CN105183956A - Simulation processing method and simulation processing apparatus for product data - Google Patents
Simulation processing method and simulation processing apparatus for product data Download PDFInfo
- Publication number
- CN105183956A CN105183956A CN201510520456.5A CN201510520456A CN105183956A CN 105183956 A CN105183956 A CN 105183956A CN 201510520456 A CN201510520456 A CN 201510520456A CN 105183956 A CN105183956 A CN 105183956A
- Authority
- CN
- China
- Prior art keywords
- finite element
- model
- simulation
- simulation analysis
- section
- 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
Abstract
The present invention discloses a simulation processing method and a simulation processing apparatus for product data. The method comprises: receiving a geometric model of a product; performing a finite element (FEM) simulation analysis on parts in the geometric model of the product, wherein a production process of the parts comprises a stretch bending process, and the FEM simulation analysis comprises simulation analysis of the stretch bending process; and outputting a result of the simulation analysis. By adopting the method and the apparatus disclosed by the present invention, the problems that the simple adoption of experimental researches and theoretical analysis methods at present results in poor reliability of a profile material stretch bending process and an inaccurate result of the profile material stretch bending forming are solved.
Description
Technical field
The present invention relates to simulation process field, in particular to a kind of simulation process method and simulation process device of product data.
Background technology
At present, when stretch bending is carried out to section bar, what have does not have process intelligent systematic function, what have only achieves hand-guided, in addition, in actual production process, the determination of stretch bending process parameter, just merely adopt experimental study and economics analysis method, these methods can not a stretch bending Accurate Shaping section bar, cause stretch bending process control procedure complicated, not there is visuality, and the shortcoming of poor reliability, sometimes also need to carry out repeatedly prestretching crook reason and thermal treatment, also artificial school shape will be carried out after formation, thus, it is long to there is the cycle in existing stretch bending forming process, cost is high, and the poor reliability of stretch bending process, the inaccurate problem of section-bending forming result.
For above-mentioned problem, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of simulation process method and simulation process device of product data, merely adopt experimental study and economics analysis method at present at least to solve, cause the poor reliability of stretch bending process, the inaccurate problem of section-bending forming result.
According to an aspect of the embodiment of the present invention, provide a kind of simulation process method of product data, comprise: receive product geometric model, Finite Element Simulation Analysis is carried out to the part in product geometric model, wherein, the production process of part comprises stretch bending process, and Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process, the result that Output simulation is analyzed.
Further, receive product geometric model and comprise: by the interface with graphics software, receive the product geometric model that graphics software exports.
Further, graphics software comprises: CAD application software.
Further, before carrying out Finite Element Simulation Analysis to the part in product geometric model, said method also comprises:
Parameters of The Parts scope is preset according to the Attribute tuning of different part.
Further, carry out Finite Element Simulation Analysis to the part in product geometric model to comprise: set up finite element model by the attribute of product geometric model and part; Control finite element model, on preset direction and/or desired guiding trajectory, deformation occurs; In the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring; Model during collection finite element model stopping generation deformation and model parameter, obtain the result of simulation analysis according to model and model parameter.
Further, the result of Output simulation analysis comprises: following one of at least by predetermined way display: tangential stress, the thinning rate of tangential strain, profile flows, and straight-line segment arches upward, cross section distortion, resilience displacement, residual stress distribution.
Further, predetermined way comprise following one of at least: chart, animation.
Further, after the result that Output simulation is analyzed, said method also comprises: the result Output simulation according to simulation analysis is reported.
According to the another aspect of the embodiment of the present invention, additionally provide a kind of simulation process device of product data, comprising: receiving element, for receiving product geometric model; Simulation analysis unit, for carrying out Finite Element Simulation Analysis to the part in product geometric model, wherein, the production process of part comprises stretch bending process, and Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process; First output unit, for the result that Output simulation is analyzed.
Further, receiving element comprises: interface module, for by the interface with graphics software, receives the product geometric model that graphics software exports.
Further, graphics software comprises: CAD application software.
Further, the simulation process device of product data also comprises: adjustment unit, for presetting Parameters of The Parts scope according to the Attribute tuning of different part.
Further, simulation analysis unit comprises: MBM, for setting up finite element model by the attribute of product geometric model and part; , on preset direction and/or desired guiding trajectory, there is deformation for controlling finite element model in control module; Monitoring modular, in the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring; Acquisition module, for gather finite element model stop occur deformation time model and model parameter, obtain the result of simulation analysis according to model and model parameter.
Further, the first output unit comprises: display module, for following one of at least by predetermined way display: molding resilience, surface wrinkling and break, the flowing of variation in thickness, material, Strain Distribution.
Further, predetermined way comprise following one of at least: chart, animation.
Further, the simulation process device of product data also comprises: the second output unit, reports for the result Output simulation according to simulation analysis.
In embodiments of the present invention, adopt and receive product geometric model, Finite Element Simulation Analysis is carried out to the part in product geometric model, wherein, the production process of part comprises stretch bending process, Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process, the mode of the result that Output simulation is analyzed, solve and merely adopt experimental study and economics analysis method at present, cause the poor reliability of stretch bending process, the technical matters of the inaccurate problem of section-bending forming result, achieve and can compare deformation tendency in Accurate Prediction stretch bending forming process and contingent wrinkling, the forming defects such as break, the calculating of resilience also there is certain precision, for rational stretch wrap forming technique provides guidance.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the simulation process method of a kind of product data according to the embodiment of the present invention one;
Fig. 2 is a kind of optional module diagram based on the section-bending forming process design system of LS-DYNA finite element analysis software according to the embodiment of the present invention one;
Fig. 3 is the structural representation of the simulation process device of a kind of product data according to the embodiment of the present invention two; And
Fig. 4 is a kind of optional structural representation based on the section-bending forming process design system of LS-DYNA finite element analysis software according to the embodiment of the present invention two.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment one
According to the embodiment of the present invention, provide a kind of simulation process embodiment of the method for product data, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Fig. 1 is the process flow diagram of the simulation process method of a kind of product data according to the embodiment of the present invention one, and as shown in Figure 1, the method comprises the steps:
Step S102, receives product geometric model.
Step S104, carries out Finite Element Simulation Analysis to the part in product geometric model, and wherein, the production process of part comprises stretch bending process, and Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process.
In the application above-mentioned steps S104, when Finite Element Simulation Analysis is carried out to the part in product geometric model, such as, LS-DYNA finite element analysis software can be adopted to carry out Finite Element Simulation Analysis, in the present embodiment, section-bending forming process design system based on LS-DYNA finite element analysis software is a set of stretch bending cae system using VC6.0 and OpenGL language stand-alone development, be mainly used in having assisted stretch bending Trajectory Design, simultaneously with finite element FEM (FiniteElementMethod, finite element analysis) software linking, realize the virtual stretch bending of stretch bending, process optimization and quality control.
Step S106, the result that Output simulation is analyzed.
In the application above-mentioned steps S106, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, particularly, after reception product geometric model, Finite Element Simulation Analysis is carried out to the part in this product geometric model, finally, the result of the part in product geometric model being carried out to Finite Element Simulation Analysis can be exported, by the result of above-mentioned Finite Element Simulation Analysis, the deformation of section bar in stretch wrap forming can be understood in detail, for industrial analysis, Design of Dies and blank prepare the foundation providing science.
The simulation process method of the product data that the present embodiment provides, by receiving product geometric model, Finite Element Simulation Analysis is carried out to the part in this product geometric model, wherein, the production process of part comprises stretch bending process, Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process, the result that Output simulation is analyzed, thus solve current merely employing experimental study and economics analysis method, cause the poor reliability of stretch bending process, the inaccurate problem of section-bending forming result, achieve the virtual stretch bending to stretch bending, process optimization and quality control, effectively predict the forming defects that may exist in stretch bending process, and propose corresponding solution, for rational stretch wrap forming technique provides guidance.
Alternatively, in the present embodiment, receive product geometric model and comprise: by the interface with graphics software, receive the product geometric model that graphics software exports.
Alternatively, in the present embodiment, above-mentioned graphics software comprises: CAD (ComputerAidedDesign, computer-aided equipment) application software, such as, receive product geometric model and by the interface with CAD application software, the product geometric model that CAD application software exports can be received.
Particularly, the product geometric model receiving the output of CAD application software can be section bar parts profile model, this model section bar parts profile data representation.It should be noted that, by the simulating analysis in the embodiment of the present application, the data-interface good with image softwares such as CAD application software is provided, possesses pre-process and post-process, analysis and solution function, analytic product geometric model can be treated easily repair, farthest approach die face.
Particularly, above-mentioned section bar parts profile data file can adopt correlation technique to generate according to used CAD application software by user oneself, about the section bar parts profile data file after generating can be " gdo form section bar parts profile data file " or " igs form section bar parts profile data file ", wherein, " gdo form parts profile data file " is used for describing the contour shape of stretch bending part, file layout is decided at the higher level but not officially announced by stretch bending process design software, this gdo form section bar parts profile data file is a text, content format is as follows: the coordinate of discrete point is described by X and Y order, separate with " space " or " tab " between data, finally must comprise a null.Wherein, " igs form section bar parts profile data file " is a kind of general geometric data file, and the igs formatted file of PSBPD-SF software requirement must comprise the information of parts profile discrete point.
It should be noted that, three-dimensional CAD application software generally all has the function generating discrete point on 2-d contour, after generating discrete point, hides other geometric figure, only discrete point is saved as igs formatted file and export.
Also it should be noted that, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, and above-mentioned LS-DYNA finite element analysis software directly can also read in the section bar parts profile data file generated by three-dimensional CAD application software.
Particularly, the product geometric model receiving the output of CAD application software can also be section bar part cross-section model, and this model outline data of section bar part cross-section represents.It should be noted that, this outline data can leave in a text in advance, after cross section maker .exe program reads in cross-sectional profiles data file, xsect can be divided into automatically triangular mesh and (namely obtain cross section gridded data file, cross section gridded data file is a kind of data file of grid configuration, comprise the discretize information in cross section: cell data and node data, in addition, data file ending must comprise a line mould support dot information), then the transverse section of section material data file required for section bar stretch bending process design system is exported.
Also it should be noted that, in the process obtaining part cross-section gridded data file, generally speaking, transverse section of section material (plane) is always made up of two kinds of shape facilities: outline characteristic sum hole characteristic in several.Outline and endoporus can be made up of straight-line segment, arc section and SPL section respectively, and usually, outline is by moving towards counterclockwise, and endoporus is by clockwise trend.Without loss of generality, can suppose that outline and endoporus form by straight-line segment, because any nonlinear type segment of curve all can go to approach with straight-line segment.
Fig. 2 is a kind of optional module diagram based on the section-bending forming process design system of LS-DYNA finite element analysis software according to the embodiment of the present invention one, as shown in Figure 2, this section-bending forming process design system can comprise as lower module: stretch bending MBM 101, clamp Trajectory Design module 103, orbiting motion emulation module 105, technique information module 107, view display control module 109, finite element interface module 111, file operation module 113, help module 115.
Alternatively, in the present embodiment, before carrying out Finite Element Simulation Analysis to the part in product geometric model, the simulation process method of the said goods data also comprises:
Step S1040, presets Parameters of The Parts scope according to the Attribute tuning of different part.
Particularly, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, before carrying out Finite Element Simulation Analysis to the part in product geometric model, the simulation process method of the said goods data also comprises: preset Parameters of The Parts scope according to the Attribute tuning of different part.Such as, in the relevant information (classification of such as material) of material properties page input part material, after input material information, be switched to the attribute of component page, this attribute page provides the determination mode of two profiles material charge length (this partial-length is the effective length of sectional material blank, does not comprise the length accommodating end): surplus mode or given length mode.Select surplus mode, the surplus (default value is 150mm) at two ends, left and right need be provided respectively, if the length of sectional material blank is known, then can select given length mode, in length edit box, input corresponding data (being the effective length of sectional material blank) herein.Such as: when material properties page setup title material is SUS301L, arrange that elastic modulus is 195000MPa, yield strength is 520MPa, tensile strength is 800MPa; At attribute of component page setup profile length way selection: two ends surplus, the left side: 150mm, the right 150mm; Part profile length, length are set at the attribute of component page (given length mode): 1160mm.
It should be noted that, Trajectory Design can also be completed according to material properties and attribute of component.After the attribute of component page completes, amount of tension property pages can be switched to, in corresponding edit box, input tensile force, prestretched rate, coated process Deformation control coefficient and benefit draw the parameters such as extensibility, now, section-bending forming process design system can complete the automatic calculating of loading track fast.Such as: be next switched to amount of tension property pages, amount of tension prestretching extensibility is set: 1%, coated process Deformation control coefficient 1, selects benefit to draw place, mend and draw extensibility: 0.25%, now, section-bending forming process design system can complete the automatic calculating of loading track fast.After loading track has calculated, loading track display menu and next step the corresponding function of motion simulation menu are activated, and click loading track display menu, can check loading track.
Alternatively, in the present embodiment, carry out Finite Element Simulation Analysis to the part in product geometric model to comprise:
Step S1042, sets up finite element model by the attribute of product geometric model and part.
In the application above-mentioned steps S1042, the said goods geometric model can comprise: section bar parts profile model and section bar part cross-section model.The section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, this section-bending forming process design system comprises stretch bending MBM 101, clamp Trajectory Design module 103, it should be noted that, when setting up finite element model, section-bending forming process design system in the embodiment of the present application can also provide one group of guide dialog box, user can be helped to complete the foundation of finite element model rapidly, substantially increase the efficiency of pre-treatment.Such as, guide dialog box can set up finite element model by providing following information:
1) reference contours data, are read in.Now, user chooses required section bar parts profile line data (.igs or .gdo formatted file), click open button, result just can be presented at reference contours data and to read in and on graphic display interface, such as, left side list outline on data, the outline line figure that right side display is corresponding.
2), cross-section file is read in.Now, user's choosing is corresponding section bar part section data (.sec formatted file) then, click open button, read in section bar cross-section data, next the corresponding die location in cross section is adjusted as required, by clicking drop-down list box (such as: click rotary knob, geometric center C button or mould summit B button) operate, adjust cross section opposite position, next be switched to reference contours line position and clamp position of center line to set a property page, at this moment according to actual conditions, relevant data can be set (such as: click mould summit B button, reference contours point R, geometric center C button or clamp central point J button are arranged), enter key more new images display is pressed after input data, can see after being provided with that section bar parts profile line appears at graph area, namely parts information reads in result and is presented at graph area.
Now, the foundation and the parts information that complete finite element model have read in.
Step S1044, controls finite element model, on preset direction and/or desired guiding trajectory, deformation occurs.
In the application above-mentioned steps S1044, can according to above-mentioned simulation track method for designing, after completing simulation track according to material properties and attribute of component and presetting, control finite element model, on preset direction and/or desired guiding trajectory, deformation occurs, it should be noted that, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, this section-bending forming process design system also comprises orbiting motion emulation module 105, the motion simulation menu of above-mentioned section-bending forming process design system additionally provides the one group of operation controlling clamp motion simulation, comprise and start emulation, stop emulation, get back to original state, direct arrival end-state, single step is advanced, single step retrogressing etc.Such as, click and start simulation operations button, just can realize controlling the operation that deformation occurs finite element model on preset direction and/or desired guiding trajectory.
Step S1046, in the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring.
In the application above-mentioned steps S1046, in the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring.Particularly, in the process of finite element model generation deformation, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, this simulating analysis additionally provides subsidiary function, this function comprises: technique information, the functions such as trajectory calculation parameter adjustment, namely this section-bending forming process design system comprises technique information module 107, such as, suitable adjustment can be made to the following parameter in technique information, technique information comprises: part cornerite, profile size (blank effective length, left length, right length), prestretching distortion (amount of tension, breaking elongation, tensile force), draw packet shaping (amount of tension, breaking elongation, tensile force), benefit draws distortion (amount of tension, breaking elongation, tensile force), friction factor (0-0.2), coated angle step etc.In the process of finite element model generation deformation, exceeding default Parameters of The Parts scope when monitoring Parameters of The Parts, trajectory parameters can be changed by adjusting above-mentioned technique information, solving the production practical problems in shape bending forming process surely.
Step S1048, model during collection finite element model stopping generation deformation and model parameter, obtain the result of simulation analysis according to model and model parameter.
In the application above-mentioned steps S1048, model during collection finite element model stopping generation deformation and model parameter, obtain the result of simulation analysis according to model and model parameter.In addition, can also carry out treating stretch bending part stretch bending resilience numerical simulation, analyze the springback capacity of shaping rear part, and modify to meet production requirement to springback capacity.It should be noted that, during springback calculation, select 3 nodes not on same straight line, retrain 6 translational degree of freedom (dynaform-pc default to 1 joint constraint 1,2,3DOF, 2 joint constraints 1,2DOF, 3 joint constraint 1 degree of freedom.1,2,3 x, y, z direction is represented respectively), after adjustment, 2 joint constraints 2,3DOF, 3 joint constraint 3DOFs.Such as, when springback calculation constraint is revised, the TC item of 2 nodes is the TC item of 4,3 nodes is 1, then after revising, the TC item of 2 nodes is the TC item of 5,3 nodes is 3.
It should be noted that, Finite Element Simulation Analysis is carried out to part stretch bending process, the deformation of section bar in stretch wrap forming can be understood in detail, and calculate mould springback compensation amount, for industrial analysis, Design of Dies and blank prepare the foundation providing science.
Alternatively, in the present embodiment, the result of Output simulation analysis comprises: following one of at least by predetermined way display: tangential stress, the thinning rate of tangential strain, profile flows, and straight-line segment arches upward, cross section distortion, resilience displacement, residual stress distribution.
Particularly, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, the result of Output simulation analysis comprises: following one of at least by predetermined way display: tangential stress, tangential strain (in such as face principal strain), thinning rate, profile flows, straight-line segment arches upward (such as intermediate symmetry face arch upward distance or middle straight line segment encircle outward), cross section distortion (such as cross section distortion and Z-direction flow), resilience displacement (such as normal direction resilience displacement), residual stress distribution.
Alternatively, in the present embodiment, above-mentioned predetermined way comprise following one of at least: chart, animation.
Particularly, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, the form such as chart and/or animation can be passed through, accurately analyze Form springback in stretch wrap forming process, surface wrinkling and breaking, material flows, variation in thickness, the situations such as Strain Distribution, in addition, this section-bending forming process design system also comprises view display control module 109, by associative operation, view display control module is controlled to figure display effect, comprise projecting direction to select, display mode selects (illumination or line frame graph), full screen display, local scale, rotate, translation etc.
Alternatively, in the present embodiment, after the result that Output simulation is analyzed, the simulation process method of the said goods data also comprises: the result Output simulation according to simulation analysis is reported.
Particularly, after the result that Output simulation is analyzed, the simulation process method of the said goods data also comprises: the result Output simulation according to simulation analysis is reported, such as, data in stretch bending process are gathered, analyze, classification etc., the data such as technique information, loading curve, forming quality are exported with the form of simulation report, for later processing provides reference.
It should be noted that, this section-bending forming process design system also comprises finite element interface module 111, is exported directly can be supplied to the function that dynaform carries out the input file calculated by finite element interface.Such as, when output displacement loading curve, user can determine the movement velocity (defaulting to 3000mm/s) of clamp as required.
Also it should be noted that, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, and the influence factor of analog computation precision comprises: clamp speed, time step size, cell size, have the numerical parameter of considerable influence to resilience: as unit formula, thick in point number (springback calculation arranges 7 points).Such as, setting about clamp speed: in order to save computing time, clamp speed is exaggerated a lot of times than actual, the fixture speed of amplifying often adds the dynamic effect of stretch wrap forming, can reduce rebound value, but when coordinating little time step, this impact is also not obvious, therefore, section-bending forming process design system default setting clamp speed is 3000mm/s, can also reduce this value according to analog case.About the setting of step computing time, in order to save computing time, often carry out convergent-divergent to time step, when every other factor is constant, strengthening time step can decreasing rebound value.When being shaped calculating, the time step of selection should guarantee the computational accuracy of shaping and resilience, therefore, section-bending forming process design system default setting step computing time is-1.2E-6, and to stretch wrap forming, this value is likely bigger than normal, must adjust, in calculating, manually be adjusted to-5.2E-7.About the setting of unit size, because the section-bending forming process design system of the application will carry out springback calculation, General Requirements an angle of 90 degrees at least divides 4 unit, arc section needs enough unit number along contour direction.
Alternatively, in the present embodiment, the section-bending forming process design system being still applied to LS-DYNA finite element analysis software for the simulation process method of product data is described, such as this system environments is: Windows operating system (WindowsXP, Windows7 etc.), installation method is: click section-bending forming technological design .exe, install according to prompting.Wherein, the operation window of this section-bending forming process design system can comprise following components: title bar window, is used for showing the version of section bar stretch-bending molding process design system, and the information such as current file name; Menu bar, is mainly used to each function items of calling system, carries out choosing of menu or submenu by mouse or shortcut; Toolbar, is made up of a series of small icon, provides command tools, makes command operation more quick; Status bar, shows the implementation status about operational order, and can provide simple help and guide; Graph area, display stretch bending model.This section-bending forming process design system also comprises file operation module 113, and this module is for setting up new file, opening file, preserving file and exit operation.In addition, this section-bending forming process design system also comprises help module 115, the use help document of this software of section-bending forming process design system operating personnel can be supplied to, make user can grasp the associative operation of software fast, the exploitation information of software is also provided.
It should be noted that, the section-bending forming process design system that the simulation process method of the product data of the application is applied to LS-DYNA finite element analysis software can be realized following functions:
In the present embodiment, the data-interface good with image softwares such as CAD application software is provided, possesses pre-process and post-process, analysis and solution function, analytic product geometric model can be treated easily and repair, farthest approach die face; User can be helped to complete the setting of finite element analysis model rapidly, substantially increase the efficiency of pre-treatment; Corresponding with Sheet Metal Forming Technology facilitates easy-to-use analog parameter definition, comprises mould and automatically locates, automatically contacts description, pulling force prediction, mould loading description, boundary condition definition etc.; Can accurately to analyze in bending forming process molding resilience, surface wrinkling by the form such as chart and animation and break, material flowing, variation in thickness, the situation such as Strain Distribution; Finite Element Simulation Analysis is carried out to part stretch bending process, the deformation of section bar in stretch wrap forming can be understood in detail, and calculate mould springback compensation amount, for industrial analysis, Design of Dies and blank prepare the foundation providing science; Can extract arbitrarily simulation analysis data, so that write simulation analysis report.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that can add required general hardware platform by software according to the method for above-described embodiment and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computing machine, server, or the network equipment etc.) perform the method for each embodiment of the present invention.
Embodiment two
According to the present embodiment, additionally provide a kind of simulation process device of product data, the simulation process device of these product data is mainly used in the simulation process method performing the product data that embodiment of the present invention foregoing provides, and does concrete introduction below to the simulation process device of the product data that the present embodiment provides.
Fig. 3 is the structural representation of the simulation process device of a kind of product data according to the embodiment of the present invention two.As shown in Figure 3, this device comprises:
Receiving element 30, for receiving product geometric model.
Simulation analysis unit 32, for carrying out Finite Element Simulation Analysis to the part in product geometric model, wherein, the production process of part comprises stretch bending process, and Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process.
In the present embodiment, when Finite Element Simulation Analysis is carried out to the part in product geometric model, such as, LS-DYNA finite element analysis software can be adopted to carry out Finite Element Simulation Analysis, in the present embodiment, section-bending forming process design system based on LS-DYNA finite element analysis software uses VC6.0 and OpenGL (OpenGraphicsLibrary, open graphic library) a set of stretch bending cae system of language stand-alone development, be mainly used in having assisted stretch bending Trajectory Design, simultaneously with finite element FEM (FiniteElementMethod, finite element analysis) software linking, realize the virtual stretch bending of stretch bending, process optimization and quality control.
First output unit 34, for the result that Output simulation is analyzed.
In the present embodiment, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, particularly, after reception product geometric model, Finite Element Simulation Analysis is carried out to the part in this product geometric model, finally, the result of the part in product geometric model being carried out to Finite Element Simulation Analysis can be exported, by the result of above-mentioned Finite Element Simulation Analysis, the deformation of section bar in stretch wrap forming can be understood in detail, for industrial analysis, Design of Dies and blank prepare the foundation providing science.
The simulation process device of the product data that the present embodiment provides, comprising: receiving element, for receiving product geometric model; Simulation analysis unit, for carrying out Finite Element Simulation Analysis to the part in product geometric model, wherein, the production process of part comprises stretch bending process, and Finite Element Simulation Analysis comprises the simulation analysis to stretch bending process; First output unit, for the result that Output simulation is analyzed, thus solve current merely employing experimental study and economics analysis method, cause the poor reliability of stretch bending process, the inaccurate problem of section-bending forming result, achieve the virtual stretch bending to stretch bending, process optimization and quality control, effectively predict the forming defects that may exist in stretch bending process, and propose corresponding solution, for rational stretch wrap forming technique provides guidance.
Alternatively, in the present embodiment, receiving element comprises: interface module, for by the interface with graphics software, receives the product geometric model that graphics software exports.
