CN103617330A - Piston mesh division structure - Google Patents
Piston mesh division structure Download PDFInfo
- Publication number
- CN103617330A CN103617330A CN201310674503.2A CN201310674503A CN103617330A CN 103617330 A CN103617330 A CN 103617330A CN 201310674503 A CN201310674503 A CN 201310674503A CN 103617330 A CN103617330 A CN 103617330A
- Authority
- CN
- China
- Prior art keywords
- piston
- grid
- model
- pin hole
- mesh
- 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
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides a piston mesh division structure which is used for conducting CAE analysis on a piston. A mesh enveloping model of the piston comprises a first mesh model and a second mesh model, wherein the first mesh model envelops a piston body, and the second mesh model envelops a piston pin hole part of the piston body. The second mesh model is a hexahedral mesh enveloping model built on the piston pin hole part. CAE analysis meshes on the piston pin hole part are divided into hexahedral meshes, the hexahedral meshes are high in quality and uniform in density, contact analysis operation can be easily converged, the number of the hexahedral meshes is smaller than the number of tetrahedral meshes, and therefore high processing speed can be acquired, a more accurate analysis result can be acquired, and the solving speed of CAE analysis of the piston is higher.
Description
Technical field
The present invention relates to piston cae analysis technical field, more particularly, relate to a kind of piston grid partition structure.
Background technology
Piston is one of key components and parts of internal combustion engine, its working condition is directly connected to functional reliability and the useful life longevity of internal combustion engine, the structure of piston and residing working environment are very complicated, finite element analysis is carried out in the coupled stress field of therefore piston being carried out, and to its thermal load and combined stress distribution situation, improves significant.
At present when piston is carried out to cae analysis, when the pre-treatment grid of piston is divided, grid major part is all to utilize software generating mesh fast automatically, and this Meshing Method can only generate tetrahedral grid, is difficult to obtain result accurately when contact analysis.
In order to obtain as far as possible result comparatively accurately, be generally when grid division, reduce the element length of grid, make grid become intensive, cause the analysis and solution time to become longer, cae analysis inefficiency.
Therefore, how when guaranteeing cae analysis result accuracy, improving it and solve speed, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of piston grid partition structure, to realize, when guaranteeing cae analysis result accuracy, improve it and solve speed.
In order to achieve the above object, the invention provides following technical scheme:
A kind of piston grid partition structure, for the cae analysis to piston, the grid envelope model of described piston comprises first grid model of envelope on piston only and the second network model in the piston pin hole portion of envelope on described piston only, and described second network model is the hexahedral mesh envelope model that builds on described piston pin hole portion.
Preferably, in above-mentioned piston grid partition structure, described hexahedral mesh envelope model is generated by manual topology.
Preferably, in above-mentioned piston grid partition structure, described first network model is the tetrahedral grid envelope model that CAE system generates automatically.
Preferably, in above-mentioned piston grid partition structure, the corresponding layout of grid node of described piston pin hole portion and the transition section of described piston only.
Piston grid partition structure provided by the invention, for the cae analysis to piston, the grid envelope model of piston comprises first grid model of envelope on piston only and the second network model in the piston pin hole portion of envelope on piston only, and second network model is the hexahedral mesh envelope model that builds on piston pin hole portion.By the cae analysis grid at piston pin hole position is divided into hexahedral mesh, hexahedral mesh quality is high, reasonable organization, contact analysis computing more easily restrains, hexahedral mesh is few compared with the number of grid of tetrahedral grid simultaneously, thereby can obtain processing speed faster, obtain analysis result more accurately, piston cae analysis to solve speed faster.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the grid distribution schematic diagram of the grid partition structure in piston cae analysis provided by the invention.
Embodiment
The invention discloses a kind of piston grid partition structure, when guaranteeing cae analysis result accuracy, improve it and solve speed.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, Fig. 1 is the grid distribution schematic diagram of the grid partition structure in piston cae analysis provided by the invention.
The invention provides a kind of piston grid partition structure, for the cae analysis to piston, the grid envelope model of piston comprises first grid model of envelope on piston only 1 and the second network model in the piston pin hole portion 2 of envelope on piston only 1, and second network model is the hexahedral mesh envelope model that builds on piston pin hole portion 2.By the cae analysis grid of 2, piston pin hole portion is divided into hexahedral mesh, hexahedral mesh quality is high, reasonable organization, contact analysis computing more easily restrains, hexahedral mesh is few compared with the number of grid of tetrahedral grid simultaneously, thereby can obtain processing speed faster, obtains analysis result more accurately, thereby obtain processing speed faster, piston cae analysis to solve speed faster.
In the present invention's one specific embodiment, hexahedral mesh envelope model is generated by manual topology.Hexahedral mesh, needs manually topology to generate, and takies less computer resource when cae analysis, and analysis result accurately and reliably.
In the present invention's one specific embodiment, first network model is the tetrahedral grid envelope model that CAE system generates automatically.Tetrahedral grid generates fast automatically, meets the cae analysis requirement of the other parts of piston except its pin-and-hole portion.During by cae analysis, exist the position of contact analysis to divide hexahedral mesh, without expend a large amount of time in order to obtain accurately result, whole piston is divided into hexahedral mesh;
In the present invention's one specific embodiment, the corresponding layout of grid node of piston pin hole portion and the transition section of piston only.Needing the position of Accurate Analysis to divide hexahedral mesh and corresponding with piston other parts tetrahedral grid node, analysis result is continuous, guarantees that analysis result accurately and reliably.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a piston grid partition structure, for the cae analysis to piston, it is characterized in that, the grid envelope model of described piston comprises first grid model of envelope on piston only (1) and the second network model in the piston pin hole portion (2) of envelope on described piston only (1), and described second network model is for building on the hexahedral mesh envelope model of described piston pin hole portion (2).
2. piston grid partition structure according to claim 1, is characterized in that, described hexahedral mesh envelope model is generated by manual topology.
3. piston grid partition structure according to claim 2, is characterized in that, described first network model is the tetrahedral grid envelope model that CAE system generates automatically.
4. piston grid partition structure according to claim 3, is characterized in that, the corresponding layout of grid node of described piston pin hole portion and the transition section of described piston only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674503.2A CN103617330A (en) | 2013-12-11 | 2013-12-11 | Piston mesh division structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674503.2A CN103617330A (en) | 2013-12-11 | 2013-12-11 | Piston mesh division structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103617330A true CN103617330A (en) | 2014-03-05 |
Family
ID=50168033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674503.2A Pending CN103617330A (en) | 2013-12-11 | 2013-12-11 | Piston mesh division structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103617330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318036A (en) * | 2014-11-10 | 2015-01-28 | 湖南江滨机器（集团）有限责任公司 | Piston pin hole finite element grid rounding method and piston finite element analysis method |
| CN108509669A (en) * | 2017-02-28 | 2018-09-07 | 保隆(安徽)汽车配件有限公司 | A kind of CAE analysis method and system of Simulation Based On Multi-step automatic flanging product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673416A (en) * | 2009-09-30 | 2010-03-17 | 重庆长安汽车股份有限公司 | Method for dividing hexahedral mesh of piston of internal-combustion engine |
| CN102663821A (en) * | 2011-12-06 | 2012-09-12 | 马勒技术投资(中国）有限公司 | Method for fast PCU tetrahedral mesh partition |
| WO2012174357A2 (en) * | 2011-06-15 | 2012-12-20 | Carnegie Mellon University | Generating a mesh of geometric elements |
-
2013
- 2013-12-11 CN CN201310674503.2A patent/CN103617330A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673416A (en) * | 2009-09-30 | 2010-03-17 | 重庆长安汽车股份有限公司 | Method for dividing hexahedral mesh of piston of internal-combustion engine |
| WO2012174357A2 (en) * | 2011-06-15 | 2012-12-20 | Carnegie Mellon University | Generating a mesh of geometric elements |
| CN102663821A (en) * | 2011-12-06 | 2012-09-12 | 马勒技术投资(中国）有限公司 | Method for fast PCU tetrahedral mesh partition |
Non-Patent Citations (3)
| Title |
|---|
| 卢鹏等: "柴油机组合活塞温度场及热机耦合应力分析", 《内燃机与配件》 * |
| 霍心达等: "基HyperMesh的活塞网格划分策略研究", 《石家庄铁道大学学报（自然科学版）》 * |
| 黄鼎键等: "CAD_CAE技术在发动机活塞设计中的应用", 《海峡科学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318036A (en) * | 2014-11-10 | 2015-01-28 | 湖南江滨机器（集团）有限责任公司 | Piston pin hole finite element grid rounding method and piston finite element analysis method |
| CN104318036B (en) * | 2014-11-10 | 2018-03-13 | 湖南江滨机器（集团）有限责任公司 | The finite element grid rounding method and FINITE ELEMENT ANALYSIS OF A PISTON method of piston pin hole |
| CN108509669A (en) * | 2017-02-28 | 2018-09-07 | 保隆(安徽)汽车配件有限公司 | A kind of CAE analysis method and system of Simulation Based On Multi-step automatic flanging product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102054106B (en) | Structure optimization design method and system | |
| US9147024B1 (en) | Hardware and software cosynthesis performance estimation | |
| CN105468878B (en) | A kind of general lithium-ion-power cell packet finite element simulation modeling and setting method | |
| CN103984803A (en) | Finite element load application method | |
| CN103617330A (en) | Piston mesh division structure | |
| CN104123400A (en) | Global-Local detail finite element method based on force method | |
| CN103559361A (en) | Intensity optimization method and stress analysis method for component | |
| CN103530463B (en) | Method for quick transition of finite element three-dimensional model grids | |
| CN108491654A (en) | A kind of 3D solid structural topological optimization method and system | |
| CN105224726A (en) | Structured grid Dynamic mesh is used for the method for unstrctured grid flow field calculation device | |
| CN103150445B (en) | The method for decomposing of a kind of MATLAB model variable and device | |
| CN112347561A (en) | Static aeroelasticity analysis method, device, equipment and storage medium of aircraft | |
| CN103870633B (en) | A kind of large scale structure rapid modeling system | |
| CN104182208A (en) | Method and system utilizing cracking rule to crack password | |
| CN103218493A (en) | Fast isogeometric analysis numerical simulation method based on multiple grids | |
| CN107644139B (en) | Attribute mapping method from CAD model to CAE model | |
| Péron et al. | A python pre-processing module for Chimera assembly | |
| CN103678753A (en) | Finite element calculation method of separated interface connecting strength | |
| CN109710314B (en) | A method of based on graph structure distributed parallel mode construction figure | |
| Penskoi et al. | Specialised computational platform for system dynamics | |
| CN208283770U (en) | Touch-control MCU simulator based on FPGA | |
| Durante et al. | Speculative design in today's business world: overview and role of prototypes | |
| CN105468904B (en) | Based on the PROJECT NETWORKS reliability Near covering for blocking side expander graphs | |
| CN207819346U (en) | A kind of structure merging more transmission lines | |
| Bajaj et al. | Experiments in mapping expressions to DSP blocks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140305 |
|
| RJ01 | Rejection of invention patent application after publication |