CN105128785B - A kind of composite automobile energy-absorption box - Google Patents
A kind of composite automobile energy-absorption box Download PDFInfo
- Publication number
- CN105128785B CN105128785B CN201510521773.9A CN201510521773A CN105128785B CN 105128785 B CN105128785 B CN 105128785B CN 201510521773 A CN201510521773 A CN 201510521773A CN 105128785 B CN105128785 B CN 105128785B
- Authority
- CN
- China
- Prior art keywords
- energy
- installation pedestal
- absorbing cylinder
- absorption box
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 53
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000835 fiber Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013467 fragmentation Methods 0.000 abstract description 2
- 238000006062 fragmentation reaction Methods 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 208000020442 loss of weight Diseases 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
The purpose of the present invention is to propose to a kind of lightweight, it has excellent performance, reliable and stable composite automobile energy-absorption box.Composite automobile energy-absorption box of the invention is made of installation pedestal and energy-absorbing cylinder, and the installation pedestal is made of steel or aluminum alloy materials, and the energy-absorbing cylinder is made of carbon fibre composite；The installation pedestal and energy-absorbing cylinder are pyramidal structure, and the installation pedestal is equipped with flange face；The stub end of energy-absorbing cylinder is socketed in installation pedestal, and is glued with installation pedestal and is fixed.In composite automobile energy-absorption box of the invention, energy-absorbing cylinder made of pyramid type carbon fibre composite is main energy absorbing portion, can mitigate weight significantly.Due to using the configuration design of variable cross-section, during automobile central collision, offset collision, energy-absorbing cylinder can compare thoroughly cataclastic failure, energy be absorbed by many forms such as fibrous fracture, laminate layering, resin fragmentation, to obtain stable energy-absorbing effect.Installation pedestal can improve stable support for energy-absorbing cylinder simultaneously.
Description
Technical field
The present invention relates to the Design of Auto Parts and manufacturing technology field, and in particular to is made to a kind of using different materials
Composite automobile energy-absorption box.
Background technique
Currently, as the pressure of raising and the energy-saving and emission-reduction of discharge standard increasingly increases, domestic and international automobile manufacture commercial city note
Loss of weight is carried out to vehicle body again.It is exactly one using the high new material of specific strength and specific modulus in the measure of numerous vehicle body losss of weight
Effective loss of weight measure.Such as a large amount of metals, high-strength steel, carbon fibre composite high-strength material are being applied to vehicle structure
Design and manufacture.Wherein, car body weight can be not only greatly lowered by applying to carbon fibre composite, moreover it is possible to be greatlyd improve
The security performance of automobile.
In recent years, since with excellent ratio energy-absorbing (Specific energy absorption) characteristic, carbon fiber is multiple
Condensation material is increasingly becoming the candidate materials of automobile anticollision performance design.The ratio energy absorption ability of carbon fibre composite is significantly larger than
Traditional steel and aluminium alloy, also above the hybrid composites such as glass fibre reinforced composion and Kevlar/ carbon fiber.To the greatest extent
Pipe carbon fibre composite has transcendent ratio energy absorption characteristics, but due to the unique mechanical characteristic of anisotropic material, only
Have and its optimal impact energy absorption ability of the optimization design competence exertion of science is carried out to external form, structure, laying of energy-absorption box etc., with
Ensure the optimal passive security performance of automobile.
Summary of the invention
The purpose of the present invention is to propose to a kind of lightweight, it has excellent performance, reliable and stable composite automobile energy-absorption box.
Composite automobile energy-absorption box of the invention is made of installation pedestal and energy-absorbing cylinder, the installation pedestal by steel or
Aluminum alloy materials are made, and the energy-absorbing cylinder is made of carbon fibre composite；The installation pedestal and energy-absorbing cylinder are taper knot
Structure, the installation pedestal are equipped with flange face；The stub end of the energy-absorbing cylinder is socketed in installation pedestal, and is glued with installation pedestal
It is fixed.
The flange face of installation pedestal is mechanically connected by fastening bolt and vehicle body anticollision girder, energy-absorbing cylinder and installation base
Seat is attached by the combination type of attachment of grafting and splicing.Had using the advantages of this connection: 1, with mechanical connection compared with,
Eliminate unnecessary fastener；It 2,, can be effective using the clearance fit of energy-absorbing cylinder and installation pedestal compared with traditional splicing
Control the thickness of glue-line；3, energy-absorbing cylinder and installation pedestal are all cone, it is easy to install, can guarantee very high installation accuracy；
4, the stability installed is very high, after impact wreckage, even if pyramid type carbon fibre composite part has been damaged, and the peace of energy-absorption box
Dress base part can also continue to using protecting body of a motor car to greatest extent.
Further, to avoid energy-absorbing cylinder mobile relative to installation pedestal, the stub end of the energy-absorbing cylinder and the installation base
The flange face of seat offsets.
Further, in order to guarantee glue-joint strength, the length of the installation pedestal is greater than 50mm.In addition, after impact wreckage,
Even if energy-absorbing cylinder has damaged, installation pedestal be can also continue to using protecting body of a motor car to greatest extent.
Further, the medial surface of the energy-absorbing cylinder and the lateral surface of installation pedestal are clearance fit, and fit clearance is
The mm of 0.2mm~0.25, to obtain optimal cementing strength.
It further, is the better gradual change crumple effect of realization, the thickness of the energy-absorbing cylinder and installation pedestal is by small head end
It is gradually increased to stub end.
Specifically, the energy-absorbing cylinder passes through prepeg process or RTM using the fiber laying of (0/90) 3/03 (0/90) 3
Technological forming；The fiber laying is made of 3K, 6K carbon fiber twills and 3K, 6K carbon fiber one-way fabric；The suction
Energy cylinder and installation pedestal pass through epoxy resin gluing knot.
In composite automobile energy-absorption box of the invention, energy-absorbing cylinder made of pyramid type carbon fibre composite is main suction
Energy part, can mitigate weight significantly.Due to using the configuration design of variable cross-section, in automobile central collision, the process of offset collision
In, energy-absorbing cylinder can compare thoroughly cataclastic failure, pass through many forms such as fibrous fracture, laminate layering, resin fragmentation
Energy is absorbed, to obtain stable energy-absorbing effect, while installation pedestal can improve stable support for energy-absorbing cylinder.
Detailed description of the invention
Fig. 1 is the cross-sectional view of composite automobile energy-absorption box of the invention.
Attached drawing mark: 1, installation pedestal；2, energy-absorbing cylinder；3, flange face.
Specific embodiment
It is for example related each to a specific embodiment of the invention by the description to embodiment below against attached drawing
The shape of component, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle etc. are made into one
The detailed description of step.
Embodiment 1:
As shown, the composite automobile energy-absorption box of the present embodiment is made of installation pedestal 1 and energy-absorbing cylinder 2, installation pedestal 1
It is pyramidal structure with energy-absorbing cylinder 2, the installation pedestal 1 is equipped with flange face 3；The stub end of the energy-absorbing cylinder 2 is socketed on installation
On pedestal 1, and it is glued with installation pedestal 1 and fixes.
Further, to avoid energy-absorbing cylinder 2 mobile relative to installation pedestal 1, the stub end of the energy-absorbing cylinder 2 and the installation
The flange face 3 of pedestal 1 offsets.
Wherein:
Energy-absorbing cylinder 2 uses the technological formings such as prepeg process, RTM technique, and the fiber laying of recommendation is [(0/90) 3/03
(0/90)3].Fiber can use 3K, 6K carbon fiber twills and 3K, 6K carbon fiber one-way fabric.
Installation pedestal 1 uses steel or aluminum alloy materials casting and forming, must guarantee that external conical surface is smooth.Base is installed
The circular conical surface of seat 1 and the internal conical surface of energy-absorbing cylinder 2 are designed to clearance fit, and fit clearance is the mm of 0.2mm~0.25, to obtain
Obtain optimal cementing strength.In order to guarantee glue-joint strength, the length of the circular conical surface part of installation pedestal 1 should control 50 mm with
On.
Energy-absorbing cylinder 2 and installation pedestal 1 are connect using socket and by the way of cementitious composition.Using 80# without waterproof abrasive paper before connection
Grinding process is carried out, the internal conical surface of outer conical surface and energy-absorbing cylinder 2 to installation pedestal 1 is roughened.Again using wet
The method of splicing completes the splicing of the outer conical surface of installation pedestal 1 and the internal conical surface of energy-absorbing cylinder 2, is finally solidified at room temperature
Type.Recommend to use epoxide-resin glue, such as 3M epoxy structural rubber.
Claims (8)
1. a kind of composite automobile energy-absorption box, it is characterised in that be made of installation pedestal and energy-absorbing cylinder, the installation pedestal is by steel
Material or aluminum alloy materials are made, and the energy-absorbing cylinder is made of carbon fibre composite；The installation pedestal and energy-absorbing cylinder are
Hollow pyramidal structure, the installation pedestal are equipped with flange face；The stub end of the energy-absorbing cylinder is socketed in installation pedestal, socket
It is greater than installation pedestal, energy-absorbing cylinder and installation pedestal in the length of the energy-absorbing cylinder outside installation pedestal to connect by the combination of grafting and splicing
The form of connecing is attached, and the medial surface of energy-absorbing cylinder and the lateral surface of installation pedestal are clearance fit, is filled in the fit clearance
Glue is fixed so that energy-absorbing cylinder and installation pedestal are glued.
2. composite automobile energy-absorption box according to claim 1, it is characterised in that the stub end of the energy-absorbing cylinder with it is described
The flange face of installation pedestal offsets.
3. composite automobile energy-absorption box according to claim 1, it is characterised in that the length of the installation pedestal is greater than
50mm。
4. composite automobile energy-absorption box according to claim 1, it is characterised in that the fit clearance is 0.2mm~0.25
mm。
5. composite automobile energy-absorption box according to claim 1, it is characterised in that the thickness of the energy-absorbing cylinder and installation pedestal
Degree is gradually increased from small head end to stub end.
6. composite automobile energy-absorption box described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that the energy-absorbing cylinder is adopted
With (0/90)3/03(0/90)3Fiber laying pass through prepeg process or RTM technological forming.
7. composite automobile energy-absorption box according to claim 6, it is characterised in that the fiber laying uses 3K, 6K carbon fiber
Dimension twills and 3K, 6K carbon fiber one-way fabric are made.
8. composite automobile energy-absorption box described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that the energy-absorbing cylinder with
Installation pedestal passes through epoxy resin gluing knot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521773.9A CN105128785B (en) | 2015-08-24 | 2015-08-24 | A kind of composite automobile energy-absorption box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521773.9A CN105128785B (en) | 2015-08-24 | 2015-08-24 | A kind of composite automobile energy-absorption box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105128785A CN105128785A (en) | 2015-12-09 |
| CN105128785B true CN105128785B (en) | 2019-06-14 |
Family
ID=54714496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510521773.9A Active CN105128785B (en) | 2015-08-24 | 2015-08-24 | A kind of composite automobile energy-absorption box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105128785B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292027A (en) * | 2015-12-11 | 2016-02-03 | 中交华安科技（天津）有限公司 | Compression resistance cap in dangerous chemical transport vehicle energy-absorbing device |
| CN107672548A (en) * | 2017-10-27 | 2018-02-09 | 河北工业大学 | A kind of bumper and automobile |
| CN108297939B (en) * | 2017-12-12 | 2020-09-15 | 北汽福田汽车股份有限公司 | Collision energy absorption device, front longitudinal beam, frame and automobile |
| CN110696759A (en) * | 2019-10-29 | 2020-01-17 | 华侨大学 | A gradient car energy absorbing box |
| CN112484566B (en) * | 2020-11-24 | 2022-12-02 | 航天特种材料及工艺技术研究所 | Shock-resistant composite material bullet support structure |
| CN113352656A (en) * | 2021-05-10 | 2021-09-07 | 哈尔滨玻璃钢研究院有限公司 | Integrated forming method for metal flange and fiber composite material sandwich structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004024578B4 (en) * | 2004-05-18 | 2007-02-15 | Daimlerchrysler Ag | An energy absorbing composite beam of a vehicle structure of a vehicle and method of manufacturing the same |
| CN203402111U (en) * | 2013-08-13 | 2014-01-22 | 广州汽车集团股份有限公司 | Energy absorption box |
| JP6220198B2 (en) * | 2013-09-10 | 2017-10-25 | 株式会社Ｓｕｂａｒｕ | Shock absorber |
| JP5791676B2 (en) * | 2013-09-10 | 2015-10-07 | 富士重工業株式会社 | Shock absorber |
| CN104309555B (en) * | 2014-10-14 | 2017-02-08 | 吉林大学 | Simple three-section sleeve type liquid-filling, buffering and energy-absorbing element and design method thereof |
-
2015
- 2015-08-24 CN CN201510521773.9A patent/CN105128785B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105128785A (en) | 2015-12-09 |
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