CN108846153A - The optimization method and system of car storage battery rack - Google Patents
The optimization method and system of car storage battery rack Download PDFInfo
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- CN108846153A CN108846153A CN201810379419.0A CN201810379419A CN108846153A CN 108846153 A CN108846153 A CN 108846153A CN 201810379419 A CN201810379419 A CN 201810379419A CN 108846153 A CN108846153 A CN 108846153A
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- 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]
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- 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
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F30/17—Mechanical parametric or variational design
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- 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
- G06F2119/06—Power analysis or power optimisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a kind of optimization method of car storage battery rack and system, the method includes：Obtain the model data of battery stand；The model data is imported into Hypermesh and carries out grid dividing, establishes limited element calculation model；The limited element calculation model is imported into ANSYS and carries out model analysis, obtains the maximum stress value of the battery stand；Judge whether the maximum stress value reaches yield limit；If it is not, then being optimized by optistruct model to the battery stand, to realize lightweight.The present invention carries out topological optimization using optistruc can provide completely new design and optimal scheme for designer, thought of the topological optimization based on conceptual design, the optimization of pattern, quality can be carried out under the premise of meeting intensity, reach light-weighted purpose, the duty cycle is greatly reduced, development cost is reduced.
Description
Technical field
The present invention relates to automobile technical fields, more particularly to the optimization method and system of a kind of car storage battery rack.
Background technique
With economy and auto industry rapid development and, the living standard of the people is quickly improved, automobile gradually at
For the trip walking-replacing tool of average family.
Automotive light weight technology is played a crucial role for reducing oil consumption, reducing discharge, has become domestic and international vapour at present
The research hotspot of turner industry, as various countries are to the increasingly strict of oil consumption standard, the task of automotive light weight technology is just more arduous, vapour
Vehicle upper bracket class part has light-weighted space mostly.
In automobile, significant components of the battery stand as carrying battery suffer from higher requirement to its stiffness,
Therefore it needs under the premise of meeting its stiffness, reaches that quality is most light, usually the prioritization scheme of battery stand is all set
Meter first makes modification, then is verified by CAE, but this mode will lead to duty cycle, problem at high cost.
Summary of the invention
For this purpose, an object of the present invention is to provide a kind of optimization method of car storage battery rack, it is existing to solve
Duty cycle, problem at high cost.
The optimization method of the car storage battery rack provided according to the present invention, including：
Obtain the model data of battery stand；
The model data is imported into Hypermesh and carries out grid dividing, establishes limited element calculation model；
The limited element calculation model is imported into ANSYS and carries out model analysis, obtains the battery stand most
Big stress value；
Judge whether the maximum stress value reaches yield limit；
If it is not, then being optimized by optistruct model to the battery stand, to realize lightweight.
The optimization method of the car storage battery rack provided according to the present invention obtains the pattern number of battery stand first
According to then model data is imported into Hypermesh and carries out grid dividing, establishes limited element calculation model, then carry out mode
Analysis, obtains the maximum stress value of battery stand, if maximum stress value is not up to yield limit, passes through optistruct mould
Type optimizes the battery stand, can be provided using optistruc progress topological optimization for designer completely new
Design and optimal scheme, thought of the topological optimization based on conceptual design can carry out pattern, matter under the premise of meeting intensity
The optimization of amount reaches light-weighted purpose, greatly reduces the duty cycle, reduces development cost.
In addition, the optimization method of above-mentioned car storage battery rack according to the present invention, can also have following additional skill
Art feature：
Further, described the step of being optimized by optistruct model to the battery stand, includes：
Define the design variable of topological optimization；
The response of definition optimization is quality mass；
Definition maximum stress stress is constraint condition；
It carries out optistruct and optimizes analytical calculation, obtain optimum results to the end.
Further, the described model data is imported into Hypermesh carries out grid dividing, establishes finite element meter
Calculate model the step of include：
The material of each components and each is set in the battery stand according to the practical structures of the battery stand
From connection relationship, while the interval range of the frequency to be investigated is set.
Further, the described limited element calculation model is imported into ANSYS carries out model analysis, obtains the storage
The step of maximum stress value of battery bracket includes：
Using ANSYS software to the finite element model loading condition, go forward side by side advance luggage match, parameter setting, load and
It solves, obtains the maximum stress value of the battery stand.
