CN112464539B - Simulation analysis method for thermal battery lug impact resistance based on ANSYS - Google Patents
Simulation analysis method for thermal battery lug impact resistance based on ANSYS Download PDFInfo
- Publication number
- CN112464539B CN112464539B CN202011493312.2A CN202011493312A CN112464539B CN 112464539 B CN112464539 B CN 112464539B CN 202011493312 A CN202011493312 A CN 202011493312A CN 112464539 B CN112464539 B CN 112464539B
- Authority
- CN
- China
- Prior art keywords
- thermal battery
- lugs
- shell
- impact
- ansys
- 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
- 238000004088 simulation Methods 0.000 title claims abstract description 55
- 238000004458 analytical method Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims abstract description 10
- 238000013461 design Methods 0.000 claims abstract description 10
- 230000001052 transient effect Effects 0.000 claims abstract description 7
- 238000005457 optimization Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 230000011218 segmentation Effects 0.000 claims abstract description 4
- 239000011257 shell material Substances 0.000 claims description 42
- 238000003466 welding Methods 0.000 claims description 21
- 230000004927 fusion Effects 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000005493 welding type Methods 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 2
- 238000009863 impact test Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000012827 research and development Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003854 Surface Print Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 231100000817 safety factor Toxicity 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
- G06T17/205—Re-meshing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Computer Graphics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a simulation analysis method for the impact resistance of a thermal battery support lug based on ANSYS, which comprises the following steps: establishing a three-dimensional simulation model of the thermal battery by adopting NX modeling software, and simplifying a pile model in the thermal battery into a cylindrical model; loading a thermal battery three-dimensional simulation model into TRANSIENT STRUCTURAL modules in ANSYS workbench software, defining materials for the thermal battery model and performing surface imprinting segmentation on a thermal battery cover body; performing grid division on the thermal battery three-dimensional simulation model establishing the contact relation and setting boundary conditions, wherein the boundary condition setting comprises the steps of setting a thermal battery fixed point, setting an impact time step length, setting an impact magnitude value and setting an impact direction; and performing simulation calculation to obtain a stress distribution cloud image of the thermal battery and deformation conditions of each part in the thermal battery impact process, and performing optimization reinforcement design on weak points of the thermal battery according to calculation results.
Description
Technical Field
The invention belongs to the technical field of thermal batteries, and particularly relates to a simulation analysis method for impact resistance of a thermal battery support lug based on ANSYS.
Background
The thermal battery is used as a primary reserve power supply of the weapon power supply system, and not only meets the electrical performance index requirements of the weapon missile-borne power supply, but also meets the harsh impact-resistant overload requirements of the weapon system. At present, the test method for checking the impact overload performance of the thermal battery is mainly completed through an impact test bed. Considering safety factors, the method generally comprises the steps of firstly fixing a thermal battery to be tested in a specific test tool, and then fixing the test tool fixed with the thermal battery on an impact action part of an impact test bed; and then, according to the impact parameters of the thermal battery, programming the test bed to complete the impact test. The impact overload performance assessment is completed by the fixture, on one hand, the weight of the thermal battery is increased, and on the other hand, the direct contact point of the impact test bed is the fixture and is not the thermal battery. When the thermal battery is actually installed and used, the thermal battery is installed without a test tool. The impact test bed has certain deviation to the impact overload performance examination of the thermal battery with the tool and the actual overload force of the thermal battery in a weapon system, and is not beneficial to the exposure of structural design defects of the thermal battery in the research and development process.
Disclosure of Invention
The invention discloses a simulation analysis method for the impact resistance of a thermal battery support lug based on ANSYS, which is used for solving the problems of the impact resistance assessment technology and means of the thermal battery support lug.
The invention discloses a simulation analysis method for the impact resistance of a thermal battery support lug based on ANSYS, which comprises the following steps: establishing a three-dimensional simulation model of the thermal battery by adopting NX modeling software, and simplifying a pile model in the thermal battery into a cylindrical model; loading a thermal battery three-dimensional simulation model into TRANSIENT STRUCTURAL modules in ANSYS workbench software, defining materials for the thermal battery model and performing surface imprinting segmentation on a thermal battery cover body; performing grid division on the thermal battery three-dimensional simulation model establishing the contact relation and setting boundary conditions, wherein the boundary condition setting comprises the steps of setting a thermal battery fixed point, setting an impact time step length, setting an impact magnitude value and setting an impact direction; and performing simulation calculation to obtain a stress distribution cloud image of the thermal battery and deformation conditions of each part in the thermal battery impact process, and performing optimization reinforcement design on weak points of the thermal battery according to calculation results.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, contact arrangement between the cover body and the shell and between the shell and the lugs is set according to actual welding types.
According to one embodiment of the simulation analysis method for the impact resistance of the lugs of the thermal battery based on ANSYS, the number of the lugs is set to be 1-6.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, the thickness of the lugs is 0.1-10 mm.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, the welding positions of the lugs on the thermal battery shell are the top of the thermal battery cover, the bottom of the thermal battery shell, the middle of the shell or the top of the shell.
According to one embodiment of the simulation analysis method for the impact resistance of the lugs of the thermal battery based on ANSYS, when the lugs are installed on the thermal battery for more than 2 or more than 2, the included angle between the lugs is 30-180 degrees.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, the thermal battery shell material, the cover material and the lug material are made of stainless steel or aluminum alloy.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, a pile cylinder model of the thermal battery is identical to the actual pile mass and pile centroid position of the thermal battery.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, the thermal battery cover body is printed with the thickness of the battery cover body of 1-5 mm, and when the penetration depth is 0.1-1 mm, the cover body side face is divided into a fusion welding part and an unfused welding part.
According to one embodiment of the simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS, argon arc welding is adopted between the thermal battery cover body and the shell, the fusion welding part of the cover body is in surface-to-surface contact with the shell, and the contact form is Bound; the non-fusion welded part of the cover body is in surface-to-surface contact with the shell, and the contact form is No Separation; the support lugs and the shell are welded by laser, and are in line-surface contact.
Meanwhile, a theoretical reference basis is provided for structural design optimization in the process of research and development of the thermal battery, and the simulation analysis method for the thermal battery support lug impact test based on ANSYS is creatively provided, so that the influence of a tool on the thermal battery support lug impact overload performance assessment process can be effectively avoided, and a theoretical reference value is provided for the thermal battery structural design.
Drawings
FIG. 1 is an isometric view of a thermal battery simulation model;
FIG. 2 is an isometric view of a thermal battery lug simulation model;
FIG. 3 is a surface print of the cover 1;
Fig. 4 is a stress cloud after thermal battery impact simulation test.
Reference numerals:
a cover 1; a housing 2; a support lug 3; a support lug 4; a support lug 5; lugs 6, lug bottom 11; a lug mounting hole 12; a cover and housing welding surface 21; the cover and housing are not welded 22.
Detailed Description
For the purposes of clarity, content, and advantages of the present invention, a detailed description of the embodiments of the present invention will be described in detail below with reference to the drawings and examples.
The invention discloses a thermal battery support lug impact resistance simulation analysis method based on ANSYS, which comprises the following steps: and judging that the impact resistance assessment of the thermal battery belongs to a transient process, and adopting TRANSIENT STRUCTURAL modules in ANSYS Workbench software to simulate and analyze the impact resistance overload performance of the thermal battery lugs in the non-tooling state of the thermal battery. The method specifically comprises the following steps:
(1) Establishing a three-dimensional simulation model of the thermal battery by adopting NX modeling software, and simplifying a pile model in the thermal battery into a cylindrical model;
(2) Loading a thermal battery three-dimensional simulation model into TRANSIENT STRUCTURAL modules in ANSYS workbench software, defining materials for the thermal battery model, performing surface marking segmentation on a thermal battery cover 1, and performing contact setting between the cover 1 and a shell 2 and between the shell 2 and lugs according to actual welding types;
(3) And performing grid division on the thermal battery three-dimensional simulation model establishing the contact relation and setting boundary conditions. The boundary condition setting comprises the steps of setting a thermal battery fixed point, setting an impact time step length, setting an impact magnitude and setting an impact direction;
(4) And performing simulation calculation to obtain a stress distribution cloud chart of the thermal battery, deforming each part in the thermal battery impact process, and performing optimization reinforcement design on the weak points of the thermal battery according to the calculation result.
Lugs 3-6, the number of which is usually 1-6, but not limited to 1-6;
3-6 of supporting lugs, wherein the thickness of the supporting lugs is 0.1-10 mm;
the supporting lugs 3-6 are arranged at the welding positions of the thermal battery shell 2, namely the top of the thermal battery cover 1, the bottom of the thermal battery shell, the middle part of the shell 2 or the top of the shell 2, but are not limited to the distribution of the positions;
3-6 lugs, wherein when more than 2 lugs or 2 lugs are arranged on the thermal battery, the included angle between the lugs can be 30-180 degrees, but the included angle range is not limited;
The thermal battery comprises a shell 2 material, a cover 1 material and a lug material, wherein the shell material comprises but is not limited to stainless steel materials and aluminum alloy materials;
The pile cylindrical model of the thermal battery is the same as the pile mass and the pile centroid position of the actual thermal battery;
The thermal battery cover body 1 is printed with the thickness of the battery cover body 1 of 1 mm-5 mm, when the penetration depth is 0.1 mm-1 mm, the side surface of the cover body 1 is divided into a fusion welding part (0.1 mm-1 mm) and a non-fusion welding part (0.9 mm-4 mm);
The thermal battery cover body 1 and the shell 2 are welded by argon arc welding, the fusion welding part of the cover body 1 is in surface-to-surface contact with the shell 2, and the contact mode is Bound; the non-welded part of the cover body 1 is in surface-to-surface contact with the shell 2, and the contact form is No Separation; the lug and the shell 2 are welded by laser, and the lug and the shell 2 are arranged in a line-surface contact mode and in a Bound contact mode with a Pinball Radius value of 0.01-0.1 mm.
The fixing point of the thermal battery is fixed by selecting a lug mounting hole 12 or a lug mounting bottom surface;
The impact value of the thermal battery is determined according to the impact waveform, the impact time and the acceleration value of the thermal battery. When the impact is performed with a half sine wave, the impact magnitude is set as acceleration x sin [ 360/(impact time of one cycle) ×time ];
And judging the weak points of the thermal battery, and comparing the stress generated on the thermal battery model after simulation calculation with the yield strength of the corresponding material to determine.
The invention has the characteristics and positive effects that:
1) By adopting the simulation analysis method provided by the invention, the influence of the tool on the impact resistance overload performance assessment process of the support lugs of the thermal battery can be effectively avoided, the local stress conditions of the thermal battery can be directly or indirectly applied with overload forces in different magnitudes and directions for stress analysis, and the research and development efficiency is greatly improved;
2) By adopting the simulation analysis method provided by the invention, the period and the cost of tooling design, processing and the like and the consumption of the thermal battery can be reduced. The research and development period of the thermal battery is greatly shortened, the research and development cost of the thermal battery is reduced, and meanwhile, the potential safety hazard in the impact resistance test process of the thermal battery can be effectively avoided.
Examples: taking a thermal battery with 4 lugs as an example, the impact test condition is that the impact acceleration is 40g, the waveform is half sine wave (single time), the overload time is 9ms, the impact overload direction is Z direction, and the single time is the impact overload direction. The implementation steps are as follows:
(1) Geometric modeling: according to the fixed installation requirement of the thermal battery, the thermal battery is designed into the thermal battery with the lugs by adopting NX software. Please refer to fig. 1 for designing a three-dimensional simulation model of a thermal battery. Fig. 1 is a schematic diagram of a three-dimensional model of a thermal battery according to an embodiment of the present invention.
(2) The battery with lugs shown in fig. 1 was introduced into TRANSIENT STRUCTURAL module in ANSYS workbench software, and the materials of the case 2, the cover 1, the lugs, and the like were set to stainless steel according to the materials used for the battery.
(3) The cover body 1 and the shell body 2 are welded by argon arc welding, and after the model is loaded, the cylindrical surface of the cover body 1 is subjected to surface imprinting treatment in Design modeler with the penetration depth of 0.5mm, as shown in figure 2. The contact form of the fusion welding part of the thermal battery cover body 1 and the shell 2 is set as bound, and the contact form of the non-fusion welding part of the thermal battery cover body 1 and the shell 2 is set as No Separation; the lugs 1, the lugs 2, the lugs 3, the lugs 4 and the shell 2 are welded by laser, the lugs 4 and the shell 2 are contacted with each other in a line-to-surface mode, the contact mode is set to be bound, and the Pinball Radius is set to be 0.1mm. And performing grid division on the thermal battery three-dimensional simulation model with the contact in a Mechanical form.
(4) The fixed lug mounting holes 12 are fixed points; setting the time step to 9.e-003s; the impact direction is set as Z direction; the impact acceleration magnitude is set as: 40X 9.8X 1000X sin [ 360/(2X 0.009). Times.time ]. And (4) performing simulation calculation to obtain a stress distribution cloud picture of the thermal battery, wherein the cloud picture is shown in figure 4.
Impact simulation test result analysis:
As can be seen from fig. 4, after the thermal battery is subjected to the above condition impact simulation, the stress at the welding positions of the bottom and the lugs and the shell 2 is concentrated, the maximum magnitude is 88.3MPa, and the stress value at the welding positions of the four lugs and the shell 2 is about 29-39 MPa. After the die impact simulation, the maximum stress born by the thermal battery is far smaller than the tensile strength (515 MPa) of the stainless steel material, and the thermal battery lug fixing mode can be judged to be reasonable in design.
The described embodiments are only a part of the invention, but not all, and the invention is applicable to all thermal battery lugs in the impact resistance simulation analysis method.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (9)
1. A simulation analysis method for the impact resistance of a thermal battery lug based on ANSYS is characterized by comprising the following steps:
Establishing a three-dimensional simulation model of the thermal battery by adopting NX modeling software, and simplifying a pile model in the thermal battery into a cylindrical model;
Loading a thermal battery three-dimensional simulation model into TRANSIENT STRUCTURAL modules in ANSYS workbench software, defining materials for the thermal battery model and performing surface imprinting segmentation on a thermal battery cover body;
Performing grid division on the thermal battery three-dimensional simulation model establishing the contact relation and setting boundary conditions, wherein the boundary condition setting comprises the steps of setting a thermal battery fixed point, setting an impact time step length, setting an impact magnitude value and setting an impact direction;
Performing simulation calculation to obtain a stress distribution cloud image of the thermal battery and deformation conditions of each part in the thermal battery impact process, and performing optimization reinforcement design on weak points of the thermal battery according to calculation results;
Wherein,
The thermal battery cover body and the shell are welded by argon arc welding, the fusion welding part of the cover body is in surface-to-surface contact with the shell, and the contact mode is Bound; the non-fusion welded part of the cover body is in surface-to-surface contact with the shell, and the contact form is No Separation; the support lugs and the shell are welded by laser, and are in line-surface contact.
2. The simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS according to claim 1 is characterized in that the contact arrangement between the cover body and the shell and between the shell and the lugs is arranged according to the actual welding type.
3. The simulation analysis method for the impact resistance of the lugs of the thermal battery based on ANSYS according to claim 2 is characterized in that the number of lugs is 1-6.
4. The simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS according to claim 2 is characterized in that the thickness of the lugs is 0.1-10 mm.
5. The simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS according to claim 1 is characterized in that the welding position of the lugs on the thermal battery shell is the top of the thermal battery cover, the bottom of the thermal battery shell, the middle of the shell or the top of the shell.
6. The simulation analysis method for the impact resistance of the lugs of the thermal battery based on ANSYS according to claim 1 is characterized in that the included angle between the lugs is 30-180 degrees when the lugs are arranged on the thermal battery for 2 or more than 2 lugs.
7. The simulation analysis method for the impact resistance of the thermal battery lugs based on ANSYS according to claim 1 is characterized in that the thermal battery shell material, the cover material and the lug material are made of stainless steel or aluminum alloy.
8. The simulation analysis method for the impact resistance of the lugs of the thermal battery based on ANSYS according to claim 1 is characterized in that a pile cylindrical model of the thermal battery is identical to the actual pile mass and pile centroid position of the thermal battery.
9. The simulation analysis method for the impact resistance of the thermal battery lug based on ANSYS according to claim 1 is characterized in that the thermal battery cover body surface mark divides the cover body side surface into a fusion welding part and an unfused welding part when the thickness of the battery cover body is 1 mm-5 mm and the penetration depth is 0.1 mm-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011493312.2A CN112464539B (en) | 2020-12-16 | 2020-12-16 | Simulation analysis method for thermal battery lug impact resistance based on ANSYS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011493312.2A CN112464539B (en) | 2020-12-16 | 2020-12-16 | Simulation analysis method for thermal battery lug impact resistance based on ANSYS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112464539A CN112464539A (en) | 2021-03-09 |
| CN112464539B true CN112464539B (en) | 2024-05-14 |
Family
ID=74803145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011493312.2A Active CN112464539B (en) | 2020-12-16 | 2020-12-16 | Simulation analysis method for thermal battery lug impact resistance based on ANSYS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112464539B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210809B (en) * | 2021-04-27 | 2022-08-23 | 西安北方庆华机电有限公司 | Support lug structure, welding fixture for fixing support lug structure and support lug battery shell welding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354982A (en) * | 2016-10-14 | 2017-01-25 | 广西电网有限责任公司电力科学研究院 | Finite element simulation analysis method of power wire clip |
| CN108062429A (en) * | 2017-11-04 | 2018-05-22 | 山西长征动力科技有限公司 | A kind of simulating analysis of Soft Roll type lug structure of lithium-ion power battery |
| CN111597656A (en) * | 2020-05-19 | 2020-08-28 | 苏州市职业大学 | Vehicle power battery lifting lug optimization method |
| CN111767625A (en) * | 2019-03-27 | 2020-10-13 | 上海蓝诺新能源技术有限公司 | Thermal simulation method for lithium ion battery pack |
| CN112036065A (en) * | 2020-08-20 | 2020-12-04 | 杭州微慕科技有限公司 | Battery pack falling simulation analysis method with packing material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5403290B2 (en) * | 2011-03-31 | 2014-01-29 | 三菱自動車工業株式会社 | Electric vehicle battery mounting structure |
-
2020
- 2020-12-16 CN CN202011493312.2A patent/CN112464539B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354982A (en) * | 2016-10-14 | 2017-01-25 | 广西电网有限责任公司电力科学研究院 | Finite element simulation analysis method of power wire clip |
| CN108062429A (en) * | 2017-11-04 | 2018-05-22 | 山西长征动力科技有限公司 | A kind of simulating analysis of Soft Roll type lug structure of lithium-ion power battery |
| CN111767625A (en) * | 2019-03-27 | 2020-10-13 | 上海蓝诺新能源技术有限公司 | Thermal simulation method for lithium ion battery pack |
| CN111597656A (en) * | 2020-05-19 | 2020-08-28 | 苏州市职业大学 | Vehicle power battery lifting lug optimization method |
| CN112036065A (en) * | 2020-08-20 | 2020-12-04 | 杭州微慕科技有限公司 | Battery pack falling simulation analysis method with packing material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112464539A (en) | 2021-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112464539B (en) | Simulation analysis method for thermal battery lug impact resistance based on ANSYS | |
| CN106624361A (en) | Laser welding tool for new energy resource power battery connecting piece | |
| CN110220780A (en) | Mechanical property test system and test method for square battery | |
| KR20180136192A (en) | Test Device for Battery Cell | |
| Gilaki et al. | Model-based design of an electric bus Lithium-ion battery pack | |
| CN114799357B (en) | Web plate processing method | |
| CN105598449A (en) | Three-dimensional printing method of metal sample containing built-in inclusion | |
| CN111008493B (en) | Simulation method for grinding of grinding wheel | |
| CN217513237U (en) | First workpiece tool for welding battery module bar | |
| CN202229837U (en) | Auxiliary calibrating device of fixed electronic weighing instrument | |
| CN110427725B (en) | Method for weakening deformation of pressure container flaps in storage and transportation states | |
| CN214392778U (en) | Spot welding fixture for hot forming patch plate | |
| CN108319748A (en) | The design method of shaped electrode for web plate resistance spot welding | |
| CN207716981U (en) | A kind of module end plate fixed beam simple inpecting tool | |
| CN113139240A (en) | Welding spot failure simulation method | |
| CN209461609U (en) | A kind of lithium battery mould group bulging test fixture | |
| CN107826267B (en) | Processing and detecting method of titanium alloy rotorcraft cockpit support frame | |
| CN214844565U (en) | Ultimate strength detection tool for hand brake pull rod of forklift brake | |
| CN102073013B (en) | Installation tool for detecting motor performance | |
| CN209918647U (en) | Laser induction forming workpiece back protection device | |
| CN219945033U (en) | Battery box welding tool for lifting platform | |
| CN109175893A (en) | Diesel engine main beating cap duplicating process method | |
| Chikkangoudar et al. | Design and Development of Milling Fixture for Accumulator Casing Check for updates | |
| CN214953629U (en) | Variable battery frock clamp | |
| Deo et al. | Experimental verification of distortion analysis of welded stiffeners |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |