CN106427842A - Composite fiber-wound cylindrical foamed aluminum automobile bumper system - Google Patents
Composite fiber-wound cylindrical foamed aluminum automobile bumper system Download PDFInfo
- Publication number
- CN106427842A CN106427842A CN201610989308.2A CN201610989308A CN106427842A CN 106427842 A CN106427842 A CN 106427842A CN 201610989308 A CN201610989308 A CN 201610989308A CN 106427842 A CN106427842 A CN 106427842A
- Authority
- CN
- China
- Prior art keywords
- foamed aluminium
- composite fibre
- bumper system
- composite fiber
- crossbeam
- 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.)
- Pending
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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
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a composite fiber-wound cylindrical foamed aluminum automobile bumper system. The system comprises a plastic outer board, a buffer material and a cross beam, the outer board and the buffer material are attached to the cross beam, the cross beam is in screwed connection with a longitudinal beam of a frame, cylindrical foamed aluminum is adopted as the buffer material, composite fiber layers are arranged outside the cylindrical foamed aluminum in a winding mode, and the cross angle formed between the upper composite fiber layer and the lower composite fiber layer ranges from 30 degrees to 90 degrees; composite fibers are woven by mixing graphene fibers with steel fibers according to the weight ratio ranging from 2:1 to 1:4. According to the bumper system, the energy absorption effect is good, no moving part is arranged, and the reliability is high.
Description
Technical field
The present invention relates to automobile technical field, more particularly, to a kind of composite fibre winding column foamed aluminium bumper system
System.
Background technology
Bumper assembly is the important component part of body of a motor car.It act as sending out with other vehicles or barrier when automobile
Passenger safety can be protected during raw collision, reduce the car body extent of damage.Bumper assembly energy apparatus with shock absorbing during minor accident, so
Automatically restore to the original state afterwards, significantly reduce the cost of repairs of automobile.When meeting serious car accident, impulsive force is through bumper
System is reasonably disperseed to vehicle body, to avoid regional area deformation excessive it is ensured that passenger has enough vivospheries.
The species of bumper is a lot, is roughly divided into three classes by its version：
The first kind is that version is simple, the bumper of lower-cost simple nonmetallic materials, can be directly solid with bolt
Dingan County is attached on the bracket of vehicle body.The buffering energy-absorbing power of such bumper is poor, is often equipped with keeping out economy car.
Equations of The Second Kind is generally made up of whippletree and buffering energy-absorbing part and reinforcement etc., during this kind of bumper is typically mounted at,
On low-grade automobile.
3rd class then carries buffer, is provided with buffer between bumper transverse bar and body bottom longeron,
The version of buffer is various, but is using hydraulic pressure or pneumatic shock absorbing mostly, has moving component.
Make a general survey of above-mentioned bumper assembly, the bumper assembly energy-absorbing effect with buffer is outstanding, performance is best, but
Its price is high, has moving component, therefore its reliability is relatively low simultaneously.And the one or two class is because of the birth defect of structure, energy-absorbing
Effect is poor.How to utilize material behavior, design has the bumper assembly with buffer that matches in excellence or beauty, simultaneously structure letter again
Single, reliability is high, is the technical barrier that this area faces.
Content of the invention
It is an object of the invention to proposing a kind of composite fibre to be wound around column foamed aluminium bumper system for vehicles, its energy-absorbing is imitated
Really good, there is no moving component, reliability is high.
A kind of earlier application " column foamed aluminium bumper system for vehicles " of the present invention adopts graphene fiber layer winding post
Shape foamed aluminium forms padded coaming, but because Graphene price is high, therefore the present invention passes through to substitute stone using other fiber parts
Black alkene, to reduce the cost using Graphene.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of composite fibre is wound around column foamed aluminium bumper system for vehicles, and it includes plastics outside plate, padded coaming and horizontal stroke
Beam, outside plate and padded coaming are attached on crossbeam, crossbeam and longitudinal beam screw joints, and described padded coaming is column foam
Aluminum, is wound with composite fibre layer outside described column foamed aluminium, the intersecting angle between upper and lower two-layer composite fibre is 30-90 degree；
Described composite fibre is graphene fiber and steel fibre, and it compares 2 with weight:1-1:4 ratio mixed weaving forms.
Preferably, described composite fibre layer thickness is 0.1-1mm, preferably 0.2-0.5mm.
Preferably, the described column foamed aluminium being wound with composite fibre layer close-packed arrays between plastics outside plate and crossbeam,
Its a diameter of 5-15cm.
Foamed aluminium belongs to porous metal material, and its aluminum substrate is contained within a large amount of structures and the controlled hole of distribution, its be with
Hole (air) is as the composite of compound phase.When foamed aluminium is compressed, it assumed elasticity before this, and appearance one is long then
Long platform, at this moment strain increases very big and stress nearly constant constant (plasticity subsidence area), and last platform cell wall is compressed in
Together, material is compacted, and stress is again rapid to be increased.Therefore foamed aluminium is good energy-absorbing material, and its energy-absorbing occurs mainly in
Platform phase.Because foam metal is in compression process, after the elastic deformation of very little, it is put into a very long stress and puts down
Platform, this platform is longer, and under less stress, material just can absorb bigger energy.But the increase with density of material, puts down
Platform stress increases therewith, and platform also shortens therewith.So the energy absorption ability of foamed materialss is closely related with density.
In the research of existing foamed aluminium, typically adopt foamed aluminium sandwich structure, such as foam aluminium sandwich beam.Described foam
Although aluminum sandwich structure energy-absorbing effect is good, it prepares sandwich structure with foamed aluminium, and technique is complex.Therefore the present invention is led to
Crossing material modification enables foamed aluminium to reach the effect of sandwich structure, make again relatively simple, can effective alternative structure complexity
Bumper assembly with buffer.
The present invention first prepares column foamed aluminium, then winding method is wound around composite fibre layer in a wet process outside foamed aluminium,
Obtain the column foamed aluminium of the composite fibre layer cladding of the present invention.
Due to more taller than best steel 200 times of the fracture strength of Graphene.It has good elasticity again simultaneously, stretching
Amplitude can reach the 20% of own dimensions.Its density is much smaller than aluminum simultaneously.Therefore graphene fiber layer is coated column foamed aluminium
Afterwards, the density of foamed aluminium diminishes, and plateau stress is elongated, simultaneously after graphene fiber layer cladding column foamed aluminium, foamed aluminium elasticity
Uprise, its plateau stress length of side.The energy absorption ability of foamed aluminium is therefore increased by two aspects.
The tensile strength of steel fibre reaches as high as 3000MPa, its low price, and easily, therefore its part substitutes stone for buying
After black alkene fiber, by being knitted to form composite fibre, formed compound further in column foam aluminium outer layer by Wet Winding Process
Fibrous layer.When column foamed aluminium bears from the shock of plastics outside plate, there is micro deformation in it first, therefore absorbs outside plastics
The energy of plate, prevents plastics outside plate from rupturing.When there is hard hit, foamed aluminium is collapsed, and described composite fibre layer is wound around
Foamed aluminium, prevents foamed aluminium from occurring in the horizontal direction scalable, and the ability of therefore its energy absorption greatly enhances.
Therefore, after plastic bumper being placed in the column foamed aluminium of the composite fibre layer cladding of the present invention, you can play
Effect with buffer damping structure bumper.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
Embodiment 1
A kind of composite fibre is wound around column foamed aluminium bumper system for vehicles, and it includes plastics outside plate, padded coaming and horizontal stroke
Beam, outside plate and padded coaming are attached on crossbeam, crossbeam and longitudinal beam screw joints, and described padded coaming is column foam
Aluminum, is wound with composite fibre layer outside described column foamed aluminium, the intersecting angle between upper and lower two-layer composite fibre is 30 degree；Described
Composite fibre is graphene fiber and steel fibre, and it compares 2 with weight:1 ratio mixed weaving forms.
Embodiment 2
A kind of composite fibre is wound around column foamed aluminium bumper system for vehicles, and it includes plastics outside plate, padded coaming and horizontal stroke
Beam, outside plate and padded coaming are attached on crossbeam, crossbeam and longitudinal beam screw joints, and described padded coaming is column foam
Aluminum, is wound with composite fibre layer outside described column foamed aluminium, the intersecting angle between upper and lower two-layer composite fibre is 60 degree；Described
Composite fibre is graphene fiber and steel fibre, and it compares 1 with weight:1 ratio mixed weaving forms.
Embodiment 3
A kind of composite fibre is wound around column foamed aluminium bumper system for vehicles, and it includes plastics outside plate, padded coaming and horizontal stroke
Beam, outside plate and padded coaming are attached on crossbeam, crossbeam and longitudinal beam screw joints, and described padded coaming is column foam
Aluminum, is wound with composite fibre layer outside described column foamed aluminium, the intersecting angle between upper and lower two-layer composite fibre is 90 degree；Described
Composite fibre is graphene fiber and steel fibre, and it compares 1 with weight:4 ratio mixed weaving forms.
Claims (3)
1. a kind of composite fibre is wound around column foamed aluminium bumper system for vehicles, and it includes plastics outside plate, padded coaming and crossbeam,
Outside plate and padded coaming are attached on crossbeam, crossbeam and longitudinal beam screw joints, and described padded coaming is column foamed aluminium, institute
State and outside column foamed aluminium, be wound with composite fibre layer, the intersecting angle between upper and lower two-layer composite fibre is 30-90 degree；Described multiple
Condensating fiber is graphene fiber and steel fibre, and it compares 2 with weight:1-1:4 ratio mixed weaving forms.
2. composite fibre as claimed in claim 1 is wound around column foamed aluminium bumper system for vehicles it is characterised in that described multiple
Condensating fiber thickness degree is 0.1-1mm, preferably 0.2-0.5mm.
3. composite fibre as claimed in claim 1 or 2 is wound around column foamed aluminium bumper system for vehicles it is characterised in that institute
State the column foamed aluminium being wound with composite fibre layer close-packed arrays between plastics outside plate and crossbeam, its a diameter of 5-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989308.2A CN106427842A (en) | 2016-11-10 | 2016-11-10 | Composite fiber-wound cylindrical foamed aluminum automobile bumper system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989308.2A CN106427842A (en) | 2016-11-10 | 2016-11-10 | Composite fiber-wound cylindrical foamed aluminum automobile bumper system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106427842A true CN106427842A (en) | 2017-02-22 |
Family
ID=58208243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989308.2A Pending CN106427842A (en) | 2016-11-10 | 2016-11-10 | Composite fiber-wound cylindrical foamed aluminum automobile bumper system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106427842A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011055929A1 (en) * | 2010-12-06 | 2012-06-06 | Hyundai Motor Co. | Multiple fiberglass reinforced and high strength plastic carrier |
| EP2796326A1 (en) * | 2011-12-20 | 2014-10-29 | Honda Motor Co., Ltd. | Automobile fiber-strengthening resin member and method for producing automobile fiber-strengthening resin member |
| US20140367981A1 (en) * | 2013-06-17 | 2014-12-18 | Ford Global Technologies, Llc | Bumper Beam Including a Tubular Aluminum Substrate Wrapped with Pre-Impregnated Carbon Fiber Fabric Layers |
| CN104691467A (en) * | 2015-01-06 | 2015-06-10 | 华侨大学 | Composite energy absorption device for collision and application |
| CN204472733U (en) * | 2015-01-20 | 2015-07-15 | 常州市飞拓模塑有限公司 | Federal bumper |
-
2016
- 2016-11-10 CN CN201610989308.2A patent/CN106427842A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011055929A1 (en) * | 2010-12-06 | 2012-06-06 | Hyundai Motor Co. | Multiple fiberglass reinforced and high strength plastic carrier |
| EP2796326A1 (en) * | 2011-12-20 | 2014-10-29 | Honda Motor Co., Ltd. | Automobile fiber-strengthening resin member and method for producing automobile fiber-strengthening resin member |
| US20140367981A1 (en) * | 2013-06-17 | 2014-12-18 | Ford Global Technologies, Llc | Bumper Beam Including a Tubular Aluminum Substrate Wrapped with Pre-Impregnated Carbon Fiber Fabric Layers |
| CN104691467A (en) * | 2015-01-06 | 2015-06-10 | 华侨大学 | Composite energy absorption device for collision and application |
| CN204472733U (en) * | 2015-01-20 | 2015-07-15 | 常州市飞拓模塑有限公司 | Federal bumper |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |