CN110641403A - Hierarchical paper folding type automobile collision energy absorption structure - Google Patents
Hierarchical paper folding type automobile collision energy absorption structure Download PDFInfo
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- CN110641403A CN110641403A CN201911006395.5A CN201911006395A CN110641403A CN 110641403 A CN110641403 A CN 110641403A CN 201911006395 A CN201911006395 A CN 201911006395A CN 110641403 A CN110641403 A CN 110641403A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 83
- 229910052751 metal Inorganic materials 0.000 claims abstract description 74
- 239000002184 metal Substances 0.000 claims abstract description 74
- 239000011148 porous material Substances 0.000 claims abstract description 22
- 230000006698 induction Effects 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 14
- 239000007769 metal material Substances 0.000 claims abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/017—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of aluminium or an aluminium alloy, another layer being formed of an alloy based on a non ferrous metal other than aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/018—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of a noble metal or a noble metal alloy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- 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
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
-
- 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
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- 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
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
- B60R2019/1866—Cellular structures
-
- 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
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R2019/264—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means using cellular structures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a layered paper folding type automobile collision energy absorption structure which comprises a plurality of energy absorption layers and paper folding type induction pipes, wherein the paper folding type induction pipes are metal pipes which are made of metal sheets through a three-pump folding method and are folded in a Z shape; the adjacent energy absorbing layers are connected with each other through the paper folding induction pipe; the energy absorption layers comprise a honeycomb energy absorption layer and a porous material energy absorption layer which are coaxially distributed from top to bottom; the honeycomb energy absorption layer comprises two first metal plates and a metal material which is filled between the two first metal plates and has a special-shaped honeycomb structure; the porous material energy absorption layer comprises two second metal plates and a porous metal material filled between the two second metal plates, and the invention has good dynamic performance and safety; the aluminum alloy, titanium metal and porous metal are adopted to ensure enough strength and energy absorption, and meanwhile, the composite material has very light weight.
Description
Technical Field
The invention relates to a layer-level paper folding type automobile collision energy absorption structure
Background
Along with the rapid development of the automobile industry in China and the great improvement of the automobile holding capacity, the casualties and property losses caused by traffic accidents in China are increased every year, and the passive safety performance of automobiles is concerned more; meanwhile, the environmental pollution problem caused by industrial development is increasingly serious, and researches show that the oil consumption of the automobile is closely related to the automobile quality, the oil consumption is reduced by 6-8% when the automobile quality is reduced by 10%, and the carbon emission is reduced therewith, so that the light weight design of the automobile has very important significance.
The energy absorption box structure arranged on the automobile beam and longitudinal beam is a part which is mainly used for absorbing collision energy of an automobile and absorbs the collision energy by plastic deformation generated by crushing; at present, most of automobile collision energy absorption structures are square or round pipe type components, although the structure is simple and the production cost is low, the automobile collision energy absorption structures are not ideal in safety because of high peak stress and low specific energy absorption; the energy absorption structure with a more complex structure is improved in safety, but the production cost and the maintenance cost are high, and meanwhile, the existing automobile collision energy absorption box generally has heavier mass and does not meet the lightweight design requirement of the current automobile; therefore, the designed automobile energy absorption structure with high energy absorption total, high energy absorption efficiency, light weight and simple structure has very important significance for the safety, environmental protection and economy of the automobile.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a hierarchical folded paper-shaped automobile collision energy absorption structure.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the device comprises a plurality of energy absorbing layers and a paper folding induction pipe, wherein the paper folding induction pipe is a metal pipe which is made of a metal sheet by a three-pump folding method and is folded in a Z shape; the adjacent energy absorbing layers are connected with each other through the paper folding induction pipe; the energy absorption layers comprise a honeycomb energy absorption layer and a porous material energy absorption layer which are coaxially distributed from top to bottom; the honeycomb energy absorption layer comprises two first metal plates and a metal material which is filled between the two first metal plates and has a special-shaped honeycomb structure; the porous material energy absorption layer comprises two second metal plates and a porous metal material filled between the two second metal plates.
