CN106611228A - Optimization method and optimization system for automobile body material - Google Patents
Optimization method and optimization system for automobile body material Download PDFInfo
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Abstract
The invention provides an optimization method for an automobile body material. The optimization method for the automobile body material comprises the steps of obtaining material performance evaluation index and part performance evaluation index, and pre-defining a rank division range of the material performance evaluation index and the part performance evaluation index; establishing an initial information sheet of to-be-optimized parts according to design parameters and a material list of the to-be-optimized parts, wherein the initial information sheet comprises part names and material names; obtaining a grading result corresponding to the material performance evaluation index and the part performance evaluation index according to the part names and the material names in the initial information sheet; and comparing the material performance evaluation index and the part performance evaluation index according to an optimization target under the premise of not influencing design performance of the parts so as to obtain an optimization scheme with better material performance evaluation index and the part performance evaluation index. The invention also provides a selection and evaluation apparatus for the automobile body material, wherein the selection and evaluation apparatus comprises a pre-defining module, an initial information establishing module, a rank grading module and a screening module.
Description
Technical field
The present invention relates to automotive field, more particularly to a kind of body of a motor car optimization of material method and optimization system.
Background technology
With the improvement of people's living standards and the fast development of auto industry, automobile is more and more applied in daily life.In the continuous evolution of automobile industry, people also increasingly pay attention to except paying close attention to the factors such as quality, the function of automobile, the safety to body of a motor car.
Body of a motor car generally selects baking hardening (BH) steel plate, gapless atomic steel (Interstitial-Free Steel, IF steel) plate, low-alloy high-strength steel plate, dual phase sheet steel, phase-change induced plastic (TRIP) steel plate, hot forming high-strength steel sheet and shock-resisted complex steel sheet etc., which improves can body structure intensity, rigidity, quality mitigates, noise is reduced, the safety of vehicle body is improved.As steel plate species is more, each steel mill's actual product performance is variant, and domestic independent brand auto vendor practical application experience is relatively short of, therefore, one is not up to the present also formed compared with system optimization method.
The content of the invention
In view of this, it is necessary to provide a kind of comparison system, simple body of a motor car optimization of material method and optimization system, to solve deficiency of the prior art.
The present invention provides a kind of body of a motor car optimization of material method, and the body of a motor car optimization of material method includes step：Obtain material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope for predefining the material property evaluation index and the part Performance Evaluating Indexes；The initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized, the initial information table includes part name and title material；According to the material property evaluation index corresponding with title material acquisition of part name described in the initial information table and the rating result of the part Performance Evaluating Indexes；On the premise of Element Design performance is not affected, according to optimization purpose, compare the material property evaluation index and the part Performance Evaluating Indexes, draw the prioritization scheme with the more excellent material property evaluation index and the part Performance Evaluating Indexes.
Further, after the step of design parameter and BOM according to part to be optimized creates the initial information table of the part to be optimized, also including step：Information in the initial information table is carried out checking confirmation with the information in CAD.
Further, the material property evaluation index is multiple, including the strength of materials, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and price index.
Further, the partition of the level scope of the material property evaluation index is divided into seven ranks.
Further, the part Performance Evaluating Indexes are multiple, including part strength, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and cost association degree.
Further, the partition of the level scope of the part Performance Evaluating Indexes is divided into seven ranks.
Further, the initial information table also includes Part No., thickness, quantity and piece weight.
Also a kind of body of a motor car optimization of material system of the present invention, the body of a motor car optimization of material system include：Predefined module, for obtaining material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope for predefining the material property evaluation index and the part Performance Evaluating Indexes；Initial information creation module, creates the initial information table of the part to be optimized for the design parameter according to part to be optimized and BOM；Rank grading module, for the rating result according to the material property evaluation index corresponding with title material acquisition of part name described in the initial information table and the part Performance Evaluating Indexes；And screening module, for on the premise of Element Design performance is not affected, according to optimization purpose, compare the material property evaluation index and the part Performance Evaluating Indexes, draw the prioritization scheme with the more excellent material property evaluation index and the part Performance Evaluating Indexes.
Further, the selection evaluating apparatus of the body of a motor car material also include review module, for carrying out checking confirmation with the information in CAD to the initial information.
The invention has the beneficial effects as follows, there is provided a kind of comparison system, simple body of a motor car optimization of material method and optimization system, solve deficiency of the prior art.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, and in order to the above and other objects, features and advantages of the present invention can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Description of the drawings
Fig. 1 is the flow chart of the body of a motor car optimization of material method of the present invention.
Fig. 2 is the radar comparison diagram that rear skirtboard inner panel optimizes forward and backward material property.
Fig. 3 is the radar comparison diagram that rear skirtboard inner panel optimizes forward and backward part performance.
Fig. 4 is the block architecture diagram of body of a motor car optimization of material system provided in an embodiment of the present invention.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment, structure, feature and its effect to the present invention, describe in detail as after.
Fig. 1 is the flow chart of the body of a motor car optimization of material method of the present invention, shown in Figure 1, and the body of a motor car optimization of material method that the present invention is provided includes：
Step S1：Obtain material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope of predefined material property evaluation index and part Performance Evaluating Indexes.
The material property evaluation index of body of a motor car includes multiple indexs such as the strength of materials, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and price index.Which is defined as follows：
Strength of materials σm：The yield strength of its numerical value material represents, represents yield limit of the metal material when there is yield phenomenon.
Formability of materials Fm：Refer to the stamping ability occurred without fracture, local reduction and corrugation to required shape of sheet metal material.This method is only applicable to cold machine-shaping.Here with the area Fm sizes surrounded with transverse axis immediately below FLC curves as criterion, area is bigger to represent that formability is better.The acquisition of wherein FLC should meet the regulation of GB/T 24171.2.
Crash energy absorption performance AE：Car body stamping part how many ability of energy absorption during a range of collision deformation.AE∝t2σb2q, takes q=0.5 here.
Hardening capacity k：Be logarithmic strain be equal to 1.0 when true stress.K value is bigger, represents that intensity and hardness of the material after certain plastic deformation are higher.Here hardening capacity k value meet Hollomon relational expressions σ it is true=k ε n.
Collision-free deformation performance P：Vehicle body sheet metal material resists the ability of plastic deformation in collision process.This Capability Requirement parts has higher modulus value.P∝tEDP, wherein 1/ED=1/E+1/ES, ES=k ε n-1, take p=1, E hereSPoint averagely takes 50 points between range of strain 0.02≤ε≤1, calculates respectively, so as to obtain 50 tEDThe meansigma methodss of m values.
Price index Cm：The price of a certain trade mark material and Baosteel material trademark DC01, thickness 1.0mm, the ratio of the price of width 1250mm specifications are defined as the price index of this material.Wherein the price of DC01 is with the of that month base price of the Baosteel correspondence trade mark.
Remarks：σ 0.2 is yield strength, and σ b are tensile strength, and σ is really true stress, and ε is logarithmic strain, and n is strain hardening exponent, and t is sheet metal thickness, EDFor live load modulus, E is elastic modelling quantity, ESFor secant modulus, p, q are constant.
The part Performance Evaluating Indexes of body of a motor car include multiple indexs such as part strength, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and cost association degree.Its definition difference is as follows：
Part strength σeq：According to the maximum equivalent that VonMises yield criterions, car body stamping part are subject under design requirement operating mode.
Collision-free deforms Br：The maximum effective plasticstrain of collision rear single part.
Crash energy absorption W：The interior percentage ratio that can account for the total interior energy that whole vehicle body is consumed of vehicle body single part consumption in collision process.
Stiffness Sensitivity St：Under certain loading condition, the change of vehicle body single part material is to vehicle body entirety and the influence degree of local buckling rigidity or torsional rigidity.
Part forming Fp：Under conditions of a locking equipment, material and working ability, the complexity of qualified bodywork parts is processed into by raw material.
Cost association degree Cp：The material cost of single part accounts for the ratio of body material totle drilling cost.
The material property evaluation index of body of a motor car is divided into seven ranks, certain scope corresponding to each rank of each material property evaluation index, specifically, the numbering of seven ranks is represented using 1,2,3,4,5,6,7, in addition to intensity index unit is represented with MPa (MPa), other indexs do not consider unit.Ginseng is shown in Table 1.
The partition of the level standard of 1 material property evaluation index of table
The part Performance Evaluating Indexes of body of a motor car are divided into seven ranks, and corresponding to each rank of each part Performance Evaluating Indexes, certain scope, specifically, represents the numbering of seven ranks using 1,2,3,4,5,6,7.Ginseng is shown in Table 2.
The partition of the level standard of 2 part Performance Evaluating Indexes of table
Step S2：The initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized.
Part initial information table to be optimized is created according to vehicle body design parameter and BOM (Bill of Material, BOM), initial information table includes Part No., part name, title material, thickness, quantity and piece weight.
Step S3：Information in the initial information table of part to be optimized is carried out checking confirmation with the information in CAD.
Due to BOM data and CAD (Computer Aided Design, computer-aided design) the nonsynchronous problem of data renewal, often there are some discrepancy in the two, therefore, information in the information and CAD such as the material in existing BOM data, thickness and piece weight is compared and is checked, the specifying information in initial information table is checked and confirms, the specifying information includes the 3D data and the essential information of material of part, and this step is only one and checks the process checked.
Step S4：The rating result of respective material Performance Evaluating Indexes and part Performance Evaluating Indexes is obtained according to the part name in initial information table and title material.
According to part name and title material in initial information table, according to the partition of the level standard of 1 material property evaluation index of table, the rating result of the material property evaluation indexes such as the strength of materials, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and the price index of the used material of part to be optimized in initial information table is obtained.
According to part name and title material in initial information table, according to the partition of the level standard of 2 part Performance Evaluating Indexes of table, the rating result of the part Performance Evaluating Indexes such as part strength, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and the cost association degree of part to be optimized in initial information table is obtained.
Step S5：On the premise of Element Design performance is not affected, according to optimization purpose, compare material property evaluation index and part Performance Evaluating Indexes, draw the prioritization scheme with more excellent material property evaluation index and part Performance Evaluating Indexes.
On the premise of Element Design performance is not affected, according to optimization purpose, constant, change index is kept in determining part Performance Evaluating Indexes and material property evaluation index, the initial material property evaluation index of comparison part to be optimized and part Performance Evaluating Indexes, draw the prioritization scheme with more excellent material property evaluation index and part Performance Evaluating Indexes.
Body of a motor car optimization of material method, can not only optimize a bodywork parts, it is also possible to while the multiple bodywork parts of optimization.
Embodiment one：The rear skirtboard inner panel optimization of material method of body of a motor car
Skirtboard inner panel is optimized for the purpose of loss of weight afterwards.
Step S1：Obtain material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope of predefined material property evaluation index and part Performance Evaluating Indexes.(same to foregoing teachings)
Step S2：The initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized.
In the present embodiment, the initial information of part to be optimized-rear skirtboard inner panel, referring to table 3.
The initial information table of skirtboard inner panel after table 3
Step S3：Information in the initial information table of part to be optimized is carried out checking confirmation with the information in CAD.
As BOM data updates nonsynchronous problem with CAD data, often there are some discrepancy in the two, therefore, information in the information and CAD such as material, thickness and piece weight to part to be optimized in existing BOM data-rear skirtboard inner panel is compared and checks, checks and confirm the specifying information in initial information table.
Step S4：The rating result of respective material Performance Evaluating Indexes and part Performance Evaluating Indexes is obtained according to the part name in initial information table and title material.
According to part name and title material in initial information table, according to the partition of the level standard of 1 material property evaluation index of table, the rating result of the material property evaluation indexes such as the strength of materials, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and the price index of the used material of part to be optimized-rear skirtboard inner panel in initial information table is obtained, rating result is shown in Table 4.
Material property rating result before the optimization of skirtboard inner panel after table 4
According to part name and title material in initial information table, according to the partition of the level standard of 2 part Performance Evaluating Indexes of table, the rating result of the part Performance Evaluating Indexes such as part strength, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and the cost association degree of part to be optimized-rear skirtboard inner panel in initial information table is obtained, rating result is shown in Table 5.
Part performance rating result before the optimization of skirtboard inner panel after table 5
Step S5：On the premise of Element Design performance is not affected, according to optimization purpose, compare material property evaluation index and part Performance Evaluating Indexes, draw the prioritization scheme with more excellent material property evaluation index and part Performance Evaluating Indexes.
The design performance of skirtboard inner panel, mainly prevents side impact from deforming afterwards, and its requirement to part strength, Collision-free deformation performance is higher, and relatively low to other index requests.
According to the optimization purpose of loss of weight, after not affecting on the premise of skirtboard inner panel design performance, that is part strength, the index grading of Collision-free deformation performance is held essentially constant, weight declines, other indexs (other part Performance Evaluating Indexes and material property evaluation index) grading is suitable, carry out screening the prioritization scheme drawn with more excellent material property evaluation index and part Performance Evaluating Indexes in data base, prioritization scheme is shown in Table 6, what the material property grading of prioritization scheme and part performance were graded the results are shown in Table 7 and table 8, performance change situation before and after the optimization of skirtboard inner panel is shown in Table 9 afterwards, before can also be for rear skirtboard inner panel optimization, material property and part performance afterwards makes radar comparison diagram respectively, referring to Fig. 2, shown in Fig. 3.
Skirtboard inner panel prioritization scheme after table 6
| Part name | Title material | Thickness (mm) | Weight (kg) | Quantity |
| Skirtboard inner panel afterwards | DX420/780DPD+ZF | 1.80 | 2.325 | 1 |
Material property rating result after the optimization of skirtboard inner panel after table 7
Part performance rating result after the optimization of skirtboard inner panel after table 8
Performance change situation after table 9 before and after the optimization of skirtboard inner panel
Therefore, the material DX420/780DPD+ZF t1.8 that rear skirtboard inner panel can adopt intensity higher reach the purpose of loss of weight to replace DX340LAD+ZF t2.0.
Embodiment two：The left front girder back plate optimization of material method of body of a motor car
Left front girder back plate is optimized for the purpose of loss of weight.
Step S1：Obtain material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope of predefined material property evaluation index and part Performance Evaluating Indexes.(same to foregoing teachings)
Step S2：The initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized.
In the present embodiment, the initial information of part to be optimized-left front girder back plate, referring to table 10.
10 left front girder back plate initial information table of table
Step S3：Information in the initial information table of part to be optimized is carried out checking confirmation with the information in CAD.
As BOM data updates nonsynchronous problem with CAD data, often there are some discrepancy in the two, therefore, information in the information and CAD such as the material of part to be optimized-left front girder back plate, thickness and piece weight in existing BOM data is compared and is checked, the specifying information in initial information table is checked and confirm.
Step S4：The rating result of respective material Performance Evaluating Indexes and part Performance Evaluating Indexes is obtained according to the part name in initial information table and title material.
According to part name and title material in initial information table, according to the partition of the level standard of 1 material property evaluation index of table, the rating result of the material property evaluation indexes such as the strength of materials, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and the price index of the used material of part-left front girder back plate to be optimized in initial information table is obtained, rating result is shown in Table 11.
Material property rating result before the optimization of 11 left front girder back plate of table
According to part name and title material in initial information table, according to the partition of the level standard of 2 part Performance Evaluating Indexes of table, the rating result of the part Performance Evaluating Indexes such as part strength, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and the cost association degree of part to be optimized-left front girder back plate in initial information table is obtained, rating result is shown in Table 12.
Part performance rating result before the optimization of 12 left front girder back plate of table
Step S5：On the premise of Element Design performance is not affected, according to optimization purpose, compare material property evaluation index and part Performance Evaluating Indexes, draw the prioritization scheme with more excellent material property evaluation index and part Performance Evaluating Indexes.
Left front girder back plate is arranged at front longitudinal back segment, the design performance of left front girder back plate, mainly Collision-free deform, while with certain strength and stiffness, its requirement to collision energy absorption, part strength, Collision-free deformation performance is higher, and relatively low to other index requests.
According to the optimization purpose of loss of weight，On the premise of left front girder back plate design performance is not affected，That is crash energy absorption performance、Part strength、The index grading of Collision-free deformation performance is held essentially constant，Weight declines，Other indexs (other part Performance Evaluating Indexes and material property evaluation index) grading is suitable，Carry out screening the prioritization scheme drawn with more excellent material property evaluation index and part Performance Evaluating Indexes in data base，According to the optimization purpose of loss of weight，On the premise of left front girder back plate design performance is not affected，That is crash energy absorption performance、Part strength、The index grading of Collision-free deformation performance is held essentially constant，Weight declines，Other indexs (other part Performance Evaluating Indexes and material property evaluation index) grading is suitable，Screening is carried out in data base and draws prioritization scheme，Prioritization scheme is shown in Table 13，What the material property grading of prioritization scheme and part performance were graded the results are shown in Table 14 and table 15，Performance change situation before and after the optimization of left front girder back plate is shown in Table 16.
13 left front girder back plate prioritization scheme of table
| Part name | Title material | Thickness (mm) | Weight (kg) | Quantity |
| Left front girder back plate | DX420LAD+ZF | 1.80 | 0.73 | 1 |
Material property rating result after the optimization of 14 left front girder back plate of table
Part performance rating result after the optimization of 15 left front girder back plate of table
Situation of change before and after the optimization of 16 left front girder back plate of table
Therefore, left front girder back plate can adopt that intensity slightly be improved and the thinning material DX420LAD+ZF t1.8 of thickness reach the purpose of loss of weight to replace DX340LAD+ZF t2.0.
Embodiment three：Outside plate optimization of material method after the left front girder of body of a motor car
After left front girder, outside plate is optimized for the purpose of reduces cost.
Step S1：Obtain material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope of predefined material property evaluation index and part Performance Evaluating Indexes.(same to foregoing teachings)
Step S2：The initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized.
In the present embodiment, the initial information of outside plate after part-left front girder to be optimized, referring to table 17.
The initial information table of outside plate after 17 left front girder of table
| Part name | Title material | Thickness (mm) | Weight (kg) | Quantity |
| Outside plate after left front girder | DX56D+ZF | 1.20 | 1.975 | 1 |
Step S3：Information in the initial information table of part to be optimized is carried out checking confirmation with the information in CAD.
As BOM data updates nonsynchronous problem with CAD data, often there are some discrepancy in the two, therefore, information in the information and CAD such as the material of outside plate, thickness and piece weight after part-left front girder to be optimized in existing BOM data is compared and is checked, the specifying information in initial information table is checked and confirm.
Step S4：The rating result of respective material Performance Evaluating Indexes and part Performance Evaluating Indexes is obtained according to the part name in initial information table and title material.
According to part name and title material in initial information table, according to the partition of the level standard of 1 material property evaluation index of table, the rating result of the material property evaluation index such as the strength of materials of the used material of outside plate, formability of materials, crash energy absorption performance, hardening capacity, Collision-free deformation performance and price index after part-left front girder to be optimized in initial information table is obtained, rating result is shown in Table 18.
Material property rating result before outside plate optimization after 18 left front girder of table
According to part name and title material in initial information table, according to the partition of the level standard of 2 part Performance Evaluating Indexes of table, the rating result of the part Performance Evaluating Indexes such as the part strength of outside plate, Collision-free deformation, crash energy absorption, Stiffness Sensitivity, part forming and cost association degree after part-left front girder to be optimized in initial information table is obtained, rating result is shown in Table 19.
Part performance rating result before outside plate optimization after 19 left front girder of table
Step S5：On the premise of Element Design performance is not affected, according to optimization purpose, compare material property evaluation index and part Performance Evaluating Indexes, draw the prioritization scheme with more excellent material property evaluation index and part Performance Evaluating Indexes.
After left front girder, outside plate belongs to general structure part, and after left front girder, the design performance of outside plate, only there are certain requirements to rigidity, and design of part is fairly simple, therefore material thickness can not change, and formability of materials constant or slightly can be reduced.
According to the optimization purpose of loss of weight, after left front girder is not affected on the premise of outside plate design performance, i.e. material thickness is constant, formability of materials constant or slightly can be reduced, prices, other indexs (other part Performance Evaluating Indexes and material property evaluation index) are graded constant or suitable, carry out screening the prioritization scheme drawn with more excellent material property evaluation index and part Performance Evaluating Indexes in data base, prioritization scheme is shown in Table 20, what the material property grading of prioritization scheme and part performance were graded the results are shown in Table 21 and table 22, performance change situation after left front girder before and after outside plate optimization is shown in Table 23.
Outside plate prioritization scheme after 20 left front girder of table
| Part name | Title material | Thickness (mm) | Weight (kg) | Quantity |
| Outside plate after left front girder | DX54D+ZF | 1.20 | 1.975 | 1 |
Material property rating result after outside plate optimization after 21 left front girder of table
Part performance rating result after outside plate optimization after 22 left front girder of table
Situation of change after 23 left front girder of table before and after outside plate optimization
Therefore, after left front girder, outside plate can adopt less expensive material DX54D+ZF t1.2 that the purpose of cost is reduced to replace DX56D+ZF t1.2.
The invention has the beneficial effects as follows, there is provided a kind of comparison system, simple body of a motor car optimization of material method, solve deficiency of the prior art.
Fig. 4 is the block architecture diagram of body of a motor car optimization of material system provided in an embodiment of the present invention.Fig. 4 is referred to, body of a motor car optimization of material system provided in an embodiment of the present invention 400 includes：Predefined module 401, initial information creation module 402, review module 403, rank grading module 404, and screening module 405.
Specifically, module 401 is predefined, for obtaining material property evaluation index and part Performance Evaluating Indexes, and the partition of the level scope for predefining the material property evaluation index and the part Performance Evaluating Indexes.
Partition of the level module 402, creates the initial information table of the part to be optimized for the design parameter according to part to be optimized and BOM.
Review module 403, for carrying out checking confirmation with the information in CAD to the initial information.
Rank grading module 404, for the rating result according to the material property evaluation index corresponding with title material acquisition of part name described in the initial information table and the part Performance Evaluating Indexes；And
Screening module 405, for on the premise of Element Design performance is not affected, according to optimization purpose, compare the material property evaluation index and the part Performance Evaluating Indexes, draw the prioritization scheme with the more excellent material property evaluation index and the part Performance Evaluating Indexes.
The detailed workflow of the body of a motor car optimization of material system 400 provided with regard to the present invention, refers to the description above with respect to Automobile stature optimization method, and here is omitted.
The above, only it is presently preferred embodiments of the present invention, not make any pro forma restriction to the present invention, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, in the range of without departing from technical solution of the present invention, when making a little change using the technology contents of the disclosure above or be modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, according to any simple modification made to above example by the technical spirit of the present invention, equivalent variations and modification, still fall within the range of technical solution of the present invention.
Claims (9)
1. a kind of body of a motor car optimization of material method, it is characterised in that the body of a motor car optimization of material method bag
Include step：
Material property evaluation index and part Performance Evaluating Indexes are obtained, and predefines the material property evaluation and referred to
The partition of the level scope of mark and the part Performance Evaluating Indexes；
The initial information table of the part to be optimized, institute are created according to the design parameter and BOM of part to be optimized
Stating initial information table includes part name and title material；
According to the material property corresponding with title material acquisition of part name described in the initial information table
The rating result of evaluation index and the part Performance Evaluating Indexes；And
On the premise of Element Design performance is not affected, according to optimization purpose, the comparison material property evaluation index
With the part Performance Evaluating Indexes, draw with the more excellent material property evaluation index and the part performance
The prioritization scheme of evaluation index.
2. the selection evaluation methodology of body of a motor car material as claimed in claim 1, it is characterised in that described
The step of initial information table of the part to be optimized is created according to the design parameter and BOM of part to be optimized it
Afterwards, also including step：Information in the initial information table is carried out checking confirmation with the information in CAD.
3. the selection evaluation methodology of body of a motor car material as claimed in claim 1 or 2, it is characterised in that institute
Material property evaluation index is stated for multiple, including the strength of materials, formability of materials, crash energy absorption performance, hard
Change ability, Collision-free deformation performance and price index.
4. the selection evaluation methodology of body of a motor car material as claimed in claim 3, it is characterised in that the material
The partition of the level scope of material Performance Evaluating Indexes is divided into seven ranks.
5. the selection evaluation methodology of body of a motor car material as claimed in claim 1 or 2, it is characterised in that institute
It is multiple to state part Performance Evaluating Indexes, including part strength, Collision-free deformation, crash energy absorption, rigidity
Sensitivity, part forming and cost association degree.
6. the selection evaluation methodology of body of a motor car material as claimed in claim 5, it is characterised in that described zero
The partition of the level scope of part Performance Evaluating Indexes is divided into seven ranks.
7. the selection evaluation methodology of body of a motor car material as claimed in claim 1 or 2, it is characterised in that institute
Stating initial information table also includes Part No., thickness, quantity and piece weight.
8. a kind of body of a motor car optimization of material system (400), it is characterised in that the body of a motor car optimization of material
System (400) includes：
Predefined module (401), for obtaining material property evaluation index and part Performance Evaluating Indexes, and
Predefine the partition of the level scope of the material property evaluation index and the part Performance Evaluating Indexes；
Initial information creation module (402), creates for the design parameter according to part to be optimized and BOM
The initial information table of the part to be optimized；
Rank grading module (404), for according to part name and the material described in the initial information table
The rating result of the name acquiring correspondence material property evaluation index and the part Performance Evaluating Indexes；And
Screening module (405), on the premise of Element Design performance is not affected, according to optimization purpose, than
The material property evaluation index and the part Performance Evaluating Indexes, draw with the more excellent material property
The prioritization scheme of evaluation index and the part Performance Evaluating Indexes.
9. body of a motor car optimization of material system (400) as claimed in claim 8, it is characterised in that the vapour
The selection evaluating apparatus (400) of car body material also include review module (403), for the initial information
Carry out checking confirmation with the information in CAD.
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| CN201510698717.2A Pending CN106611228A (en) | 2015-10-21 | 2015-10-21 | Optimization method and optimization system for automobile body material |
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| CN108195707A (en) * | 2017-12-29 | 2018-06-22 | 大连理工大学 | The evaluation method that a kind of ultralow temperature cooling influences material mechanical performance |
| CN110704939A (en) * | 2019-08-16 | 2020-01-17 | 中信金属股份有限公司 | Material selection method and system for automobile body parts |
| CN117473801A (en) * | 2023-12-28 | 2024-01-30 | 北京新能源汽车股份有限公司 | Material selecting method and device for vehicle, electronic equipment and storage medium |
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| CN102012958A (en) * | 2010-12-29 | 2011-04-13 | 奇瑞汽车股份有限公司 | Method for designing automobile body structure layout |
| CN102945307A (en) * | 2012-11-27 | 2013-02-27 | 北京汽车股份有限公司 | Automobile chassis key structural member structure optimization design method |
| CN103902451A (en) * | 2014-03-26 | 2014-07-02 | 国家电网公司 | Intelligent electricity meter software quality evaluation method |
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| CN102012958A (en) * | 2010-12-29 | 2011-04-13 | 奇瑞汽车股份有限公司 | Method for designing automobile body structure layout |
| CN102945307A (en) * | 2012-11-27 | 2013-02-27 | 北京汽车股份有限公司 | Automobile chassis key structural member structure optimization design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108195707A (en) * | 2017-12-29 | 2018-06-22 | 大连理工大学 | The evaluation method that a kind of ultralow temperature cooling influences material mechanical performance |
| CN110704939A (en) * | 2019-08-16 | 2020-01-17 | 中信金属股份有限公司 | Material selection method and system for automobile body parts |
| CN110704939B (en) * | 2019-08-16 | 2023-03-10 | 中信金属股份有限公司 | Material selection method and system for automobile body parts |
| CN117473801A (en) * | 2023-12-28 | 2024-01-30 | 北京新能源汽车股份有限公司 | Material selecting method and device for vehicle, electronic equipment and storage medium |
| CN117473801B (en) * | 2023-12-28 | 2024-04-23 | 北京新能源汽车股份有限公司 | Material selecting method and device for vehicle, electronic equipment and storage medium |
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