensionally-optimised method of product structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106919763A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992652A (en) * | 2017-11-20 | 2018-05-04 | 国家超级计算深圳中心(深圳云计算中心) | A kind of automation engineering computer sim- ulation method and system |
| CN108664685A (en) * | 2018-03-19 | 2018-10-16 | 北京航空航天大学 | A kind of unmanned helicopter fuselage interior structural optimization method |
| CN108829953A (en) * | 2018-06-01 | 2018-11-16 | 上汽通用五菱汽车股份有限公司 | Manifold modeling method, device and computer readable storage medium |
| CN109800461A (en) * | 2018-12-19 | 2019-05-24 | 北京航空航天大学 | Crucial gabarit parameter optimization method and device for tire construction light-weight design |
| CN110765690A (en) * | 2019-11-05 | 2020-02-07 | 上海波客实业有限公司 | Rubber structure sealing analysis method |
| CN111027192A (en) * | 2019-12-02 | 2020-04-17 | 西安欧意特科技有限责任公司 | Method and system for determining performance parameters |
| CN111859557A (en) * | 2020-06-30 | 2020-10-30 | 淮安骏盛新能源科技有限公司 | Liquid cooling plate structure size optimization method based on Hyperstudy and Fluent combined simulation |
| CN112380650A (en) * | 2020-11-12 | 2021-02-19 | 三一重机有限公司 | Method for designing structural member of working device |
| CN115270645A (en) * | 2022-09-30 | 2022-11-01 | 南昌工程学院 | Design method and system based on ERNIE-DPCNN model |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040122630A1 (en) * | 2002-12-19 | 2004-06-24 | Wallace Ronald Hugh Fife | Method and apparatus for linking finite element models to computer-aided design models |
| CN102184285A (en) * | 2011-05-03 | 2011-09-14 | 三一集团有限公司 | Digital prototyping design integrated development method and system |
| CN105005648A (en) * | 2015-07-06 | 2015-10-28 | 河海大学常州校区 | Dynamic model integrated optimization method for excavator working device |
-
2017
- 2017-03-07 CN CN201710132322.5A patent/CN106919763A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040122630A1 (en) * | 2002-12-19 | 2004-06-24 | Wallace Ronald Hugh Fife | Method and apparatus for linking finite element models to computer-aided design models |
| CN102184285A (en) * | 2011-05-03 | 2011-09-14 | 三一集团有限公司 | Digital prototyping design integrated development method and system |
| CN105005648A (en) * | 2015-07-06 | 2015-10-28 | 河海大学常州校区 | Dynamic model integrated optimization method for excavator working device |
Non-Patent Citations (1)
| Title |
|---|
| 董宇航: "用HyperWorks实现汽车车门的优化设计", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992652A (en) * | 2017-11-20 | 2018-05-04 | 国家超级计算深圳中心(深圳云计算中心) | A kind of automation engineering computer sim- ulation method and system |
| CN108664685A (en) * | 2018-03-19 | 2018-10-16 | 北京航空航天大学 | A kind of unmanned helicopter fuselage interior structural optimization method |
| CN108829953A (en) * | 2018-06-01 | 2018-11-16 | 上汽通用五菱汽车股份有限公司 | Manifold modeling method, device and computer readable storage medium |
| CN109800461A (en) * | 2018-12-19 | 2019-05-24 | 北京航空航天大学 | Crucial gabarit parameter optimization method and device for tire construction light-weight design |
| CN110765690A (en) * | 2019-11-05 | 2020-02-07 | 上海波客实业有限公司 | Rubber structure sealing analysis method |
| CN110765690B (en) * | 2019-11-05 | 2024-02-02 | 上海波客实业有限公司 | Rubber structure seal analysis method |
| CN111027192B (en) * | 2019-12-02 | 2023-09-15 | 西安欧意特科技有限责任公司 | Method and system for determining performance parameters |
| CN111027192A (en) * | 2019-12-02 | 2020-04-17 | 西安欧意特科技有限责任公司 | Method and system for determining performance parameters |
| CN111859557A (en) * | 2020-06-30 | 2020-10-30 | 淮安骏盛新能源科技有限公司 | Liquid cooling plate structure size optimization method based on Hyperstudy and Fluent combined simulation |
| CN111859557B (en) * | 2020-06-30 | 2023-10-13 | 淮安骏盛新能源科技有限公司 | Liquid cooling plate structure size optimization method based on hyperstry and Fluent joint simulation |
| CN112380650B (en) * | 2020-11-12 | 2023-06-23 | 三一重机有限公司 | Design method of structural part of working device |
| CN112380650A (en) * | 2020-11-12 | 2021-02-19 | 三一重机有限公司 | Method for designing structural member of working device |
| CN115270645A (en) * | 2022-09-30 | 2022-11-01 | 南昌工程学院 | Design method and system based on ERNIE-DPCNN model |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106919763A (en) | A kind of dimensionally-optimised method of product structure | |
| CN110188423A (en) | A kind of linear engineering structure fast B IM modeling method based on FEM meshing | |
| CN106407567B (en) | A kind of RV Parametric Design of Reducer modeling method | |
| CN108109206B (en) | Finite element modeling method for opening pressure of lithium battery safety valve | |
| CN104778753A (en) | Three-dimensional modeling implementation method for bridge reinforcement | |
| CN111460711A (en) | Heavy-load AGV frame lightweight design method based on finite element analysis | |
| CN108763647A (en) | A kind of cast machine base light-weight design method | |
| CN108875167A (en) | A kind of construction site three dimensional arrangement optimization method based on BIM technology | |
| CN108829953A (en) | Manifold modeling method, device and computer readable storage medium | |
| CN114676522B (en) | Pneumatic shape optimization design method, system and equipment integrating GAN and migration learning | |
| CN104239639B (en) | Method for simplifying parameter modification of topological optimization model of transmission shell | |
| CN113486429B (en) | Automatic construction method of space intersection structure based on interpolation algorithm | |
| CN107977504A (en) | A kind of asymmetric in-core fuel management computational methods, device and terminal device | |
| CN103810310B (en) | The parametrization equipped towards the asphalt foaming module of bituminous mixing plant determines method | |
| CN103425844A (en) | CAD/CAE (Computer-Aided Design/Computer-Aided Education) system based on data current communication platform and integration method | |
| CN105631135A (en) | Rapid modeling analysis system based on ABAQUS foundation pit excavation and application system thereof | |
| CN101794337A (en) | CAD (Computer-Aided Design)/CAE (Computer-Aided Engineering) system integration method based on layered architecture | |
| CN104615794B (en) | For the mathematical model construction method in three-dimensional electric wiring software | |
| Menzel et al. | Representing the change-free form deformation for evolutionary design optimization | |
| CN109032667A (en) | Adjacency list method for fast establishing and system in a kind of molecular dynamics simulation | |
| CN102831230B (en) | A kind of parts selection method and system of hybrid power assembly | |
| CN110321596B (en) | Locomotive vehicle structure simulation method based on finite element analysis | |
| CN103942397A (en) | Power function-based digital modeling method for shape modification gear | |
| CN115587480A (en) | Digital simulation method and digital simulation device | |
| CN112163361A (en) | Method for realizing dynamic refinement of simulation local grid in thin-wall casing machining process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |
|
| RJ01 | Rejection of invention patent application after publication |