In another preferred embodiment, the metal material of the special-shaped honeycomb structure comprises a plurality of honeycomb cells connected with each other, the honeycomb cells comprise six metal plate feet, one ends of the six metal plates are fixedly connected together and are arranged around the fixedly connected points in a rotating array at uniform intervals, the metal plate feet comprise three folding surfaces which are subjected to vertical-horizontal-folding bending deformation at 90 degrees, and the cross sections of the metal plate feet are
Cross-section of honeycomb cellAnd the other ends of the six metal plate feet of each honeycomb cell are respectively connected with the other ends of one metal plate foot of each of six adjacent honeycomb cells distributed on the periphery of the honeycomb cell in a one-to-one correspondence mode.
In another preferred embodiment, the energy absorption layer comprises a first honeycomb energy absorption layer, a second honeycomb energy absorption layer and a porous material energy absorption layer which are arranged from top to bottom, and the energy absorption layers are mutually connected through the folded paper-shaped induction pipes.
In another preferred embodiment, the first honeycomb energy absorption layer, the second honeycomb energy absorption layer and the porous material energy absorption layer are all in an annular column shape, the outer diameter size of the second honeycomb energy absorption layer is larger than that of the first honeycomb energy absorption layer and that of the porous material energy absorption layer, and the second honeycomb energy absorption layer respectively has overlapping parts with the projections of the first honeycomb energy absorption layer and the porous material energy absorption layer in the axial direction.
In another preferred embodiment, the metal tube comprises a plurality of sections of sequentially connected hexagonal prism-shaped aluminum alloy metal tubes, and the included angle between the bottom surface and the side edge of each hexagonal prism is 50 degrees.
In another preferred embodiment, the adjacent energy absorbing layers are connected with each other through 4 paper folding induction pipes uniformly distributed between the adjacent energy absorbing layers.
In another preferred embodiment, the metal material of the honeycomb structure is made of aluminum alloy.
In another preferred embodiment, the two first metal plates and the two second metal plates are titanium metal plates.
In another preferred embodiment, the two first metal plates and the two second metal plates are respectively provided with openings distributed in an array.
In another preferred embodiment, the ring columns are regular hexagonal ring columns.
The invention has the advantages that
1. The use of the paper folding structure enables the collision energy absorption structure to have good dynamic performance, the induction pipe of the paper folding structure can obviously improve the natural frequency of the structure, the improvement of the natural frequency can effectively prevent the situations of structural instability, failure and the like caused by resonance, the higher total absorption value and the lower initial peak stress of the induction pipe accord with the design requirements of the collision energy absorption structure of the automobile, and meanwhile, the paper folding structure has excellent dynamic performance, can better deal with the collision under the conditions of low speed and high speed, and reduces the maintenance cost; through hierarchical structural arrangement, the peak stress of the structure can be reduced, the specific energy absorption of the structure is improved, and the safety is high.
2. The honeycomb cell element of dysmorphism honeycomb has very obvious rotatory characteristic, after the car receives the collision, when collision energy transmitted this honeycomb through titanium metal sheet, through the rotatory range upon range of deformation of conquassation, can very high-efficient absorption collision energy, compare in ordinary hexagon honeycomb, have higher specific energy-absorbing, honeycomb's used material is the aluminum alloy, its density is little, accords with lightweight design demand, and the aluminum alloy is cheap simultaneously, can reduce the manufacturing cost of this structure.
3. The outer diameter of the second honeycomb energy absorption layer is larger than the outer diameter of the first honeycomb energy absorption layer and the outer diameter of the porous material energy absorption layer, the second honeycomb energy absorption layer and the porous material energy absorption layer are arranged from top to bottom according to the cross sectional area 'small-large-small', and the drum-shaped hierarchical structure enables the whole structure to have obvious rotating deformation besides the stacking crushing behavior when collision deformation occurs, and the effect brought by the behavior is that the peak stress of the structure is reduced, and the specific energy absorption of the structure is improved.
4. The adjacent energy absorbing layers are connected with each other through 4 paper folding induction pipes which are uniformly distributed between the adjacent energy absorbing layers, so that the overall stability is improved.