Further, it is described judge the step of whether maximum stress value reaches yield limit after, the method is also
Including：
If the maximum stress value reaches the yield limit, point that the battery stand has been optimum structure is exported
Analyse result.
It is another object of the present invention to the optimization systems for proposing a kind of car storage battery rack, to solve work on hand
Period, problem at high cost.
The optimization system of the car storage battery rack provided according to the present invention, including：
Module is obtained, for obtaining the model data of battery stand；
Module is established, grid dividing is carried out for the model data to be imported into Hypermesh, establishes finite element meter
Calculate model；
Analysis module carries out model analysis for the limited element calculation model to be imported into ANSYS, obtains the storage
The maximum stress value of battery bracket；
Judgment module, for judging whether the maximum stress value reaches yield limit；
Optimization module, if being not up to yield limit for the maximum stress value, by optistruct model to institute
It states battery stand to optimize, to realize lightweight.
The optimization system of the car storage battery rack provided according to the present invention obtains battery branch by obtaining module first
The model data of frame, then establishes module model data is imported into Hypermesh and carry out grid dividing, establishes finite element meter
Model is calculated, then model analysis is carried out by analysis module, the maximum stress value of battery stand is obtained, if judgment module determines
Maximum stress value is not up to yield limit, then optimization module carries out the battery stand by optistruct model excellent
Change, completely new design and optimal scheme, topological optimization can be provided for designer by carrying out topological optimization using optistruc
Thought based on conceptual design can carry out the optimization of pattern, quality under the premise of meeting intensity, reach light-weighted mesh
, the duty cycle is greatly reduced, development cost is reduced.
In addition, the optimization system of above-mentioned car storage battery rack according to the present invention, can also have following additional skill
Art feature：
Further, the optimization module includes：
First definition unit, for defining the design variable of topological optimization；
Second definition unit, the response for defining optimization are quality mass；
Third definition unit is constraint condition for defining maximum stress stress；
Analytical calculation unit obtains optimum results to the end for carrying out optistruct optimization analytical calculation.
Further, the module of establishing is specifically used for：
The material of each components and each is set in the battery stand according to the practical structures of the battery stand
From connection relationship, while the interval range of the frequency to be investigated is set.
Further, the analysis module is specifically used for：
Using ANSYS software to the finite element model loading condition, go forward side by side advance luggage match, parameter setting, load and
It solves, obtains the maximum stress value of the battery stand.
Further, the system also includes：
Output module has exported the battery stand if reaching the yield limit for the maximum stress value
It is the analysis result of optimum structure.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or embodiment through the invention is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the embodiment of the present invention are from the description of the embodiment in conjunction with the following figures
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the flow chart of the optimization method of car storage battery rack according to a first embodiment of the present invention；
Fig. 2 is the structural block diagram of the optimization system of car storage battery rack according to a second embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the optimization method for the car storage battery rack that first embodiment of the invention proposes, including following step
Suddenly：
S101 obtains the model data of battery stand；
Wherein, which is, for example, CAD model data.
The model data imported into Hypermesh and carries out grid dividing, establishes limited element calculation model by S102；
Wherein, need to set the material of each components in the battery stand according to the practical structures of the battery stand
Material and respective connection relationship, while the interval range of the frequency to be investigated is set.
The limited element calculation model imported into ANSYS and carries out model analysis by S103, obtains the battery stand
Maximum stress value；
Wherein, it needs to go forward side by side to the finite element model loading condition using ANSYS software and advances that luggage is matched, parameter is set
It sets, load and solves, obtain the maximum stress value of the battery stand, the maximum stress value of the battery stand obtained
It such as is specifically 112MP.
S104, judges whether the maximum stress value reaches yield limit；
Wherein, yield limit is, for example, 178MP.
S105, if it is not, then being optimized by optistruct model to the battery stand, to realize lightweight.
Wherein, since maximum stress value is not up to yield limit, illustrate the lightweight space for having certain, specifically, step
S105 may include：
Define the design variable of topological optimization；
The response of definition optimization is quality mass；
Definition maximum stress stress is constraint condition；
It carries out optistruct and optimizes analytical calculation, obtain optimum results to the end.
By taking hypermesh as an example, Analysis- can be selected in the shortcut panel of hypermesh first
Optimization-topology defines the design variable of topological optimization, selects creat sub-panel, clicks top tool column
Comp：Shells is selected, type is selected：Pshell clicks desvar=, inputs shells, and press enter, confirms base
Thickness is 0, clicks creat and return returns to optimization panel.
It then is response by quality definition：It clicks responses=and inputs mass, by response type：It is placed in
Mass, confirmation response type switch are set as total, click creat.
Again stress is defined as responding：It clicks response=and inputs stress, by response type：It is placed in
Static stress clicks return twice, returns to optimization panel
Finally optimize calculating：Optistruct is selected on the analysis page, is submitted and is calculated.
In the present embodiment, after step S105, the method can also include：
If the maximum stress value reaches the yield limit, point that the battery stand has been optimum structure is exported
Analyse result.
According to the optimization method of car storage battery rack provided in this embodiment, the pattern number of battery stand is obtained first
According to then model data is imported into Hypermesh and carries out grid dividing, establishes limited element calculation model, then carry out mode
Analysis, obtains the maximum stress value of battery stand, if maximum stress value is not up to yield limit, passes through optistruct mould
Type optimizes the battery stand, can be provided using optistruc progress topological optimization for designer completely new
Design and optimal scheme, thought of the topological optimization based on conceptual design can carry out pattern, matter under the premise of meeting intensity
The optimization of amount reaches light-weighted purpose, greatly reduces the duty cycle, reduces development cost.
Referring to Fig. 2, based on the same inventive concept, car storage battery rack that the second embodiment of the present invention provides it is excellent
Change system, including：
Module 10 is obtained, for obtaining the model data of battery stand；
Module 20 is established, grid dividing is carried out for the model data to be imported into Hypermesh, establishes finite element
Computation model；
Analysis module 30 carries out model analysis for the limited element calculation model to be imported into ANSYS, obtains described
The maximum stress value of battery stand；
Judgment module 40, for judging whether the maximum stress value reaches yield limit；
Optimization module 50 passes through optistruct model pair if being not up to yield limit for the maximum stress value
The battery stand optimizes, to realize lightweight.
In the present embodiment, the optimization module 50 includes：
First definition unit 501, for defining the design variable of topological optimization；
Second definition unit 502, the response for defining optimization are quality mass；
Third definition unit 503 is constraint condition for defining maximum stress stress；
Analytical calculation unit 504 obtains optimum results to the end for carrying out optistruct optimization analytical calculation.
In the present embodiment, the module 20 of establishing is specifically used for：
The material of each components and each is set in the battery stand according to the practical structures of the battery stand
From connection relationship, while the interval range of the frequency to be investigated is set.
In the present embodiment, the analysis module 30 is specifically used for：
Using ANSYS software to the finite element model loading condition, go forward side by side advance luggage match, parameter setting, load and
It solves, obtains the maximum stress value of the battery stand.
In the present embodiment, the system also includes：
Output module 60 exports the battery stand if reaching the yield limit for the maximum stress value
It has been the analysis result of optimum structure.
The optimization system of the car storage battery rack provided according to the present invention obtains battery branch by obtaining module first
The model data of frame, then establishes module model data is imported into Hypermesh and carry out grid dividing, establishes finite element meter
Model is calculated, then model analysis is carried out by analysis module, the maximum stress value of battery stand is obtained, if judgment module determines
Maximum stress value is not up to yield limit, then optimization module carries out the battery stand by optistruct model excellent
Change, completely new design and optimal scheme, topological optimization can be provided for designer by carrying out topological optimization using optistruc
Thought based on conceptual design can carry out the optimization of pattern, quality under the premise of meeting intensity, reach light-weighted mesh
, the duty cycle is greatly reduced, development cost is reduced.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized：With for realizing the logic gates of logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of optimization method of car storage battery rack, which is characterized in that including：
Obtain the model data of battery stand；
The model data is imported into Hypermesh and carries out grid dividing, establishes limited element calculation model；
The limited element calculation model is imported into ANSYS and carries out model analysis, show that the maximum of the battery stand is answered
Force value；
Judge whether the maximum stress value reaches yield limit；
If it is not, then being optimized by optistruct model to the battery stand, to realize lightweight.
2. the optimization method of car storage battery rack according to claim 1, which is characterized in that described to pass through
The step of optistruct model optimizes the battery stand include：
Define the design variable of topological optimization；
The response of definition optimization is quality mass；
Definition maximum stress stress is constraint condition；
It carries out optistruct and optimizes analytical calculation, obtain optimum results to the end.
3. the optimization method of car storage battery rack according to claim 1, which is characterized in that described by the pattern number
The step of carrying out grid dividing according to importeding into Hypermesh, establish limited element calculation model include：
The material of each components and respective is set in the battery stand according to the practical structures of the battery stand
Connection relationship, while the interval range of the frequency to be investigated is set.
4. the optimization method of car storage battery rack according to claim 1, which is characterized in that described by the finite element
Computation model imported into ANSYS the step of carrying out model analysis, obtaining the maximum stress value of the battery stand and includes：
Using ANSYS software to the finite element model loading condition, go forward side by side advance luggage match, parameter setting, load and solution,
Obtain the maximum stress value of the battery stand.
5. the optimization method of car storage battery rack according to claim 1, which is characterized in that the judgement maximum
After the step of whether stress value reaches yield limit, the method also includes：
If the maximum stress value reaches the yield limit, the analysis knot that the battery stand has been optimum structure is exported
Fruit.
6. a kind of optimization system of car storage battery rack, which is characterized in that including：
Module is obtained, for obtaining the model data of battery stand；
Module is established, grid dividing is carried out for the model data to be imported into Hypermesh, establishes FEM calculation mould
Type；
Analysis module carries out model analysis for the limited element calculation model to be imported into ANSYS, obtains the battery
The maximum stress value of bracket；
Judgment module, for judging whether the maximum stress value reaches yield limit；
Optimization module, if being not up to yield limit for the maximum stress value, by optistruct model to the storage
Battery bracket optimizes, to realize lightweight.
7. the optimization system of car storage battery rack according to claim 6, which is characterized in that the optimization module packet
It includes：
First definition unit, for defining the design variable of topological optimization；
Second definition unit, the response for defining optimization are quality mass；
Third definition unit is constraint condition for defining maximum stress stress；
Analytical calculation unit obtains optimum results to the end for carrying out optistruct optimization analytical calculation.
8. the optimization system of car storage battery rack according to claim 6, which is characterized in that described to establish module specific
For：
The material of each components and respective is set in the battery stand according to the practical structures of the battery stand
Connection relationship, while the interval range of the frequency to be investigated is set.
9. the optimization system of car storage battery rack according to claim 6, which is characterized in that the analysis module is specific
For：
Using ANSYS software to the finite element model loading condition, go forward side by side advance luggage match, parameter setting, load and solution,
Obtain the maximum stress value of the battery stand.
10. the optimization system of car storage battery rack according to claim 6, which is characterized in that the system also includes：
Output module, if reaching the yield limit for the maximum stress value, exporting the battery stand has been most
The analysis result of excellent structure.
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| CN112507502A (en) * | 2019-08-26 | 2021-03-16 | 上海汽车集团股份有限公司 | Optimization method and device for 48V start-stop motor bracket of light-mixing engine |
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| CN109635402A (en) * | 2018-12-04 | 2019-04-16 | 东风汽车集团有限公司 | A kind of method for arranging of automobile position while welding |
| CN110162828A (en) * | 2019-03-29 | 2019-08-23 | 江铃汽车股份有限公司 | A kind of battery bag support light-weight design method |
| CN112507502A (en) * | 2019-08-26 | 2021-03-16 | 上海汽车集团股份有限公司 | Optimization method and device for 48V start-stop motor bracket of light-mixing engine |
| CN112507502B (en) * | 2019-08-26 | 2024-03-12 | 上海汽车集团股份有限公司 | Optimization method and device for 48V power-on and power-off support of light hybrid engine |
| CN110795880A (en) * | 2019-10-29 | 2020-02-14 | 神华神东煤炭集团有限责任公司 | Design method of support type stack type support, storage medium and electronic equipment |
| CN110795880B (en) * | 2019-10-29 | 2023-04-28 | 神华神东煤炭集团有限责任公司 | Design method of support type pile type bracket, storage medium and electronic equipment |
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