CN108482286A - A kind of automobile collision buffering energy absorption device - Google Patents
A kind of automobile collision buffering energy absorption device Download PDFInfo
- Publication number
- CN108482286A CN108482286A CN201810382059.XA CN201810382059A CN108482286A CN 108482286 A CN108482286 A CN 108482286A CN 201810382059 A CN201810382059 A CN 201810382059A CN 108482286 A CN108482286 A CN 108482286A
- Authority
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- China
- Prior art keywords
- level
- outer barrel
- core material
- absorption device
- energy absorption
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R2019/026—Buffers, i.e. bumpers of limited extent
Abstract
The invention discloses a kind of automobile collision buffering energy absorption devices, including：Front mounting plate；Primary structure, secondary structure, one end are fixedly mounted on the first intermediate stable plate, including：Two level outer barrel；Two level energy-absorbing unit is honeycomb molded body, and section is netted, and the two level energy-absorbing unit is located in the two level outer barrel；Second intermediate stable plate, is detachably connected the other end of the secondary structure；Tertiary structure, one end are fixedly mounted on the second intermediate stable plate, including：Three-level outer barrel and three-level energy-absorbing unit；Mounting plate afterwards is detachably connected the tertiary structure other end, using three-level endergonic structure, improves the energy-absorbing effect of original endergonic structure.
Description
Technical field
The present invention relates to automotive field more particularly to a kind of automobile collision buffering energy absorption devices.
Background technology
Current automobile requires the security performance of crew member higher and higher, the passive safety proposition to motor vehicles
Higher requirement, current collision buffering energy absorption device pass through friction buffer by elastic material or porous padded coaming some
Energy-absorbing, but that there are buffer capacities is small, the small equal hot spots of effective travel, therefore the energy-absorbing effect for buffering collision energy-absorbing device needs to be carried
It is high.
Invention content
The present invention has designed and developed a kind of automobile collision buffering energy absorption device and has used three-level endergonic structure, improves original suction
The energy-absorbing effect of energy structure.
It is a still further object of the present invention to provide the endergonic structures that a kind of core material and fluent material form, and provide core material
Structural parameters are keeping on the original excellent performance basis of traditional core, are improving the antivibration and anti-impact of the energy absorption device of core material
Hit ability.
Technical solution provided by the invention is：
A kind of automobile collision buffering energy absorption device, including：
Front mounting plate；
Primary structure, one end connect the front mounting plate, including：
Level-one outer barrel；
Level-one energy-absorbing unit, setting in the level-one outer barrel, including core material and be filled between the core material and/
Or it is filled in the fluent material between the core material and the level-one outer barrel；
First intermediate stable plate, one end connect the primary structure other end；
Secondary structure, one end are fixedly mounted on the first intermediate stable plate, including：
Two level outer barrel；
Two level energy-absorbing unit is honeycomb molded body, and section is netted, and the two level energy-absorbing unit is located at the two level
In outer barrel；
Second intermediate stable plate, is detachably connected the other end of the secondary structure；
Tertiary structure, one end are fixedly mounted on the second intermediate stable plate, including：
Three-level outer barrel；
Three-level energy-absorbing unit, setting in the three-level outer barrel, including core material and be filled between the core material and/
Or it is filled in the fluent material between the core material and the three-level outer barrel；
Mounting plate afterwards is detachably connected the tertiary structure other end.
Preferably, the level-one outer barrel and the three-level outer barrel are trapezoidal cylinder.
Preferably, the level-one outer barrel, including the first inner layer and the first cladding for being coated on first inner layer two sides
Layer；The three-level outer barrel, including third inner layer and the third clad for being coated on third inner layer two sides.
Preferably, first inner layer and the third inner layer thickness are 0.12-0.15mm, and the coating thickness is
0.02-0.06mm。
Preferably, first inner layer and third inner layer material, including mass percent be 0.21~0.26% iron,
0.37~0.41% silicon, 1.22~1.26% manganese, 0.03~0.06% zirconium, 0.02~0.08% sodium, 1.2~1.5%
Copper, 1.1~1.6% copper, surplus be aluminium and inevitable impurity.
Preferably, first clad and the third clad material, including：Mass percent is：0.03~
0.06% iron, 0.12~0.15% zirconium, 0.17~0.28% sodium, 1.2~1.5% copper, 0.04~0.08% magnesium, it is remaining
Amount is aluminium and inevitable impurity.
Preferably, the mass percent of the inevitable impurity is no more than 0.24%.
Preferably, the core material is aluminum honeycomb core.
Preferably, the fluent material is mixed by micro-nano granules and silicone oil with low viscosity；Wherein, micro-nano granules
Mass percent be 10.8%-32.7%, the mass percent of the silicone oil with low viscosity is 67.3%-89.2%；
Wherein, the micro-nano granules are silica, transition metal oxide and one kind or several in non-oxide particle
Kind；The silicone oil with low viscosity is in hydroxy-terminated polysiloxane, methoxy group polysiloxanes and ethyoxyl terminated polysiloxane
One or more.
Preferably, the honeycomb core includes multiple round honeycombs, and the cellular wall thickness of circle is：
Wherein,E is the elasticity modulus of aluminum material used in honeycomb core material, R1For outer barrel bottom surface radius, R2For
Outer barrel top surface radius, L are the length of honeycomb core material, FλFor with the relevant coefficient of instantaneous force, numerical value be 9.8 × 104N, C
For constant, value 0.215, x be with the relevant coefficient of length, numerical value is 2.8~3.6cm,
The cellular radius of circle is
Wherein, E is the elasticity modulus of aluminum material used in honeycomb core material, FλFor with the relevant coefficient of instantaneous force,
Numerical value is 9.8 × 104N, L are the length of honeycomb core material, and t is round cellular wall thickness, and h is depth coefficient, numerical value 0.32,For compressive strength rate；pyFor the maximum compressive strength of honeycomb core material, p is the average pressure intensity that honeycomb core material receives, number
Value is 120MPa.
Advantageous effect of the present invention
The present invention has designed and developed a kind of automobile collision buffering energy absorption device and has used three-level endergonic structure, improves original suction
The energy-absorbing effect of energy structure.A kind of endergonic structure of core material and fluent material composition is provided, and provides the structural parameters of core material,
It keeps on the original excellent performance basis of traditional core, improves the antivibration and impact resistance of the energy absorption device of core material
Description of the drawings
Fig. 1 is the structural schematic diagram of automobile collision buffering energy absorption device of the present invention.
Fig. 2 is the schematic diagram of primary structure of the present invention.
Fig. 3 is the schematic diagram of secondary structure of the present invention.
Fig. 4 is the schematic diagram of tertiary structure of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in Figure 1, automobile collision buffering energy absorption device provided by the invention, includes front mounting plate 110, level-one successively
Structure 120, the first intermediate stable plate 130, secondary structure 140, the second intermediate stable plate 150, tertiary structure 160 and rear mounting plate
170。
Wherein, front mounting plate 110 is round or rectangular, and mounting plate surrounding has mounting hole, and collision buffering energy absorption device can
To be mounted on automobile by bolt；120 one end of primary structure connects front mounting plate 110, for answering for enhancing primary structure 110
Power improves its structure, including：Level-one outer barrel 121 and level-one energy-absorbing unit 122, level-one outer barrel 121 be trapezoidal bucket, one
Grade energy-absorbing unit 122 is filled in inside level-one outer barrel 121, level-one energy-absorbing unit 122 include core material and be filled between core material and
Or it is filled in the fluent material between core material and level-one outer barrel；One end connection primary structure 120 of first intermediate stable plate 130 is another
One end；140 one end of secondary structure is fixedly mounted on the first intermediate stable plate 130, including：Two level outer barrel 141 and two level energy-absorbing
Unit 142；Two level energy-absorbing unit 142 is honeycomb molded body, and section is netted, and two level energy-absorbing unit 142 is filled in outside two level
In cylinder 141；Second intermediate stable plate 150 is detachably connected the other end of secondary structure 140；Peace is fixed in 160 one end of tertiary structure
On the second intermediate stable plate 150, including：Three-level outer barrel 161；Three-level energy-absorbing unit 162 is filled in three-level outer barrel 161
Portion, including core material and it is filled between core material and/or is filled in the fluent material between core material and three-level outer barrel 161；After install
Plate 170 is detachably connected tertiary structure 160.
As in Figure 2-4, in another embodiment, level-one outer barrel 121 and three-level outer barrel 161 are trapezoidal cylinder.Outside level-one
Cylinder 121 is identical with the structure of three-level outer barrel 161, including inner layer and clad, and preferably inner layer thickness is 0.12-0.15mm,
Coating thickness is 0.02-0.06mm.
Inner layer material, including mass percent be 0.21~0.26% iron, 0.37~0.41% silicon, 1.22~
1.26% manganese, 0.03~0.06% zirconium, 0.02~0.08% sodium, 1.2~1.5% copper, 1.1~1.6% copper, surplus
For aluminium and inevitable impurity.
Clad material, including：Mass percent is：0.03~0.06% iron, 0.12~0.15% zirconium, 0.17~
0.28% sodium, 1.2~1.5% copper, 0.04~0.08% magnesium, surplus are aluminium and inevitable impurity.
It is no more than 0.24% as a kind of mass percent of preferably inevitable impurity.Core material is aluminum honeycomb core
Material.Fluent material is mixed by micro-nano granules and silicone oil with low viscosity；Wherein, the mass percent of micro-nano granules is
The mass percent of 10.8%-32.7%, the silicone oil with low viscosity are 67.3%-89.2%；Wherein, micro-nano granules are dioxy
One or more of SiClx, transition metal oxide and non-oxide particle；The silicone oil with low viscosity is hydroxy-end capped poly- silica
One or more of alkane, methoxy group polysiloxanes and ethyoxyl terminated polysiloxane.
Core material is aluminum honeycomb core, and honeycomb core includes multiple round honeycombs, and round cellular wall thickness is：
Wherein,E is the elasticity modulus of aluminum material used in honeycomb core material, R1For outer barrel bottom surface radius, R2For
Outer barrel top surface radius, L are the length of honeycomb core material, FλFor with the relevant coefficient of instantaneous force, numerical value be 9.8 × 104N, C
For constant, value 0.215, x be with the relevant coefficient of length, numerical value is 2.8~3.6cm,
Round cellular radius is
Wherein, E is the elasticity modulus of aluminum material used in honeycomb core material, FλFor with the relevant coefficient of instantaneous force,
Numerical value is 9.8 × 104N, L are the length of honeycomb core material, and t is round cellular wall thickness, and h is depth coefficient, numerical value 0.32,For compressive strength rate；pyFor the maximum compressive strength of honeycomb core material, p is the average pressure intensity that honeycomb core material is subject to, number
Value is 120MPa.
Experimental example carries out energy-absorbing test to energy absorption device proposed by the present invention, and entire experimental system includes trip rod, tests the speed
Device, experimental piece, recording equipment and output device, wherein speed measuring device include signal lamp and electronic calculator, recording equipment
High-speed photography equipment including 2000 frames/second, photographic equipment are vertically placed below experimental piece, wherein the power size inputted in experiment
It is equal, the under equal conditions energy-absorbing situation of contrast experiment's part：Experimental piece is the structure of multiple energy-absorbing units, including it is multiple, it is real
The design parameter for testing part is shown in Table 1
1 experimental piece parameter list of table
Experimental result can be analyzed and be obtained, apparent deformation can occur after 2ms for sample piece A, and deformation is maximum after 3ms, 4ms
After can be there are one apparent springback process.
There is an indent phenomenon due to the complex reflex of stress wave in experimental piece, the deformation of experimental piece be not along
Impact velocity direction sequence occurs, and the deformation of middle section is maximum, according to the energy-absorbing rate of experimental result experiment with computing part, experiment knot
Fruit summarizes such as table 2
The energy-absorbing rate of 2 experimental piece of table
Wherein, in table, impact velocity refers to that the speed of impact bar striking experiment part, reflection speed refer to that strike bar is hit
Rebound velocity after experimental piece.
Learnt by table 2, contrast sample part A and contrast piece 1 as it can be seen that sample piece A energy-absorbing rate higher, energy-absorbing effect is more preferable,
Sample piece A and 2 data comparison of documents learn that the energy-absorbing unit energy-absorbing effect for being added to fluent material is more preferable.By sample piece B
Learn that the outer barrel ratio aluminum outer barrel energy-absorbing effect with clad and coat is more preferable with 3 data comparison of contrast piece.It can be seen that
Sample piece it is reasonable in design, effectively increase the energy-absorbing effect of energy absorption device.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of automobile collision buffering energy absorption device, which is characterized in that including：
Front mounting plate；
Primary structure, one end connect the front mounting plate, including：
Level-one outer barrel；
Level-one energy-absorbing unit, setting is in the level-one outer barrel, including core material and is filled between the core material and/or fills out
Fill the fluent material between the core material and the level-one outer barrel；
First intermediate stable plate, one end connect the primary structure other end；
Secondary structure, one end are fixedly mounted on the first intermediate stable plate, including：
Two level outer barrel；
Two level energy-absorbing unit is honeycomb molded body, and section is netted, and the two level energy-absorbing unit is located at the two level outer barrel
It is interior；
Second intermediate stable plate, is detachably connected the other end of the secondary structure；
Tertiary structure, one end are fixedly mounted on the second intermediate stable plate, including：
Three-level outer barrel；
Three-level energy-absorbing unit, setting is in the three-level outer barrel, including core material and is filled between the core material and/or fills out
Fill the fluent material between the core material and the three-level outer barrel；
Mounting plate afterwards is detachably connected the tertiary structure other end.
2. automobile collision buffering energy absorption device according to claim 1, which is characterized in that the level-one outer barrel and described
Three-level outer barrel is trapezoidal cylinder.
3. automobile collision buffering energy absorption device according to claim 2, which is characterized in that the level-one outer barrel, including
First inner layer and the first clad for being coated on first inner layer two sides；The three-level outer barrel, including third inner layer and cladding
Third clad on third inner layer two sides.
4. automobile collision buffering energy absorption device according to claim 3, which is characterized in that first inner layer and described
Third inner layer thickness is 0.12-0.15mm, and the coating thickness is 0.02-0.06mm.
5. automobile collision buffering energy absorption device according to claim 4, which is characterized in that first inner layer and third
Inner layer material, including mass percent be 0.21~0.26% iron, 0.37~0.41% silicon, 1.22~1.26% manganese,
0.03~0.06% zirconium, 0.02~0.08% sodium, 1.2~1.5% copper, 1.1~1.6% copper, surplus are aluminium and can not
The impurity avoided.
6. automobile collision buffering energy absorption device according to claim 5, which is characterized in that first clad and institute
Third clad material is stated, including：Mass percent is：0.03~0.06% iron, 0.12~0.15% zirconium, 0.17~
0.28% sodium, 1.2~1.5% copper, 0.04~0.08% magnesium, surplus are aluminium and inevitable impurity.
7. automobile collision buffering energy absorption device according to claim 5 or 6, which is characterized in that described inevitable
The mass percent of impurity is no more than 0.24%.
8. automobile collision buffering energy absorption device according to claim 1, which is characterized in that the core material is aluminum honeycomb
Shape core material.
9. automobile collision buffering energy absorption device according to claim 8, which is characterized in that the fluent material is by micro-nano
Rice grain is mixed with silicone oil with low viscosity；Wherein, the mass percent of micro-nano granules is 10.8%-32.7%, described low
The mass percent of viscosity silicone oil is 67.3%-89.2%；
Wherein, the micro-nano granules are one or more of silica, transition metal oxide and non-oxide particle；Institute
It is one kind in hydroxy-terminated polysiloxane, methoxy group polysiloxanes and ethyoxyl terminated polysiloxane to state silicone oil with low viscosity
Or it is several.
10. automobile collision buffering energy absorption device according to claim 9, which is characterized in that the honeycomb core packet
Multiple round honeycombs are included, the cellular wall thickness of circle is：
Wherein,E is the elasticity modulus of aluminum material used in honeycomb core material, R1For outer barrel bottom surface radius, R2For outer barrel
Top surface radius, L are the length of honeycomb core material, FλFor with the relevant coefficient of instantaneous force, numerical value be 9.8 × 104N, C are normal
Number, value 0.215, x be with the relevant coefficient of length, numerical value be 2.8~3.6cm,
The cellular radius of circle is
Wherein, E is the elasticity modulus of aluminum material used in honeycomb core material, FλFor with the relevant coefficient of instantaneous force, numerical value is
9.8×104N, L are the length of honeycomb core material, and t is round cellular wall thickness, and h is depth coefficient, numerical value 0.32,It is anti-
Compressive Strength ratio；pyFor the maximum compressive strength of honeycomb core material, p is the average pressure intensity that honeycomb core material receives, and numerical value is
120MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382059.XA CN108482286B (en) | 2018-04-26 | 2018-04-26 | Collision buffering energy-absorbing device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382059.XA CN108482286B (en) | 2018-04-26 | 2018-04-26 | Collision buffering energy-absorbing device for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108482286A true CN108482286A (en) | 2018-09-04 |
| CN108482286B CN108482286B (en) | 2020-01-14 |
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ID=63314228
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810382059.XA Expired - Fee Related CN108482286B (en) | 2018-04-26 | 2018-04-26 | Collision buffering energy-absorbing device for automobile |
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| CN (1) | CN108482286B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263588A (en) * | 2018-09-18 | 2019-01-25 | 北汽福田汽车股份有限公司 | Energy-absorption box, collision prevention beam component and vehicle |
| CN111022538A (en) * | 2019-12-06 | 2020-04-17 | 华侨大学 | Multifunctional gradient energy absorption box |
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| JP2001132787A (en) * | 1999-11-01 | 2001-05-18 | Tokai Rubber Ind Ltd | Impact-absorbing member |
| CN201484342U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Car bumper energy-absorbing device |
| CN103350673A (en) * | 2013-07-27 | 2013-10-16 | 吉林大学 | Automobile energy absorption box |
| CN104309555A (en) * | 2014-10-14 | 2015-01-28 | 吉林大学 | Simple three-section sleeve type liquid-filling, buffering and energy-absorbing element and design method thereof |
| FR3022603A1 (en) * | 2014-06-18 | 2015-12-25 | Renault Sas | ENERGY ABSORBER DEVICE AND CORRESPONDING VEHICLE |
| CN106740612A (en) * | 2016-11-10 | 2017-05-31 | 刘红才 | Buffer device for collision |
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2018
- 2018-04-26 CN CN201810382059.XA patent/CN108482286B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132787A (en) * | 1999-11-01 | 2001-05-18 | Tokai Rubber Ind Ltd | Impact-absorbing member |
| CN201484342U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Car bumper energy-absorbing device |
| CN103350673A (en) * | 2013-07-27 | 2013-10-16 | 吉林大学 | Automobile energy absorption box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263588A (en) * | 2018-09-18 | 2019-01-25 | 北汽福田汽车股份有限公司 | Energy-absorption box, collision prevention beam component and vehicle |
| CN109263588B (en) * | 2018-09-18 | 2020-11-13 | 北汽福田汽车股份有限公司 | Energy-absorbing box, crashproof roof beam subassembly and vehicle |
| CN111022538A (en) * | 2019-12-06 | 2020-04-17 | 华侨大学 | Multifunctional gradient energy absorption box |
| CN111022538B (en) * | 2019-12-06 | 2024-03-12 | 华侨大学 | Multifunctional gradient energy absorption box |
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| CN108482286B (en) | 2020-01-14 |
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