CN206470064U - Vehicle impact testing chassis - Google Patents
Vehicle impact testing chassis Download PDFInfo
- Publication number
- CN206470064U CN206470064U CN201621432825.1U CN201621432825U CN206470064U CN 206470064 U CN206470064 U CN 206470064U CN 201621432825 U CN201621432825 U CN 201621432825U CN 206470064 U CN206470064 U CN 206470064U
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- China
- Prior art keywords
- drag link
- link
- chassis
- impact testing
- vehicle impact
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- 238000009863 impact test Methods 0.000 title claims abstract description 44
- 238000002474 experimental method Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
A kind of vehicle impact testing chassis, including left longeron, right vertical beam and anti-collision beam, the left longeron has the first link position, the right vertical beam has the second link position, along the length direction of experiment chassis, the distance of first link position to the anti-collision beam is more than or equal to second link position to the distance of the anti-collision beam；The experiment chassis also includes drag link, and the two ends of the drag link are fixedly connected in first link position, the second link position with the left longeron, right vertical beam respectively.The vehicle impact testing chassis of the technical program is in the experiment of automotive front offset collision, conquassation deformation occurs for left longeron, and drag link after the link position of left longeron with moving so that drag link is stretched, and active force is transferred to right vertical beam, so as to play a part of the left longeron deformation of constraint.
Description
Technical field
The utility model is related to vehicle impact testing technical field, and in particular to a kind of vehicle impact testing chassis.
Background technology
Automotive body structure is a very important link during automotive safety is evaluated safely.In order to ensure the safety of vehicle
Performance, before putting into production, the performance of reply vehicle does dynamic check, to evaluate the comprehensive strength of each test component during collision
With compressive stroke resiliency.Carrying out impact test using entity car can make result of the test more accurate, but its experimentation cost phase
Work as costliness.
During automotive front offset collision experiment (Offset Deformable Barrier, ODB), in order to reduce examination
Cost is tested, vehicle impact testing chassis is commonly used and replaces entity car to implement impact test.In the experiment of automotive front offset collision, one
Aspect, the left longeron of vehicle impact testing chassis is easier occur conquassation deformation；On the other hand, the left longeron root of chassis is tested
Easily occur bending, cause experiment chassis to topple over unstable phenomenon；Biased it is thus impossible to accurately show automobile in front portion
Crashworthiness in impact test.
Utility model content
The problem of the utility model is solved is that existing vehicle impact testing chassis can not accurately show automobile preceding
Crashworthiness in portion's offset collision experiment.
To solve the above problems, the utility model provides a kind of vehicle impact testing chassis, including left longeron, right vertical beam and
Anti-collision beam, the left longeron has the first link position, and the right vertical beam has the second link position, along the length of experiment chassis
Direction is spent, the distance of first link position to the anti-collision beam is more than or equal to second link position and prevented to described
Hit the distance of crossbeam；The experiment chassis also includes drag link, the two ends of the drag link respectively first link position,
Second link position is fixedly connected with the left longeron, right vertical beam.
Optionally, first link position is arranged in the join domain of engine mounting and left longeron, and described second
Link position is arranged in the join domain of engine mounting and right vertical beam.
Optionally, the left longeron has first support, one end for being fixedly connected with the drag link；The right vertical beam
With second support, the other end for being fixedly connected with the drag link.
Optionally, the drag link is welded to connect or is threadedly coupled with the first support.
Optionally, the drag link is welded to connect or is threadedly coupled with the second support.
Optionally, the drag link and the failure ability of first support connection are between 10kN-40kN；And/or, institute
State drag link and the second support connection failure ability between 10kN-40kN.
Optionally, the fracture energy of the drag link is between 10kN-40kN.
Optionally, the drag link includes the first pull bar and the second pull bar, and first pull bar is fixedly connected with described first
Support, second pull bar is fixedly connected with the second support；First pull bar, the second pull bar are connected by connecting portion, institute
The fracture energy of connecting portion is stated between 10kN-40kN.
Optionally, the fracture energy of the connecting portion is between 20kN-30kN.
Optionally, first pull bar is pipe, and second pull bar is pipe, and the connecting portion is the first pull bar, the
The section tubular wall that two pull bars extend along its length.
Optionally, the drag link uses steel material, and the thickness of the connecting portion is between 2mm-4mm, the connection
The width in portion is between 32mm-40mm.
Compared with prior art, the technical solution of the utility model has advantages below：
The vehicle impact testing chassis of the technical program has a drag link, and drag link and left longeron link position to anti-
The distance for hitting crossbeam is more than or equal to the link position of drag link and right vertical beam to the distance of anti-collision beam；That is, along vapour
The length direction of car crash test table vehicle, the link position of drag link and left longeron more posteriorly, the connection position of pull bar and right vertical beam
Put and be located further forward；Or two positions are in same level, i.e., drag link is parallel to anti-collision beam.
The vehicle impact testing chassis of the technical program is in the experiment of automotive front offset collision, and left longeron occurs conquassation and become
Shape, drag link after the link position of left longeron with being moved so that drag link is stretched, and active force is transferred into right vertical beam, so that
Play a part of the left longeron deformation of constraint.Therefore, drag link connects with left-right longeron in the technical program vehicle impact testing chassis
What is connect functions as the effect that the power assembly such as engine is connected by engine mounting with left-right longeron in entity car；Pass through
Control fracture failure ability of the drag link in collision process, it becomes possible to accurately show being biased in front portion for entity car
Crashworthiness in impact test.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of the utility model specific embodiment vehicle impact testing chassis；
Fig. 2 is the top view of the utility model specific embodiment vehicle impact testing chassis longeron and drag link；
Fig. 3 is the three-dimensional structure diagram of the utility model specific embodiment vehicle impact testing chassis drag link；
Fig. 4 is the front view of the utility model specific embodiment vehicle impact testing chassis drag link.
Embodiment
The experiment of automotive front offset collision can be using entity car and experiment chassis.It is inclined that automotive front is carried out using entity car
Impact test is put, due to being provided with the power assemblies such as engine, speed changer between the left and right longeron of entity car, and by starting
Machine suspension is connected with left longeron, right vertical beam respectively.Because the runway of China is on right side, the position of driver is on a left side for automobile
Side, impact test standard regulation：The position of collision of automotive front offset collision experiment is in the left side of automobile.In automotive front biasing
During impact test, conquassation deformation occurs for the left longeron of entity car, and can be total by engine mounting, power by impact
Into right vertical beam is transferred to, so as to alleviate the deformation of left longeron.
The vehicle impact testing chassis of prior art is generally comprised：Left longeron, right vertical beam, are respectively fixedly disposed at left vertical
Beam, the left energy-absorption box of right vertical beam front end, right energy-absorption box, and it is fixedly installed on left energy-absorption box, the anticollision horizontal stroke of right energy-absorption box front end
Beam.Compared to entity car, experiment chassis does not have engine, speed changer equal power device；Thus tested in anterior offset collision
Cheng Zhong, left longeron is not constrained by right vertical beam, and left longeron is easier occur conquassation deformation；Moreover, the left longeron of experiment chassis exists
Bending easily occurs for its root position, causes longeron to topple over unstable phenomenon in process of the test.
Vehicle impact testing chassis of the present utility model reaches that the left longeron of solution is easier to occur by simulating entity car
Conquassation is deformed, and experiment chassis topples over the phenomenon of unstability in process of the test.It is specific to pass through the increase between left-right longeron
Drag link connecting the two, and fill the power such as drag link and collision failure ability and engine, speed changer therebetween
The failure ability put between left-right longeron is similar.
It is understandable to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.
Left, right, front and rear described in the utility model, refer both to each part and are attached to after vehicle impact testing chassis, with testing stand
The left, right, front and rear of car are used as benchmark.
Reference picture 1, the present embodiment provides a kind of vehicle impact testing chassis 10, including left longeron 2a, right vertical beam 2b and anti-
Hit crossbeam 5；There is left longeron 2a the first link position aa, right vertical beam 2b to have the second link position bb, along experiment chassis 10
Length direction x, the first link position aa to anti-collision beam 5 distance are more than or equal to the second link position bb to anti-collision beam 5
Distance.
When the first link position aa to anti-collision beam 5 distance is more than the second link position bb to the distance of anti-collision beam 5
When, i.e. relatively more posteriorly, the second link position bb is relative to be located further forward the first link position aa；As the first link position aa to anticollision
The distance of crossbeam 5 be equal to the second link position bb to anti-collision beam 5 apart from when, i.e. the first link position aa and the second connection position
Bb line is put parallel to anti-collision beam 5.
Testing chassis 10 also includes drag link 1, and the two ends of drag link 1 are respectively in the first link position aa, the second connection position
Bb is put to be fixedly connected with left longeron 2a, right vertical beam 2b.
When carrying out the experiment of automotive front offset collision using the vehicle impact testing chassis 10 of the technical program, position of collision
In the left side of automobile, left longeron 2a can occur to move after conquassation deformation, the first link position aa, because the second link position bb is relative
First link position aa is located further forward, or the first link position aa and the second link position bb line parallel to anti-collision beam 5；
Therefore, when being moved after the first link position aa, the distance between the first link position aa, second link position bb can become big, horizontal
Pull bar 1 is stretched, and suffered impact is passed to right vertical beam 2b by left longeron 2a by drag link 1, so as to play constraint
The effect of left longeron 2a deformations.
The effect that drag link 1 in the technical program vehicle impact testing chassis 10 is connected with left longeron 2a, right vertical beam 2b
The effect being connected equivalent to power assemblies such as engines in entity car by engine mounting with left and right longeron；Therefore, control is passed through
Fracture failure ability of the drag link 1 processed in collision process, it becomes possible to accurately show being biased in front portion for entity car
Crashworthiness in impact test.Wherein, fracture failure position of the drag link 1 in collision process can be drag link 1 and a left side
The link position or drag link 1 of longeron and the link position of right vertical beam, can also be that drag link 1 itself disconnects, as long as
Drag link is lost the effect connected of left longeron, right vertical beam.
In the present embodiment, the first link position aa and the second link position bb line are parallel to anti-collision beam 5, i.e., horizontal to draw
Bar 1 is parallel to anti-collision beam 5.
Vehicle impact testing chassis 10 also include left energy-absorption box 4a, right energy-absorption box 4b, be respectively fixedly disposed at left longeron 2a,
Right vertical beam 2b front end, for absorbing Impact energy in collision process；Anti-collision beam 5 is fixedly installed on left energy-absorption box 4a, the right side
Energy-absorption box 4b front end.Testing chassis 10 also includes chassis support 7, for fixing left longeron 2a and right vertical beam 2b.
There is reference picture 2, left longeron 2a the connecting bracket 6a being connected with engine mounting, connecting bracket 6a to be two, edge
Region between left longeron 2a axial direction distribution, two connecting bracket 6a is defined as the bonding pad of engine mounting and left longeron 2a
Domain；Right vertical beam 2b has the connecting bracket 6b being connected with engine mounting, and connecting bracket 6b is two, along right vertical beam 2b axial direction
Region between distribution, two connecting bracket 6b is defined as the join domain of engine mounting and right vertical beam 2b.
In the present embodiment, the first link position aa is arranged in engine mounting and left longeron 2a join domain, and second
Link position bb is arranged in engine mounting and right vertical beam 2b join domain.Therefore, the experiment chassis 10 in the present embodiment
Preceding cabin structure with entity car is closer, can more effectively simulate entity car during anterior offset collision, left longeron 2a
Deformation.
There is reference picture 1, Fig. 2, left longeron 2a first support 3a, first support 3a to be used to be fixedly connected with the one of drag link 1
End；There is right vertical beam 2b second support 3b, second support 3b to be used for the other end for being fixedly connected with drag link 1.
In the present embodiment, being fixedly connected as of first support 3a and drag link 1 is welded to connect, first support 3a be provided with
The through hole (not shown) that drag link 1 is engaged, drag link 1 passes through through hole, and uses carbon-dioxide protecting in bore periphery
Drag link 1 is welded and fixed by weldering with first support 3a.Second support 3b and drag link 1 connected mode and first support 3a and horizontal stroke
The connected mode of pull bar 1 is similar, repeats no more.
In other embodiments, first support is alternatively threaded connection with being fixedly connected for drag link, second support and horizontal stroke
Being fixedly connected for pull bar is alternatively threaded connection.Specifically, the female spiral shell of tool can be set in first support, second support
Pit, sets the external screw thread being engaged with internal thread on the outer peripheral face of drag link.
Substantial amounts of experimental study finds that general entity car is in the experiment of anterior offset collision, when engine mounting and a left side are vertical
When stress between beam or right vertical beam is between 10kN-40kN, the connecting portion of engine mounting and left longeron or right vertical beam occurs
Fracture.
When conquassation deformation occurs for the left longeron 2a of experiment chassis, three positions fracture can occur for drag link 1 simulate reality
Body car, respectively in drag link 1 and first support 3a junction, drag link 1 and second support 3b junction and drag link 1
Body.Therefore, when the stress at any one above-mentioned position is between 10kN-40kN, it is broken；I.e. can be more effective
Entity car is simulated during anterior offset collision, left longeron 2a deformation.
Specifically in the present embodiment, the fracture energy of of drag link 1 itself between 10kN-40kN, i.e., when drag link by
Pulling force 10kN-40kN between when, drag link 1 is broken.
In other embodiments, the failure ability setting that drag link can be connected by vehicle impact testing chassis with first support
Between 10kN-40kN, i.e., when the stress between drag link and first support is between 10kN-40kN, drag link and first
Support is broken in junction；Or, by the failure ability that drag link is connected with second support be set in 10kN-40kN it
Between；Or, the failure ability of failure ability, drag link and second support connection that drag link is connected with first support is set
Between 10kN-40kN.
If for the specific vehicle of certain money, when the definite fracture failure understood between its engine mounting and left and right longeron
During ability, can directly according to its fracture failure ability value come design experiment chassis, can more preferably simulation entity car in front portion
The deformation of left longeron during offset collision.
Reference picture 3, Fig. 4, drag link 1 include the first pull bar 11a and the second pull bar 11b, and the first pull bar 11a is fixedly connected with the
One support 3a, the second pull bar 11b is fixedly connected with second support 3b；First pull bar 11a, the second pull bar 11b are symmetrical arranged, and passed through
Connecting portion 12 is connected, and the fracture energy of connecting portion 12 is between 10kN-40kN；Optionally, the fracture energy of connecting portion 12 exists
Between 20kN-30kN.
In the present embodiment, the first pull bar 11a be pipe, the second pull bar 11b be pipe, connecting portion 12 be the first pull bar 11a,
The section tubular wall that second pull bar 11b extends along its length.Connecting portion 12 can be arranged between left longeron 2a, right vertical beam 2b
Any position；Optionally, connecting portion 12 is arranged on the centre position between left longeron 2a, right vertical beam 2b, the first pull bar 11a,
Two pull bar 11b are symmetrically arranged on the both sides of connecting portion 12.
Specifically, drag link 1 uses steel material, the yield strength σ of general steel material 250MPa-400MPa it
Between；First pull bar 11a, the second pull bar 11b diameter D can be designed between 32mm-40mm, the first pull bar 11a, the second pull bar
11b pipe thickness H can be designed between 2mm-4mm.Width (perpendicular to the axial direction of drag link 1) W of connecting portion 12 can
Design between 20mm-25mm, length (along the axial direction of drag link 1) L of connecting portion 12 can design 90mm-100mm it
Between, the first pull bar 11a, the second pull bar 11b equal length.
Using above-mentioned parameter, according to force equation：F=σ × S ≈ σ × (H × W), obtains the fracture energy of connecting portion 12 finally
Lower limit be 10kN, the upper limit of the fracture energy of connecting portion 12 is 40kN.The design of connecting portion 12 is carried out according to specific vehicle
Fine setting, it becomes possible to the deformation of more preferable simulation entity car left longeron during anterior offset collision.
Although the utility model is disclosed as above, the utility model is not limited to this.Any those skilled in the art,
Do not depart from spirit and scope of the present utility model, can make various changes or modifications, therefore protection domain of the present utility model
It should be defined by claim limited range.
Claims (11)
1. a kind of vehicle impact testing chassis, including left longeron, right vertical beam and anti-collision beam, it is characterised in that the left longeron
With the first link position, the right vertical beam has the second link position, along the length direction of experiment chassis, first connection
Position to the distance of the anti-collision beam is more than or equal to second link position to the distance of the anti-collision beam；
The experiment chassis also includes drag link, and the two ends of the drag link are respectively in first link position, the second connection
Position is fixedly connected with the left longeron, right vertical beam.
2. vehicle impact testing chassis as claimed in claim 1, it is characterised in that first link position, which is arranged on, to be started
Machine is suspended in the join domain with left longeron, and second link position is arranged on the join domain of engine mounting and right vertical beam
It is interior.
3. vehicle impact testing chassis as claimed in claim 2, it is characterised in that the left longeron has first support, is used
In the one end for being fixedly connected with the drag link；The right vertical beam has second support, for being fixedly connected with the another of the drag link
One end.
4. vehicle impact testing chassis as claimed in claim 3, it is characterised in that the drag link is welded with the first support
Connect or be threadedly coupled in succession.
5. vehicle impact testing chassis as claimed in claim 3, it is characterised in that the drag link is welded with the second support
Connect or be threadedly coupled in succession.
6. the vehicle impact testing chassis as described in claim 4 or 5, it is characterised in that the drag link and described first
The failure ability of frame connection is between 10kN-40kN；And/or, the failure ability that the drag link is connected with the second support
Between 10kN-40kN.
7. vehicle impact testing chassis as claimed in claim 1, it is characterised in that the fracture energy of the drag link exists
Between 10kN-40kN.
8. vehicle impact testing chassis as claimed in claim 7, it is characterised in that the drag link includes the first pull bar and the
Two pull bars, first pull bar is fixedly connected with the first support of the left longeron, and second pull bar is fixedly connected described right vertical
The second support of beam；
First pull bar, the second pull bar are connected by connecting portion, and the fracture energy of the connecting portion is between 10kN-40kN.
9. vehicle impact testing chassis as claimed in claim 8, it is characterised in that the fracture energy of the connecting portion exists
Between 20kN-30kN.
10. vehicle impact testing chassis as claimed in claim 8, it is characterised in that first pull bar is pipe, described the
Two pull bars are pipe, the section tubular wall that the connecting portion is the first pull bar, the second pull bar extends along its length.
11. vehicle impact testing chassis as claimed in claim 10, it is characterised in that the drag link uses steel material,
The thickness of the connecting portion is between 2mm-4mm, and the width of the connecting portion is between 32mm-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432825.1U CN206470064U (en) | 2016-12-23 | 2016-12-23 | Vehicle impact testing chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432825.1U CN206470064U (en) | 2016-12-23 | 2016-12-23 | Vehicle impact testing chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470064U true CN206470064U (en) | 2017-09-05 |
Family
ID=59711473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432825.1U Expired - Fee Related CN206470064U (en) | 2016-12-23 | 2016-12-23 | Vehicle impact testing chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206470064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907191A (en) * | 2019-11-12 | 2020-03-24 | 重庆长安汽车股份有限公司 | Aluminum alloy anti-collision cross beam trolley test device and test method |
| CN111024411A (en) * | 2019-12-31 | 2020-04-17 | 东风汽车集团有限公司 | Collision tool structure for evaluating vehicle collision performance |
-
2016
- 2016-12-23 CN CN201621432825.1U patent/CN206470064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907191A (en) * | 2019-11-12 | 2020-03-24 | 重庆长安汽车股份有限公司 | Aluminum alloy anti-collision cross beam trolley test device and test method |
| CN111024411A (en) * | 2019-12-31 | 2020-04-17 | 东风汽车集团有限公司 | Collision tool structure for evaluating vehicle collision performance |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 |