CN108804776A - A kind of carbody modeling method, apparatus and equipment - Google Patents
A kind of carbody modeling method, apparatus and equipment Download PDFInfo
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- CN108804776A CN108804776A CN201810497600.1A CN201810497600A CN108804776A CN 108804776 A CN108804776 A CN 108804776A CN 201810497600 A CN201810497600 A CN 201810497600A CN 108804776 A CN108804776 A CN 108804776A
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Abstract
The application discloses a kind of carbody modeling method, apparatus and equipment, this method include：Obtain the corresponding structural design drawing of each structure position of body construction, wherein the structural design drawing has the dimension information and location information of corresponding structure position；Dimension information based on each structure position and location information splice each structural design drawing, obtain the equivalent threedimensional model of the body construction；The equivalent threedimensional model is subjected to mesh generation, obtains the finite element model of the body construction.The application can realize rapid modeling, meet to body construction fast dynamics Performance Evaluation demand.
Description
Technical field
This application involves carbody modeling fields, and in particular to a kind of carbody modeling method, apparatus and equipment.
Background technology
In the various vehicles, such as the design and manufacture of subway, high ferro, body construction that car body is modeled
Model can be used in assessing the performance of the various aspects of the car body of design.For example, the body construction in subway designs rank
Section, can be realized by the body construction model of subway and be assessed its mechanical property.
Currently, main using ripe business finite element analysis software both at home and abroad, as Ansys, Nastran,
Hyperworks etc. realizes modeling to car body, it is advantageous that simulation result it is fine, closer to actual conditions, but it is needed
The a large amount of modeling and simulation time is expended, the design cycle is dramatically increased, leads to that quickly commenting to car body mechanical property cannot be met
Estimate demand.
So there is an urgent need for a kind of methods that can fast implement carbody modeling at present, shorten modeling period, to meet to vehicle
The rapid evaluation demand of mechanics performance.
Invention content
To solve the above problems, this application provides a kind of carbody modeling method, apparatus and equipment, specific technical solution is such as
Under：
In a first aspect, this application provides a kind of carbody modeling method, the method includes：
Obtain the corresponding structural design drawing of each structure position of body construction, wherein the structural design drawing tool
There are the dimension information and location information of corresponding structure position；
Dimension information based on each structure position and location information splice each structural design drawing, obtain institute
State the equivalent threedimensional model of body construction；
The equivalent threedimensional model is subjected to mesh generation, obtains the finite element model of the body construction.
Optionally, the body construction includes stainless steel Car Body Structure in Subway.
Optionally, the structure position includes the corrugated board structures of floor and roof, described to obtain each of body construction
Before the corresponding structural design drawing of structure position, further include：
The corrugated board structures on the floor and roof are equivalent to orthotropic plate and shell structure.
Optionally, the structure position includes slim-lined construction, and each structure position for obtaining body construction is right respectively
Before the structural design drawing answered, further include：
The slim-lined construction is equivalent to beam column construction.
Optionally, the method further includes：
It receives and the adjustment of the dimension information and/or location information at any structure position is operated, and utilize the ruler after adjustment
The dimension information and/or location information of the corresponding structural design drawing of structure position described in very little information and/or updating location information.
Optionally, the method further includes：
Using the finite element model of the body construction, fast dynamics Performance Evaluation is carried out to the body construction.
Second aspect, present invention also provides a kind of carbody modeling device, described device includes：
Acquisition module, the corresponding structural design drawing of each structure position for obtaining body construction, wherein described
Structural design drawing has the dimension information and location information of corresponding structure position；
Concatenation module, be used for dimension information and location information based on each structure position, by each structural design drawing into
Row splicing, obtains the equivalent threedimensional model of the body construction；
Division module obtains the finite element of the body construction for the equivalent threedimensional model to be carried out mesh generation
Model.
Optionally, the body construction includes stainless steel Car Body Structure in Subway.
Optionally, the structure position includes the corrugated board structures of floor and roof, and described device further includes：
First equivalent modules, for the corrugated board structures on the floor and roof to be equivalent to orthotropic plate shell
Structure.
Optionally, the structure position includes slim-lined construction, and described device further includes：
Second equivalent modules, for the slim-lined construction to be equivalent to beam column construction.
Optionally, described device further includes：
Update module, for receiving the adjustment operation to the dimension information and/or location information at any structure position, and profit
The dimension information of the corresponding structural design drawing of structure position described in the dimension information and/or updating location information after adjustment and/
Or location information.
Optionally, described device further includes：
Evaluation module carries out fast dynamics for the finite element model using the body construction to the body construction
Performance Evaluation.
The third aspect, present invention also provides a kind of carbody modeling equipment, the equipment includes memory and processor,
Said program code is transferred to the processor by the memory for storing program code；
The processor is used to, according to the instruction in said program code, execute carbody modeling side described in any one of the above embodiments
Method.
Carbody modeling method provided by the present application, can utilize parametric modeling method fast implement emulation to car body and
Modeling, specifically, obtaining the corresponding structural design drawing of each structure position point of body construction first, wherein Ge Gejie
Structure design drawing has the dimension information and location information of corresponding structure position, secondly, the size letter based on each structure position
Breath and location information, each structural design drawing is spliced, the equivalent threedimensional model of body construction is obtained, finally, will be equivalent
Threedimensional model carries out mesh generation, obtains the finite element model of body construction.The application can realize rapid modeling, meet to vehicle
Body structure fast dynamics Performance Evaluation demand.
Description of the drawings
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow chart of carbody modeling method provided by the embodiments of the present application；
Fig. 2 is a kind of corrugated board structures schematic diagram provided by the embodiments of the present application；
Fig. 3 is a kind of beam column construction schematic diagram provided by the embodiments of the present application；
Fig. 4 is a kind of structural design drawing of the chassis of body construction provided by the embodiments of the present application；
Fig. 5 is a kind of structural design drawing of the side wall of body construction provided by the embodiments of the present application；
Fig. 6 is a kind of structural design drawing of the roof of car body framework provided by the embodiments of the present application；
Fig. 7 is a kind of structural design drawing of the headwall of body construction provided by the embodiments of the present application；
Fig. 8 is a kind of schematic diagram of the equivalent threedimensional model of Car Body Structure in Subway provided by the embodiments of the present application；
Fig. 9 is a kind of schematic diagram of the finite element model of Car Body Structure in Subway provided by the embodiments of the present application；
Figure 10 is a kind of structural schematic diagram of carbody modeling device provided by the embodiments of the present application；
Figure 11 provides a kind of structural schematic diagram of carbody modeling equipment for the embodiment of the present application.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Since realization is to the fast dynamics Performance Evaluation of body construction, need to carry out rapid modeling to body construction, to
The finite element model of body construction is obtained within a short period of time, for carrying out fast dynamics Performance Evaluation to body construction.It is based on
This, this application provides a kind of methods quickly modeled to body construction, parametric modeling method can be utilized quick
The emulation and modeling to car body are realized, specifically, obtaining the corresponding structure of each structure position point of body construction first
Design drawing, wherein each structural design drawing has the dimension information and location information of corresponding structure position, secondly, based on each
The dimension information and location information of a structure position, each structural design drawing is spliced, and obtains equivalent the three of body construction
Equivalent threedimensional model is finally carried out mesh generation, obtains the finite element model of body construction by dimension module.
Since the structural design drawing of each structure position of body construction is completed when body construction designs, the application
The carbody modeling method of offer is that the foundation of model is carried out based on existing structural design drawing, passes through the size of each structure position
Information and location information splice each structural design drawing, obtain the equivalent threedimensional model of body construction, it is seen then that this Shen
It is please higher to the model foundation efficiency of body construction, it disclosure satisfy that the demand of rapid modeling, it is quick to body construction to meet
The requirement of mechanical property assessment.
The embodiment for introducing a kind of carbody modeling method provided by the present application in detail below is implemented with reference to figure 1 for the application
A kind of flow chart for carbody modeling method that example provides, this method specifically include：
S101：Obtain the corresponding structural design drawing of each structure position of body construction, wherein the structure design
Scheme dimension information and location information with corresponding structure position.
In practical application, in the design phase of body construction, body construction designer can be directed to each knot of body construction
Design corresponding structural design drawing in structure position, wherein by taking Car Body Structure in Subway as an example, the structure position of body construction can wrap
It includes：Floor, cross bearer, needle beam, side bar, pillow interior beam, sleeper beam, draw beam, pilot beam, side wall crust, door, window, side wall are vertical
The upper and lower column of column, window pillar, window, door pillar, door upper beam, roof side rail, roof corrugated plating, air-conditioning, carline, outside headwall
The structure compositions such as skin, headwall door, headwall door pillar, headwall door upper beam, headwall door upper pillar stand, headwall pedestal, headwall corner post
Beam shell structure.In addition, dimension information and location information with counter structure position in structural design drawing, for example, floor
Structural design drawing in floor dimension information and location information, wherein dimension information can be floor size, position
Information can be the coordinate value on floor.
It, can be equivalent by the corrugated board structures on the floor of Car Body Structure in Subway and roof before S101 in practical application
For orthotropic plate and shell structure, as shown in Fig. 2, being a kind of corrugated board structures schematic diagram provided by the embodiments of the present application.
Furthermore it is also possible to the slim-lined construction in Car Body Structure in Subway is equivalent to beam column construction, as shown in figure 3, being the embodiment of the present application
A kind of beam column construction schematic diagram provided.
It is noted that the structure position division of body construction can be not limited to above-mentioned dividing mode, body construction is set
Meter person can according to demand divide body construction, obtain each structure position, and then for the vehicle of the embodiment of the present application
In volume modeling method.
It, can be according to the geometry of the section of body construction still by taking Car Body Structure in Subway as an example in a kind of realization method
With position, various beams, the cross sectional shape of column and the position of size, vehicle window and car door etc., each structural portion of body construction is determined
Position.With reference to figure 4-7, the respectively schematic diagram of the corresponding structural design drawing of each structure position of body construction, wherein Fig. 4 is
A kind of structural design drawing of the chassis of body construction, wherein chassis may include：Floor, side bar, cross bearer, needle beam, traction
Beam, sleeper beam, pilot beam and pillow interior beam etc..Fig. 5 is a kind of structural design drawing of the side wall of body construction, wherein side wall can be with
Including：Side wall crust, end column, column, door pillar, door upper beam, window pillar, window upper beam, window bottom end rail, window upper pillar stand,
Window lower pillar stand, side wall cantrail etc..Fig. 6 is a kind of structural design drawing of the roof of car body framework, wherein roof may include：
Roof crust, carline, the camber beam of air-conditioning part, air-conditioning crossbeam, air-conditioning longeron etc..Fig. 7 is a kind of headwall of body construction
Structural design drawing, wherein headwall may include：Crust, headwall corner post, headwall door pillar, headwall door upper beam, headwall door
Upper pillar stand etc..
S102：Each structural design drawing is spliced, is obtained by the dimension information based on each structure position and location information
To the equivalent threedimensional model of the body construction.
In the embodiment of the present application, the corresponding structural design drawing of each structure position of body construction is got in S101
Afterwards, the dimension information based on each structure position and location information, each structural design drawing is spliced, body construction is obtained
Equivalent threedimensional model, with reference to figure 8, for a kind of showing for equivalent threedimensional model of Car Body Structure in Subway provided by the embodiments of the present application
It is intended to.
In practical application, body construction designer determines when each structure position to body construction is designed
The dimension information and location information of each structure position, for example, the size of roof in above-mentioned Fig. 6 and position coordinates etc.
It can be recorded in the structural design drawing of roof.When splicing to each structural design drawing, according to each structure position
Dimension information and location information, you can splicing obtains the equivalent threedimensional model of body construction.
Dimension information and location information of the embodiment of the present application based on each structure position, to body construction, designer is advance
Each structure position of the body construction of design is spliced, and can be realized based on parametric modeling flow, is improved car body and is built
The efficiency of mould.
In a kind of realization method, when body construction designer needs the dimension information to any structure position and/or position
When information is adjusted, the embodiment of the present application can receive its adjustment to the dimension information and/or location information of structure position
Operation, and utilize the ruler of the corresponding structural design drawing of structure position described in the dimension information and/or updating location information after adjustment
Very little information and/or location information, thus based on the dimension information and/or location information after adjustment, it is corresponding to the structure position
Structural design drawing is spliced.That is, the embodiment of the present application can be realized after the parameter for changing each structure position quickly
Complete model adjustment.
S103：The equivalent threedimensional model is subjected to mesh generation, obtains the finite element model of the body construction.
In the embodiment of the present application, after S102 gets the equivalent threedimensional model of body construction, to equivalent threedimensional model into
Row mesh generation, to until can be used in the finite element model to body construction fast dynamics Performance Evaluation.
It is marked off according to the actual size of body construction come the application is real it is worth noting that, grid is technical staff
The mesh generation that example can automate equivalent threedimensional model is applied, to obtain the finite element model of body construction.With reference to
Fig. 9 is a kind of schematic diagram of the finite element model of Car Body Structure in Subway provided by the embodiments of the present application.
In practical application, to body construction fast dynamics Performance Evaluation field, need to generate car body within a short period of time
The finite element model of structure, and realized based on the finite element model and the mechanical property of body construction is assessed, the embodiment of the present application
The carbody modeling method of offer can fast implement emulation and modeling to car body, specifically, first using parametric modeling method
First obtain each structure position point corresponding structural design drawing of body construction, wherein each structural design drawing has pair
The dimension information and location information for the structure position answered, secondly, the dimension information based on each structure position and location information will
Each structural design drawing is spliced, and the equivalent threedimensional model of body construction is obtained, and finally, equivalent threedimensional model is carried out grid
It divides, obtains the finite element model of body construction.The embodiment of the present application can realize rapid modeling, meet quick to body construction
Mechanical property evaluation requirement.
In addition, in stainless steel subway field, the characteristics of due to stainless steel Subway Body material itself, stainless steel Subway Body
The problem of how modeling field is for shorten the modeling time always exists, and carbody modeling method provided by the embodiments of the present application can
Applied to stainless steel Subway Body, the simulation modeling to stainless steel Car Body Structure in Subway is realized, it is effective to shorten stainless steel subway
The modeling time of car body improves the modeling efficiency of stainless steel Subway Body, very big in stainless steel Subway Body design field presence
Meaning.Specifically, can using the flow that carbody modeling method provided by the present application models stainless steel Car Body Structure in Subway
With the introduction with reference to the S101-S103 in above-described embodiment, details are not described herein.
Corresponding with above-described embodiment, it is the application that present invention also provides a kind of carbody modeling devices with reference to figure 10
A kind of structural schematic diagram for carbody modeling device that embodiment provides, the device include：
Acquisition module 1001, the corresponding structural design drawing of each structure position for obtaining body construction, wherein
The structural design drawing has the dimension information and location information of corresponding structure position；
Concatenation module 1002 is used for dimension information and location information based on each structure position, by each structure design
Figure is spliced, and the equivalent threedimensional model of the body construction is obtained；
Division module 1003 obtains having for the body construction for the equivalent threedimensional model to be carried out mesh generation
Limit meta-model.
In practical application, the body construction includes stainless steel Car Body Structure in Subway.
The structure position includes the corrugated board structures of floor and roof, and described device further includes：
First equivalent modules, for the corrugated board structures on the floor and roof to be equivalent to orthotropic plate shell
Structure.
The structure position includes slim-lined construction, and described device further includes：
Second equivalent modules, for the slim-lined construction to be equivalent to beam column construction.
Described device further includes：
Update module, for receiving the adjustment operation to the dimension information and/or location information at any structure position, and profit
The dimension information of the corresponding structural design drawing of structure position described in the dimension information and/or updating location information after adjustment and/
Or location information.
Described device further includes：
Evaluation module carries out fast dynamics for the finite element model using the body construction to the body construction
Performance Evaluation.
This application provides a kind of carbody modeling devices, can be fast implemented using parametric modeling method and be imitated car body
True and modeling, specifically, obtaining the corresponding structural design drawing of each structure position point of body construction first, wherein each
A structural design drawing has the dimension information and location information of corresponding structure position, secondly, the ruler based on each structure position
Very little information and location information splice each structural design drawing, obtain the equivalent threedimensional model of body construction, finally, will
Equivalent threedimensional model carries out mesh generation, obtains the finite element model of body construction.The embodiment of the present application can realize fast run-up
Mould meets to body construction fast dynamics Performance Evaluation demand.
Correspondingly, the embodiment of the present invention also provides a kind of carbody modeling equipment, it is shown in Figure 11, may include：
Processor 1101, memory 1102, input unit 1103 and output device 1104.Processing in carbody modeling equipment
The quantity of device 1101 can be one or more, in Figure 11 by taking a processor as an example.In some embodiments of the invention, it handles
Device 1101, memory 1102, input unit 1103 and output device 1104 can be connected by bus or other means, wherein figure
In 11 for being connected by bus.
Memory 1102 can be used for storing software program and module, and processor 1101 is stored in memory by operation
1102 software program and module, to execute various function application and the data processing of carbody modeling equipment.Memory
1102 can include mainly storing program area and storage data field, wherein storing program area can storage program area, at least one work(
Application program etc. needed for energy.In addition, memory 1102 may include high-speed random access memory, can also include non-volatile
Property memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.Input unit
1103 can be used for receiving the number or character information of input, and generate and the user setting of carbody modeling equipment and function control
Make related signal input.
Specifically in the present embodiment, processor 1101 can apply journey according to following instruction by one or more
The corresponding executable file of process of sequence is loaded into memory 1102, and is stored in memory by processor 1101 to run
Application program in 1102, to realize the various functions in above-mentioned carbody modeling method.
For device embodiments, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein described be used as separating component
The unit of explanation may or may not be physically separated, and the component shown as unit can be or can also
It is not physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to actual
It needs that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not
In the case of making the creative labor, you can to understand and implement.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
A kind of carbody modeling method, apparatus and equipment provided above to the embodiment of the present application is described in detail,
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and the explanation of above example is only used
Understand the present processes and its core concept in help；Meanwhile for those of ordinary skill in the art, according to the application's
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation to the application.
Claims (13)
1. a kind of carbody modeling method, which is characterized in that the method includes：
Obtain body construction the corresponding structural design drawing of each structure position, wherein the structural design drawing have pair
The dimension information and location information for the structure position answered；
Dimension information based on each structure position and location information splice each structural design drawing, obtain the vehicle
The equivalent threedimensional model of body structure；
The equivalent threedimensional model is subjected to mesh generation, obtains the finite element model of the body construction.
2. carbody modeling method according to claim 1, which is characterized in that the body construction includes stainless steel subway
Body structure.
3. carbody modeling method according to claim 1 or 2, which is characterized in that the structure position includes floor and vehicle
The corrugated board structures on top, it is described obtain body construction the corresponding structural design drawing of each structure position before, further include：
The corrugated board structures on the floor and roof are equivalent to orthotropic plate and shell structure.
4. carbody modeling method according to claim 1 or 2, which is characterized in that the structure position includes slim-lined construction,
Before the corresponding structural design drawing of each structure position for obtaining body construction, further include：
The slim-lined construction is equivalent to beam column construction.
5. carbody modeling method according to claim 1, which is characterized in that the method further includes：
It receives and the adjustment of the dimension information and/or location information at any structure position is operated, and believed using the size after adjustment
The dimension information and/or location information of the corresponding structural design drawing of structure position described in breath and/or updating location information.
6. carbody modeling method according to claim 1, which is characterized in that the method further includes：
Using the finite element model of the body construction, fast dynamics Performance Evaluation is carried out to the body construction.
7. a kind of carbody modeling device, which is characterized in that described device includes：
Acquisition module, the corresponding structural design drawing of each structure position for obtaining body construction, wherein the structure
Design drawing has the dimension information and location information of corresponding structure position；
Concatenation module is used for dimension information and location information based on each structure position, each structural design drawing is spelled
It connects, obtains the equivalent threedimensional model of the body construction；
Division module obtains the finite element model of the body construction for the equivalent threedimensional model to be carried out mesh generation.
8. carbody modeling device according to claim 7, which is characterized in that the body construction includes stainless steel subway
Body structure.
9. carbody modeling device according to claim 7 or 8, which is characterized in that the structure position includes floor and vehicle
The corrugated board structures on top, described device further include：
First equivalent modules, for the corrugated board structures on the floor and roof to be equivalent to orthotropic plate shell knot
Structure.
10. carbody modeling device according to claim 7 or 8, which is characterized in that the structure position includes elongated knot
Structure, described device further include：
Second equivalent modules, for the slim-lined construction to be equivalent to beam column construction.
11. carbody modeling device according to claim 7, which is characterized in that described device further includes：
Update module for receiving the adjustment operation to the dimension information and/or location information at any structure position, and utilizes tune
The dimension information of the corresponding structural design drawing of structure position and/or position described in dimension information and/or updating location information after whole
Confidence ceases.
12. carbody modeling device according to claim 7, which is characterized in that described device further includes：
Evaluation module carries out fast dynamics performance for the finite element model using the body construction to the body construction
Assessment.
13. a kind of carbody modeling equipment, which is characterized in that the equipment includes memory and processor,
Said program code is transferred to the processor by the memory for storing program code；
The processor is used for according to the instruction in said program code, and perform claim requires the car body described in any one of 1-6
Modeling method.
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| CN201810497600.1A CN108804776A (en) | 2018-05-22 | 2018-05-22 | A kind of carbody modeling method, apparatus and equipment |
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| CN201810497600.1A CN108804776A (en) | 2018-05-22 | 2018-05-22 | A kind of carbody modeling method, apparatus and equipment |
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Application publication date: 20181113 |