CN104931221B - Dummy's lower limb impact test method - Google Patents
Dummy's lower limb impact test method Download PDFInfo
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- CN104931221B CN104931221B CN201510315439.8A CN201510315439A CN104931221B CN 104931221 B CN104931221 B CN 104931221B CN 201510315439 A CN201510315439 A CN 201510315439A CN 104931221 B CN104931221 B CN 104931221B
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- dummy
- lower limb
- foot
- loading device
- thigh
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Abstract
The invention discloses a kind of dummy's lower limb impact test method, using dummy's lower limb impact test equipment, it includes impact test object apparatus, dummy's lower limb, guide rail, carriage, foot's loading device, loading device, arresting stop, sensor group and host computer；Step 1, preparation；Step 2, loading procedure；Step 3, release process；Step 4. data acquisition and analysis.Energy accurate simulation dummy lower limb of the invention and Vehicular instrument panel, the dynamic impulsion process on floor, Value Data is injured by gathering the dummy's lower limb in process of the test, and the injury that can be caused to lower limb of passenger to Vehicular instrument panel, floor and foot pad etc. carries out rapid evaluation.
Description
Technical field
The invention belongs to automotive crash safety technology, and in particular to a kind of dummy's lower limb impact test method.
Background technology
Today of social concerns is increasingly subject in automotive safety, is automobile production for passenger provides comprehensive protection
The target that enterprise strives for.Structure design of the collision safety performance of automobile not only to vehicle body is related, also with it is in-car each
The structure of interior facing, material are closely related.When automobile occurs head-on crash, stopping gradually being deformed with vehicle body, occupant can be relative
Vehicle body is moved forward, and front-row occupant lower limb collide with instrument board, while foot's meeting of front-row occupant and car in collision process
Body floor and carpet are contacted, if the moulding of instrument panel stiffness, carpet and foot pad and rigidity is improper will result in lower limb of passenger
Damage.In each automotive safety appraisement system, the lower limb injury of dummy is also the importance investigated, and has become damage
One of position the most serious, it is seen then that design moulding and the suitable fascia of rigidity, carpet and foot pad to lower limb of passenger
Protection it is most important.
Traditional method of testing, a kind of is a kind of survey of the knee area of vehicle rigidity recorded such as the U of CN 201637558
Trial assembly is put, and instrument board is impacted using the impactor of simulation knee shape, the rigidity of test board.But the method for testing
Can only obtain the rigidity information of instrument board, it is impossible to injury of the reflection to dummy's shank.Another be use dummy thigh and
Calf module, and dummy's ankle is fixed, thigh end to be impacted, the method can to a certain extent reflect that dummy is big
The injury values of leg and knee, but cannot effectively reflect the injury values of dummy's shank.
Therefore, it is necessary to develop a kind of new dummy's lower limb impact test method.
The content of the invention
It is an object of the invention to provide a kind of dummy's lower limb impact test method, can accurate simulation dummy lower limb and vehicle instrument
Dash board, the dynamic impulsion process on floor, Value Data is injured by gathering the dummy's lower limb in process of the test, can be to vehicular meter
The injury that plate, floor and foot pad etc. are caused to lower limb of passenger carries out rapid evaluation.
Dummy's lower limb impact test method of the present invention, using dummy's lower limb impact test equipment, dummy's lower limb
Impact test equipment includes：
Impact test object apparatus, it includes fixed support, and is fixed on car body component, vehicle instrument on fixed support
Dash board and floor, for state of the mimic board assembly on vehicle；
Dummy's lower limb, it includes thigh, the shank being connected with thigh, and the foot being connected with shank, whole for simulating
The attitude of dummy's respective leg portions in car experiment；
Guide rail, it is horizontally disposed in left-right direction, and guide rail is located at the right side of impact test object apparatus；
Carriage, it includes thigh connecting elements and sliding component, one end and dummy's lower limb of the thigh connecting elements
Thigh connection, the other end of thigh connecting elements be connected with sliding component, and sliding component is connected with guide rail and energy edge is led
Horizontally slipped to track；
Foot's loading device, it includes pushing member and ways, and upper end and the carriage of the pushing member connect
Connect, the lower end of pushing member is connected with the right-hand member of ways, limiting plate, dummy's lower limb are provided with the left part of ways
Foot be placed on ways and positioned at the left side of limiting plate；
Loading device, for driving carriage to be moved along guide rail, after dummy's lower limb are loaded into predetermined speed with
Carriage is separated；
Arresting stop, the arresting stop is arranged on the right side on floor, and arresting stop can be with the guiding of foot's loading device
The left end of component is corresponding or contacts, and before dummy's lower limb and Vehicular instrument panel collision, the arresting stop can add with foot
Carry and put collision so that foot's loading device departs from from carriage, while the foot of dummy's lower limb is departed from foot loading
Device is slided on floor and continuation is slided to the left；
Sensor group, including multiple sensors on dummy's lower limb, for detecting dummy's lower limb in collision process
In injury Value Data；
Host computer, for gathering and processing the injury Value Data that each sensor is detected；
Described method is comprised the following steps：
Step 1, preparation
Attitude according to dummy's respective leg portions in complete vehicle test is adjusted to the angle and foot position of dummy's lower limb, makes
The attitude of the pose adjustment of dummy's lower limb dummy's leg into being tested with actual collision is consistent, and each sensor is arranged under dummy
On limb, the counterweight needed for installing test on carriage；
Step 2, loading procedure
Loading device drives carriage and foot's loading device along guide rail to left movement, reaches dummy's lower limb pre-
If speed, after dummy's lower limb reach pre-set velocity, loading device is separated with carriage；
Step 3, release process
When arresting stop is in contact with the pushing member of foot loading device, foot's loading device and carriage point
From, making the foot of dummy's lower limb art skating on floor, the thigh of dummy's lower limb continues edge together with carriage and counterweight leads
To track art skating, until dummy's lower limb are collided with Vehicular instrument panel and floor；
Step 4, data acquisition and analysis
Host computer gathers dummy's lower limb and is detected with each sensor in the middle of Vehicular instrument panel and floor impact process
Injury Value Data, and the injury values of dummy's lower limb are estimated based on described injury Value Data.
The interface for installing counterweight is provided with the carriage, for needing to install different quality according to experiment
Configuration.
Using rotary gemel connection, the thigh connecting elements and thigh between the thigh connecting elements and sliding component
Between using being rigidly connected；The setting angle of thigh can be adjusted, and makes the thigh can be with around hinge point freedom in collision process
Rotate, it is ensured that thigh is identical with the movement relation of dummy's thigh and pelvis with the movement relation of carriage.
The sensor group includes：
Thigh force snesor, is installed on dummy's lower limb thigh position, for measuring dummy thighbone power；
Knee joint slides quantity sensor, dummy's lower limb knee joint position is installed on, for measuring dummy's knee joint slippage；
Shin bone power and moment of flexure sensor, are installed on the upper and lower ends of dummy's lower limb shin bone, the power for measuring dummy's shin bone
And moment of flexure；
Foot acceleration transducer, is installed in dummy's sole, the acceleration for measuring dummy's foot.
Dummy's lower limb are using unilateral dummy's lower limb.
The present invention has advantages below：
（1）Value Data is injured by gathering the dummy's lower limb in process of the test, can be to Vehicular instrument panel, floor and foot pad
Rapid evaluation is carried out Deng the injury caused to lower limb of passenger；
（2）Dummy's lower limb impact test is carried out using experimental facilities of the invention, can preferably reflect complete automobile collision
The injury values of middle dummy leg, compared to using complete automobile collision test or sled test can reduce vehicle research and develop in experiment into
This；
（3）Using testing equipment of the invention, instrument board and carpet design can be quickly verified in research and development early stage
To the protecting effect of occupant, the research and development time is shortened.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Dummy's lower limb impact test method as shown in Figure 1, using dummy's lower limb impact test equipment, dummy's lower limb punching
Hit testing equipment including impact test object apparatus, dummy's lower limb 11, guide rail 8, carriage, foot's loading device, plus
Carry put, arresting stop 4, sensor group and host computer.
Impact test object apparatus include fixed support, and are fixed on the car body component 1, vehicular meter on fixed support
Plate 2 and floor 3, for state of the mimic board assembly on vehicle.
Using unilateral dummy's lower limb, it includes thigh to dummy's lower limb 11, the shank being connected with thigh, and is connected with shank
Foot, the attitude for simulating dummy's respective leg portions in complete vehicle test.
Guide rail 8 is horizontally disposed in left-right direction, and guide rail 8 is located at the right side of impact test object apparatus.
Carriage includes thigh connecting elements 10 and sliding component 9, under one end of the thigh connecting elements 10 and dummy
The thigh of limb 11 is connected between the other end and sliding component 9 of thigh connecting elements 10 using being rigidly connected using rotary gemel,
The setting angle of thigh can be adjusted, and thigh is freely rotated with around hinge point in collision process, it is ensured that thigh with
The movement relation of carriage is identical with the movement relation of dummy's thigh and pelvis.Sliding component 9 is connected with guide rail 8（Than
Such as, sliding component 9 is enclosed within guide rail 8）And can be horizontally slipped along guide rail 8.It is provided with for pacifying on carriage
The interface of weight is assembled, the counterweight for installing different quality under different operating modes.
Foot's loading device includes pushing member 7 and ways 5, and upper end and the carriage of the pushing member 7 connect
Connect, make foot's loading device synchronous with carriage；The lower end of pushing member 7 is connected with the right-hand member of ways 5, is being oriented to structure
The left part of part 5 is provided with limiting plate 6, and the foot of dummy's lower limb 11 is placed on ways 5 and positioned at a left side for limiting plate 6
Side.
Loading device is used to drive carriage to be moved along guide rail 8（Moved to A directions）, when dummy's lower limb 11 add
Separated with carriage after being downloaded to predetermined speed.
Arresting stop 4 is arranged on the right side on floor 3, and arresting stop 4 can be with a left side for the ways 5 of foot loading device
End is corresponding or contacts, and before dummy's lower limb 11 and Vehicular instrument panel 2 are collided, the arresting stop 4 can be loaded with foot and filled
Put collision so that foot's loading device departs from from carriage（Need to ensure that foot's loading device does not occur resilience）, while making
The foot of dummy's lower limb 11 departs from foot's loading device and slides on floor 3 and continue to slide to the left.
Sensor group includes multiple sensors on dummy's lower limb 11, for detecting that dummy's lower limb 11 were being collided
Injury Value Data in journey, in the present embodiment, sensor group includes thigh force snesor, is installed on dummy's lower limb thigh position of bone
Put, for measuring dummy thighbone power；Knee joint slides quantity sensor, dummy's lower limb knee joint position is installed on, for measuring
Dummy's knee joint slippage；Shin bone power and moment of flexure sensor, are installed on the upper and lower ends of dummy's lower limb shin bone, for measuring dummy
The power and moment of flexure of shin bone；Foot acceleration transducer, is installed in dummy's sole, the acceleration for measuring dummy's foot.
Host computer is used to gathering and processing the injury Value Data that each sensor is detected.
Dummy's lower limb impact test method of the present invention is comprised the following steps：
Step 1, preparation
Attitude according to dummy's respective leg portions in complete vehicle test is adjusted to the angle and foot position of dummy's lower limb 11,
Make the pose adjustment of dummy's lower limb 11 to consistent with the attitude of dummy's leg in actual collision experiment, test is installed on carriage
Required counterweight, the demand according to different operating modes in the different quality of the thigh backend arrangement of dummy's lower limb 11, while by each biography
Sensor is arranged on dummy's lower limb 11.
Step 2, loading procedure
Loading device drives carriage and foot's loading device along guide rail 8 to left movement, reaches dummy's lower limb 11
To pre-set velocity, and thigh, shank and foot are loaded concurrently pre-set velocity, after dummy's lower limb 11 reach pre-set velocity,
Loading device is separated with carriage.
Step 3, release process
When arresting stop 4 is in contact with the pushing member 7 of foot loading device, foot's loading device and carriage point
From, making the foot of dummy's lower limb 11 art skating on floor 3, the thigh of dummy's lower limb 11 is together with carriage and counterweight continuation
Along the art skating of guide rail 8, until dummy's lower limb 11 are collided with Vehicular instrument panel 2 and floor 3, floor 3 can be white body,
Can also be that vehicle carpet is mounted with white body.
Step 4, data acquisition and analysis
Host computer collection dummy lower limb 11 are examined with each sensor in the middle of Vehicular instrument panel 2 and the knockout process of floor 3
The injury Value Data of survey, the injury values data are including but not limited to the big leg strength of dummy, dummy's knee joint slippage, dummy's shin bone
Power, dummy's shin bone moment of flexure and dummy's foot acceleration, and commented according to collision regulation and third party based on described injury Value Data
The accurate injury values to dummy's lower limb 11 of price card are estimated.
Claims (4)
1. a kind of dummy's lower limb impact test method, it is characterised in that：Using dummy's lower limb impact test equipment, dummy's lower limb
Impact test equipment includes：
Impact test object apparatus, it includes fixed support, and is fixed on the car body component on fixed support（1）, vehicle instrument
Dash board（2）And floor（3）, for state of the mimic board assembly on vehicle；
Dummy's lower limb（11）, it includes thigh, the shank being connected with thigh, and the foot being connected with shank, whole for simulating
The attitude of dummy's respective leg portions in car experiment；
Guide rail（8）, it is horizontally disposed in left-right direction, and guide rail（8）Positioned at the right side of impact test object apparatus；
Carriage, it includes thigh connecting elements（10）And sliding component（9）, the thigh connecting elements（10）One end with it is false
People's lower limb（11）Thigh connection, thigh connecting elements（10）The other end and sliding component（9）Connection, sliding component（9）With
Guide rail（8）Connection simultaneously can be along guide rail（8）Horizontally slip；
Foot's loading device, it includes pushing member（7）And ways（5）, the pushing member（7）Upper end with slide fill
Put connection, pushing member（7）Lower end and ways（5）Right-hand member connection, in ways（5）Left part be provided with limiting plate
（6）, dummy's lower limb（11）Foot be placed on ways（5）Above and positioned at limiting plate（6）Left side；
Loading device, for driving carriage along guide rail（8）Motion, when dummy's lower limb（11）After being loaded into predetermined speed
Separated with carriage；
Arresting stop, the arresting stop is arranged on floor（3）Right side, and arresting stop can be with the guiding structure of foot's loading device
Part（5）Left end it is corresponding or contact, in dummy's lower limb（11）With Vehicular instrument panel（2）Before collision, the arresting stop energy
With foot's loading device collision so that foot's loading device departs from from carriage, while making dummy's lower limb（11）Foot
Depart from foot's loading device and slide into floor（3）Go up and continue to slide to the left；
Sensor group, including：
Thigh force snesor, is installed on dummy's lower limb thigh position, for measuring dummy thighbone power；
Knee joint slides quantity sensor, dummy's lower limb knee joint position is installed on, for measuring dummy's knee joint slippage；
Shin bone power and moment of flexure sensor, are installed on the upper and lower ends of dummy's lower limb shin bone, for measuring the power of dummy's shin bone and curved
Square；
Foot acceleration transducer, is installed in dummy's sole, the acceleration for measuring dummy's foot；
Host computer, for gathering and processing the injury Value Data that each sensor is detected；
Described method is comprised the following steps：
Step 1, preparation
Attitude according to dummy's respective leg portions in complete vehicle test is to dummy's lower limb（11）Angle and foot position be adjusted, make
Dummy's lower limb（11）Pose adjustment to consistent with the attitude of dummy's leg in actual collision experiment, and each sensor is arranged on false
People's lower limb（11）On, the counterweight needed for installing test on carriage；
Step 2, loading procedure
Loading device drives carriage and foot's loading device along guide rail（8）To left movement, make dummy's lower limb（11）Reach
To pre-set velocity, when dummy's lower limb（11）After reaching pre-set velocity, loading device is separated with carriage；
Step 3, release process
When arresting stop and the pushing member of foot's loading device（7）When being in contact, foot's loading device is separated with carriage,
Make dummy's lower limb（11）Foot on floor（3）Upper art skating, dummy's lower limb（11）Thigh together with carriage and counterweight
Continue along guide rail（8）Art skating, until dummy's lower limb（11）With Vehicular instrument panel（2）And floor（3）Collision；
Step 4, data acquisition and analysis
Host computer gathers dummy's lower limb（11）With Vehicular instrument panel（2）And floor（3）Each sensor institute in the middle of knockout process
The injury Value Data of detection, and based on described injury Value Data to dummy's lower limb（11）Injury values be estimated.
2. dummy's lower limb according to claim 1（11）Impact test method, it is characterised in that：Set on the carriage
It is equipped with the interface for installing counterweight（12）.
3. dummy's lower limb impact test method according to claim 1 and 2, it is characterised in that：The thigh connecting elements
（10）With sliding component（9）Between using rotary gemel connect, the thigh connecting elements（10）Using rigidity between thigh
Connection.
4. dummy's lower limb impact test method according to claim 1 and 2, it is characterised in that：Dummy's lower limb（11）
Using unilateral dummy's lower limb.
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| CN201510315439.8A CN104931221B (en) | 2015-06-09 | 2015-06-09 | Dummy's lower limb impact test method |
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| CN201510315439.8A CN104931221B (en) | 2015-06-09 | 2015-06-09 | Dummy's lower limb impact test method |
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| CN104931221A CN104931221A (en) | 2015-09-23 |
| CN104931221B true CN104931221B (en) | 2017-06-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380442A (en) * | 2018-12-29 | 2020-07-07 | 观致汽车有限公司 | Instrument board model design checking method and instrument board model design checking system |
| CN112098111A (en) * | 2020-07-31 | 2020-12-18 | 东风延锋汽车饰件系统有限公司 | Device for verifying knee collision performance of automobile instrument panel and pulley test bed |
| CN112113775A (en) * | 2020-08-14 | 2020-12-22 | 东风延锋汽车饰件系统有限公司 | Tool, device and method for testing knee collision performance of automobile instrument panel |
| CN112807124B (en) * | 2021-02-09 | 2024-04-16 | 天津理工大学 | Knee joint impact simulation loading device |
| CN115855424A (en) * | 2023-02-27 | 2023-03-28 | 中国汽车技术研究中心有限公司 | Device and method for testing ankle injury of automobile crash dummy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200152223Y1 (en) * | 1996-12-23 | 1999-07-15 | 양재신 | Impact tester for instrument panel of a car |
| DE10107016A1 (en) * | 2001-02-15 | 2002-08-29 | Volkswagen Ag | Knee impact simulator has rocker which pivots towards front car-body in event of crash owing to inertia |
| DE202005010466U1 (en) * | 2005-06-30 | 2005-09-29 | Eyrainer Gmbh & Co. Kg | Knee protector test unit for car development has acceleration slide with adjustable height leg model, instrument panel and foot barrier |
-
2015
- 2015-06-09 CN CN201510315439.8A patent/CN104931221B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200152223Y1 (en) * | 1996-12-23 | 1999-07-15 | 양재신 | Impact tester for instrument panel of a car |
| DE10107016A1 (en) * | 2001-02-15 | 2002-08-29 | Volkswagen Ag | Knee impact simulator has rocker which pivots towards front car-body in event of crash owing to inertia |
| DE202005010466U1 (en) * | 2005-06-30 | 2005-09-29 | Eyrainer Gmbh & Co. Kg | Knee protector test unit for car development has acceleration slide with adjustable height leg model, instrument panel and foot barrier |
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| CN104931221A (en) | 2015-09-23 |
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