CN109409021A - A kind of bolt connection in engine simulation analysis - Google Patents
A kind of bolt connection in engine simulation analysis Download PDFInfo
- Publication number
- CN109409021A CN109409021A CN201811550684.7A CN201811550684A CN109409021A CN 109409021 A CN109409021 A CN 109409021A CN 201811550684 A CN201811550684 A CN 201811550684A CN 109409021 A CN109409021 A CN 109409021A
- Authority
- CN
- China
- Prior art keywords
- bolt
- node
- nodes
- region
- simulation analysis
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Testing Of Engines (AREA)
Abstract
A kind of bolt connection in engine simulation analysis, comprising: complete model simplification and grid dividing: establishing the bolted model of clamping element for being made of part A and part B bolt, and 2D and 3D grid dividing is done, further include: 3 nodes of contact area, effective thread Area generation between the bolt head region of bolt, part A and part B；3 rigid elements are generated by 3 nodes；2 pole units for replacing stud are generated by 3 nodes, the principal point that 2 pole units connect 3 rigid elements is used, to simulate two sections of bolts for being clamped the segmentation of part contact surface, and it is finally completed the foundation for being entirely bolted model, accurate, succinct bolted reduced chemical reaction kinetics model is provided for engine simulation analysis.
Description
Technical field
The invention belongs to automobile engine Finite Element Simulation Analysis fields, and in particular in a kind of engine simulation analysis
Bolt connection.
Background technique
Currently, automobile market competition is more fierce, shorten the automobile R&D cycle, enable new automotive type faster on
City seizes the market share and improves competitiveness, is the road of the development of each automobile main frame maker.In such circumstances, before automobile engine
In phase development process, it is often necessary to simulation analysis is carried out before exemplar produces, to shorten the R&D cycle.According to statistics, one is started
Bolt quantity on machine can up to more than 200, while the model of bolt, specification, material etc. are also not quite similar.Therefore, starting
When machine Finite Element Simulation Analysis, bolted analogy method generates the great influence that can not ignore to simulation result.
In traditional engine simulation analysis, there are two ways to being bolted: first method is using rigid element
All nodes of link bolt hole inner wall carry out the connection between simulated assembly, but when the method is only applicable to the connection between thin-walled parts
Simulation calculation.This method handle, which is bolted, approximately regards rigid connection as, does not take into account that the flexural property of bolt.But it sends out
Component in motivation is largely cast member, and the spiro rod length of bolt is also relatively long, and the flexural property of bolt itself is for knot
The influence of fruit is very big, so obtained resulting deviation is also larger when the method is used for engine simulation analysis；Second
Method is completely to establish the physical grid model of bolt, and assign the real property of material, and this emulation mode is relatively accurate,
But need to establish at least six contact surface and 3 contacts pair, the bolt quantity in engine in the foundation of a bolt model
Up to more than 200, thus when using the method, it is time-consuming permanent in the preceding processing work of model, it is cumbersome, it is not suitable for quickly
In efficient project development work.
Summary of the invention
The purpose of the present invention is: in view of the deficiencies of the prior art, the object of the present invention is to provide a kind of emulation point of engine
Bolt connection in analysis fast and efficiently completes the preceding place of correlation analysis item under the premise of guaranteeing computational solution precision
Science and engineering is made, and provides more sound assurance for the Design and optimization work of engine Related product.
To realize the above-mentioned technical purpose, the present invention provides the bolt connection in a kind of engine simulation analysis, packet
It includes: completing model simplification and grid dividing: establishing the bolted model of clamping element for being made of part A and part B bolt,
And 2D and 3D grid dividing is done, further include: between the bolt head region of the bolt, the part A and the part B
3 contact area, effective thread Area generation nodes；3 rigid elements are generated by 3 nodes；It is saved by described 3
Point generates 2 pole units for replacing stud, and the principal point that 2 pole units connect 3 rigid elements is used, pressed from both sides with simulation
Two sections of bolts of tight part contact surface segmentation, and it is finally completed the foundation for being entirely bolted model.
By the present invention in that a bolt can be effectively simulated with 3 nodes, 3 rigid elements and 2 pole units,
Accurate, succinct bolted reduced chemical reaction kinetics model is provided for engine simulation analysis.
As a further improvement, the bolt head region be syncopated as at the upper surface bolt hole of the part A with
The consistent region of bolt head diameter；The contact area is at the bolt hole of the lower surface of the part A with described zero
At the upper surface bolt hole of part B, it is syncopated as the region of twice of bolt head diameter respectively；The effective thread region is
The threaded portion being syncopated as in the bolt hole of the part B.
As a further improvement, it is created in the bolt head region and at the bolt hole center of the upper surface the part A
First node；The second section is created in the contact area and in the bolt hole center of the part A and the part B contact surface
Point；In the effective thread region and the creation third node at the bolt hole center of the part B.
As a further improvement, using three nodes as the host node of 3 rigid elements；Described
Bolt head region and host node and generation in the upper surface of the part A, using the first node as the first rigid element
First rigid element；In the contact area and upper surface overlapping position in the lower surface of the part A and the part B, with
The second node as the second rigid element host node and generate second rigid element；In the effective thread region
And in the bolt hole of the part B, using the third node as the host node of third rigid element and the third is generated
Rigid element.
As a further improvement, the slave node of first rigid element is all sections of the bolt head region
Point；The slave node of second rigid element is all nodes of the contact area；The slave node of the third rigid element
For all nodes in the effective thread region.
As a further improvement, the first pole unit is established between the first node and the second node；Institute
It states and establishes the second pole unit between second node and the third node；Pass through 3 nodes, 3 rigid elements, institute
State the foundation that 2 pole units complete the simulation model of a bolt.
As a further improvement, the section attribute of first pole unit and second pole unit, material parameter according to
It is assigned according to the actual parameter of bolt.
Detailed description of the invention
Fig. 1 is bolt fixed clamping piece schematic diagram；
Fig. 2 is node schematic diagram；
Fig. 3 is simulation schematic diagram.
Appended drawing reference: bolt 1, part A2, part B3, bolt head region 4, contact area 5, effective thread region 6, first
Node 11, second node 12, third node 13, the first rigid element 21, the second rigid element 22, third rigid element 23, the
One pole unit 31, the second pole unit 32.
Specific embodiment
As shown in Figures 1 to 3, the present invention provides the bolt connection in a kind of engine simulation analysis comprising: it completes
Model simplification and grid dividing: the bolted model of clamping element for being made of part A2 and part B3 bolt 1 is established, and is done
2D and 3D grid dividing, further include: between the bolt head region 4 of the bolt 1, the part A2 and the part B3
Contact area 5, effective thread region 6 generate 3 nodes；3 rigid elements are generated by 3 nodes；Pass through described 3
Node generates 2 pole units for replacing stud, and the principal point that 2 pole units connect 3 rigid elements is used, to simulate quilt
Two sections of bolts of clamping element contact surface segmentation, and it is finally completed the foundation for being entirely bolted model.
By the present invention in that a bolt can be effectively simulated with 3 nodes, 3 rigid elements and 2 pole units,
Accurate, succinct bolted reduced chemical reaction kinetics model is provided for engine simulation analysis.
As a further improvement, the bolt head region 4 is to be syncopated as at the upper surface bolt hole of the part A2
With the consistent region of bolt head diameter；The contact area 5 is at the bolt hole of the lower surface of the part A2 and institute
It states at the upper surface bolt hole of part B3, is syncopated as the region of twice of bolt head diameter respectively；The effective thread
Region 6 is the threaded portion being syncopated as in the bolt hole of the part B.
As a further improvement, it is created in the bolt head region 4 and at the bolt hole center of the upper surface the part A2
Build first node 11；It is created in the contact area 5 and in the bolt hole center of the part A2 and the part B3 contact surface
Second node 12；In the effective thread region 6 and the creation third node 13 at the bolt hole center of the part B.
As a further improvement, using three nodes as the host node of 3 rigid elements；Described
Bolt head region 4 and in the upper surface of the part A2, using the first node 11 as the host node of the first rigid element 21
And generate the first rigid element 21；In the contact area 5 and upper table in the lower surface of the part A2 and the part B3
Face overlapping position using the second node 12 as the host node of the second rigid element 22 and generates second rigid element 22；
In the effective thread region 6 and in the bolt hole of the part B3, using the third node 13 as third rigid element
23 host node simultaneously generates the third rigid element 23.
As a further improvement, the slave node of first rigid element 21 for the bolt head region 4 institute
There is node；The slave node of second rigid element 22 is all nodes of the contact area 5；The third rigid element 23
Slave node be the effective thread region 6 all nodes.
As a further improvement, the first pole unit is established between the first node 11 and the second node 12
31；The second pole unit 32 is established between the second node 12 and the third node 13；Pass through 3 nodes, described 3
A rigid element, 2 pole units complete the foundation of the simulation model of a bolt.
As a further improvement, the section attribute of first pole unit 31 and second pole unit 32, material ginseng
Number is assigned according to the actual parameter of bolt.
In the preferred embodiment of the invention, for the convenience of description, upper clamping element is named as part A, lower clamping element life
Entitled part B.After carrying out simplified and grid dividing to model, it is syncopated as at the upper surface bolt hole of part A and bolt head
Region of the same size is syncopated as twice respectively at the bolt hole of the lower surface part A and at the upper surface bolt hole of part B
The region of bolt head size is syncopated as the region of effective thread, and at the center of these three positions in the bolt hole of part B
Point generates 3 nodes, the principal point as 3 Rigids rigid elements in next step.Use the slave node of 3 Rigids rigid elements
The upper surface part A bolt head Area Node, part A and part B contact area node and the effective thread of part B are grabbed respectively
Area Node, 2 Bar pole units connect two sections of spiral shells that 3 Rigids rigidity principal points are used to simulate clamped part contact surface segmentation
Bolt.Accurate, succinct bolted reduced chemical reaction kinetics model is provided for engine simulation analysis.
For the practical application figure applied the method in automobile engine simulation analysis, the method passes through 3 nodes, 3
A Rigids rigid element, 2 Bar units are bolted to simulate, and part A upper and lower surfaces are cut out with the upper surface part B
Region effectively and really simulate bolted compression region, the region of cutting is really reacted in part B bolt hole
The zone of action of bolt, Bar pole unit then really simulate the bending ability of bolt.Therefore, the method is applied in automobile
In the model analysis of engine, can quickly, the accurately and efficiently bolt connection in simulated automotive engine and in engineering
It is proven in practical application.
Computational accuracy of the present invention is high, and the error calculated obtained compared to the method mentioned above modeled completely exists
Within 3%.It is easy to operate, it only needs to generate 3 nodes, 3 Rigids rigid elements and 2 Bar pole units at each bolt hole
I.e. analog one is bolted.It is high-efficient, it is no longer necessary to generate physical grid for each bolt, corresponding contact surface and connect
Touching pair, is greatly saved the working time.
It should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, it should be understood that non-limiting embodiment party
Case is illustrated as just example.The protection scope of the desired essence of the application is more embodied in independent claims offer
Range and its dependent claims.
Claims (7)
1. the bolt connection in a kind of engine simulation analysis comprising: complete model simplification and grid dividing: establish by
The bolted model of clamping element that bolt (1) forms part A (2) and part B (3), and 2D and 3D grid dividing is done, it is special
Sign is: its further include:
Contact area (5) between the bolt head region (4) of the bolt (1), the part A (2) and the part B (3),
Effective thread region (6) generates 3 nodes；
3 rigid elements are generated by 3 nodes；
2 pole units for replacing stud are generated by 3 nodes, 2 pole units connect 3 rigid elements
Principal point is used, and to simulate two sections of bolts for being clamped the segmentation of part contact surface, and is finally completed the foundation for being entirely bolted model.
2. the bolt connection in a kind of engine simulation analysis as described in claim 1, it is characterised in that:
The bolt head region (4) is to be syncopated as and bolt head diameter one at the upper surface bolt hole of the part A (2)
The region of cause；
The contact area (5) be at the bolt hole of the lower surface of the part A (2) with the upper surface spiral shell of the part B (3)
At keyhole, it is syncopated as the region of twice of bolt head diameter respectively；
The effective thread region (6) is the threaded portion being syncopated as in the bolt hole of the part B.
3. the bolt connection in a kind of engine simulation analysis as claimed in claim 2, it is characterised in that:
First node (11) are created in the bolt head region (4) and at part A (2) the upper surface bolt hole center；
In the contact area (5) and in the bolt hole center of the part A (2) and part B (3) contact surface creation second
Node (12)；
Third node (13) are created in the effective thread region (6) and at the bolt hole center of the part B.
4. the bolt connection in a kind of engine simulation analysis as claimed in claim 3, it is characterised in that:
Using three nodes as the host node of 3 rigid elements；
In the bolt head region (4) and in the upper surface of the part A (2), just using the first node (11) as first
Property unit (21) host node and generate the first rigid element (21)；
In the contact area (5) and upper surface overlapping position in the lower surface of the part A (2) and the part B (3), with
The second node (12) as the second rigid element (22) host node and generate second rigid element (22)；
In the effective thread region (6) and in the bolt hole of the part B (3), using the third node (13) as
The host node of three rigid elements (23) simultaneously generates the third rigid element (23).
5. the bolt connection in a kind of engine simulation analysis as claimed in claim 4, it is characterised in that:
The slave node of first rigid element (21) is all nodes of the bolt head region (4)；
The slave node of second rigid element (22) is all nodes of the contact area (5)；
The slave node of the third rigid element (23) is all nodes of the effective thread region (6).
6. the bolt connection in a kind of engine simulation analysis as claimed in claim 5, it is characterised in that:
The first pole unit (31) are established between the first node (11) and the second node (12)；
The second pole unit (32) are established between the second node (12) and the third node (13)；
Building for the simulation model of a bolt is completed by 3 nodes, 3 rigid elements, 2 pole units
It is vertical.
7. the bolt connection in a kind of engine simulation analysis as claimed in claim 6, it is characterised in that: described first
The section attribute of pole unit (31) and second pole unit (32), material parameter are assigned according to the actual parameter of bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550684.7A CN109409021B (en) | 2018-12-18 | 2018-12-18 | Bolt connection method in engine simulation analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550684.7A CN109409021B (en) | 2018-12-18 | 2018-12-18 | Bolt connection method in engine simulation analysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109409021A true CN109409021A (en) | 2019-03-01 |
| CN109409021B CN109409021B (en) | 2022-09-13 |
Family
ID=65459933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550684.7A Active CN109409021B (en) | 2018-12-18 | 2018-12-18 | Bolt connection method in engine simulation analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109409021B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112182798A (en) * | 2020-09-11 | 2021-01-05 | 厦门大学 | Grid construction method and structure of connecting component embedded into plate structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6904395B1 (en) * | 2000-08-16 | 2005-06-07 | Ford Global Technologies, Llc | System and method of generating a finite element mesh for a threaded fastener and joining structure assembly |
| US20170032069A1 (en) * | 2014-04-14 | 2017-02-02 | Idea Rs S.R.O. | Computer-implemented method for simulating behavior of a screw connection between metal components of engineering structures |
| CN107563072A (en) * | 2017-09-07 | 2018-01-09 | 上汽大众汽车有限公司 | Welded nut finite element modeling method based on automobile Fatigue Simulation |
