CN104691467B - Collision composite endergonic device and purposes - Google Patents
Collision composite endergonic device and purposes Download PDFInfo
- Publication number
- CN104691467B CN104691467B CN201510004543.5A CN201510004543A CN104691467B CN 104691467 B CN104691467 B CN 104691467B CN 201510004543 A CN201510004543 A CN 201510004543A CN 104691467 B CN104691467 B CN 104691467B
- Authority
- CN
- China
- Prior art keywords
- fiber layer
- carbon fiber
- layer
- containing cavity
- energy
- 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.)
- Expired - Fee Related
Links
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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R19/22—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly cellular material, e.g. solid foam
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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 provides a kind of collision composite endergonic device, including press section and spalling portion；There is in described spalling portion a containing cavity, and stacking is arranged at the fibrous layer of described containing cavity sidewall；The inside of described containing cavity is filled with energy-absorbing material；Described fibrous layer is divided into and is arranged at the silk fiber layer of internal layer and stacking is arranged at a plurality of carbon fiber layers outside described silk fiber layer；Fiber alignment angle in described carbon fiber layer differs；Described press section includes pressure ram and stripper plate；Described pressure ram and described containing cavity are interference fit, and during by External Force Acting, one end of described pressure ram is stretched in described containing cavity, extrudes described energy-absorbing material；The other end of described pressure ram connects stripper plate.
Description
Technical field
The present invention relates to a kind of energy absorption device, particularly relate to a kind of integrated use longitudinal compression energy-absorbing, laterally
Extruding energy-absorbing, spalling energy-absorbing and the collision composite endergonic device of tear energy-absorbing.
Background technology
Along with the frequent generation of vehicle accident, the crashworthiness of automobile is increasingly subject to people's attention, good
Good energy absorption device can protect the safety of occupant in automobile collision accident, saves the life of people, alleviates accident
The extent of injury of middle people.Therefore, the designing technique of vehicle body endergonic structure has become as current vehicle safety and sets
The key technology of meter.
At present, the endergonic structure of most of bodies of a motor car is still and is made up of thin-wall pipe, when colliding,
Mainly still use traditional energy-absorbing mode compression energy-absorbing.But, compression pattern energy-absorbing mode
The most single, often make energy impact load fluctuation in absorption process relatively big, cause endergonic structure energy-absorbing not fill
Point, energy absorbing efficiency low, and, adaptation condition scope is the narrowest.Therefore, conventional compression energy-absorbing mode
Can not meet the vehicle safety requirement to endergonic structure, develop a kind of suction with novel energy-absorbing form
Energy structure is particularly important.
Summary of the invention
Technical problem underlying to be solved by this invention is to overcome conventional compression energy absorption device energy-absorbing mode single
Defect, appropriate design goes out simple in construction, can with the novel energy absorption device of stability and high efficiency energy-absorbing,
Secondary technical problem is that to be solved by this invention requires the existing enough intensity of this device and toughness, again
The collision of some strength can be born, to protect the safety of occupant.
In order to solve above-mentioned technical problem, a kind of collision composite endergonic device provided by the present invention, including
Press section and spalling portion；There is in described spalling portion a containing cavity, and stacking is arranged at described containing cavity side
The fibrous layer of wall；The inside of described containing cavity is filled with energy-absorbing material；Described fibrous layer is divided into and is arranged at internal layer
Silk fiber layer and stacking be arranged at a plurality of carbon fiber layers outside described silk fiber layer；Described carbon
Fiber alignment angle in fibrous layer differs；
Described press section includes pressure ram and stripper plate；Described pressure ram and described containing cavity are interference fit,
During by External Force Acting, one end of described pressure ram is stretched in described containing cavity, extrudes described energy-absorbing material；
The other end of described pressure ram connects stripper plate.
In a preferred embodiment: described carbon fiber layer is divided into stacking from inside to outside arrange and have same thickness
The first carbon fiber layer, the second carbon fiber layer and the 3rd carbon fiber layer.
In a preferred embodiment: the fiber alignment angle in described first carbon fiber layer and the folder of vertical direction
Angle is 45 °；Fiber alignment angle in second carbon fiber layer is 0 ° with the angle of vertical direction；3rd carbon
Fiber alignment angle in fibrous layer is-45 ° with the angle of vertical direction；Fiber row in silk fiber layer
Row angle is 0 ° with the angle of vertical direction.
In a preferred embodiment: the material of described carbon fiber layer is carbon fibre reinforced composite.
In a preferred embodiment: between described silk fiber layer and the 3rd carbon fiber layer, have 7-10mm's
Gap.
In a preferred embodiment: use between described first fibrous layer, the second fibrous layer and the 3rd fibrous layer
SL3334 strength Wear Characteristics of Epoxy Adhesive is even.
In a preferred embodiment: described energy-absorbing material is foamed aluminium；Described foamed aluminium and containing cavity were in
Cross cooperation.
In a preferred embodiment: described pressure ram and stripper plate use entity structure, and densified process
Carbon fibre reinforced composite.
In a preferred embodiment: described fibrolaminar cross section is rectangle.
Present invention also offers a kind of use being applied in the vehicles by above-mentioned collision composite endergonic device
On the way.
Compared to prior art, the invention has the beneficial effects as follows:
1. a kind of collision composite endergonic device that the present invention provides, when energy absorption device is collided, first,
Foamed aluminium is squeezed the longitudinal compression of bar, and longitudinal compression energy-absorbing occurs；Then foamed aluminium is because of lateral expansion
Afford the transverse shear stress of whole device wall, transverse shear stress energy-absorbing occurs.Subsequently, the four of silk fiber housing
It is squeezed the extruding of bar week and spalling, spalling energy-absorbing occurs；The surrounding of first, second and third layer of carbon fiber shell
Torn by the conquassation of compression plate, tear energy-absorbing occurs；Finally, along with the fibrous layer of whole device compresses,
Whole device is gathered because of compressing, thus enhances the intensity of whole device, takes advantage of in thereby protecting car
The safety of member.Fully it is compounded with multiple energy-absorbing mode, improves the energy absorbing efficiency of energy absorption device, it is ensured that energy
Fully absorbing of amount.
2. collision composite endergonic device have employed composite structure so that device impact force is rationally divided
Join, alleviate the local pressure of material.
3. collision composite endergonic device uses shell structure, has simple in construction, and intensity is high, good stability,
The advantages such as energy-absorbing effect is good.
4. collision composite endergonic device uses carbon fibre reinforced composite (CFRP) and silkworm silk, whole improving
While the intensity of individual device and energy absorption efficiency, it also is compliant with the theory of environmental protection, environment will not be caused dirt
Dye.
5. collision composite endergonic device applied range, can be used on the various device needing energy-absorbing, and
Stable performance, is not affected by the external environment.
6. collision composite endergonic device has inserted foamed aluminium in hollow-core construction, reduces in collision process and produces
Raw vibrations, make impulsive force tend to relaxing, enhance the energy-absorbing stability of this device simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart colliding composite endergonic device in the preferred embodiment of the present invention；
Fig. 2 is fibrolaminar cross sectional representation in the preferred embodiment of the present invention.
Fig. 3 is the front press section of collision and the position view in spalling portion in the preferred embodiment of the present invention；
Fig. 4 is collision rift press section and the position view in spalling portion in the preferred embodiment of the present invention；
Fig. 5 is the energy absorption curve figure colliding composite endergonic device in the preferred embodiment of the present invention.
Detailed description of the invention
With embodiment, the present invention is elaborated below in conjunction with the accompanying drawings.
With reference to Fig. 1-2, a kind of collision composite endergonic device, including press section 1 and spalling portion 2；Described swollen
There is in splitting portion 2 containing cavity 21, and stacking is arranged at the fibrous layer of described containing cavity 21 sidewall, institute
Stating fibrolaminar cross section is rectangle；The inside of described containing cavity 21 is filled with energy-absorbing material 22；This enforcement
In example, described energy-absorbing material 22 is foamed aluminium, and is interference fits with affiliated containing cavity 21.Described fiber
Layer is divided into and is arranged at the silk fiber layer 23 of internal layer and stacking is arranged at answering outside described silk fiber layer
Several carbon fiber layers；Described carbon fiber layer is divided into stacking from inside to outside to arrange and has the first carbon of same thickness
Fibrous layer the 24, second carbon fiber layer 25 and the 3rd carbon fiber layer 26.In described first carbon fiber layer 24
Fiber alignment angle is 45 ° with the angle of vertical direction；Fiber alignment angle in second carbon fiber layer 25
It it is 0 ° with the angle of vertical direction；Fiber alignment angle in 3rd carbon fiber layer 26 and the folder of vertical direction
Angle is-45 °；Fiber alignment angle in silk fiber layer 23 is 0 ° with the angle of vertical direction.Silkworm silk
It is high that fibrous layer 23 has intensity, good toughness, light weight, the feature of the aspects such as energy absorption efficient stable,
Improve the performance of whole device；Foamed aluminium material has higher and controlled porosity, and specific surface area is big,
Uniform foamed aluminium can absorb the energy of all directions, these characteristics based on foamed aluminium so that it is in pressure
Compression process has higher energy absorbing efficiency and stable compact model, the simultaneously property of the sound absorption damping of foamed aluminium
Can, vibrations and noise that car crass produces can be reduced.
Described press section 1 includes pressure ram 11 and stripper plate 12；Described pressure ram 11 and described containing cavity
21 is interference fit, and during by External Force Acting, one end of described pressure ram 11 is stretched in described containing cavity 21,
Extrude described energy-absorbing material 22；The other end of described pressure ram 11 connects stripper plate 12.Described pressure ram 11
Entity structure, and the carbon fibre reinforced composite of densified process is used with stripper plate 12.
In the present embodiment, the material of described carbon fiber layer is carbon fibre reinforced composite.Owing to carbon fiber increases
Strong composite has the stress plateau of Gao Erkuan in loading process so that energy absorption during it tears
Aspect efficient stable, and carbon fibre reinforced composite also to have light weight, intensity height, good toughness etc. concurrently excellent
Point.There is between described silk fiber layer 23 and the 3rd carbon fiber layer 26 gap of 7-10mm.Described
SL3334 strength Wear Characteristics of Epoxy Adhesive is used between one fibrous layer the 24, second fibrous layer 25 and the 3rd fibrous layer 26
Even.Owing to SL3334 strength epoxy glue has glue-joint strength height, mechanical property is good, and environmental resistance ability is strong
Etc. advantage, improve the mechanical property between fibrous layer.
With further reference to Fig. 3-4, pressure ram 11 and silk fiber layer 23 are interference fit, when device is subject to
During collision, pressure ram 11 is moved along the inwall of silk fiber layer 23 under impact force effect, now
Pressure ram 11 longitudinal compression foamed aluminium, the energy-absorbing longitudinal compression energy-absorbing of generation first stage, then,
Foamed aluminium is owing to lateral expansion is by the transverse shear stress of whole device wall, and the energy-absorbing that second stage occurs is horizontal
To extruding energy-absorbing.Meanwhile, in the silk fiber layer 23 of pressure ram 11 press-in and its interference fit so that silkworm
, there is the energy-absorbing spalling energy-absorbing of phase III in silk fiber layer 23 spalling；Afterwards, at the work of impact force
With lower extrusion plate 12 compressed carbon fibrous layer, during fibrous layer pressurized, due to the row of the fiber in three layers of fibrous layer
Column direction is different, and therefore, fibrous layer will be 90 when being compressedoCorner is toward front, rear, left and right four
Individual direction tears, and the energy-absorbing tear energy-absorbing of fourth stage occurs；By squeezing after tearing due to fibrous layer
Pressure, when pressing plate is compressed to apart from bottom about the 6-7mm of this energy absorption device so that the bottom of energy absorption device
Rigidity increases, and stops the further mobile of pressing plate, preferably protects occupant so that it is escape injury.
The energy-absorbing effect of whole device is as shown in Figure 5.
The above, the only present invention preferably detailed description of the invention, but the protection domain of invention does not limit to
In this, any those familiar with the art, in the technical scope that the invention discloses, can think easily
The change arrived or replacement, all should contain within protection scope of the present invention.Therefore, the protection model of the present invention
Enclose and be as the criterion with scope of the claims.
Claims (10)
1. a collision composite endergonic device, it is characterised in that: include press section and spalling portion；Described
There is in spalling portion a containing cavity, and stacking is arranged at the fibrous layer of described containing cavity sidewall；Described
The inside of containing cavity is filled with energy-absorbing material；Described fibrous layer is divided into the silk fiber layer being arranged at internal layer
And stacking is arranged at a plurality of carbon fiber layers outside described silk fiber layer；In described carbon fiber layer
Fiber alignment angle differ；
Described press section includes pressure ram and stripper plate；Described pressure ram and described containing cavity are that interference is joined
Closing, during by External Force Acting, one end of described pressure ram is stretched in described containing cavity, extrudes described suction
Can material；The other end of described pressure ram connects stripper plate.
Collision composite endergonic device the most according to claim 1, it is characterised in that: described carbon is fine
Dimension layer is divided into stacking from inside to outside arrange and have the first carbon fiber layer of same thickness, the second carbon fiber
Layer and the 3rd carbon fiber layer.
Collision composite endergonic device the most according to claim 2, it is characterised in that: described first
Fiber alignment angle in carbon fiber layer is 45 ° with the angle of vertical direction；In second carbon fiber layer
The angle of fiber alignment angle and vertical direction be 0 °；Fiber alignment angle in 3rd carbon fiber layer
Degree is-45 ° with the angle of vertical direction；Fiber alignment angle in silk fiber layer and vertical direction
Angle be 0 °.
Collision composite endergonic device the most according to claim 3, it is characterised in that: described carbon
Fibrolaminar material is carbon fibre reinforced composite.
Collision composite endergonic device the most according to claim 2, it is characterised in that: described silkworm silk
There is between fibrous layer and the 3rd carbon fiber layer the gap of 7-10mm.
Collision composite endergonic device the most according to claim 2, it is characterised in that: described first
SL3334 strength Wear Characteristics of Epoxy Adhesive is used between carbon fiber layer, the second carbon fiber layer and the 3rd carbon fiber layer
Even.
Collision composite endergonic device the most according to claim 1, it is characterised in that: described energy-absorbing
Material is foamed aluminium；Described foamed aluminium and containing cavity are in interference fits.
Collision composite endergonic device the most according to claim 1, it is characterised in that: described extruding
Bar and stripper plate use entity structure, and the carbon fibre reinforced composite of densified process.
Collision composite endergonic device the most according to claim 1, it is characterised in that: described fiber
The cross section of layer is rectangle.
10. the collision composite endergonic device according to any one of claim 1-9 is applied to hand over by one kind
Purposes in logical instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004543.5A CN104691467B (en) | 2015-01-06 | 2015-01-06 | Collision composite endergonic device and purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004543.5A CN104691467B (en) | 2015-01-06 | 2015-01-06 | Collision composite endergonic device and purposes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104691467A CN104691467A (en) | 2015-06-10 |
| CN104691467B true CN104691467B (en) | 2016-11-02 |
Family
ID=53339141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004543.5A Expired - Fee Related CN104691467B (en) | 2015-01-06 | 2015-01-06 | Collision composite endergonic device and purposes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104691467B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3444146B1 (en) * | 2016-04-15 | 2020-04-08 | Nissan Motor Co., Ltd. | Energy absorption structure |
| CN106427842A (en) * | 2016-11-10 | 2017-02-22 | 无锡市明盛强力风机有限公司 | Composite fiber-wound cylindrical foamed aluminum automobile bumper system |
| CN106740616A (en) * | 2016-11-10 | 2017-05-31 | 无锡市明盛强力风机有限公司 | A kind of column foamed aluminium bumper system for vehicles |
| CN106884919B (en) * | 2017-03-02 | 2023-04-07 | 华侨大学 | Embedded multistage high-efficient energy-absorbing device |
| CN107097741B (en) * | 2017-05-31 | 2023-08-29 | 华侨大学 | Gradient composite collision energy-absorbing pipe fitting |
| CN109466486B (en) * | 2018-11-28 | 2022-03-04 | 华侨大学 | Sandwich level energy-absorbing device |
-
2015
- 2015-01-06 CN CN201510004543.5A patent/CN104691467B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104691467A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104691467B (en) | Collision composite endergonic device and purposes | |
| CN101353060B (en) | Energy-absorbing vehicle hood assembly with cushion inner structure | |
| CN209258229U (en) | Stiffener and stiffener for automobile | |
| CN106884919B (en) | Embedded multistage high-efficient energy-absorbing device | |
| CN207631172U (en) | Bumper reinforcement for vehicles | |
| CN103661029B (en) | Energy absorption type automobile seat | |
| CN104527555B (en) | Collision energy absorbing device with various energy absorbing forms and application thereof | |
| KR102019219B1 (en) | Vehicle rear structure | |
| CN108791113A (en) | Highly integrated all-in-one car ceiling with low peak endergonic structure | |
| CN107283669A (en) | Impact absorbing unit and its manufacture method and impact absorbing reinforcement | |
| CN211568115U (en) | Carbon-fibre composite's hydrogen can car threshold beam structure | |
| JP2016527120A (en) | Automotive axle carrier having a reinforcing member made of a fiber reinforced material | |
| CN208593358U (en) | A kind of vehicle energy absorption box of hexagonal honeycomb sandwich filling | |
| CN206884960U (en) | A kind of foamed aluminium/fiber weaving cloth compound vehicle collision prevention girders | |
| CN206664719U (en) | A kind of automobile engine cover supporting plate structure | |
| CN107972618A (en) | A kind of automobile collision energy absorber for being classified crumple | |
| CN213138674U (en) | Interior trim structure for automobile door | |
| CN203666571U (en) | Automobile door collision prevention device | |
| CN110154703A (en) | Composite filled Aluminum Honeycomb Cores and the arrangements for automotive doors for using the aluminium core | |
| CN208559501U (en) | A kind of crossbeam cover plate assembly | |
| CN104619533B (en) | Automobile absorber component, the automobile door plate component comprising the shock absorber hardware and includes the automobile of the automobile door plate component | |
| CN206797189U (en) | Combined type honeycomb energy-absorption box | |
| CN205801255U (en) | A kind of anti-collision automobile side wall structure | |
| CN104691623A (en) | Front longitudinal beam structure | |
| CN204527326U (en) | A kind of front rail structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161102 Termination date: 20220106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |