CN109255195A - Shutter member pre-bending analysis method, device and the realization device of car door - Google Patents
Shutter member pre-bending analysis method, device and the realization device of car door Download PDFInfo
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Abstract
The present invention provides shutter member pre-bending analysis method, device and the realization devices of a kind of car door；Wherein, this method comprises: obtaining car door finite element model；To the hinge fraction and door lock section addition constraint condition in car door finite element model；According to predetermined forced position, the load chosen in car door finite element model loads node；Forced position includes the sealing surface of car door；According to pressure and constraint condition that car door finite element model, predetermined door sealing face are subject under shutdown state, determine after applying pressure to load load node, the bending parameters of shutter member part in car door finite element model.The present invention improves the accuracy to shutter member pre-bending analysis.
Description
Technical field
The present invention relates to vehicle performance analysis technical fields, more particularly, to a kind of shutter member pre-bending analysis side of car door
Method, device and realization device.
Background technique
Arrangements for automotive doors is a relatively independent assembly in automobiles, is made of car door metal plate and door accessories.Car door is total
It is connect with side wall by hinge and limiter at being, and vehicle itself mark need to be met with periphery members such as body side wall and fenders
The gap and face of alignment request are poor.In order to guarantee the requirement of rain-proof dust-proof, sound insulation and noise reduction to sealing, between car door assembly and vehicle body
It arranges one or two sealing joint strip, forms sealing space, but the compression of sealing joint strip can give car door reaction force, this active force
It will cause the deformation of car door metal plate.
Reversed predeformation can be carried out in sheet metal designing, to alleviate the metal plate deformation of car door.The prior art is main
It is to establish car door model based on CAE (Computer Aided Engineering, computer-aided engineering), chooses grid list
Member applies uniform load, to obtain window frame deflection；It is to rely on this deflection, car door sheet metal process data is carried out pre-
Bending deformation processing；However due to the limitation of structure feature, single grid area and bottom of door difference at door sash compared with
Greatly, therefore according to grid area apply uniform load, it is accurate to the shutter member pre-bending analysis result of car door to result in the prior art
Property is lower.
Summary of the invention
In view of this, the purpose of the present invention is to provide shutter member pre-bending analysis method, device and the realizations of a kind of car door
Device, to improve the accuracy of shutter member pre-bending analysis.
In a first aspect, the embodiment of the invention provides a kind of shutter member pre-bending analysis methods of car door, comprising: obtain car door
Finite element model；To the hinge fraction and door lock section addition constraint condition in car door finite element model；According to predetermined
Forced position, the load chosen in car door finite element model load node；Forced position includes the sealing surface of car door；According to car door
Pressure is applied in the pressure and constraint condition that finite element model, predetermined door sealing face are subject under shutdown state, determination
After being added on load load node, the bending parameters of shutter member part in car door finite element model.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
Stating hinge fraction includes first axle part and second hinge part；Above-mentioned hinge fraction and door in car door finite element model
The step of lock section point addition constraint condition, comprising: the first constraint condition is added to first axle part；First constraint condition includes
Constrain three rotation directions of first axle part and the freedom degree parameter of three translation directions；To second hinge part addition the
Two constraint conditions；Second constraint condition includes three rotation directions for constraining second hinge part and the freedom of three translation directions
Spend parameter；Third constraint condition is added to door lock section；Third constraint condition includes three translation directions for constraining door lock section
Freedom degree parameter.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein on
The pressure and constraint condition being subject under shutdown state according to car door finite element model, predetermined door sealing face are stated, really
Surely after applying pressure to load load node, in car door finite element model the step of the bending parameters of shutter member part, comprising:
Obtain the initial position of each test point of shutter member part in car door finite element model；According to car door finite element model, car door
The pressure and constraint condition that sealing surface is subject under shutdown state, after calculating applies pressure to load load node, car door has
Limit the current location of each test point of shutter member part in meta-model；According to the current location of test point and initial position, meter
Calculate the displacement of each test point；The displacement of each test point is determined as to the bent ginseng of shutter member part in car door finite element model
Number.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein the above-mentioned pressure being subject under shutdown state according to car door finite element model, door sealing face and
Constraint condition, after calculating applies pressure to load load node, each detection of shutter member part in car door finite element model
The step of current location of point, comprising: according to the pressure that predetermined door sealing face is subject under shutdown state, calculate and carry
Lotus loads the load that node is born；Load and constraint condition are inputted into car door finite element model, update car door finite element model；It obtains
It takes in updated car door finite element model, the current location of each test point of shutter member part.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein the above-mentioned pressure being subject under shutdown state according to predetermined door sealing face is calculated and carried
Lotus loads the step of load that node is born, comprising: loads the load that node is born by following formula assumed (specified) loads:
F=F/n
Wherein, f is the load that each load loads that node is born, and F is the pressure that door sealing face is subject under shutdown state
Power, n are the quantity that load loads node.