5. The metal tube and the honeycomb structure are made of aluminum alloy with low density, so that the light-weight design requirement is met, meanwhile, the aluminum alloy is low in price, and the production cost of the structure can be reduced.
6. Titanium metal low temperature performance is good, the hot strength is high, can adapt to the collision condition that takes place under the bad weather, and the great intensity of titanium metal board can be fine with the energy transfer to middle honeycomb with the collision production to absorb most collision energy by honeycomb, titanium metal density is little simultaneously, accords with lightweight design demand.
7. The metal plate is provided with the openings distributed in an array mode, so that the mass can be further reduced while the mechanical property of the structure is not influenced.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, a laminated folded paper-like automobile collision energy absorbing structure of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a front view of a preferred embodiment of the present invention;
FIG. 3 is a top view of a preferred embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first honeycomb energy absorption layer according to a preferred embodiment of the present invention;
FIG. 5 is a top view of a first metal plate in accordance with a preferred embodiment of the present invention;
FIG. 6 is a cross-sectional view of a shaped honeycomb structure in accordance with a preferred embodiment of the present invention;
fig. 7 is a cross-sectional view of a honeycomb cell of the heteromorphic honeycomb structure according to a preferred embodiment of the invention;
FIG. 8 is a schematic view of a paper-folded guiding tube according to a preferred embodiment of the present invention;
FIG. 9 is a front view of a paper-folded trap in accordance with a preferred embodiment of the present invention;
FIG. 10 is a schematic structural view of a hexagonal prism-shaped aluminum alloy metal tube according to a preferred embodiment of the present invention;
FIG. 11 is a schematic structural diagram of an energy absorbing layer made of porous material according to a preferred embodiment of the present invention;
FIG. 12 is a top view of a second metal plate according to a preferred embodiment of the present invention.
Detailed Description
In an embodiment, referring to fig. 1 to 12, a layered folded paper-shaped automobile collision energy absorption structure according to the present invention includes a first honeycomb energy absorption layer 10, a second honeycomb energy absorption layer 20, and a porous material energy absorption layer 30, which are coaxially distributed from top to bottom, wherein the energy absorption layers are connected to each other through 4 folded paper-shaped induction pipes 40, the folded paper-shaped induction pipes 40 are formed by cutting, shaping, stamping, gluing, trimming, etc. an aluminum alloy sheet is made into three sections of hexagonal prism-shaped aluminum alloy metal pipes 41 sequentially connected to each other by a three-pump folding method, and an included angle β between a bottom surface of each hexagonal prism and a side edge is 50 °; the energy absorbing structure is characterized in that the first honeycomb energy absorbing layer 10, the second honeycomb energy absorbing layer 20 and the porous material energy absorbing layer 30 are all regular hexagonal ring columns, the outer diameter of the second honeycomb energy absorbing layer 20 is larger than the outer diameter of the first honeycomb energy absorbing layer 10 and the outer diameter of the porous material energy absorbing layer 30, the second honeycomb energy absorbing layer 20 and the projections of the first honeycomb energy absorbing layer 10 and the porous material energy absorbing layer 30 in the axial direction respectively have overlapping parts, and the energy absorbing structure is integrally in a drum shape.
The first honeycomb energy absorption layer 10 comprises two first metal plates 11 and a special-shaped honeycomb structure 12 filled between the two first metal plates 11 and made of aluminum alloy, the first metal plates 11 are titanium metal plates provided with openings distributed in an array mode, the special-shaped honeycomb structure 12 comprises a plurality of honeycomb cells connected with one another, each honeycomb cell comprises six metal plate feet, one ends of the six metal plates are fixedly connected together and are arranged in an array mode at intervals around the fixedly connected points, each metal plate foot comprises three folding surfaces which are bent and deformed in a vertical-horizontal-bending mode at 90 degrees, and the cross section of each metal plate foot is
Cross-section of honeycomb cell
The other ends of the six metal plate legs of each honeycomb cell are respectively and correspondingly connected with the other ends of one metal plate leg of each of six adjacent honeycomb cells distributed on the periphery of the honeycomb cell one by one, namely, any metal plate leg can be rotated by alpha being 60 degrees around a fixed connection point and can be overlapped with the adjacent metal plate leg; the second honeycomb energy absorbing layer 20 is different from the first honeycomb energy absorbing layer 10 only in that the outer diameter size of the second honeycomb energy absorbing layer is larger than that of the first honeycomb energy absorbing layer 10, and therefore, the structure of the second honeycomb energy absorbing layer 20 is not described in detail in this embodiment; the porous material energy absorption layer 30 comprises two second metal plates 31 and a porous metal material 32 filled between the two second metal plates 31, and the second metal plates 31 are titanium metal plates provided with openings distributed in an array.
The three energy absorbing layers are arranged from top to bottom according to the 'small-big-small' mode, the drum-shaped hierarchical structure is different from the traditional energy absorbing box and is of a columnar structure with the same height, the whole structure is enabled to have stacking crushing behavior and obvious rotation deformation when collision deformation occurs, the effect brought by the behavior is that the peak stress of the structure is reduced, the specific energy absorption of the structure is improved, and the safety is high; the paper folding induction pipe 40 has high natural frequency, can improve the stability of the whole structure, and prevent the structural failure of the energy absorption structure caused by resonance, meanwhile, the paper folding induction pipe 40 has good dynamic performance, and can help the whole structure to effectively deal with the collision conditions under different conditions of low speed, high speed and the like, and reduce the maintenance cost, the titanium metal, the aluminum alloy and the porous metal material 32 adopted by the embodiment have very low density and high strength, so that the energy absorption structure can ensure enough strength and energy absorption performance, has very light quality, and meets the purpose of light weight design of an automobile, in addition, the parts of the embodiment are relatively independent, the replacement is easy, the maintenance cost is low, the maintenance is fast and low cost when the energy absorption structure part is damaged, the trouble caused by long maintenance period is avoided, and the waste of residual materials is not easily caused, has high economical efficiency and environmental protection.
The above embodiments are only used to further illustrate a laminated folding paper-like automobile collision energy absorbing structure of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a hierarchical form car collision energy-absorbing structure of folding paper which characterized in that: the device comprises a plurality of energy absorbing layers and a paper folding induction pipe, wherein the paper folding induction pipe is a metal pipe which is made of a metal sheet by a three-pump folding method and is folded in a Z shape; the adjacent energy absorbing layers are connected with each other through the paper folding induction pipe; the energy absorption layers comprise a honeycomb energy absorption layer and a porous material energy absorption layer which are coaxially distributed from top to bottom; the honeycomb energy absorption layer comprises two first metal plates and a metal material which is filled between the two first metal plates and has a special-shaped honeycomb structure; the porous material energy absorption layer comprises two second metal plates and a porous metal material filled between the two second metal plates.
2. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the metal material of the special-shaped honeycomb structure comprises a plurality of mutually connected honeycomb cells, and each honeycomb cell comprises six metal plate feet and six metal plate feetOne end of each metal plate is fixedly connected together and uniformly arranged in a rotating array at intervals around the fixed connection point, each metal plate foot comprises three folding surfaces which are subjected to vertical-horizontal-folding bending deformation at 90 degrees, and the cross section of each metal plate foot is
Cross-section of honeycomb cell
And the other ends of the six metal plate feet of each honeycomb cell are respectively connected with the other ends of one metal plate foot of each of six adjacent honeycomb cells distributed on the periphery of the honeycomb cell in a one-to-one correspondence mode.
3. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1 or 2, characterized in that: the energy absorption layer comprises a first honeycomb energy absorption layer, a second honeycomb energy absorption layer and a porous material energy absorption layer which are arranged from top to bottom, and the energy absorption layers are connected with one another through the paper folding induction pipes.
4. The cascade-folded paper-like automobile collision energy absorption structure according to claim 3, characterized in that: the first honeycomb energy absorbing layer, the second honeycomb energy absorbing layer and the porous material energy absorbing layer are all in an annular column shape, the outer diameter of the second honeycomb energy absorbing layer is larger than that of the first honeycomb energy absorbing layer and the porous material energy absorbing layer, and the second honeycomb energy absorbing layer and the first honeycomb energy absorbing layer and the projection of the porous material energy absorbing layer in the axial direction have overlapping parts.
5. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the metal pipe comprises a plurality of sections of hexagonal prism-shaped aluminum alloy metal pipes which are sequentially connected, and the included angle between the bottom surface of each hexagonal prism and the side edge is 50 degrees.
6. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the adjacent energy absorbing layers are connected with each other through 4 paper folding induction pipes which are uniformly distributed between the adjacent energy absorbing layers.
7. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the metal material of the honeycomb structure is made of aluminum alloy.
8. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the two first metal plates and the two second metal plates are titanium metal plates.
9. The cascade-folded paper-like automobile collision energy absorption structure according to claim 1, characterized in that: the two first metal plates and the two second metal plates are respectively provided with openings distributed in an array manner.
10. The cascade-folded paper-like automobile collision energy absorption structure according to claim 4, wherein: the ring column is a regular hexagon ring column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911006395.5A CN110641403A (en) | 2019-10-22 | 2019-10-22 | Hierarchical paper folding type automobile collision energy absorption structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911006395.5A CN110641403A (en) | 2019-10-22 | 2019-10-22 | Hierarchical paper folding type automobile collision energy absorption structure |
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| CN110641403A true CN110641403A (en) | 2020-01-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027972A (en) * | 2021-02-26 | 2021-06-25 | 复旦大学 | Truncated cone-shaped bistable energy-absorbing array structure |
| CN113236705A (en) * | 2021-04-06 | 2021-08-10 | 广州大学 | Adjustable energy absorbing device based on paper folding structure |
| CN113844113A (en) * | 2021-09-28 | 2021-12-28 | 东南大学 | Honeycomb material based on bidirectional stacking three-pump folding |
| CN114934965A (en) * | 2022-04-27 | 2022-08-23 | 梧州学院 | Multi-cell energy absorption structure with double gradient levels |
| US11643044B2 (en) | 2021-02-04 | 2023-05-09 | Ford Global Technologies, Llc | Active grille shutter with pedestrian protection |
| CN116398567A (en) * | 2023-03-27 | 2023-07-07 | 江苏科技大学 | Corrugated thin-wall three-layer buffering energy-absorbing structure and manufacturing method thereof |
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2019
- 2019-10-22 CN CN201911006395.5A patent/CN110641403A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11643044B2 (en) | 2021-02-04 | 2023-05-09 | Ford Global Technologies, Llc | Active grille shutter with pedestrian protection |
| CN113027972A (en) * | 2021-02-26 | 2021-06-25 | 复旦大学 | Truncated cone-shaped bistable energy-absorbing array structure |
| CN113027972B (en) * | 2021-02-26 | 2022-05-20 | 复旦大学 | Truncated cone-shaped bistable energy-absorbing array structure |
| CN113236705A (en) * | 2021-04-06 | 2021-08-10 | 广州大学 | Adjustable energy absorbing device based on paper folding structure |
| CN113236705B (en) * | 2021-04-06 | 2022-12-20 | 广州大学 | Adjustable energy absorbing device based on paper folding structure |
| CN113844113A (en) * | 2021-09-28 | 2021-12-28 | 东南大学 | Honeycomb material based on bidirectional stacking three-pump folding |
| CN114934965A (en) * | 2022-04-27 | 2022-08-23 | 梧州学院 | Multi-cell energy absorption structure with double gradient levels |
| CN116398567A (en) * | 2023-03-27 | 2023-07-07 | 江苏科技大学 | Corrugated thin-wall three-layer buffering energy-absorbing structure and manufacturing method thereof |
| CN116398567B (en) * | 2023-03-27 | 2023-09-22 | 江苏科技大学 | Corrugated thin-wall three-layer buffering energy-absorbing structure and manufacturing method thereof |
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