CN109711043A - A kind of deformable mobile obstacle collision simulation method and computer storage medium based on CAE - Google Patents
A kind of deformable mobile obstacle collision simulation method and computer storage medium based on CAE Download PDFInfo
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Abstract
The present invention relates to a kind of deformable mobile obstacle collision simulation method and computer storage medium based on CAE, this method comprises: building virtual vehicle, virtual dummy and deformable mobile virtual obstacle, and moving area is chosen on deformable mobile virtual obstacle；Apply the impact velocity of requirement of experiment to virtual vehicle and virtual dummy, simultaneously, apply the displacement moved downward because generating with virtual vehicle contact virtual vehicle wheel rotational energy to deformable mobile virtual obstacle to moving area, obtains the relative motion animation of virtual vehicle and deformable mobile virtual obstacle；The relative motion animation and actual collision test video recording are carried out to mark, both judge to mark as a result, replacing actual collision to test with deformable mobile obstacle collision simulation test if consistent to marking.The present invention moves down load in simulation process for the mobile obstacle of changeability, improves offset collision simulation analysis to the precision of mark test, to further ensure the reliability of simulation analysis result.
Description
Technical field
The present invention relates to vehicle safety detection technique field more particularly to a kind of deformable mobile obstacles based on CAE
Collision simulation method and computer storage medium.
Background technique
CAE simulation analysis has become the dominant technology in automotive development design process, in the design matter for improving product
Amount reduces development cost, has all played important function in terms of shortening the development cycle.During complete automobile collision security development,
CAE simulation analysis and analysis of experiments are to target similarity, rectification experimental verification subsequent to vehicle, the exploitation of vehicle assembly components
There is vital effect.
The 40% deformable obstacle impact test of overlapping of front, carries out, 40% weight of test vehicle according to C-NCAP test procedure
The folded fixed deformable obstacle of frontal impact.Impact velocity is 64 ± 1km/h, offset collision vehicle and deformable obstacle collision weight
Folded width should be in the range of 40% vehicle width ± 20mm.A Hybrid is placed respectively in front-seat driver and occupant position
50 percentile male dummy of type III, to measure front-seat injury to personnel evil situation.It is put on the seat of the second row of seats leftmost side
5 percentile Female dummy of a Hybrid type III is set, to measure second row injury to personnel evil situation.It is single for two
Seat coach type only places 50 percentile male dummy of a Hybrid type III in front-seat driver and occupant position respectively, to
Measure front-seat injury to personnel evil situation.
In offset collision test, when the wheel of rotation is contacted with deformable obstacle, deformable obstacle can generate downward fortune
Dynamic trend.During this, the contact position of deformable obstacle and front of the car can change at the moment, to front of the car
Anti-collision beam deformation can also have an impact.
However, currently, there is no in CAE simulation analysis for influence of the vehicle wheel rotation to deformable obstacle in simulation analysis
In embody, cause the deformation of CAE simulation analysis deformable obstacle to deform with deformable obstacle in test not consistent, seriously
When also will affect stringer deformation, to influence the accuracy of CAE simulation analysis.
Therefore it provides a kind of deformable mobile obstacle collision simulation method and computer storage medium based on CAE.
Summary of the invention
In view of the above problems, the present invention is proposed to overcome the above problem in order to provide one kind or at least be partially solved
The deformable mobile obstacle collision simulation method based on CAE of the above problem solves the deformable obstacle deformation of CAE simulation analysis
Inconsistent problem is deformed with obstacle deformable in actual tests, accurately simulates obstacle and car body in offset collision analysis
Relative positional relationship in deformation process improves offset collision simulation analysis to the precision of mark test, thus further
It ensure that the reliability of simulation analysis result.
According to an aspect of the present invention, a kind of deformable mobile obstacle collision simulation method based on CAE is provided, is wrapped
It includes:
Virtual vehicle is constructed according to vehicle actual parameter, virtual dummy is constructed according to dummy's actual parameter, according to deformable
Mobile obstacle actual parameter constructs deformable mobile virtual obstacle, and chooses moving area on deformable mobile virtual obstacle；
The relative position of simulation virtual vehicle, virtual dummy and deformable mobile virtual obstacle is required according to actual test,
Apply the impact velocity to deformable mobile virtual obstacle to virtual vehicle and virtual dummy, meanwhile, to moving area apply with
The displacement of time change obtains the relative motion animation of virtual vehicle and deformable mobile virtual obstacle；
The relative motion animation and actual collision test video recording carry out judging relative motion animation and actual collision to mark
Test video recording to mark as a result, if consistent to marking, replace actual collision to try with deformable mobile obstacle collision simulation test
It tests.
Further, the above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: pass through actual collision
The displacement that deformable mobile obstacle changes over time in test applies the displacement changed over time to moving area.
Further, the displacement that deformable mobile obstacle changes over time in actual collision test, specific acquisition process is such as
Under:
When the mobile obstacle of vehicle tyre and changeability just contacts in record actual collision test, the mobile obstacle of changeability away from
Elemental height and current initial time from the ground；
Recording vehicle tyre in actual collision test, with after the mobile obstacle relative motion of changeability, vehicle tyre stops turning
When dynamic, the mobile obstacle of changeability is apart from the final height on ground and current final moment；
Deformable movement in actual collision test is drawn according to elemental height, initial time, final height and final moment
The time-displacement curve of obstacle.
Further, moving area is chosen by following steps:
It measures in actual collision test between vehicle and the mobile obstacle collision vehicle in front tire core wheel of changeability and ground
First distance；
In deformable mobile virtual obstacle and virtual vehicle tire interface, and deformable mobile virtual obstacle and virtual
When second distance between vehicle tyre core wheel is equal with first distance, deformable mobile virtual obstacle and virtual vehicle tire
Between contact area as moving area.
Further, the above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: storage actual collision
Test records a video and for target actual collision test result.
Further, to being designated as deformable mobile obstacle athletic posture to mark.
Further, the displacement that deformable mobile obstacle changes over time in actual collision test, specific acquisition process is such as
Under:
When the mobile obstacle of vehicle tyre and changeability just contacts in record actual collision test, the mobile obstacle of changeability away from
Elemental height and current initial time from the ground；
It records in actual collision test in vehicle tyre and the mobile obstacle relative movement of changeability, changeability is mobile
Process height and current process moment of the obstacle apart from ground；
Recording vehicle tyre in actual collision test, with after the mobile obstacle relative motion of changeability, vehicle tyre stops turning
When dynamic, the mobile obstacle of changeability is apart from the final height on ground and current final moment；
It draws and actually touches according to elemental height, initial time, process height, process moment, final height and final moment
Hit the time-displacement curve of deformable mobile obstacle in test.
Further, the above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: if relative motion is dynamic
It draws and tests the inconsistent to mark result of video recording with actual collision, then repaint deformable mobile obstacle in actual collision test
Time-displacement curve, until the time-displacement curve make deformable mobile virtual obstacle displacement meet to mark result it is consistent
Until.
Further, virtual vehicle is 64 ± 1km/h to the impact velocity of deformable mobile virtual obstacle.
According to another aspect of the present invention, a kind of computer readable storage medium is provided, computer journey is stored thereon with
Sequence is realized when the program is executed by processor such as the step of preceding claim method.
The present invention has the advantage that compared with prior art
Deformable mobile obstacle collision simulation method based on CAE of the invention adds moving down for the mobile obstacle of changeability
It is loaded in simulation process, accurately simulates the relative position of obstacle and car body in deformation process in offset collision analysis and close
System improves offset collision simulation analysis to the precision of mark test, to further ensure the reliable of simulation analysis result
Property.
Detailed description of the invention
Below in conjunction with drawings and examples, the invention will be further described.
Fig. 1 is the deformable mobile obstacle collision simulation method and step figure of the invention based on CAE；
Fig. 2 is obstacle time-displacement curve.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The exemplary embodiment opened, it being understood, however, that may be realized in various forms the disclosure without the implementation that should be illustrated here
Example is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the disclosure
Range is fully disclosed to those skilled in the art.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology
Term and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary, it should be understood that have and the context of the prior art
In the consistent meaning of meaning otherwise will not be solved with idealization or meaning too formal and unless by specific definitions
It releases.
Due to the energy of vehicle wheel rotation, the position that can be contacted to wheel of vehicle with obstacle generates cutting for a vertical direction
Xiang Li, this tangential force will lead to obstacle and generate downward displacement, currently, lacking in deformable mobile obstacle collision simulation empty
Deformable mobile virtual obstacle moves downward this part, therefore, the present invention after quasi- vehicle bumps against deformable mobile virtual obstacle
A kind of deformable mobile obstacle collision simulation method based on CAE is provided, virtual vehicle is loaded with and bumps against deformable mobile void
Deformable mobile virtual obstacle moves downward this part after quasi- obstacle.
Fig. 1 be it is of the invention based on CAE (Computer Aided Engineering, computer-aided engineering) can
Displacement obstacle collision simulation method and step figure, referring to Fig. 1, the deformable mobile obstacle provided by the invention based on CAE is touched
Hit emulation mode, comprising:
Virtual vehicle is constructed according to vehicle actual parameter, virtual dummy is constructed according to dummy's actual parameter, according to deformable
Mobile obstacle actual parameter constructs deformable mobile virtual obstacle, and chooses moving area on deformable mobile virtual obstacle；
The relative position of simulation virtual vehicle, virtual dummy and deformable mobile virtual obstacle is required according to actual test,
Apply the impact velocity to deformable mobile virtual obstacle to virtual vehicle and virtual dummy, meanwhile, to moving area apply with
The displacement of time change obtains the relative motion animation of virtual vehicle and deformable mobile virtual obstacle；
The relative motion animation and actual collision test video recording carry out judging relative motion animation and actual collision to mark
Test video recording to mark as a result, if consistent to marking, replace actual collision to try with deformable mobile obstacle collision simulation test
It tests.
Wherein, virtual vehicle is 64 ± 1km/h to the impact velocity of deformable mobile virtual obstacle.
Deformable mobile obstacle collision simulation method based on CAE of the invention adds moving down for the mobile obstacle of changeability
It is loaded in simulation process, accurately simulates the relative position of obstacle and car body in deformation process in offset collision analysis and close
System improves offset collision simulation analysis to the precision of mark test, to further ensure the reliable of simulation analysis result
Property.
The above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: by actual collision test in can
The displacement that displacement obstacle changes over time applies the displacement changed over time to moving area.
Specifically, the displacement that deformable mobile obstacle changes over time in actual collision test, specific acquisition process is such as
Under:
When the mobile obstacle of vehicle tyre and changeability just contacts in record actual collision test, the mobile obstacle of changeability away from
Elemental height and current initial time from the ground；
Recording vehicle tyre in actual collision test, with after the mobile obstacle relative motion of changeability, vehicle tyre stops turning
When dynamic, the mobile obstacle of changeability is apart from the final height on ground and current final moment；
Deformable movement in actual collision test is drawn according to elemental height, initial time, final height and final moment
The time-displacement curve of obstacle.
Further, moving area is chosen by following steps:
It measures in actual collision test between vehicle and the mobile obstacle collision vehicle in front tire core wheel of changeability and ground
First distance；
In deformable mobile virtual obstacle and virtual vehicle tire interface, and deformable mobile virtual obstacle and virtual
When second distance between vehicle tyre core wheel is equal with first distance, deformable mobile virtual obstacle and virtual vehicle tire
Between contact area as moving area.
Further, the displacement that deformable mobile obstacle changes over time in actual collision test, specific acquisition process is such as
Under:
When the mobile obstacle of vehicle tyre and changeability just contacts in record actual collision test, the mobile obstacle of changeability away from
Elemental height and current initial time from the ground；
It records in actual collision test in vehicle tyre and the mobile obstacle relative movement of changeability, changeability is mobile
Process height and current process moment of the obstacle apart from ground；
Recording vehicle tyre in actual collision test, with after the mobile obstacle relative motion of changeability, vehicle tyre stops turning
When dynamic, the mobile obstacle of changeability is apart from the final height on ground and current final moment；
It draws and actually touches according to elemental height, initial time, process height, process moment, final height and final moment
Hit the time-displacement curve of deformable mobile obstacle in test.
Further, the above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: if relative motion is dynamic
It draws and tests the inconsistent to mark result of video recording with actual collision, then repaint deformable mobile obstacle in actual collision test
Time-displacement curve, until the time-displacement curve make deformable mobile virtual obstacle displacement meet to mark result it is consistent
Until.
The present invention, will be adjusted by adjusting the time-displacement curve of deformable mobile obstacle in actual collision test
Time-displacement curve load is carried out to mark, further on deformable mobile virtual obstacle, and to actual tests and virtual test
The precision of virtual test is improved, so that virtual test can substitute actual tests under the premise of accurate.
In practical applications, distance R of the measurement the near front wheel core wheel apart from ground；By by virtual vehicle, virtual dummy and
The CAE model of virtual obstacle composition finds out tire and when obstacle contacts, the contact area of tire and obstacle；Pass through actual tests
Video recording analysis, after determining obstacle and tire interface, the moving displacement of obstacle；It is right in the offset collision analysis put up
Obstacle carries out constraint；Carry out simulation analysis, observation simulation analysis animation and high-speed test (HST) video recording similarity.
Specifically, the first step, according to CNCAP (China-New Car Assessment Program, Chinese new car evaluation
Regulation) offset collision preparation test requirements document, vehicle configuration is completed, and after dummy puts, measures the near front wheel core wheel apart from ground
Distance R.
Second step finds area when tire is contacted with obstacle, when this area is CAE simulation analysis, to wall in CAE
Hinder the region of load deflection, in more detail, vehicle is moved in parallel into vehicle with the obstacle position before obstacle collision and is connect with obstacle
The obstacle position of touching is R at a distance from the obstacle position to tire core wheel that vehicle is contacted with obstacle, and tire passes through obstacle at this time
Area is S, region of this area as obstacle load position.
Third step observes actual tests animation, when just being contacted by actual tests motion picture recording vehicle tyre and obstacle,
Obstacle apart from ground carve height H1 and at this time at the time of T1, when wheel of vehicle stops operating, obstacle apart from ground carve height H2 with
T2 at the time of at this time draws obstacle time-displacement curve, the displacement loading curve in the region as obstacle load position, in condition
The point at several moment can be measured in the case where permission, such time-displacement curve can be more acurrate, or in actual tests more
Process directly obtains time-displacement curve using the displacement sensor on obstacle, wherein as shown in Fig. 2, when drawing curve, T1
The height that the height of moment H1 is defined as zero, T2 moment H2 is (H1-H2), and Z-direction displacement indicates the displacement of vertical direction.
4th step chooses the unit in the region corresponding area S on obstacle in the offset collision simulation analysis completed,
Displacement time curve is applied to the region of obstacle load position.
5th step is submitted and is calculated, motion conditions of the obstacle relative to vehicle in observation emulation, with obstacle in actual tests
Deformation compare.
Loading method to obstacle in CAE of the invention is to guarantee in emulation in the athletic posture and test of obstacle
The athletic posture of obstacle is consistent, thus guarantee front of the car when simulation analysis by obstacle active force and trystate more
Unanimously.
Further, the above-mentioned deformable mobile obstacle collision simulation method based on CAE, further includes: storage actual collision
Test records a video and for target actual collision test result.
To being designated as deformable mobile obstacle athletic posture to mark.Specifically, deformable mobile obstacle athletic posture has mark
Body embodiment are as follows: deformable mobile obstacle is different from mobile virtual obstacle deformable in l-G simulation test in comparison actual tests
Whether the moment is consistent in the shift value of vertical direction, if the shift value of the two in ± 10% range, is indicated to mark one
It causes.
The present invention also provides a kind of systems for realizing the deformable mobile obstacle collision simulation method based on CAE, this is
System includes: that tester building module is constructed for constructing virtual vehicle according to vehicle actual parameter according to dummy's actual parameter
Virtual dummy constructs deformable mobile virtual obstacle according to deformable mobile obstacle actual parameter, and in deformable mobile virtual
Moving area is chosen on obstacle；Virtual test module, for according to actual test require simulation virtual vehicle, virtual dummy with
The relative position of deformable mobile virtual obstacle applies the impact force to deformable mobile virtual obstacle to virtual vehicle, together
When, apply the displacement changed over time to moving area, obtains the relative motion of virtual vehicle and deformable mobile virtual obstacle
Animation；Collision simulation experiment sieving module is carried out for the relative motion animation and actual collision test video recording to mark, judgement
Relative motion animation, to marking as a result, if consistent to marking, is collided imitative with actual collision test video recording with deformable mobile obstacle
True test replaces actual collision to test.
For system embodiments, since it is basically similar to the method embodiment, so being described relatively simple, phase
Place is closed to illustrate referring to the part of embodiment of the method.
In addition, being stored thereon with computer journey the embodiment of the invention also provides a kind of computer readable storage medium
The step of sequence, which realizes method as described above when being executed by processor.
In the present embodiment, module/unit of the deformable mobile obstacle collision simulation system integration based on CAE is such as
Fruit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer
In read/write memory medium.Based on this understanding, the present invention realizes all or part of the process in above-described embodiment method,
Relevant hardware can also be instructed to complete by computer program, the computer program can be stored in a computer
In readable storage medium storing program for executing, the computer program is when being executed by processor, it can be achieved that the step of above-mentioned each embodiment of the method.
Wherein, the computer program includes computer program code, and the computer program code can be source code form, right
As code form, executable file or certain intermediate forms etc..The computer-readable medium may include: that can carry institute
State any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, CD, the computer storage of computer program code
Device, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access
Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that computer-readable Jie
The content that matter includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as at certain
A little jurisdictions do not include electric carrier signal and telecommunication signal according to legislation and patent practice, computer-readable medium.
The embodiment of the invention also provides computer equipment, including memory, processor and storage are on a memory and can
The computer program run on a processor, the processor are realized above-mentioned each based on CAE when executing the computer program
Deformable mobile obstacle collision simulation embodiment of the method in step, such as step S11 shown in FIG. 1, according to vehicle reality
Parameter constructs virtual vehicle, virtual dummy is constructed according to dummy's actual parameter, according to deformable mobile obstacle actual parameter structure
Deformable mobile virtual obstacle is built, and chooses moving area on deformable mobile virtual obstacle；Step S12, according to practical survey
Examination requires the relative position of simulation virtual vehicle, virtual dummy and deformable mobile virtual obstacle, to virtual vehicle and virtually false
People applies the impact velocity to deformable mobile virtual obstacle, meanwhile, apply the displacement changed over time to moving area, obtains
Take the relative motion animation of virtual vehicle Yu deformable mobile virtual obstacle；Step S13, the relative motion animation with actually touch
Test video recording is hit to carry out to mark, judge relative motion animation and actual collision test video recording to mark as a result, if consistent to mark,
Then actual collision is replaced to test with deformable mobile obstacle collision simulation test.Alternatively, the processor executes the computer
The function of each module/unit in the above-mentioned respectively IPR licensing system embodiment based on Internet of Things is realized when program, such as
The system of deformable mobile obstacle collision simulation method based on CAE, the system include: tester building module, virtual test
Module, collision simulation experiment sieving module.
Illustratively, the computer program can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory, and are executed by the processor, to complete the present invention.It is one or
Multiple module/units can be the series of computation machine program instruction section that can complete specific function, and the instruction segment is for describing
Implementation procedure of the computer program in the IPR licensing system based on Internet of Things.For example, the calculating
Machine program can be divided into tester building module, virtual test module, collision simulation experiment sieving module.
The computer equipment can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The computer equipment may include, but be not limited only to, processor, memory.It will be understood by those skilled in the art that above-mentioned
Computer equipment is only the example of computer equipment, does not constitute the restriction to computer equipment, may include more or more
Few component perhaps combines certain components or different components, such as the computer equipment can also include that input is defeated
Equipment, network access equipment, bus etc. out.
The processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processing
Device etc., the processor are the control centres of the computer equipment, utilize various interfaces and the entire computer of connection
The various pieces of equipment.
The memory can be used for storing the computer program and/or module, and the processor is by operation or executes
Computer program in the memory and/or module are stored, and calls the data being stored in memory, realizes institute
State the various functions of computer equipment.The memory can mainly include storing program area and storage data area, wherein storage
Program area can application program needed for storage program area, at least one function (for example sound-playing function, image play function
Energy is equal) etc.；Storage data area, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.
It can also include nonvolatile memory in addition, memory may include high-speed random access memory, such as hard disk, interior
It deposits, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD)
Card, flash card (Flash Card), at least one disk memory, flush memory device or other volatile solid-states
Part.
It will be appreciated by those of skill in the art that although some embodiments in this include included in other embodiments
Certain features rather than other feature, but the combination of the feature of different embodiment mean in the scope of the present invention it
It is interior and form different embodiments.For example, in the following claims, embodiment claimed it is any it
One can in any combination mode come using.
For embodiment of the method, for simple description, therefore, it is stated as a series of action combinations, but ability
Field technique personnel should be aware of, and embodiment of that present invention are not limited by the describe sequence of actions, because real according to the present invention
Example is applied, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that, explanation
Embodiment described in book belongs to preferred embodiment, and related movement not necessarily institute of the embodiment of the present invention is necessary
's.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. a kind of deformable mobile obstacle collision simulation method based on CAE characterized by comprising
Virtual vehicle is constructed according to vehicle actual parameter, virtual dummy is constructed according to dummy's actual parameter, according to deformable movement
Obstacle actual parameter constructs deformable mobile virtual obstacle, and chooses moving area on deformable mobile virtual obstacle；
The relative position that simulation virtual vehicle, virtual dummy and deformable mobile virtual obstacle are required according to actual test, to void
Quasi- vehicle and virtual dummy apply the stroke speed to deformable mobile virtual obstacle, meanwhile, apply at any time to moving area
The displacement of variation obtains the relative motion animation of virtual vehicle and deformable mobile virtual obstacle；
The relative motion animation and actual collision test video recording carry out judging that relative motion animation and actual collision test are recorded to mark
Picture to mark as a result, if consistent to marking, replace actual collision to test with deformable mobile obstacle collision simulation test.
2. the deformable mobile obstacle collision simulation method according to claim 1 based on CAE, which is characterized in that also wrap
Include: by actual collision test in the displacement that changes over time of deformable mobile obstacle, changed over time to moving area application
Displacement.
3. the deformable mobile obstacle collision simulation method according to claim 2 based on CAE, which is characterized in that practical
The displacement that deformable mobile obstacle changes over time in impact test, specific acquisition process are as follows:
When vehicle tyre and the mobile obstacle of changeability just contact in record actual collision test, the mobile obstacle of changeability is apart from ground
Elemental height and current initial time；
After vehicle tyre and changeability move obstacle relative motion in record actual collision test, when vehicle tyre stops operating,
The mobile obstacle of changeability is apart from the final height on ground and current final moment；
Deformable mobile obstacle in actual collision test is drawn according to elemental height, initial time, final height and final moment
Time-displacement curve.
4. the deformable mobile obstacle collision simulation method according to claim 3 based on CAE, which is characterized in that pass through
Following steps choose moving area:
Measure first in actual collision test between vehicle and the mobile obstacle collision vehicle in front tire core wheel of changeability and ground
Distance；
In deformable mobile virtual obstacle and virtual vehicle tire interface, and deformable mobile virtual obstacle and virtual vehicle wheel
When second distance between tire core wheel is equal with first distance, connecing between deformable mobile virtual obstacle and virtual vehicle tire
Contacting surface product is used as moving area.
5. the deformable mobile obstacle collision simulation method according to claim 4 based on CAE, which is characterized in that also wrap
Include: storage actual collision test is recorded a video and for target actual collision test result.
6. the deformable mobile obstacle collision simulation method according to claim 5 based on CAE, which is characterized in that mark
It is deformable mobile obstacle athletic posture to mark.
7. the deformable mobile obstacle collision simulation method according to claim 2 based on CAE, which is characterized in that practical
The displacement that deformable mobile obstacle changes over time in impact test, specific acquisition process are as follows:
When vehicle tyre and the mobile obstacle of changeability just contact in record actual collision test, the mobile obstacle of changeability is apart from ground
Elemental height and current initial time；
Record in actual collision test in the mobile obstacle relative movement of vehicle tyre and changeability, the mobile obstacle of changeability away from
Process height and current process moment from the ground；
After vehicle tyre and changeability move obstacle relative motion in record actual collision test, when vehicle tyre stops operating,
The mobile obstacle of changeability is apart from the final height on ground and current final moment；
Actual collision examination is drawn according to elemental height, initial time, process height, process moment, final height and final moment
The time-displacement curve of deformable mobile obstacle in testing.
8. the deformable mobile obstacle collision simulation method according to claim 7 based on CAE, which is characterized in that also wrap
It includes: if relative motion animation tests the inconsistent to mark result of video recording with actual collision, repainting in actual collision test
The time-displacement curve of deformable mobile obstacle, until the time-displacement curve meets the displacement of deformable mobile virtual obstacle
Until consistent to mark result.
9. the deformable mobile obstacle collision simulation method according to claim 1 based on CAE, which is characterized in that virtual
Vehicle is 64 ± 1km/h to the impact velocity of deformable mobile virtual obstacle.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It is realized when execution such as the step of any one of claim 1-9 the method.
Priority Applications (1)
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