Second aspect, the embodiment of the present invention also provide a kind of shutter member pre-bending analytical equipment of car door, comprising: model obtains
Module, for obtaining car door finite element model；Condition adding module, for the hinge fraction and door in car door finite element model
Lock section point addition constraint condition；Node selection module, for choosing car door finite element model according to predetermined forced position
In load load node；Forced position includes the sealing surface of car door；Parameter determination module, for according to car door finite element mould
The pressure and constraint condition that type, predetermined door sealing face are subject under shutdown state, determination apply pressure to load
After loading node, the bending parameters of shutter member part in car door finite element model.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
Stating hinge fraction includes first axle part and second hinge part；Condition adding module is also used to: being added to first axle part
Add the first constraint condition；First constraint condition includes constraining three rotation directions and three translation directions of first axle part
Freedom degree parameter；Second constraint condition is added to second hinge part；Second constraint condition includes constraint second hinge part
The freedom degree parameter of three rotation directions and three translation directions；Third constraint condition is added to door lock section；Third constrains item
Part includes the freedom degree parameter for constraining three translation directions of door lock section.
In conjunction with second aspect, the embodiment of the invention provides second of possible embodiments of second aspect, wherein on
It states parameter determination module to be also used to: obtaining the initial position of each test point of shutter member part in car door finite element model；Root
According to pressure and constraint condition that car door finite element model, door sealing face are subject under shutdown state, calculating is applied pressure to
After load loads node, the current location of each test point of shutter member part in car door finite element model；According to test point
Current location and initial position calculate the displacement of each test point；The displacement of each test point is determined as car door finite element mould
The bending parameters of shutter member part in type.
In conjunction with second of possible embodiment of second aspect, the embodiment of the invention provides the third of second aspect
Possible embodiment, wherein above-mentioned parameter determining module is also used to: according to predetermined door sealing face in shutdown state
Under the pressure that is subject to, assumed (specified) load loads the load that node is born；Load and constraint condition are inputted into car door finite element model, more
New car door finite element model；It obtains in updated car door finite element model, the present bit of each test point of shutter member part
It sets.
The third aspect, the embodiment of the present invention also provide a kind of shutter member pre-bending analysis realization device of car door, including storage
Device and processor, wherein for memory for storing one or more computer instruction, one or more computer instruction is processed
Device executes, to realize the shutter member pre-bending analysis method of above-mentioned car door.
The embodiment of the present invention bring it is following the utility model has the advantages that
The embodiment of the invention provides shutter member pre-bending analysis method, device and the realization devices of a kind of car door；Obtain vehicle
After door finite element model, to the hinge fraction and door lock section addition constraint condition in car door finite element model；According to true in advance
Fixed forced position, the load chosen in car door finite element model load node；And then according to car door finite element model, in advance really
The pressure and constraint condition that fixed door sealing face is subject under shutdown state determine and apply pressure to load load node
Afterwards, in car door finite element model shutter member part bending parameters.Which improves the accuracy of shutter member pre-bending analysis.
Other features and advantages of the present invention will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implementing above-mentioned technology of the invention it can be learnt that.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, better embodiment is cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the shutter member pre-bending analysis method of car door provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the shutter member pre-bending analysis method of another car door provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of car door provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram provided in an embodiment of the present invention for applying uniform load on car door finite element model；
Fig. 5 is a kind of flow chart of car door pre-bending analysis method provided in an embodiment of the present invention；
Fig. 6 is the signal that the output point provided in an embodiment of the present invention in car door finite element model is renumberd
Figure；
Fig. 7 is the schematic diagram provided in an embodiment of the present invention that the required node loaded is extracted in car door finite element model；
Fig. 8 is the schematic diagram constrained at hinge provided in an embodiment of the present invention；
Fig. 9 is the schematic diagram constrained at door lock provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of the shutter member pre-bending analytical equipment of car door provided in an embodiment of the present invention；
Figure 11 is that the structural schematic diagram of realization device is analyzed in a kind of shutter member pre-bending of car door provided in an 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 attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The accuracy of the shutter member pre-bending analysis mode of car door is lower at present, is based on this, the embodiment of the invention provides one
Shutter member pre-bending analysis method, device and the realization device of kind car door can be applied to the fields such as vehicle performance analysis.
It is pre- to a kind of shutter member of car door disclosed in the embodiment of the present invention first for convenient for understanding the present embodiment
Curved analysis method describes in detail.
A kind of flow chart of the shutter member pre-bending analysis method of car door shown in Figure 1, method includes the following steps:
Step S100 obtains car door finite element model.
The model that above-mentioned finite element model is established when being with finite element method is one group and only connects at node
It connects, only by node power transmission, the only controlled unit assembly at node.It, can during establishing car door finite element model
A point finite element unit is changed with the geometry according to car door, and adds the material properties of each component part of car door, therefore the mould
Type can be used as the powerful of car door stress and deformation situation analysis.
Step S102, to the hinge fraction and door lock section addition constraint condition in car door finite element model.
Specifically, can be according to the concrete condition of the car door, hinge fraction and hinge fraction addition to the car door constrain
Condition；Hinge department is the coupling part of car door and car body, and when a vehicle door is closed, hinge fraction may be considered fixed
, therefore the freedom degree of the six direction of hinge fraction can be constrained, that is, along three rectangular co-ordinates of x, y, z in the coordinate system established
The one-movement-freedom-degree of axis direction and rotational freedom around these three reference axis；Door lock is being a part of car door, is closed in car door
In the case where closing, when the sealing surface of car door is by inner effect, door lock section can deformation occurs, at this time it is considered that door lock portion
Dividing has rotational freedom, therefore door lock section can be constrained along the one-movement-freedom-degree of three rectangular co-ordinate axis directions of x, y, z.
Step S104, according to predetermined forced position, the load chosen in car door finite element model loads node；By
Power position includes the sealing surface of car door.
Above-mentioned forced position can be the sealing surface of car door.In order to guarantee the requirement of rain-proof dust-proof, sound insulation and noise reduction to sealing,
One or two sealing joint strip is arranged between car door assembly and vehicle body, forms sealing space, but the compression of sealing joint strip can give
Car door reaction force, this active force will cause the deformation of car door metal plate, it is therefore desirable to analyze after the sealing surface stress of sealing joint strip to
The shutter member of car door brings deformation.Sealing surface in practice is corresponded on the corresponding site of car door finite element model, it will be corresponding
The node of the finite element of position loads node as load.
Step S106, the pressure being subject under shutdown state according to car door finite element model, predetermined door sealing face
Power and constraint condition determine after applying pressure to load load node, the bending of shutter member part in car door finite element model
Parameter.
The pressure that above-mentioned predetermined door sealing face is subject under shutdown state can be to be measured by related experiment
's；When above-mentioned pressure is applied to load load node, since entire car door is an entirety, other parts also will receive phase
The pressure answered can determine the direction for the pressure that other parts are subject to, such as window frame according to the relativeness of various pieces and car body
The pressure direction that part receives is to be locally perpendicular to window frame etc., and pressure, other parts that load load node is subject to are subject to
The parameters such as pressure direction are input in the car door finite element model of addition overconstrained condition, update car door using CAE related software
Finite element model obtains the deformation degree of shutter member part in car door finite element model.
The embodiment of the invention provides a kind of shutter member pre-bending analysis methods of car door；After obtaining car door finite element model,
To the hinge fraction and door lock section addition constraint condition in car door finite element model；According to predetermined forced position, choosing
Load in pick-up door finite element model loads node；And then according to car door finite element model, predetermined door sealing face
The pressure and constraint condition being subject under shutdown state determine after applying pressure to load load node, car door finite element mould
The bending parameters of shutter member part in type.Which improves the accuracy of shutter member pre-bending analysis.
The embodiment of the invention also provides the shutter member pre-bending analysis method of another car door, this method is shown in Fig. 1
It is realized on the basis of method；It is illustrated in figure 2 the structural schematic diagram of car door, method includes the following steps:
Step S200 obtains car door finite element model；Specifically, can establish car door using CAE related software in advance has
Meta-model is limited, interior trim car door is imported in this step and limits meta-model.
Step S202 adds the first constraint condition to first axle part；First constraint condition includes constraint first axle
The freedom degree parameter of partial three rotation directions and three translation directions；Second constraint condition is added to second hinge part；
Second constraint condition includes three rotation directions for constraining second hinge part and the freedom degree parameter of three translation directions；On the door
Lock section point addition third constraint condition；Third constraint condition includes constraining the freedom degree ginseng of three translation directions of door lock section
Number；The step mainly for have on car door and only there are two hinge the case where, i.e., hinge fraction includes first axle part and the
Two hinge part.
Step S204, according to predetermined forced position, the load chosen in car door finite element model loads node；By
Power position includes the sealing surface of car door.
Step S206 obtains the initial position of each test point of shutter member part in car door finite element model；It can be right
The test point carries out label, records coordinate position of the test point in the coordinate system pre-established, is denoted as P1(x1,y1,z1), P2
(x2,y2,z2) etc..
Step S208, the pressure being subject under shutdown state according to car door finite element model, door sealing face and constraint item
Part, after calculating applies pressure to load load node, each test point of shutter member part works as in car door finite element model
Front position；
Specifically, above-mentioned steps S208 can be accomplished by the following way:
(1) pressure being subject under shutdown state according to predetermined door sealing face, assumed (specified) load load node are held
The load received；
The load that node is born can be loaded by following formula assumed (specified) loads:
F=F/n
Wherein, f is the load that each load loads that node is born, and F is the pressure that door sealing face is subject under shutdown state
Power, n are the quantity that load loads node.
(2) load and constraint condition are inputted into car door finite element model, updates car door finite element model；Specifically, limited
Meta-model needs input constraint condition and load (size, distribution including load, time-dependent relation) during foundation；
When part pre-bending analysis is opened and closed, the constraint of load, hinge fraction and door lock section that load load node is born
It is added into the model, updates car door finite element mould shape.
(3) it obtains in updated car door finite element model, the current location of each test point of shutter member part；Specifically
Ground records in updated car door finite element model, and coordinate position of the test point in the same coordinate system is denoted as P1’(x1’,
y1’,z1'), P2’(x2’,y2’,z2') etc..
Step S210 calculates the displacement of each test point according to the current location of test point and initial position；Specifically,
Displacement of the same test point before and after stress can be calculated by following distance between two points formula:
The displacement of each test point is determined as the bent ginseng of shutter member part in car door finite element model by step S212
Number；The bending parameters of each monitoring point being displaced as shutter member part in car door finite element model can also be passed through
Further calculate to obtain other bending parameters to the displacement of each monitoring point.
The load that node is born is loaded by following formula assumed (specified) loads:
F=F/n
Wherein, f is the load that each load loads that node is born, and F is the pressure that door sealing face is subject under shutdown state
Power, n are the quantity that load loads node.
The shutter member pre-bending analysis method of another kind car door provided in an embodiment of the present invention is in vehicle corresponding with forced position
Load load node in door finite element model applies load, overcomes the limitation in the prior art due to structure feature, causes
Single grid area and bottom of door at door sash differ greatly, and applying uniform load according to grid area leads to window frame
Position load is less than normal than actual conditions, as a result inaccurate disadvantage.
The embodiment of the invention also provides another car door pre-bending analysis method, the bases of this method method shown in Fig. 1
It is realized on plinth.It is illustrated in figure 3 the structural schematic diagram of car door, door sash, secondary sealing adhesive tape, primary seal have mainly been marked in figure
The part of Main Analysis in this three parts of adhesive tape and this method.
Pre-bending analysis method is the projection according to sealing strip on grid model (i.e. above-mentioned car door finite element model) at present,
Grid cell is chosen, applies uniform load, as shown in Figure 4.However, being resulted at door sash due to the limitation of structure feature
Single grid area and bottom of door differ greatly, applying uniform load according to grid area causes sash position load than real
Border situation is less than normal, as a result inaccurate.
To solve the above problems, method provided in an embodiment of the present invention is accomplished in the following manner, flow chart such as Fig. 5 institute
Show:
1, interior trim car door is imported in pre-processing software Hypermesh limit meta-model；
2, renumber (renumbeing) is carried out to target output point；The target output point can be shutter member to be analyzed
Position finite element node, using CAE software carry out the process schematic diagram as shown in fig. 6, should during also need
Establish corresponding local coordinate system.
3, load and boundary condition are established.
(1) node loaded required for being extracted in car door finite element model；The node can be the sealing surface of stress
The node of corresponding position in car door finite element model, as shown in Figure 7.
(2) 123456 direction freedom degrees will be constrained at four hinges of two side car doors, constrain 123 directions at two door locks
Freedom degree；The one-movement-freedom-degree and rotational freedom of hinge are constrained, the one-movement-freedom-degree of door lock is constrained, is constrained at hinge
Schematic diagram is as shown in figure 8, constraint schematic diagram is as shown in Figure 9 at door lock.
(3) apply load on the sealing surface cell node of the car door of extraction: the pressure-loaded of sealing strip under shutdown state
On the sealing surface cell node of car door；
A calculates the pressure value that door sealing face is subject under shutdown state: the F0 value (test provided according to design department
When, power that the every 100mm of sealing strip is subject to) with length L calculate the power F that shutdown state exit door sealing surface is subject to:
Calculation formula: F=F0* (L/100),
Unit: F0- N, L-mm, F-N.
B calculates double number of nodes n on sealing surface unit in hypermesh software:
C calculates the power f:f=F/n (N) that every node is subject to.
D applies load on sealing surface cell node (double node), and determines the loading direction of other departments；Specifically
Ground, window frame portion loading direction are to be locally perpendicular to window frame, establish local coordinate system, and Y-direction is that vehicle window is arrived outside in vehicle window, door opening is cut with scissors
Loading direction is X to remaining loading direction is vehicle coordinate system Y-direction power at chain: force is clicked under Anaiysis panel, into
Enter the page as shown in Figure 9, realizes that load applies.
E creates corresponding load step.
4, Bdf file is exported, submits and calculates in the poster processing soft Nustran, check the displacement of target output point；May be used also
To check the information such as stress that shutter member is subject to, by the information predeformation model reversed with the shutter member having built up compared with,
If the information such as displacement and stress can be received, analysis report is exported；If cannot receive, model is adjusted.
This method carries out car door pre-bending analysis by way of applying load on finite element model interior joint, avoids
Apply uniform load on grid and load non-uniform situation due to caused by sizing grid, improves analysis precision.
The embodiment of the present invention also provides a kind of shutter member pre-bending analytical equipment of car door, structural schematic diagram such as Figure 10 institute
Show；The device includes: that model obtains module 1000, for obtaining car door finite element model；Condition adding module 1002, for pair
Hinge fraction and door lock section in car door finite element model add constraint condition；Node selection module 1004, for according to pre-
First determining forced position, the load chosen in car door finite element model load node；Forced position includes the sealing surface of car door；
Parameter determination module 1006, for according to car door finite element model, predetermined door sealing face under shutdown state by
Pressure and constraint condition, determine apply pressure to load load node after, shutter member part in car door finite element model
Bending parameters.
Above-mentioned hinge fraction includes first axle part and second hinge part；Condition adding module can be also used for: right
Add the first constraint condition in first axle part；First constraint condition include constrain first axle part three rotation directions and
The freedom degree parameter of three translation directions；Second constraint condition is added to second hinge part；Second constraint condition includes constraint
Three rotation directions of second hinge part and the freedom degree parameter of three translation directions；Item is constrained to door lock section addition third
Part；Third constraint condition includes constraining the freedom degree parameter of three translation directions of door lock section.
Further, above-mentioned parameter determining module is also used to: shutter member part is each in acquisition car door finite element model
The initial position of test point；The pressure and constraint item being subject under shutdown state according to car door finite element model, door sealing face
Part, after calculating applies pressure to load load node, each test point of shutter member part works as in car door finite element model
Front position；According to the current location of test point and initial position, the displacement of each test point is calculated；By the displacement of each test point
It is determined as the bending parameters of shutter member part in car door finite element model.
Further, above-mentioned parameter determining module is also used to: according to predetermined door sealing face under shutdown state
The pressure being subject to, assumed (specified) load load the load that node is born；Load and constraint condition are inputted into car door finite element model, updated
Car door finite element model；It obtains in updated car door finite element model, the current location of each test point of shutter member part.
The shutter member pre-bending analytical equipment of car door provided in an embodiment of the present invention, with opening for car door provided by the above embodiment
Closing member pre-bending analysis method technical characteristic having the same reaches identical technology so also can solve identical technical problem
Effect.
Present embodiments provide for a kind of shutter member pre-bending of car door corresponding with above method embodiment analysis is real
Existing device.Figure 11 is the structural schematic diagram of the realization device, and as shown in figure 11, which includes processor 1201 and memory
1202；Wherein, memory 1202 is for storing one or more computer instruction, and one or more computer instruction is by processor
It executes, to realize the shutter member pre-bending analysis method of above-mentioned car door.
Realization device shown in Figure 11 further includes bus 1203 and forwarding chip 1204, processor 1201, forwarding chip
1204 and memory 1202 connected by bus 1203.The realization device of the message transmissions can be network edge device.
Wherein, memory 1202 may include high-speed random access memory (RAM, Random Access Memory),
It may also further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.Bus
1203 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data/address bus, control
Bus etc..Only to be indicated with a four-headed arrow in Figure 11, it is not intended that an only bus or a seed type convenient for indicating
Bus.
Forwarding chip 1204 is used to connect by network interface at least one user terminal and other network units, will seal
The IPv4 message or IPv6 message installed is sent to the user terminal by network interface.
Processor 1201 may be a kind of IC chip, the processing capacity with signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 1201 or the instruction of software form.On
The processor 1201 stated can be general processor, including central processing unit (Central Processing Unit, abbreviation
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute sheet
Disclosed each method, step and logic diagram in invention embodiment.General processor can be microprocessor or this at
Reason device is also possible to any conventional processor etc..The step of method in conjunction with disclosed in embodiment of the present invention, can direct body
Now executes completion for hardware decoding processor, or in decoding processor hardware and software module combine and execute completion.It is soft
Part module can be located at random access memory, and flash memory, read-only memory, programmable read only memory or electrically erasable programmable are deposited
In the storage medium of this fields such as reservoir, register maturation.The storage medium is located at memory 1202, and the reading of processor 1201 is deposited
Information in reservoir 1202, in conjunction with its hardware complete aforementioned embodiments method the step of.
Embodiment of the present invention additionally provides a kind of machine readable storage medium, and machine readable storage medium storage is organic
Device executable instruction, for the machine-executable instruction when being called and being executed by processor, machine-executable instruction promotes processor
Realize the shutter member pre-bending analysis method of above-mentioned car door, specific implementation can be found in method implementation, and details are not described herein.
The shutter member pre-bending analytical equipment and realization device of car door provided by embodiment of the present invention, realization principle and
The technical effect of generation is identical with preceding method embodiment, and to briefly describe, device embodiments part does not refer to place, can
With reference to corresponding contents in preceding method embodiment.
In several embodiments provided herein, it should be understood that disclosed device and method can also lead to
Other modes are crossed to realize.Device embodiments described above are only schematical, for example, the flow chart in attached drawing and
Block diagram shows the system in the cards of the device of multiple embodiments according to the present invention, method and computer program product
Framework, function and operation.In this regard, each box in flowchart or block diagram can represent a module, program segment or generation
A part of code, a part of the module, section or code include one or more for realizing defined logic function
Executable instruction.It should also be noted that function marked in the box can also be in some implementations as replacement
Occur different from the sequence marked in attached drawing.For example, two continuous boxes can actually be basically executed in parallel, they
Sometimes it can also execute in the opposite order, this depends on the function involved.It is also noted that block diagram and or flow chart
In each box and the box in block diagram and or flow chart combination, can function or movement as defined in executing it is special
Hardware based system is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention can integrate and form one together solely
Vertical part is also possible to modules individualism, can also be integrated to form with two or more modules one it is independent
Part.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the disclosure is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute all or part of step of each embodiment the method for the disclosure
Suddenly.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), deposits at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic or disk.
Finally, it should be noted that embodiment described above, the only specific embodiment of the disclosure, to illustrate this public affairs
The technical solution opened, rather than its limitations, the protection scope of the disclosure are not limited thereto, although referring to aforementioned embodiments pair
The disclosure is described in detail, those skilled in the art should understand that: any technology for being familiar with the art
Personnel can still modify to technical solution documented by aforementioned embodiments in the technical scope that the disclosure discloses
Or variation or equivalent replacement of some of the technical features can be readily occurred in；And these modifications, variation or replacement,
The spirit and scope for disclosure embodiment technical solution that it does not separate the essence of the corresponding technical solution, should all cover in this public affairs
Within the protection scope opened.Therefore, the protection scope of the disclosure shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of shutter member pre-bending analysis method of car door characterized by comprising
Obtain car door finite element model；
To the hinge fraction and door lock section addition constraint condition in the car door finite element model；
According to predetermined forced position, the load load node in the car door finite element model is chosen；The stress position
Set the sealing surface including car door；
The pressure that is subject under shutdown state according to the car door finite element model, predetermined door sealing face and it is described about
Beam condition determines after the pressure is applied to the load load node, shutter member part in the car door finite element model
Bending parameters.
2. the method according to claim 1, wherein the hinge fraction includes first axle part and the second hinge
Chain part；
The step of hinge fraction and door lock section in the car door finite element model adds constraint condition, comprising:
First constraint condition is added to the first axle part；First constraint condition includes constraining the first axle portion
The freedom degree parameter of three rotation directions and three translation directions divided；
Second constraint condition is added to the second hinge part；Second constraint condition includes constraining the second hinge portion
The freedom degree parameter of three rotation directions and three translation directions divided；
Third constraint condition is added to the door lock section；The third constraint condition includes three for constraining the door lock section
The freedom degree parameter of translation direction.
3. the method according to claim 1, wherein it is described according to the car door finite element model, predefine
Door sealing the face pressure and the constraint condition that are subject under shutdown state, determine and the pressure be applied to the load
After loading node, in the car door finite element model the step of bending parameters of shutter member part, comprising:
Obtain the initial position of each test point of shutter member part in the car door finite element model；
The pressure and the constraint condition being subject under shutdown state according to the car door finite element model, door sealing face, meter
It calculates after the pressure is applied to the load load node, shutter member part is each described in the car door finite element model
The current location of test point；
According to the current location of the test point and initial position, the displacement of each test point is calculated；
The displacement of each test point is determined as to the bending parameters of shutter member part in the car door finite element model.
4. according to the method described in claim 3, it is characterized in that, described according to the car door finite element model, door sealing
The pressure and the constraint condition that face is subject under shutdown state calculate the pressure being applied to the load load node
Afterwards, in the car door finite element model the step of current location of each test point of shutter member part, comprising:
According to the pressure that predetermined door sealing face is subject under shutdown state, calculate what the load load node was born
Load；
The load and the constraint condition are inputted into the car door finite element model, update the car door finite element model；
It obtains in the updated car door finite element model, the current location of each test point of shutter member part.
5. according to the method described in claim 4, it is characterized in that, it is described according to predetermined door sealing face in shutdown shape
The pressure being subject under state calculates the step of load loads the load that node is born, comprising:
The load, which is calculated, by following formula loads the load that node is born:
F=F/n
Wherein, f is that each load loads the load that node is born, and F is the pressure that door sealing face is subject under shutdown state
Power, n are the quantity that the load loads node.
6. a kind of shutter member pre-bending analytical equipment of car door characterized by comprising
Model obtains module, for obtaining car door finite element model；
Condition adding module, for the hinge fraction and door lock section addition constraint condition in the car door finite element model；
Node selection module, for according to predetermined forced position, the load chosen in the car door finite element model to add
Carry node；The forced position includes the sealing surface of car door；
Parameter determination module is used for according to the car door finite element model, predetermined door sealing face under shutdown state
The pressure and the constraint condition being subject to determine after the pressure is applied to the load load node that the car door is limited
The bending parameters of shutter member part in meta-model.
7. device according to claim 6, which is characterized in that the hinge fraction includes first axle part and the second hinge
Chain part；
The condition adding module is also used to:
First constraint condition is added to the first axle part；First constraint condition includes constraining the first axle portion
The freedom degree parameter of three rotation directions and three translation directions divided；
Second constraint condition is added to the second hinge part；Second constraint condition includes constraining the second hinge portion
The freedom degree parameter of three rotation directions and three translation directions divided；
Third constraint condition is added to the door lock section；The third constraint condition includes three for constraining the door lock section
The freedom degree parameter of translation direction.
8. device according to claim 6, which is characterized in that the parameter determination module is also used to:
Obtain the initial position of each test point of shutter member part in the car door finite element model；
The pressure and the constraint condition being subject under shutdown state according to the car door finite element model, door sealing face, meter
It calculates after the pressure is applied to the load load node, shutter member part is each described in the car door finite element model
The current location of test point；
According to the current location of the test point and initial position, the displacement of each test point is calculated；
The displacement of each test point is determined as to the bending parameters of shutter member part in the car door finite element model.
9. device according to claim 8, which is characterized in that the parameter determination module is also used to:
According to the pressure that predetermined door sealing face is subject under shutdown state, calculate what the load load node was born
Load；
The load and the constraint condition are inputted into the car door finite element model, update the car door finite element model；
It obtains in the updated car door finite element model, the current location of each test point of shutter member part.
10. realization device is analyzed in a kind of shutter member pre-bending of car door, which is characterized in that including memory and processor, wherein institute
State memory for store one or more computer instruction, one or more computer instruction held by the processor
Row, to realize method described in any one of claim 1 to 5.
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| CN201811137218.6A CN109255195A (en) | 2018-09-27 | 2018-09-27 | Shutter member pre-bending analysis method, device and the realization device of car door |
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| CN109783996A (en) * | 2019-03-12 | 2019-05-21 | 爱驰汽车有限公司 | Vehicle engine hatch cover falls lid analysis method, system, storage medium and equipment |
| CN110826150A (en) * | 2019-11-05 | 2020-02-21 | 中国第一汽车股份有限公司 | Vehicle door design method based on impact load of stopper |
| CN110955997A (en) * | 2019-11-27 | 2020-04-03 | 安徽江淮汽车集团股份有限公司 | Computer readable storage medium, automobile ceiling bearing analysis method and device |
| CN112052519A (en) * | 2020-08-26 | 2020-12-08 | 南京依维柯汽车有限公司 | Predeformation design and analysis method for automobile side sliding door |
| CN112052519B (en) * | 2020-08-26 | 2024-05-14 | 南京依维柯汽车有限公司 | Predeformation design and analysis method for automobile side-sliding door |
| CN112100883A (en) * | 2020-08-27 | 2020-12-18 | 宝能(广州)汽车研究院有限公司 | Vehicle door fatigue simulation analysis method |
| CN112016230B (en) * | 2020-08-28 | 2023-08-01 | 上汽大众汽车有限公司 | Finite element modeling method for sealing strip of opening and closing piece |
| CN112016230A (en) * | 2020-08-28 | 2020-12-01 | 上汽大众汽车有限公司 | Finite element modeling method for sealing strip of opening and closing part |
| CN112417605A (en) * | 2020-12-09 | 2021-02-26 | 安徽江淮汽车集团股份有限公司 | Vehicle door predeformation analysis method, system, terminal and storage medium |
| CN113094815B (en) * | 2021-04-09 | 2022-11-25 | 爱驰汽车有限公司 | Sealing strip material parameter acquisition method and opening and closing part structure durability analysis method |
| CN113094815A (en) * | 2021-04-09 | 2021-07-09 | 爱驰汽车有限公司 | Sealing strip material parameter acquisition method and opening and closing part structure durability analysis method |
| WO2023071772A1 (en) * | 2021-10-26 | 2023-05-04 | 山东神力索具有限公司 | Control method and apparatus for contact setting between rigging and load application body |
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