CN102661841B - Dummy hip joint calibration system and method for automobile collision - Google Patents
Dummy hip joint calibration system and method for automobile collision Download PDFInfo
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- CN102661841B CN102661841B CN201210159733.0A CN201210159733A CN102661841B CN 102661841 B CN102661841 B CN 102661841B CN 201210159733 A CN201210159733 A CN 201210159733A CN 102661841 B CN102661841 B CN 102661841B
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- 210000004394 hip joint Anatomy 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 22
- 210000000689 upper leg Anatomy 0.000 claims abstract description 12
- 230000003028 elevating effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 11
- 230000000052 comparative effect Effects 0.000 claims description 5
- 210000004197 pelvis Anatomy 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 4
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 238000009863 impact test Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The invention discloses a dummy hip joint calibration system and method for automobile collision, belonging to the field of automobile safety detection. The system comprises a test table; a dummy hip joint fixing device is arranged on the test table; and a dummy hip joint is fixedly arranged on the test table through the dummy hip joint fixing device. The system further comprises a rocking arm, a force sensor, a rocking arm lifting device and a data processor; one end of the rocking arm extends into a thigh hole of the dummy and is fixedly connected with the hip joint of the dummy; the force sensor is movably connected with the rocking arm; the rocking arm lifting device is connected with the force sensor and is used for applying uplift force to the rocking arm; a comparing module in the data processor compares the stress data of the dummy hip joint acquired by the force sensor with a calibrated standard data, and then the calibration module calibrates the detected dummy hip joint. The system and method provided by the invention can be used for solving the problems that in the prior art, much more sensors are required for the calibration table of the existing dummy hip joint, the calculation is complex and error is easy to cause, and meanwhile, the cost and the maintenance cost are high.
Description
Technical field
The present invention relates to belong to automotive safety inspection side technical field, particularly for dummy's hip joint calibration system and the method for a kind of car crass of vehicle passive safety test, utilize this invention to confirm that the performance of dummy's hip joint meets standard-required.
Background technology
Vehicle impact testing belongs to the research category of vehicle passive safety, and its object is mainly the protective capability of vehicle to occupant in inspection collision process.The danger of impact test, make in test to use true man, foreign study mechanism, according to the quality size at the kinematic behavior of human body and each position etc., has manufactured dummy, it can replace human body to be used for vehicle impact testing, the injury situation that simulation true man are subject to.Before automobile real vehicle collision test carries out, because a variety of causes causes the data possibility misalignment of dummy inside, thereby need to demarcate dummy, for example in process of the test, adopt Hybrid III 50% male sex dummy's calibrating procedure to specify according to E part regulation and ECE R94 annex 10 in CFR 572 front touching; The calibrating procedure of Hybrid III 5% Female dummy is according to the part regulation in CFR 572; In addition, after China's new car assessment routine (C-NCAP) regulation dummy calibration test frequency is every 2 impact tests, should again demarcate, if a certain position injury of dummy index reaches in test or exceed the low performance limit value of regulation, this position also should be demarcated again.To ensure in test, dummy is true man's injured situation in simulated crash process as far as possible accurately, and then provides Data support to the security of automobile, dummy through demarcation by after can reuse.2010, the auto output of China occupied the first in the world, reached 1,800 ten thousand, and therefore China also strengthens the research dynamics to car crass performance, has set up multiple impact tests chamber, and has carried out a large amount of car load impact tests, has tentatively accumulated certain test experience.
Because testing dummy and calibration facility are mostly from external import at present, cost is high, versatility is poor, use is inconvenient, and domestic test and use research to dummy just carries out seldom at present, in the urgent need to dummy's calibration facility is carried out to independent research.
More existing dummy's hip joint calibrating table sensors are many, and calculation of complex easily causes error, and cost and maintenance cost are high simultaneously.
Summary of the invention
In order to solve, the dummy's hip joint calibrating table sensor existing in prior art is many, calculation of complex and easily cause error, and cost and the high problem of maintenance cost simultaneously, the invention provides a kind of car crass dummy's hip joint calibration system and method.
Described technical scheme is as follows:
On the one hand, provide a kind of car crass dummy's hip joint calibration system, comprised a stand, described stand is provided with dummy's hip joint stationary installation, and dummy's hip joint is fixed on described stand by described dummy's hip joint stationary installation, and described system also comprises:
Rocking arm, its one end is stretched into dummy's thigh hole and is fixedly connected with dummy's hip joint;
Power sensor, is flexibly connected with described rocking arm;
Rocking arm lifting apparatus, is connected with described power sensor, for described rocking arm is applied to lifting acting force;
Data processor, receives the information that described power sensor gathers, and its operation has comparison module and demarcating module;
Described comparison module is for receiving the stress data of dummy's hip joint that described power sensor gathers, and the distance rising according to described rocking arm lifting apparatus calculates moment and angle of elevation, then demarcates normal data with dummy's hip joint and compare;
Whether described demarcating module is qualified for out calibration check according to the comparative result of described comparison module to dummy's hip joint.
Described dummy's hip joint stationary installation comprises:
Bearing, removably connects with the upper surface of described stand, which is provided with dummy's mounting plate;
Back up pad, be fixed on the upper end of described bearing, and level is stretched out the upper end of described bearing;
Two screw rods, its one end is vertically fixed on the cantilever plate face of described back up pad, and its lower end is fixedly connected with dummy's pelvis.
Further, a side of described stand upwards extends to form the outrigger that protrudes its upper surface, and described outrigger is provided with guide rail, and described guide rail level is fixed on described outrigger, and described bearing and described guide rail are slidably connected.
Described rocking arm lifting apparatus comprises elevating lever and drive motor system, described elevating lever is vertically fixedly connected with described stand by an installing plate, described drive motor system is arranged at the lower end of described elevating lever, be used for driving described elevating lever along its axial lifting, described power sensor is fixed on the upper end of described elevating lever, described rocking arm is moulding one strip chute on its length direction, on described power sensor, fixes a connection piece, and described web member and described chute are slidably connected.
Further, on described web member, form U-shaped link slot, described rocking arm is arranged in U-shaped link slot, between described rocking arm and described web member, is connected by a bearing pin being fixed on described link slot cell wall, described bearing pin runs through the chute on described rocking arm, and is slidably connected with described chute.
Described dummy's hip joint is Hybrid III 50% male sex dummy's hip joint or Hybrid III 5% Female dummy hip joint.
On the other hand, the present invention also provides a kind of car crass dummy's hip joint scaling method, and described scaling method comprises the steps:
Step 1, is fixed on dummy's hip joint on stand, and the thigh hole of stretching into dummy by a rocking arm is connected with dummy's hip joint;
Step 2, lifting arm, and measure the power on rocking arm that acts under lifting angle, the distance rising according to rocking arm lifting apparatus calculates the angular dimension of moment and rising;
Step 3, under equal lifting angle, relatively institute's dummy's hip joint stress data of surveying and dummy's hip joint demarcation normal data;
Step 4, makes and demarcates judgement surveyed hip joint according to comparative result.
In described step 4 to surveyed hip joint make demarcate judgement, its specifically:
If dummy's hip joint stress data of surveying demarcate within the scope of normal data at dummy's hip joint, judge that dummy's hip joint is qualified;
If dummy's hip joint stress data of surveying do not demarcate normal data scope at dummy's hip joint, need make and check and repair dummy's hip joint.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The present invention only by single shaft to power sensor, can change the effect angle of rocking arm by rocking arm lifting apparatus, can multi-angle be demarcated by dummy's hip joint, effectively reduce number of sensors, surveyed data information and demarcation normal data are compared, it calculates simple, reduces the error of test findings, and cost and maintenance cost are low simultaneously.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is dummy's hip joint calibrating table entirety horse structure schematic diagram.
Fig. 2 is dummy's hip joint calibrating table stationary backplate apparatus structure schematic diagram.
Fig. 3 is dummy's hip joint lifting device structure schematic diagram.
In figure:
1-stand, 11-outrigger, 12-guide rail;
2-dummy's hip joint stationary installation, 21-bearing, 22-back up pad, 23-screw rod, 24-mounting plate, 25-fixed head;
3-rocking arm, 31-chute;
4-power sensor;
5-rocking arm lifting apparatus, 51-elevating lever, 52-drive motor system, 53-installing plate;
6-dummy's hip joint;
7-web member, 71-link slot, 72-bearing pin.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, the invention provides a kind of car crass dummy's hip joint calibration system, comprise a stand 1, dummy's hip joint stationary installation 2, rocking arm 3, power sensor 4, rocking arm lifting apparatus 5 and data processor, dummy's hip joint 6 is fixed on stand 1 by described dummy's hip joint stationary installation 2, and one end of rocking arm is stretched into dummy's thigh hole and is fixedly connected with dummy's hip joint; Power sensor 4 is flexibly connected by a connection piece 7 with rocking arm 3;
Rocking arm lifting apparatus 5 is connected with power sensor 4, for rocking arm 3 is applied to lifting acting force;
Data processor, the information that reception sensor 4 gathers, in it, operation has comparison module and demarcating module; Stress data and dummy's hip joint demarcation normal data that comparison module is used for dummy's hip joint 6 that power sensor is gathered compare; Demarcating module is made demarcation according to the comparing data of comparison module to dummy's hip joint 6.
As shown in Figure 2, dummy's hip joint stationary installation 2 comprises: bearing 21, back up pad 22 and two screw rods 23, one side of stand 1 upwards extends to form the outrigger 11 that protrudes its upper surface, outrigger 11 is provided with guide rail 12, guide rail 12 levels are fixed on outrigger 11, bearing 21 is slidably connected with the guide rail 12 of stand 1, is fixed with the mounting plate 24 for fixing dummy on the side of bearing; Back up pad 22 is fixed on the upper end of bearing 21, and level is stretched out the upper end of bearing 21; One end of two screw rods 23 is vertically fixed on the cantilever plate face of back up pad 22, and its lower end is fixedly connected with dummy's pelvis.
As shown in Figure 3; rocking arm lifting apparatus 5 comprises elevating lever 51 and drive motor system 52; elevating lever 51 is vertically fixedly connected with stand 1 by an installing plate 53; drive motor system 52 is arranged at the lower end of elevating lever 51; for driving elevating lever 51 along its axial lifting; power sensor 4 is fixed on the upper end of elevating lever 51, rocking arm 3 is moulding one strip chute 31 on its length direction, and the lower end of web member 7 is fixed on power sensor 4.
On web member 7 wherein, form U-shaped link slot 71; rocking arm 3 is arranged in U-shaped link slot 71; between rocking arm 3 and web member 7, be connected by a bearing pin 72 being fixed on link slot 71 cell walls; bearing pin 72 runs through the chute 31 on rocking arm 3; and be slidably connected with chute 31; when elevating lever 51 is under the driving of drive motor system 52 when lifting vertically, bearing pin slides and drives rocking arm 3 to change angle in chute, and then realizes the acting force adjustment to dummy.
The present invention's dummy's hip joint 6 used is Hybrid III 50% male sex dummy's hip joint or Hybrid III 5% Female dummy hip joint.
The present invention also provides a kind of car crass dummy's hip joint scaling method, and scaling method comprises the steps:
Step 1, is fixed on dummy's hip joint 6 on stand, and the thigh hole of stretching into dummy by a rocking arm is connected with dummy's hip joint 6;
Step 2, lifting arm, and measure the power on rocking arm that acts under lifting angle;
Step 3, relatively institute's dummy's hip joint stress data of surveying and dummy's hip joint demarcation normal data;
Step 4, makes and demarcates judgement surveyed hip joint according to comparative result.
In described step 4 to surveyed hip joint make demarcate judgement, its specifically:
If dummy's hip joint stress data of surveying demarcate within the scope of normal data at dummy's hip joint, judge that dummy's hip joint is qualified;
If dummy's hip joint stress data of surveying do not demarcate normal data scope at dummy's hip joint, need check reparation to dummy's hip joint.
Dummy's demarcation normal data requires as follows
For Hybrid III 50% male sex dummy
A., when the moment being subject at rocking arm is 203Nm, the angle of rocking arm should be within the scope of 10 °-50 °.
B. in the time that the angle of rocking arm is 30 °, the moment being subject on rocking arm should be less than 95Nm.
For Hybrid III 5% Female dummy
A., when the moment being subject at rocking arm is 55Nm, the angle of rocking arm should be within the scope of 40 °-50 °.
B. in the time that the angle of rocking arm is 30 °, the moment being subject on rocking arm should be less than 43Nm.
Calibration process is as described below: first Hybrid III50% male sex dummy stationary backplate is arranged on stand 1, then dummy's hip joint 6 is fixed on mounting plate 24 (if while demarcating Hybrid III 5% Female dummy, because both size differences need change fixing mounting plate into fix Hybrid III 5% Female dummy hip joint Special fixing plate), when mounted two screw rods that are connected with pelvis 23 and dummy's pelvis are tightened, by dummy's hip joint 6 below four bolts hole be bolted on mounting plate 24.After fixing, need to guarantee to be totally released the gland nut of two adjusting thigh elasticities in hip joint, otherwise very easily hip joint is caused to damage in calibration process, to the elevating lever 51 of power sensor 4 be housed and be connected with the rocking arm 3 of sliding grain 31, then rocking arm 3 is connected with dummy's thigh to be calibrated, method of attachment is: rocking arm 3 one end are pushed in dummy's thigh hole, in installation process, can move left and right hip joint to can install better along guide rail 12, then use thigh coupling bolt that rocking arm 3 and hip joint are coupled together and tightened, mention rocking arm 3 and move left and right hip joint, guarantee that the arm of force of rocking arm 3 is just positioned at the centre position of rocking arm 3.The fixed head 25 being fixed on bearing 21 is fixedly connected with guide rail 12 by clamp nut, it can not be moved left and right, connection data acquisition system power supply, the input information that power sensor used in demarcating is gathered is in data processor 6.By contrasting with the normal data of calibration request, whether dummy's hip joint 6 is qualified for out to calibration check.
By moving left and right dummy's hip joint stationary installation 2, rocking arm 3 one end can be pushed respectively in dummy's the right and left thigh hole, hip joint the right and left is carried out to calibration check.
The present invention is not limited to above-mentioned embodiment, and shape, change hip joint stationary backplate structure and the change elevating lever shape and structure of change support is all a kind of distortion of the present invention, all should think within protection domain of the present invention.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. dummy's hip joint calibration system for car crass, comprise a stand (1), described stand (1) is provided with dummy's hip joint stationary installation (2), dummy's hip joint is fixed on described stand (1) by described dummy's hip joint stationary installation (2), it is characterized in that, described system also comprises:
Rocking arm (3), its one end is stretched into dummy's thigh hole and is fixedly connected with dummy's hip joint;
Power sensor (4), is flexibly connected with described rocking arm (3);
Rocking arm lifting apparatus (5), is connected with described power sensor (4), for described rocking arm (3) is applied to lifting acting force;
Data processor, receives the information that described power sensor (4) gathers, and in it, operation has comparison module and demarcating module; Described comparison module is for receiving the stress data of dummy's hip joint that described power sensor gathers, and the distance rising according to described rocking arm lifting apparatus calculates moment and angle of elevation, then demarcates normal data with dummy's hip joint and compare; Whether described demarcating module is qualified for out calibration check according to the comparative result of described comparison module to dummy's hip joint.
2. dummy's hip joint calibration system for car crass according to claim 1, is characterized in that,
Described dummy's hip joint stationary installation (2) comprising:
Bearing (21), removably connects with the upper surface of described stand (1), which is provided with dummy's mounting plate (24);
Back up pad (22), be fixed on the upper end of described bearing (21), and level is stretched out the upper end of described bearing (21);
Two screw rods (23), its one end is vertically fixed on the cantilever plate face of described back up pad (22), and its lower end is fixedly connected with dummy's pelvis.
3. dummy's hip joint calibration system for car crass according to claim 2, is characterized in that,
One side of described stand (1) upwards extends to form the outrigger (11) that protrudes its upper surface, described outrigger (11) is provided with guide rail (12), it is upper that described guide rail (12) level is fixed on described outrigger (11), and described bearing (21) is slidably connected with described guide rail (12).
4. according to the arbitrary described car crass of claim 1-3 dummy's hip joint calibration system, it is characterized in that,
Described rocking arm lifting apparatus (5) comprises elevating lever (51) and drive motor system (52), described elevating lever (51) is vertically fixedly connected with described stand (1) by an installing plate (53), described drive motor system (52) is arranged at the lower end of described elevating lever (51), be used for driving described elevating lever (51) along its axial lifting, described power sensor (4) is fixed on the upper end of described elevating lever (51), described rocking arm (3) is moulding one strip chute (31) on its length direction, the upper fixing a connection piece (7) of described power sensor (4), described web member (7) is slidably connected with described chute (31).
5. dummy's hip joint calibration system for car crass according to claim 4, is characterized in that,
On described web member (7), form U-shaped link slot (71), described rocking arm (3) is arranged in U-shaped link slot (71), between described rocking arm (3) and described web member (7), be connected by a bearing pin (72) being fixed on described link slot (71) cell wall, described bearing pin (72) runs through the chute (31) on described rocking arm (3), and is slidably connected with described chute (31).
6. according to claim 1-3 or 5 arbitrary described car crass dummy's hip joint calibration systems, it is characterized in that,
Described dummy's hip joint is Hybrid III50% male sex dummy's hip joint or Hybrid III5% Female dummy hip joint.
7. dummy's hip joint scaling method for car crass, described scaling method comprises the steps:
Step 1, is fixed on dummy's hip joint on stand, it is characterized in that, described scaling method also comprises:
The thigh hole of stretching into dummy by a rocking arm is connected with dummy's hip joint;
Step 2, lifting arm, and measure the power on rocking arm that acts under lifting angle;
Step 3, under equal lifting angle, relatively institute's dummy's hip joint stress data of surveying and dummy's hip joint demarcation normal data;
Step 4, makes and demarcates judgement surveyed hip joint according to comparative result.
8. dummy's hip joint scaling method for car crass according to claim 7, is characterized in that,
In described step 4 to surveyed hip joint make demarcate judgement, its specifically:
If dummy's hip joint stress data of surveying falls into dummy's hip joint and demarcates within the scope of normal data, judge that dummy's hip joint is qualified;
Demarcate normal data scope if dummy's hip joint stress data of surveying exceeds dummy's hip joint, need make demarcation to dummy's hip joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210159733.0A CN102661841B (en) | 2012-05-22 | 2012-05-22 | Dummy hip joint calibration system and method for automobile collision |
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| CN201210159733.0A CN102661841B (en) | 2012-05-22 | 2012-05-22 | Dummy hip joint calibration system and method for automobile collision |
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| CN102661841A CN102661841A (en) | 2012-09-12 |
| CN102661841B true CN102661841B (en) | 2014-11-26 |
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| CN102853955A (en) * | 2012-09-29 | 2013-01-02 | 济南大学 | Straight travel electric actuating mechanism thrust detection device |
| CN104101475A (en) * | 2014-07-29 | 2014-10-15 | 湖南大学 | Combined feet and hip joint calibration testing device for dummy for automobile collision |
| CN104833526A (en) * | 2015-05-06 | 2015-08-12 | 清华大学苏州汽车研究院（相城） | Automotive crash test dummy hip joint calibration device |
| CN105043707B (en) * | 2015-05-29 | 2018-05-08 | 苏州东菱科技有限公司 | Can central controlled dummy calibration pilot system |
| CN105181286B (en) * | 2015-05-29 | 2017-12-08 | 苏州东菱科技有限公司 | Dummy's hip joint rating test device |
| CN106053045B (en) * | 2016-07-08 | 2019-12-06 | 上海大学 | Hip joint angle measuring device |
| CN110823721B (en) * | 2018-08-09 | 2022-08-05 | 湖南赛孚汽车科技股份有限公司 | TNO-10 dummy trunk calibration device and calibration method |
| CN110686910A (en) * | 2019-11-15 | 2020-01-14 | 天津瑷睿赛福科技有限公司 | Car bump test dummy hip joint calibration equipment |
| CN110658002A (en) * | 2019-11-20 | 2020-01-07 | 天津瑷睿赛福科技有限公司 | Dummy lumbar vertebra measuring tool for automobile crash test |
| CN116576819B (en) * | 2023-07-12 | 2023-09-15 | 中国汽车技术研究中心有限公司 | Tool and method for measuring parallelism and angle of lower leg framework of automobile crash dummy |
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