Alternatively, in the present embodiment, above-mentioned graphics software comprises: CAD (ComputerAidedDesign, computer-aided equipment) application software, such as, receive product geometric model and by the interface with CAD application software, the product geometric model that CAD application software exports can be received.
Particularly, the product geometric model receiving the output of CAD application software can be section bar parts profile model, this model section bar parts profile data representation.It should be noted that, by the simulating analysis in the embodiment of the present application, the data-interface good with image softwares such as CAD application software is provided, possesses pre-process and post-process, analysis and solution function, analytic product geometric model can be treated easily repair, farthest approach die face.
Particularly, above-mentioned section bar parts profile data file can adopt correlation technique to generate according to used CAD application software by user oneself, about the section bar parts profile data file after generating can be " gdo form section bar parts profile data file " or " igs form section bar parts profile data file ", wherein, " gdo form parts profile data file " is used for describing the contour shape of stretch bending part, file layout is decided at the higher level but not officially announced by stretch bending process design software, this gdo form section bar parts profile data file is a text, content format is as follows: the coordinate of discrete point is described by X and Y order, separate with " space " or " tab " between data, finally must comprise a null.Wherein, " igs form section bar parts profile data file " is a kind of general geometric data file, and the igs formatted file of PSBPD-SF software requirement must comprise the information of parts profile discrete point.
It should be noted that, three-dimensional CAD application software generally all has the function generating discrete point on 2-d contour, after generating discrete point, hides other geometric figure, only discrete point is saved as igs formatted file and export.
Also it should be noted that, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, above-mentioned LS-DYNA finite element analysis software directly can also read in the section bar parts profile data file generated by three-dimensional CAD application software.
Particularly, the product geometric model receiving the output of CAD application software can also be section bar part cross-section model, and this model outline data of section bar part cross-section represents.It should be noted that, this outline data can leave in a text in advance, after cross section maker .exe program reads in cross-sectional profiles data file, xsect can be divided into automatically triangular mesh and (namely obtain cross section gridded data file, cross section gridded data file is a kind of data file of grid configuration, comprise the discretize information in cross section: cell data and node data, in addition, data file ending must comprise a line mould support dot information), then the transverse section of section material data file required for section bar stretch bending process design system is exported.
Also it should be noted that, in the process obtaining part cross-section gridded data file, generally speaking, transverse section of section material (plane) is always made up of two kinds of shape facilities: outline characteristic sum hole characteristic in several.Outline and endoporus can be made up of straight-line segment, arc section and SPL section respectively, and usually, outline is by moving towards counterclockwise, and endoporus is by clockwise trend.Without loss of generality, can suppose that outline and endoporus form by straight-line segment, because any nonlinear type segment of curve all can go to approach with straight-line segment.
Fig. 4 is a kind of optional structural representation based on the section-bending forming process design system of LS-DYNA finite element analysis software according to the embodiment of the present invention two, as shown in Figure 4, the structure of this section-bending forming process design system comprises: part model 401, Trajectory Design module 403, clamp track emulation module 405, technique information module 407, finite element interface module 409, view display control module 411, document management module 413, system main-control module 415.
Alternatively, in the present embodiment, the simulation process device of product data also comprises: adjustment unit, for presetting Parameters of The Parts scope according to the Attribute tuning of different part.
Particularly, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, before Finite Element Simulation Analysis is carried out to the part in product geometric model, also comprise: preset Parameters of The Parts scope according to the Attribute tuning of different part.Such as, in the relevant information (classification of such as material) of material properties page input part material, after input material information, be switched to the attribute of component page, this attribute page provides the determination mode of two profiles material charge length (this partial-length is the effective length of sectional material blank, does not comprise the length accommodating end): surplus mode or given length mode.Select surplus mode, the surplus (default value is 150mm) at two ends, left and right need be provided respectively, if the length of sectional material blank is known, then can select given length mode, in length edit box, input corresponding data (being the effective length of sectional material blank) herein.Such as: material properties page setup title material be SUS301L, elastic modulus is 195000MPa, yield strength is 520MPa, tensile strength is 800MPa; At attribute of component page setup profile length way selection: two ends surplus, the left side: 150mm, the right 150mm; Part profile length, length are set at the attribute of component page (given length mode): 1160mm.
It should be noted that, Trajectory Design can also be completed according to material properties and attribute of component.After the attribute of component page completes, amount of tension property pages can be switched to, in corresponding edit box, input tensile force, prestretched rate, coated process Deformation control coefficient and benefit draw the parameters such as extensibility, now, section-bending forming process design system can complete the automatic calculating of loading track fast.Such as: be next switched to amount of tension property pages, amount of tension prestretching extensibility is set: 1%, coated process Deformation control coefficient 1, selects benefit to draw place, mend and draw extensibility: 0.25%, now, section-bending forming process design system can complete the automatic calculating of loading track fast.After loading track has calculated, loading track display menu and next step the corresponding function of motion simulation menu are activated, and click loading track display menu, can check loading track.
Alternatively, in the present embodiment, simulation analysis unit 32 comprises:
MBM, for setting up finite element model by the attribute of product geometric model and part.
In the present embodiment, the said goods geometric model can comprise: section bar parts profile model and section bar part cross-section model.Still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, this section-bending forming process design system comprises part model 401, Trajectory Design module 403, it should be noted that, when setting up finite element model, section-bending forming process design system in the embodiment of the present application can also provide one group of guide dialog box, user can be helped to complete the foundation of finite element model rapidly, substantially increase the efficiency of pre-treatment.Such as, guide dialog box can set up finite element model by providing following information:
1) reference contours data, are read in.Now, user chooses required section bar parts profile line data (.igs or .gdo formatted file), click open button, result just can be presented at reference contours data and to read in and on graphic display interface, such as, left side list outline on data, the outline line figure that right side display is corresponding.
2), cross-section file is read in.Now, user's choosing is corresponding section bar part section data (.sec formatted file) then, click open button, read in section bar cross-section data, next the corresponding die location in cross section is adjusted as required, by clicking drop-down list box (such as: click rotary knob, geometric center C button or mould summit B button) operate, adjust cross section opposite position, next be switched to reference contours line position and clamp position of center line to set a property page, at this moment according to actual conditions, relevant data can be set (such as: click mould summit B button, reference contours point R, geometric center C button or clamp central point J button are arranged), enter key more new images display is pressed after input data, can see after being provided with that section bar parts profile line appears at graph area, namely parts information reads in result and is presented at graph area.
Now, the foundation and the parts information that complete finite element model have read in.
Alternatively, in the present embodiment, simulation analysis unit 32 also comprises:
, on preset direction and/or desired guiding trajectory, there is deformation for controlling finite element model in control module.
In the present embodiment, can after completing simulation track according to material properties and attribute of component and presetting, control finite element model, on preset direction and/or desired guiding trajectory, deformation occurs, it should be noted that, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, this section-bending forming process design system also comprises clamp track emulation module 405, the motion simulation menu of above-mentioned section-bending forming process design system additionally provides the one group of operation controlling clamp motion simulation, comprise and start emulation, stop emulation, get back to original state, direct arrival end-state, single step is advanced, single step retrogressing etc.Such as, click and start simulation operations button, just can realize controlling the operation that deformation occurs finite element model on preset direction and/or desired guiding trajectory.
Alternatively, in the present embodiment, simulation analysis unit 32 also comprises:
Monitoring modular, in the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring
In the present embodiment, in the process of finite element model generation deformation, the change of the Parameters of The Parts corresponding to attribute of monitoring part, if Parameters of The Parts exceeds default Parameters of The Parts scope, then controls finite element model and stops deformation occurring.Particularly, in the process of finite element model generation deformation, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, this simulating analysis additionally provides subsidiary function, this function comprises: technique information, the functions such as trajectory calculation parameter adjustment, namely this section-bending forming process design system comprises technique information module 407, such as, suitable adjustment can be made to the following parameter in technique information, technique information comprises: part cornerite deg, profile size mm (blank effective length, left length, right length), prestretching distortion (amount of tension mm, breaking elongation %, tensile force ton), draw packet shaping (amount of tension mm, breaking elongation %, tensile force ton), benefit draws distortion (amount of tension mm, breaking elongation %, tensile force ton), friction factor (0-0.2), coated angle step deg etc.In the process of finite element model generation deformation, exceeding default Parameters of The Parts scope when monitoring Parameters of The Parts, trajectory parameters can be changed by adjusting above-mentioned technique information, solving the production practical problems in shape bending forming process surely.
Alternatively, in the present embodiment, simulation analysis unit also 32 to comprise:
Acquisition module, for gather finite element model stop occur deformation time model and model parameter, obtain the result of simulation analysis according to model and model parameter.
In the present embodiment, acquisition module, for gather finite element model stop occur deformation time model and model parameter, obtain the result of simulation analysis according to model and model parameter.In addition, can also carry out treating stretch bending part stretch bending resilience numerical simulation, analyze the springback capacity of shaping rear part, and modify to meet production requirement to springback capacity.It should be noted that, during springback calculation, select 3 nodes not on same straight line, retrain 6 translational degree of freedom (dynaform-pc default to 1 joint constraint 1,2,3DOF, 2 joint constraints 1,2DOF, 3 joint constraint 1 degree of freedom.1,2,3 x, y, z direction is represented respectively), after adjustment, 2 joint constraints 2,3DOF, 3 joint constraint 3DOFs.Such as, when springback calculation constraint is revised, the TC item of 2 nodes is the TC item of 4,3 nodes is 1, then after revising, the TC item of 2 nodes is the TC item of 5,3 nodes is 3.
It should be noted that, Finite Element Simulation Analysis is carried out to part stretch bending process, the deformation of section bar in stretch wrap forming can be understood in detail, and calculate mould springback compensation amount, for industrial analysis, Design of Dies and blank prepare the foundation providing science.
Alternatively, in the present embodiment, the first output unit 34 comprises: display module, for following one of at least by predetermined way display: tangential stress, the thinning rate of tangential strain, profile flows, and straight-line segment arches upward, cross section distortion, resilience displacement, residual stress distribution.
Particularly, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, first output unit comprises: display module, for following one of at least by predetermined way display: tangential stress, tangential strain (in such as face principal strain), thinning rate, profile flows, straight-line segment arches upward (such as intermediate symmetry face arch upward distance or middle straight line segment encircle outward), cross section distortion (such as cross section distortion and Z-direction flow), resilience displacement (such as normal direction resilience displacement), residual stress distribution.
Alternatively, in the present embodiment, above-mentioned predetermined way comprise following one of at least: chart, animation.
Particularly, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, the form such as chart and/or animation can be passed through, accurately analyze Form springback in stretch wrap forming process, surface wrinkling and breaking, material flows, variation in thickness, the situations such as Strain Distribution, in addition, this section-bending forming process design system also comprises view display control module 411, by associative operation, view display control module is controlled to figure display effect, comprise projecting direction to select, display mode selects (illumination or line frame graph), full screen display, local scale, rotate, translations etc. show with two dimension and/or three-dimensional picture environment.
Alternatively, in the present embodiment, the simulation process device of product data also comprises: the second output unit, reports for the result Output simulation according to simulation analysis.
In the present embodiment, after the result that Output simulation is analyzed, the simulation process device of the said goods data also comprises: the second output unit, report for the result Output simulation according to simulation analysis, such as, data in stretch bending process are gathered, analyze, classification etc., the data such as technique information, loading curve, forming quality are exported with the form of simulation report, for later processing provides reference.
It should be noted that, this section-bending forming process design system also comprises finite element interface module 409, is exported directly can be supplied to the function that dynaform carries out the input file calculated by finite element interface.Such as, when output displacement loading curve, user can determine the movement velocity (defaulting to 3000mm/s) of clamp as required.
Also it should be noted that, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, the influence factor of analog computation precision comprises: clamp speed, time step size, cell size, have the numerical parameter of considerable influence to resilience: as unit formula, thick in point number (springback calculation arranges 7 points).Such as, setting about clamp speed: in order to save computing time, clamp speed is exaggerated a lot of times than actual, the fixture speed of amplifying often adds the dynamic effect of stretch wrap forming, can reduce rebound value, but when coordinating little time step, this impact is also not obvious, therefore, section-bending forming process design system default setting clamp speed is 3000mm/s, can also reduce this value according to analog case.About the setting of step computing time, in order to save computing time, often carry out convergent-divergent to time step, when every other factor is constant, strengthening time step can decreasing rebound value.When being shaped calculating, the time step of selection should guarantee the computational accuracy of shaping and resilience, therefore, section-bending forming process design system default setting step computing time is-1.2E-6, and to stretch wrap forming, this value is likely bigger than normal, must adjust, in calculating, manually be adjusted to-5.2E-7.About the setting of unit size, because the section-bending forming process design system of the application will carry out springback calculation, General Requirements an angle of 90 degrees at least divides 4 unit, arc section needs enough unit number along contour direction.
Alternatively, in the present embodiment, still be described for the section-bending forming process design system of the simulation process application of installation of product data in LS-DYNA finite element analysis software, this system environments is: Windows operating system (WindowsXP, Windows7 etc.), installation method is: click section-bending forming technological design .exe, install according to prompting.Wherein, the operation window of this section-bending forming process design system can comprise following components: title bar window, is used for showing the version of section bar stretch-bending molding process design system, and the information such as current file name; Menu bar, is mainly used to each function items of calling system, carries out choosing of menu or submenu by mouse or shortcut; Toolbar, is made up of a series of small icon, provides command tools, makes command operation more quick; Status bar, shows the implementation status about operational order, and can provide simple help and guide; Graph area, display stretch bending model.This section-bending forming process design system also comprises document management module 413, and this module is for setting up new file, opening file, preserving file and exit operation.In addition, this section-bending forming process design system also comprises system main-control module 415, this system main-control module can be supplied to the use help document of this software of section-bending forming process design system operating personnel, make user can grasp the associative operation of software fast, the exploitation information of software is also provided.
It should be noted that, the simulation process application of installation of the product data of the application can be realized following functions in the section-bending forming process design system of LS-DYNA finite element analysis software:
In the present embodiment, the data-interface good with image softwares such as CAD application software is provided, possesses pre-process and post-process, analysis and solution function, analytic product geometric model can be treated easily and repair, farthest approach die face; User can be helped to complete the setting of finite element analysis model rapidly, substantially increase the efficiency of pre-treatment; Corresponding with Sheet Metal Forming Technology facilitates easy-to-use analog parameter definition, comprises mould and automatically locates, automatically contacts description, pulling force prediction, mould loading description, boundary condition definition etc.; Can accurately to analyze in bending forming process molding resilience, surface wrinkling by the form such as chart and animation and break, material flowing, variation in thickness, the situation such as Strain Distribution; Finite Element Simulation Analysis is carried out to part stretch bending process, the deformation of section bar in stretch wrap forming can be understood in detail, and calculate mould springback compensation amount, for industrial analysis, Design of Dies and blank prepare the foundation providing science; Can extract arbitrarily simulation analysis data, so that write simulation analysis report.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
In several embodiments that the application provides, should be understood that, disclosed technology contents, the mode by other realizes.Wherein, device embodiment described above is only schematic, the such as division of described unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of unit or module or communication connection can be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple unit.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprises all or part of step of some instructions in order to make a computer equipment (can be personal computer, server or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, ROM (read-only memory) (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a simulation process method for product data, is characterized in that, comprising:
Receive product geometric model;
Carry out Finite Element Simulation Analysis to the part in described product geometric model, wherein, the production process of described part comprises stretch bending process, and described Finite Element Simulation Analysis comprises the simulation analysis to described stretch bending process;
Export the result of described simulation analysis.
2. method according to claim 1, is characterized in that, receives described product geometric model and comprises:
By the interface with graphics software, receive the described product geometric model that described graphics software exports.
3. method according to claim 2, is characterized in that, described graphics software comprises: CAD application software.
4. method according to claim 1, is characterized in that, before carrying out Finite Element Simulation Analysis to the part in described product geometric model, described method also comprises:
Parameters of The Parts scope is preset according to the Attribute tuning of different part.
5. method according to claim 1, is characterized in that, carries out Finite Element Simulation Analysis comprise the part in described product geometric model:
Finite element model is set up by the attribute of described product geometric model and described part;
Control described finite element model, on preset direction and/or desired guiding trajectory, deformation occurs;
Occur at described finite element model in the process of described deformation, monitor the change of Parameters of The Parts corresponding to the attribute of described part, if described Parameters of The Parts exceeds default Parameters of The Parts scope, then control described finite element model and stop described deformation occurs;
Gather described finite element model stop occur described deformation time model and model parameter, obtain the result of described simulation analysis according to described model and model parameter.
6. method according to claim 1, is characterized in that, the result exporting described simulation analysis comprises: following one of at least by predetermined way display: tangential stress, the thinning rate of tangential strain, profile flows, and straight-line segment arches upward, cross section distortion, resilience displacement, residual stress distribution.
7. method according to claim 6, is characterized in that, described predetermined way comprise following one of at least: chart, animation.
8. method according to claim 1, is characterized in that, after the result exporting described simulation analysis, described method also comprises: the result Output simulation according to described simulation analysis is reported.
9. a simulation process device for product data, is characterized in that, comprising:
Receiving element, for receiving product geometric model;
Simulation analysis unit, for carrying out Finite Element Simulation Analysis to the part in described product geometric model, wherein, the production process of described part comprises stretch bending process, and described Finite Element Simulation Analysis comprises the simulation analysis to described stretch bending process;
First output unit, for exporting the result of described simulation analysis.
10. device according to claim 9, is characterized in that, described receiving element comprises:
Interface module, for by the interface with graphics software, receives the described product geometric model that described graphics software exports.
11. devices according to claim 10, is characterized in that, described graphics software comprises: CAD application software.
12. devices according to claim 9, is characterized in that, described simulation process device also comprises:
Adjustment unit, for presetting Parameters of The Parts scope according to the Attribute tuning of different part.
13. devices according to claim 9, is characterized in that, described simulation analysis unit comprises:
MBM, for setting up finite element model by the attribute of described product geometric model and described part;
, on preset direction and/or desired guiding trajectory, there is deformation for controlling described finite element model in control module;
Monitoring modular, for occurring in the process of described deformation at described finite element model, monitor the change of Parameters of The Parts corresponding to the attribute of described part, if described Parameters of The Parts exceeds default Parameters of The Parts scope, then control described finite element model and stop described deformation occurs;
Acquisition module, for gather described finite element model stop occur described deformation time model and model parameter, obtain the result of described simulation analysis according to described model and model parameter.
14. devices according to claim 9, is characterized in that, described first output unit comprises: display module, for following one of at least by predetermined way display: molding resilience, surface wrinkling and break, the flowing of variation in thickness, material, Strain Distribution.
15. devices according to claim 14, is characterized in that, described predetermined way comprise following one of at least: chart, animation.
16. devices according to claim 9, is characterized in that, described simulation process device also comprises: the second output unit, report for the result Output simulation according to described simulation analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510520456.5A CN105183956A (en) | 2015-08-21 | 2015-08-21 | Simulation processing method and simulation processing apparatus for product data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510520456.5A CN105183956A (en) | 2015-08-21 | 2015-08-21 | Simulation processing method and simulation processing apparatus for product data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105183956A true CN105183956A (en) | 2015-12-23 |
Family
ID=54906035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510520456.5A Pending CN105183956A (en) | 2015-08-21 | 2015-08-21 | Simulation processing method and simulation processing apparatus for product data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105183956A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106503342A (en) * | 2016-10-31 | 2017-03-15 | 马钢(集团)控股有限公司 | Resultant metal part light weight method |
| CN108089457A (en) * | 2017-11-29 | 2018-05-29 | 北京航空航天大学 | A kind of process quality control method based on online finite element simulation |
| CN110955968A (en) * | 2019-11-26 | 2020-04-03 | 江西江铃集团新能源汽车有限公司 | Method and system for compensating welding deformation of automobile bent section |
| CN111046602A (en) * | 2019-11-27 | 2020-04-21 | 中国第一汽车股份有限公司 | Automobile windshield collision simulation method |
| CN111324978A (en) * | 2018-12-14 | 2020-06-23 | 波音公司 | Design structure product |
| CN113112593A (en) * | 2021-04-20 | 2021-07-13 | 无锡市华德尔自动化控制技术有限公司 | Application of 3D (three-dimensional) graph on numerical control system of bending machine |
| CN117371296A (en) * | 2023-12-07 | 2024-01-09 | 中铝材料应用研究院有限公司 | Technological method for stretch bending forming of section bar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005060557A1 (en) * | 2005-10-17 | 2007-04-19 | Daimlerchrysler Ag | Automatic simulation of mechanical joints between two components uses a computer finite element analysis process |
| CN101261653A (en) * | 2008-04-17 | 2008-09-10 | 上海交通大学 | Simulation system for spot welding invalidity number value |
| CN102968524A (en) * | 2012-11-06 | 2013-03-13 | 西北工业大学 | Modeling method for two-dimensional variable-curvature process model of section bar part |
| CN103191958A (en) * | 2013-04-08 | 2013-07-10 | 郑州轻工业学院 | Optical detection method for plate material forming and springback |
| CN104281725A (en) * | 2013-07-13 | 2015-01-14 | 西安嘉业航空科技有限公司 | Three-dimensional multi-curvature part bending method |
-
2015
- 2015-08-21 CN CN201510520456.5A patent/CN105183956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005060557A1 (en) * | 2005-10-17 | 2007-04-19 | Daimlerchrysler Ag | Automatic simulation of mechanical joints between two components uses a computer finite element analysis process |
| CN101261653A (en) * | 2008-04-17 | 2008-09-10 | 上海交通大学 | Simulation system for spot welding invalidity number value |
| CN102968524A (en) * | 2012-11-06 | 2013-03-13 | 西北工业大学 | Modeling method for two-dimensional variable-curvature process model of section bar part |
| CN103191958A (en) * | 2013-04-08 | 2013-07-10 | 郑州轻工业学院 | Optical detection method for plate material forming and springback |
| CN104281725A (en) * | 2013-07-13 | 2015-01-14 | 西安嘉业航空科技有限公司 | Three-dimensional multi-curvature part bending method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106503342A (en) * | 2016-10-31 | 2017-03-15 | 马钢(集团)控股有限公司 | Resultant metal part light weight method |
| CN108089457A (en) * | 2017-11-29 | 2018-05-29 | 北京航空航天大学 | A kind of process quality control method based on online finite element simulation |
| CN111324978A (en) * | 2018-12-14 | 2020-06-23 | 波音公司 | Design structure product |
| CN110955968A (en) * | 2019-11-26 | 2020-04-03 | 江西江铃集团新能源汽车有限公司 | Method and system for compensating welding deformation of automobile bent section |
| CN111046602A (en) * | 2019-11-27 | 2020-04-21 | 中国第一汽车股份有限公司 | Automobile windshield collision simulation method |
| CN113112593A (en) * | 2021-04-20 | 2021-07-13 | 无锡市华德尔自动化控制技术有限公司 | Application of 3D (three-dimensional) graph on numerical control system of bending machine |
| CN117371296A (en) * | 2023-12-07 | 2024-01-09 | 中铝材料应用研究院有限公司 | Technological method for stretch bending forming of section bar |
| CN117371296B (en) * | 2023-12-07 | 2024-03-01 | 中铝材料应用研究院有限公司 | Technological method for stretch bending forming of section bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105183956A (en) | Simulation processing method and simulation processing apparatus for product data | |
| Multiphysics | Introduction to comsol multiphysics® | |
| JP2020514929A (en) | Method and system for quick custom design of smart factory | |
| CN104252403B (en) | For executing the real-time feedback control of tool operation operation in an assembling process | |
| Choi et al. | Application of virtual assembly tools for improving product design | |
| CN104008256B (en) | A kind of engineering practice method of the cable maintenance emulation based on DELMIA | |
| CN104217063A (en) | Simulation design method for rolling hole patterns of steel rail | |
| CN107180125A (en) | Predict the analysis method of concrete dam body crack extension | |
| CN105159754A (en) | On-line simulation method and device based on intelligent business cloud platform | |
| Peng et al. | Application and evaluation of VR-based CAPP system | |
| CN102289530A (en) | Universal girder parametric computer modelling system of crane | |
| Lin et al. | Development of an automated structural design system for progressive dies | |
| CN103810310A (en) | Parameterization determination method for pitch foaming module equipment oriented to bituminous mixing plant | |
| CN103870624B (en) | Simulation analysis template for hung crossbeam | |
| CN100373386C (en) | Real-time drawing and confirming method for workpiece pattern of bender digital control system | |
| CN106991260B (en) | CAM system of externally-hung type flat longitudinal beam punching production line and construction method | |
| US8055488B2 (en) | Support program and design support method | |
| JP4803447B2 (en) | CAD system and program implemented in this system | |
| CN108153977A (en) | A kind of radar waveguide parameterization design method based on NX | |
| Bocevska et al. | An example of application design using solidworks application programming interface | |
| Szabo et al. | Finite element analysis in professional practice | |
| CN103455653A (en) | Systems and methods of creating computerized model for a deep draw manufacturing simulation of a sheet metal part | |
| CN110377934B (en) | Design calculation method and device for marine electromechanical product | |
| Malik | Framework to model virtual factories: A digital twin view | |
| CN110134063A (en) | The automatic control device and method of workpiece shaping can be achieved |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |
|
| RJ01 | Rejection of invention patent application after publication |