| CN107748822A (en) * | 2017-10-31 | 2018-03-02 | 华晨汽车集团控股有限公司 | A kind of ballasting method in engine accessory power rating simulation analysis |
| CN108038327A (en) * | 2017-12-22 | 2018-05-15 | 中车唐山机车车辆有限公司 | Strength values analogy method, device and the terminal device of bolt |
| CN108170942A (en) * | 2017-12-26 | 2018-06-15 | 北京无线电测量研究所 | A kind of finite element modeling system and method for bolt fastening structure |
-
2018
- 2018-12-18 CN CN201811550684.7A patent/CN109409021B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6904395B1 (en) * | 2000-08-16 | 2005-06-07 | Ford Global Technologies, Llc | System and method of generating a finite element mesh for a threaded fastener and joining structure assembly |
| US20170032069A1 (en) * | 2014-04-14 | 2017-02-02 | Idea Rs S.R.O. | Computer-implemented method for simulating behavior of a screw connection between metal components of engineering structures |
| CN107563072A (en) * | 2017-09-07 | 2018-01-09 | 上汽大众汽车有限公司 | Welded nut finite element modeling method based on automobile Fatigue Simulation |
| CN107748822A (en) * | 2017-10-31 | 2018-03-02 | 华晨汽车集团控股有限公司 | A kind of ballasting method in engine accessory power rating simulation analysis |
| CN108038327A (en) * | 2017-12-22 | 2018-05-15 | 中车唐山机车车辆有限公司 | Strength values analogy method, device and the terminal device of bolt |
| CN108170942A (en) * | 2017-12-26 | 2018-06-15 | 北京无线电测量研究所 | A kind of finite element modeling system and method for bolt fastening structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112182798A (en) * | 2020-09-11 | 2021-01-05 | 厦门大学 | Grid construction method and structure of connecting component embedded into plate structure |
| CN112182798B (en) * | 2020-09-11 | 2022-06-21 | 厦门大学 | Grid construction method and structure of connecting component embedded into plate structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109409021B (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108959726B (en) | Method for automatically generating grid BIM model | |
| CN104077428B (en) | A kind of remote finite element analysis method of service industry alliance | |
| CN105302991B (en) | A kind of Divergent exhaust pipes mechanism parameter analysis method | |
| CN109409021A (en) | A kind of bolt connection in engine simulation analysis | |
| CN106825563A (en) | Increasing material manufacturing model treatment system | |
| CN107895086A (en) | A kind of equivalent stress analysis method of the full dam body of arch dam | |
| CN108595800B (en) | Reticulated shell structure modeling method | |
| CN107489277B (en) | Novel steel-hybrid beam column node construction structure and comprehensive construction method | |
| CN103902757A (en) | System and method for rapid creation and interaction of three-dimensional model | |
| Paul et al. | 3D multiphysics simulation of jet electrochemical machining of intersecting line removals | |
| CN111259575B (en) | Finite element analysis design method for complex steel pipe node integral model | |
| CN108723628A (en) | The planing method of hexagonal bracket mouth steel node weld assemble sequence | |
| CN109815531A (en) | Spatial complex manifold Column border node bearing capacity computation method | |
| CN116467806A (en) | Method and system for calculating welding value of butt annular weld | |
| CN107134007A (en) | The three-dimensional fast modeling method of traffic infrastructure | |
| CN109773058A (en) | Stamping die symbol type method | |
| CN103995497B (en) | The complex-curved recognition methods of aircraft structure extended based on interarea | |
| CN106446410B (en) | High pedestal jib crane three-dimensional fast modeling method | |
| CN103745068A (en) | Finite element modeling method of sleeve riveting structure | |
| Wald et al. | Structural analysis and design of steel connections using component based finite element model (CBFEM) | |
| CN115221720A (en) | Joint simulation method, equipment, medium and system of nuclear energy equipment | |
| CN107169239A (en) | Contacting search method based on angular bisector | |
| CN101673416A (en) | Method for dividing hexahedral mesh of piston of internal-combustion engine | |
| CN105844016A (en) | Planned building engineering quantity acquisition method based on building model cutting | |
| Austern et al. | Rationalization and Optimization of Concrete Façade Panels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |