CN103106313B - Roll consequent order reconstructing method - Google Patents
Roll consequent order reconstructing method Download PDFInfo
- Publication number
- CN103106313B CN103106313B CN201310075312.4A CN201310075312A CN103106313B CN 103106313 B CN103106313 B CN 103106313B CN 201310075312 A CN201310075312 A CN 201310075312A CN 103106313 B CN103106313 B CN 103106313B
- Authority
- CN
- China
- Prior art keywords
- file
- node
- consequent
- value
- model
- 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.)
- Active
Links
Abstract
Open one rolls consequent order reconstructing method, comprising: utilize pre-process and post-process software obtain the text K file of blank model and roll the structure K file of consequent model; Open the text K file of blank model, by represent after the numbering of node the X of coordinate, Y value with rolling the X of numbering of corresponding node of structure K file of consequent model, Y value replaces, Z value remains unchanged; All nodes is ascending according to Z value, Y value is ascending, X value is ascending order arrangement, renumbers all nodes with the order increasing 1, and the old numbering of memory node and new numbering; The numbering of the unit configuration node in the text K file of blank model is replaced; The text K of the blank model after substituted for the numbering of node and X, Y-coordinate value is saved File As and rolls consequent model reconstruction file.
Description
Technical field
The present invention relates to rolling simulation analysis, more particularly, the present invention relates to a kind of method that the grid node rolling consequent is reconstructed.
Background technology
In System on Rolling Steel, flow of metal passage is many, metal strain is large.Realize steel billet almost can not complete to the disposable simulation analysis of finished product, to be metal type steel billet reach 20 times even higher to the ratio of compression of finished product to its main cause usually, and finished form and steel billet shape differ greatly simultaneously.In rolling pony-roughing pass, not only steel billet mesh distortion is very serious, and rolled piece may distortion, bending very serious in the longitudinal direction, makes rolled piece cannot enter lower a time and is rolled.Meanwhile, length of rolled piece is multiplied, and substantially increases the unnecessary simulation analysis time, impact analysis efficiency.
On the other hand, the method for grid reconstruction is more complicated.Directly stereoscopic grid reconstruct can be carried out, such as 4 node, 4 body units to after the rolled piece of certain cell cube.But in order to improve the precision of rolling simulation analysis, rolled piece body generally adopts 8 node, 6 body units to carry out grid enable, adopt the entity that 8 node, 6 body units build, existing software cannot be reconstructed with volume mesh reconstructing method.Therefore, the method can not be adopted to the grid reconstruction rolling consequent.
Here, the object of rolling consequent sequence is in order to operator regularly can observe each nodal displacement, temperature, the isoparametric change of stress intuitively in model K file, is convenient to K file simultaneously and can be applied in program secondary development.The another one object of rolling consequent sequence be this roll consequent follow-up continuation rolling produce distortion bending, reverse after directly can cut sheet node layer and carry out model reconstruction.As can be seen here, the grid node rolling consequent is reconstructed is very important.
Summary of the invention
To be partly articulated the other aspect of the present invention and/or advantage in the following description, by describing, it can become clearly, or can understand by implementing the present invention.
An aspect of of the present present invention be solve rolled piece bend, distortion, the oversize problem that cannot enter upper and lower passage of rolled piece.
Another aspect of the present invention is that the grid node to rolling consequent sorts.
The invention provides one and roll consequent order reconstructing method, comprise the following steps: (a) utilizes pre-process and post-process software obtain the text K file of blank model and roll the structure K file of consequent model, b () opens the text K file of blank model, by represent after the numbering of node the X of coordinate, Y value with rolling the X of numbering of corresponding node of structure K file of consequent model, Y value replaces, Z value remains unchanged, c all nodes are divided into multiple set according to the order that Z value is ascending by (), one or more nodes in each set are divided into multiple subclass according to the order that Y value is ascending, one or more nodes in each subclass are arranged according to the order that X value is ascending, the node that X value in the subclass that Y value from the set that Z value is minimum is minimum is minimum, the node that X value in the subclass that Y value in the set that Z value is maximum is maximum is maximum, with the order increasing 1, all nodes are renumberd, and the old numbering of memory node and new numbering, d () numbering to the unit configuration node in the text K file of blank model is replaced, e the text K of the blank model after substituted for the numbering of node and X, Y-coordinate value saves File As and rolls consequent model reconstruction file by ().
In addition, in step (a), by blank model is imported the text K file that LS-PrePost software exports blank model, and by simulation figure file is imported LS-PrePost software, be played to the final step of simulation calculating, conceal all models rolling consequent part, thus the structure K file of consequent model is rolled in final output.
In addition, in step (d), the new numbering of the node obtained in step (c) is used to replace the numbering of the unit configuration node in the text K file of blank model.
In addition, described unit is the rectangular parallelepiped unit be made up of 8 nodes.
In addition, consequent order reconstructing method is rolled described in further comprising the steps of: utilize pre-process and post-process software to obtain the temperature K file and the stress K file that roll consequent model.
In addition, described roll consequent order reconstructing method further comprising the steps of: open the temperature K file and stress K file that roll consequent model, the new numbering of the node obtained in step (c) is used to replace the numbering of the corresponding node in the temperature K file and stress K file rolling consequent model, and the temperature K file that is replaced of the numbering of preserving node and stress K file.
The described consequent order reconstructing method that rolls, without the need to carrying out pre-service to data, can reduce time loss, portable strong, and the efficiency of sequence significantly improves.
Accompanying drawing explanation
By the description carried out embodiment below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to understand, wherein:
Fig. 1 is the diagram that lamella node ID and nodes distribution are shown;
Fig. 2 illustrates the diagram forming and roll the Parameter File (K file) of consequent entity;
Fig. 3 illustrates the process flow diagram to the method that the grid node rolling consequent sorts according to the embodiment of the present invention.
Embodiment
Be described in detail the embodiment of the present invention now, its sample table shows in the accompanying drawings, and wherein, identical label represents same parts all the time.Be described to explain the present invention to embodiment below with reference to the accompanying drawings.
The method of a kind of grid reconstruction that the present invention need solve is: cut sheet layer unit rolling on consequent, each sheet layer unit is formed by two-layer node, chooses a wherein node layer and can be built into new rolled parts by certain topological relation.If the node lack of alignment on selected a certain lamella, then this sheet node layer cannot be copied adult in K file, because K file interior joint increases progressively 1 arrangement by natural number from 1, if each lamella interior joint is not in strict accordance with increasing progressively 1 arrangement, then adult cannot be copied.Following Fig. 1 and Fig. 2 shows this situation.
As can be seen from Figure 1, the sheet node layer that the Meshing Method provided by software obtains, on same layer, node ID is not the order arrangement by increasing progressively 1, but very at random.The total nodes of lamella only 872, but the numbering of node is from 969-44447, nearly 43479 numberings.If copied by lamella by the K file in Fig. 2, then cannot the lamella of a recursive copying 1-872 node, also just cannot generate one individual.Obviously, if if the node of the numbering 1-872 of node is not on same layer, then cannot carries out copy sequence stretching to this layer and become a rolled piece model based on this lamella.
Therefore, the blank be drawn into the automatic grid division of ANSYS software, the numbering of the node on every one deck is chaotic, does not have corresponding relation with the number of node.After blank rolling, the topological relation of node is constant.Because choosing of lamella is arbitrary, carry out copying adult if the node rolling consequent lamella will be cut, must resequence to all node layers of rolled parts.
In fact, the stress and strain model of blank strictly regularly arranges in Z-direction (i.e. length direction), and on such as ground floor, the Z coordinate of all nodes is all 0.Meanwhile, if blank every node layer when stress and strain model strictly arranges in order, then every node layer arrangement of rolling consequent is also carried out, in order because its topological relation is constant.Therefore, when doing full rolling process simulation analysis, generally will to the leading grid node sequence of blank.But there will be the erroneous judgement of " consider that rolling pass is few, to roll the tapping of rear material straight; disposablely can roll into finished product " and grid node sequence do not carried out to blank, just find when being rolled down to certain passage that rolled piece reverses, flexural deformation seriously cannot enter lower passes and must cut roll after certain lamella of expecting be reconstructed.Now, if returned to, blank grid node is sorted, then repeat rolling simulation analysis, will workload be increased considerably.
The present invention takes following method to carry out the reconstruct of the grid node rolling consequent.First, the principle that when utilizing simulation analysis, blank node topology relation is constant, by the X of node each on blank, Y-coordinate with rolling the X of consequent corresponding node, Y-coordinate replaces, and Z coordinate remains unchanged.Then, by blank same layer node Z coordinate equal principle, blank grid node is sorted.Next, find out the corresponding relation of node before and after sequence, to substituted for X, the blank K file of Y-coordinate carries out Cell Reconstruction.Finally, the parameters such as the temperature of rolling on consequent node, stress can be reloaded.
Reconstruct of rolling the grid node of consequent of the present invention is described in detail referring to Fig. 3.
Fig. 3 illustrates the process flow diagram to the method that the grid node rolling consequent sorts according to the embodiment of the present invention.
In operation 301, pre-process and post-process software is utilized to obtain the text K file of blank model and roll the structure K file of consequent model.Specifically, by blank model is imported the text K file that LS-PrePost software exports blank model, and by simulation figure file is imported LS-PrePost software, be played to the final step of simulation calculating, conceal all models rolling consequent part, thus the structure K file of consequent model is rolled in final output.Here, LS-PrePost is the senior finite element pre-process and post-process software that a set of LS-DYNA of aiming at (general explicit dynamic analysis program) develops.On the other hand, can to roll the identical mode of the structure K file of consequent model and obtain the temperature K file that rolls consequent model and stress K file etc. with obtaining.
In operation 302, open the text K file of blank model, by represent after the numbering of node the X of coordinate, Y value with rolling the X of numbering of corresponding node of structure K file of consequent model, Y value replaces, and Z value remains unchanged.
In operation 303, all nodes are divided into multiple set according to the order that Z value is ascending, one or more nodes in each set are divided into multiple subclass according to the order that Y value is ascending, one or more nodes in each subclass are arranged according to the order that X value is ascending, the node that X value in the subclass that Y value from the set that Z value is minimum is minimum is minimum, the node that X value in the subclass that Y value in the set that Z value is maximum is maximum is maximum, with the order increasing 1, all nodes are renumberd, and the old numbering of memory node and new numbering.
In operation 304, the numbering of the unit configuration node in the text K file of blank model is replaced.Blank model is made up of plurality of layers, and every one deck is made up of a lot of unit, and each unit is made up of a lot of node again.In the present invention, blank model adopts 8 node, 6 body units, that is, each unit is made up of the unit of a rectangular parallelepiped 8 nodes, these 8 Node distribution on two-layer, every layer of each four node.In operation 304, the new numbering of the node in operation 303 is used to replace the numbering of each node of composition unit.
In operation 305, the text K of the blank model after substituted for the numbering of node and X, Y-coordinate value is saved File As and rolls consequent model reconstruction file.Like this, the reconstruct of rolling the grid node of consequent completes.
Selectively, in operation 306, open the temperature K file and stress K file that roll consequent model, use the new numbering of the node in operation 303 to replace the numbering of the corresponding node in temperature K file and stress K file, and the temperature K file that is replaced of the numbering of preserving node and stress K file.Like this, the loadeds such as the temperature of consequent, stress are rolled.
Following distinguishing feature is had to the method that the grid node rolling consequent sorts relative to classic method according to the embodiment of the present invention:
The first, the new method of employing, without the need to carrying out pre-service to data, reduces time loss.Classic method sorts to data and mainly utilizes following two kinds of instruments: one is utilize excel spreadsheet lattice, and two is utilize database.Both the remarkable advantage efficiency that sorts exactly is high, but shortcoming is more outstanding.Such as, the primary prerequisite utilizing above-mentioned instrument to carry out sorting must be first by the data importing in K file wherein, and K file is text data, and size is generally 5 ~ 10M, and capacity can reach 5 ~ 150,000 row.So, for a large amount of data copy, work of writing Excel formula, write database table, read again etc. not only need artificial participate in and also time loss very big.In contrast, new method directly reads the internal memory of K file data to computing machine, thus does not need to copy K file data to Excel form, does not also need to import to this process of database, therefore saves mass data pretreatment time.
The second, new method does not rely on Excel form and database software, directly processes K file, portable strong, facilitates the use of engineering staff.
3rd, the efficiency of new method sequence is better than Excel and database.Utilize Excel to need human-edited Excel formula to coordinate data sequence, thus reduce sequence efficiency.And new method is similar to database kernel ordering principle but more very one raise, reason is that new method decreases and the call duration time of database software and digital independent write time, but directly completes all working at calculator memory.
Although shown and described some embodiments, it should be appreciated by those skilled in the art that without departing from the principles and spirit of the present invention, can modify to these embodiments, scope of the present invention is by claim and equivalents thereof.
Claims (5)
1. roll a consequent order reconstructing method, it is characterized in that, comprise the following steps:
A () utilizes pre-process and post-process software obtain the text K file of blank model and roll the structure K file of consequent model;
B () opens the text K file of blank model, by represent after the numbering of node the X of coordinate, Y value with rolling the X of numbering of corresponding node of structure K file of consequent model, Y value replaces, Z value remains unchanged;
C all nodes of blank model are divided into multiple set according to the order that Z value is ascending by (), one or more nodes in each set are divided into multiple subclass according to the order that Y value is ascending, one or more nodes in each subclass are arranged according to the order that X value is ascending, the node that X value in the subclass that Y value from the set that Z value is minimum is minimum is minimum, the node that X value in the subclass that Y value in the set that Z value is maximum is maximum is maximum, with the order increasing 1, all nodes are renumberd, and the old numbering of memory node and new numbering,
D () uses the new numbering of the node obtained in step (c) to replace the numbering of the unit configuration node in the text K file of blank model;
E the text K of the blank model after substituted for the numbering of node and X, Y-coordinate value saves File As and rolls consequent model reconstruction file by ().
2. according to claim 1 roll consequent order reconstructing method, it is characterized in that, in step (a), by blank model is imported the text K file that LS-PrePost software exports blank model, and by simulation figure file is imported LS-PrePost software, be played to the final step of simulation calculating, conceal all models rolling consequent part, thus the structure K file of consequent model is rolled in final output.
3. according to claim 1 roll consequent order reconstructing method, it is characterized in that, described unit is the rectangular parallelepiped unit be made up of 8 nodes.
4. according to claim 1ly roll consequent order reconstructing method, it is characterized in that, further comprising the steps of: to utilize pre-process and post-process software to obtain and roll temperature K file and the stress K file of consequent model.
5. according to claim 4 roll consequent order reconstructing method, it is characterized in that, further comprising the steps of: to open the temperature K file and stress K file that roll consequent model, the new numbering of the node obtained in step (c) is used to replace the numbering of the corresponding node in the temperature K file and stress K file rolling consequent model, and the temperature K file that is replaced of the numbering of preserving node and stress K file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075312.4A CN103106313B (en) | 2013-03-08 | 2013-03-08 | Roll consequent order reconstructing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075312.4A CN103106313B (en) | 2013-03-08 | 2013-03-08 | Roll consequent order reconstructing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103106313A CN103106313A (en) | 2013-05-15 |
| CN103106313B true CN103106313B (en) | 2015-09-30 |
Family
ID=48314167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310075312.4A Active CN103106313B (en) | 2013-03-08 | 2013-03-08 | Roll consequent order reconstructing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103106313B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310077B (en) * | 2013-07-08 | 2016-08-31 | 攀钢集团攀枝花钢钒有限公司 | Roll the modeling method of consequent sequence stretching adult |
| CN103324809B (en) * | 2013-07-08 | 2016-03-23 | 攀钢集团攀枝花钢钒有限公司 | Obtain and roll the node of the distortion lamella of consequent and the method for outline node |
| CN104217082B (en) * | 2014-09-12 | 2017-11-24 | 攀钢集团攀枝花钢钒有限公司 | Grid reconstruction method based on LS PREPOST |
| CN108804833A (en) * | 2018-06-14 | 2018-11-13 | 攀钢集团攀枝花钢钒有限公司 | The long full rolling process Intelligent Simulation Software system architecture design method of material |
| CN115470598B (en) * | 2022-11-03 | 2023-03-24 | 北京科技大学 | Multithreading-based three-dimensional rolled piece model block data rapid inheritance method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221416A (en) * | 2007-12-28 | 2008-07-16 | 东北大学 | Finite element method for on-line board temperature calculation in course of hot rolling |
| CN101872373A (en) * | 2010-05-14 | 2010-10-27 | 南京航空航天大学 | Wing-tip grid reconstruction method of iced three-dimensional wing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7027048B2 (en) * | 2002-05-31 | 2006-04-11 | Ugs Corp. | Computerized deformation analyzer |
-
2013
- 2013-03-08 CN CN201310075312.4A patent/CN103106313B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221416A (en) * | 2007-12-28 | 2008-07-16 | 东北大学 | Finite element method for on-line board temperature calculation in course of hot rolling |
| CN101872373A (en) * | 2010-05-14 | 2010-10-27 | 南京航空航天大学 | Wing-tip grid reconstruction method of iced three-dimensional wing |
Non-Patent Citations (1)
| Title |
|---|
| 基于网格重构的H型钢热轧过程的数值分析;贺庆强等;《计算机仿真》;20070228;第24卷(第02期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103106313A (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103106313B (en) | Roll consequent order reconstructing method | |
| CN110765523A (en) | BIM technology-based rapid construction method for deep foundation pit support structure | |
| CN104077446B (en) | The method and system of two-dimentional electrical construction document are extracted from digital three-dimemsional model | |
| CN106777723A (en) | A kind of method of automatic drawing principle figure | |
| CN112327745B (en) | PLC program design method based on testable digital twin body | |
| CN103729694A (en) | Method for solving flexible job-shop scheduling problem with improved GA based on polychromatic set hierarchical structure | |
| CN103064991A (en) | Mass data clustering method | |
| CN105095599A (en) | DWG format drawing automatic generation method | |
| CN103258300A (en) | Method for designing cable bridge in cable passage of thermal power plant | |
| CN112487589B (en) | Data conversion method based on pipeline three-dimensional model | |
| CN109684517A (en) | A kind of historical data storage method, reading/writing method, storage device and equipment | |
| CN105144007B (en) | System and method for performing undo and redo operations during machining simulation | |
| CN104504758A (en) | Method for generating curved surface on surface of denture crown | |
| CN111723907A (en) | Model training device, method, system and computer readable storage medium | |
| CN107480364B (en) | BIM (building information modeling) model dynamic organization method for engineering construction information management | |
| CN103310077B (en) | Roll the modeling method of consequent sequence stretching adult | |
| CN106055690A (en) | Method for carrying out rapid retrieval and acquiring data features on basis of attribute matching | |
| CN116225640A (en) | Concurrent construction method for welding digital twin three-dimensional scene model | |
| CN111881578B (en) | Graph database based mechanical product digital twin model layered modeling method | |
| CN114140047B (en) | System bill of materials generation method, system, storage medium and equipment | |
| CN112685936B (en) | Modeling method for shell mother-of-pearl microstructure finite element analysis | |
| CN105205107A (en) | Internet of Things data similarity processing method | |
| CN104794010A (en) | Optimization method for information interaction in system | |
| CN112052542B (en) | Intelligent design method and system for ultrasonic rolling amplitude transformer for blade surface strengthening | |
| CN113111612A (en) | Discrete point cloud repeated point fast searching method based on self-adaptive space subdivision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |