CN111660977A - Energy absorption box - Google Patents
Energy absorption box Download PDFInfo
- Publication number
- CN111660977A CN111660977A CN202010621435.3A CN202010621435A CN111660977A CN 111660977 A CN111660977 A CN 111660977A CN 202010621435 A CN202010621435 A CN 202010621435A CN 111660977 A CN111660977 A CN 111660977A
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- honeycomb structure
- level honeycomb
- energy absorption
- box body
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 9
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 238000009795 derivation Methods 0.000 claims description 3
- 241000264877 Hippospongia communis Species 0.000 description 34
- 239000006096 absorbing agent Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
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
-
- 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
Abstract
The invention provides an energy absorption box which comprises an energy absorption body, wherein the energy absorption body is sequentially provided with a shell, a porous core and an internal corrugated pipe from outside to inside; the middle part of the porous core body is provided with a yielding channel, and the internal corrugated pipe is arranged in the yielding channel; the porous core body consists of an upper box body and a lower box body; the upper box body sequentially comprises a plurality of layers of surface-level honeycomb structures with sequentially-increased orders from top to bottom; the surface-level honeycomb structure positioned at the uppermost part of the upper box body is specifically a first surface-level honeycomb structure, basic units of the first surface-level honeycomb structure are specifically first hexagons, the surface-level honeycomb structure positioned below the first surface-level honeycomb structure is specifically a second surface-level honeycomb structure, and the basic units of the second surface-level honeycomb structure are formed by inwards deriving six second hexagons from corner units of the first hexagons; the lower box body is filled with a surface type lattice structure. By applying the technical scheme, the energy absorption process can be stable, and the energy absorption capacity of the vehicle body is improved.
Description
Technical Field
The invention relates to the field of vehicle safety, in particular to an energy absorption box.
Background
As is known, an energy absorption box of a passenger car is an energy absorption device arranged on a cross beam and a frame longitudinal beam, exists as a low-speed safety protection system, is matched with a passenger restraint system to form a defense line which is most important for reducing the casualty risk of passengers, and has very important research value. When the passenger car collides, the energy of the passenger car is mainly borne by three aspects, namely a car body structure, a passenger restraint system and a human body, so that the energy absorption capacity of the car body is reasonably improved, the burden of the passenger restraint system can be reduced, the injury received by personnel can be reduced, and the survival possibility of the passengers is improved in a limited living space. At present, the energy absorption box structure applied to most passenger car bodies is still a common structural pipe fitting and comprises a thin-wall square pipe, a thin-wall round pipe and the like, and the anti-collision effect is poor.
Disclosure of Invention
The invention aims to provide an energy absorption box, which has the advantages of realizing the stable energy absorption process and improving the energy absorption capacity of a vehicle body.
In order to solve the technical problem, the invention provides an energy absorption box which comprises an energy absorption body, wherein the energy absorption body is sequentially provided with a shell, a porous core and an internal corrugated pipe from outside to inside; the middle part of the porous core body is provided with a yielding channel, and the internal corrugated pipe is arranged in the yielding channel; the porous core body consists of an upper box body and a lower box body; the upper box body sequentially comprises a plurality of layers of surface-level honeycomb structures with sequentially-increased orders from top to bottom; the surface-level honeycomb structure positioned at the uppermost part of the upper box body is specifically a first surface-level honeycomb structure, basic units of the first surface-level honeycomb structure are specifically first hexagons, the surface-level honeycomb structure positioned below the first surface-level honeycomb structure is specifically a second surface-level honeycomb structure, and the basic units of the second surface-level honeycomb structure are formed by inwards deriving six second hexagons from corner units of the first hexagons; the lower box body is filled with a surface type lattice structure.
In a preferred embodiment, the basic unit of the planar crystal structure is composed of six hemispheres facing away from each other; the radius of the hemispheroids is three quarters of the distance from the plane to the center of the basic unit of the face-type crystal structure, and intersecting parts of the hemispheroids are removed in the process of forming the basic unit of the face-type crystal structure.
In a preferred embodiment, the face-level honeycomb structure located below the second face-level honeycomb structure is specifically a third face-level honeycomb structure, and the basic unit of the third face-level honeycomb structure is formed by inward derivation of six third hexagons from the corner units of the second hexagons.
In a preferred embodiment, the cross section of the lower box body is sequentially increased from top to bottom.
In a preferred embodiment, the cross section of the abdicating channel is sequentially increased from top to bottom, and the cross section of the inner corrugated pipe is also sequentially increased from top to bottom.
In a preferred embodiment, the pipe wall of the inner corrugated pipe is sequentially provided with a carbon fiber layer, an aluminum alloy layer and a glass fiber layer from outside to inside.
In a preferred embodiment, the housing is a titanium alloy housing; six side faces are uniformly distributed on the side of the shell, and an induction long groove and a circular defect hole are formed in each side face at intervals.
In a preferred embodiment, the inducing long groove is horizontally disposed above the side surface.
In a preferred embodiment, the circular defect holes are sequentially arranged from top to bottom.
In a preferred embodiment, an upper flange and a lower flange are fixed above and below the energy absorber respectively.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the energy absorption level is high, and the energy absorption effect is good.
The lower box filling surface type lattice structure has higher energy absorption level compared with a rod type lattice structure. In the process of compression collision, considerable kinetic energy can be absorbed through small plastic deformation, the burden borne by a passenger restraint system and the body of a passenger is reduced to a great extent, and the safety of the passenger is effectively ensured. In addition, compared with the traditional honeycomb, the novel honeycomb filled in the upper box body has higher energy absorption potential and can dissipate more energy in unit mass.
2. The energy absorption is step by step and stable.
Firstly, surface layer level honeycombs with different orders filled in the upper box body are increased in sequence from last time to next time, and the energy absorption effect is increased gradually. Especially when high-speed collision happens, the energy absorption device can effectively ensure the continuity and stability of the energy absorption while improving the total energy absorption, and is very favorable for ensuring the safety of passengers in the vehicle. And secondly, the surface layer honeycomb structure can promote the folding deformation of the basic unit due to the addition of the restraint of the substructure on the basic unit, so that the automobile has a stable energy absorption level in the early stage of collision, and is favorable for the regulation and control of a passenger restraint system.
3. Effectively reduce peak force and reduce the injury of passengers
Firstly, inducing grooves and round defect holes are arranged on every other face of six side faces of the titanium alloy shell, the inducing grooves control deformation modes, and peak collision force can be reduced by the defect holes. Secondly, the peak collision force generated by the corrugated structure of the conical corrugated pipe embedded in the core body is smaller than that of a straight cylindrical pipe. And finally, the highest peak force at the engine can be greatly shared by the high-level energy absorption effect of the lower box body.
4. High bearing capacity and high multi-angle impact adaptability
In order to enhance the bearing capacity of the energy absorption box, the surface type lattice structure in the lower box body adopts surface-to-surface contact between the basic units, so that the energy absorption box has higher structural stability, the lower box body shell adopts a table body structure with a small upper part and a wide lower part, the bearing stability is also increased to a certain extent, and the multi-angle impact adaptability of the energy absorption box is enhanced. In addition, the inner corrugated pipe is made of fiber composite metal materials, so that the advantages of different materials can be effectively exerted, the mechanical property of the structure is enhanced, and the range of the invention capable of bearing impact load is further expanded due to the conical structure of the inner corrugated pipe.
5. The light weight level is high.
Firstly, the materials adopted by the patent comprise aluminum alloy, titanium alloy, carbon fiber and glass fiber, and the materials all have the characteristics of light weight and high strength. And secondly, the upper box body and the lower box body filled in the energy-absorbing core body are both of porous structures with light weight and high level. Finally, the conical corrugated pipe is embedded in the core body, so that the volume of the filling structure is further reduced.
Drawings
FIG. 1 is a schematic overall structural view of a crash box in accordance with a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the overall construction of the crash box in accordance with the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the overall construction of the outer shell of the energy absorber in accordance with the preferred embodiment of the present invention;
FIG. 4 is a schematic view of the overall construction of the porous core of the energy absorber in a preferred embodiment of the invention;
FIG. 5 is a schematic view showing the overall structure of the inner bellows in the preferred embodiment of the present invention;
FIG. 6 is a schematic illustration of the positional relationship of the upper and lower boxes of the cellular core of the energy absorber in a preferred embodiment of the present invention;
FIG. 7 is a schematic illustration of the positional relationship of the face-level honeycomb structure of the upper box of the porous core of the energy absorber and its basic units in a preferred embodiment of the invention;
FIG. 8 is a schematic representation of the basic elements of the first, second and third face level honeycomb structures of the upper shell of the energy absorber in accordance with the preferred embodiment of the present invention;
FIG. 9 is a schematic view of the structure of the lower box of the cellular core of the energy absorber and its basic units in a preferred embodiment of the invention.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
An energy absorption box applied to a passenger car, referring to fig. 1 to 2, comprises an energy absorption body 102, and an upper flange plate 101 and a lower flange plate 103 which are respectively fixed above and below the energy absorption body 102. Referring to fig. 3 to 5, the energy absorber 102 is provided with a shell 203, a porous core 201 and an inner bellows 202 in sequence from outside to inside; an abdication channel 2011 is arranged in the middle of the porous core body 201, and the inner corrugated pipe 202 is arranged in the abdication channel 2011; the cross section of the abdicating passage 2011 is sequentially increased from top to bottom, and the cross section of the inner corrugated pipe 202 is also sequentially increased from top to bottom. The pipe wall of the inner corrugated pipe 202 is sequentially provided with a carbon fiber layer 2021, an aluminum alloy layer 2022 and a glass fiber layer 2023 from outside to inside. The housing 203 is specifically a titanium alloy housing 203; six side surfaces are uniformly distributed on the side of the housing 203, and an induction long groove 2031 and a circular defect hole 2032 are arranged at every other side surface. The induction long groove 2031 is horizontally disposed above the side surface. The circular defective hole 2032 is provided in plurality from top to bottom in sequence. Firstly, the six side surfaces of the titanium alloy housing 203 are provided with an induction long groove 2031 and a circular defect hole 2032 every other surface, the induction long groove 2031 controls the deformation mode, and the defect hole can reduce the peak collision force. Secondly, the peak collision force generated by the corrugated structure of the conical corrugated pipe embedded in the core body is smaller than that of a straight cylindrical pipe. Finally, the highest peak force at the engine can be largely shared by the high level of energy absorption effect of the lower box body 302.
Referring to fig. 6, the porous core 201 is composed of an upper case 301 and a lower case 302; referring to fig. 7 to 8, the upper box 301 includes, from top to bottom, a plurality of layers of surface-level honeycomb structures with sequentially higher orders; the surface-level honeycomb structure located at the uppermost portion of the upper box 301 is specifically a first surface-level honeycomb structure 401, the first basic unit 501 of the first surface-level honeycomb structure 401 is specifically a first hexagon, the surface-level honeycomb structure located below the first surface-level honeycomb structure 401 is specifically a second surface-level honeycomb structure 402, and the second basic unit 502 of the second surface-level honeycomb structure 402 is formed by inwardly deriving six second hexagons 5021 from corner units of the first hexagon; the face-level honeycomb structure located below the second face-level honeycomb structure 402 is specifically a third face-level honeycomb structure 403, and the third basic cells 503 of the third face-level honeycomb structure 403 are formed by inward derivation of six third hexagons 5031 from corner cells of the second hexagons. Firstly, the surface layer level honeycombs of different orders filled in the upper box body 301 increase the derived surface inner substructures sequentially from last time to next time, and the energy absorption effect also increases gradually. Especially when high-speed collision happens, the energy absorption device can effectively ensure the continuity and stability of the energy absorption while improving the total energy absorption, and is very favorable for ensuring the safety of passengers in the vehicle. And secondly, the surface layer honeycomb structure can promote the folding deformation of the basic unit due to the addition of the restraint of the substructure on the basic unit, so that the automobile has a stable energy absorption level in the early stage of collision, and is favorable for the regulation and control of a passenger restraint system.
Referring to fig. 9, the lower case 302 is filled with a planar lattice structure 601. The fourth basic unit 602 of the planar crystal structure is composed of six hemispheres 603 facing away from each other; the radius of the hemispheroids 603 is three quarters of the distance from the plane to the center of the fourth basic unit 602 of the surface type crystal structure, the intersecting parts of the hemispheroids 603 are removed in the process of forming the fourth basic unit 602 of the surface type crystal structure, and the fourth basic unit 602 of the surface type crystal structure 601 is combined through surface-to-surface contact. The cross section of the lower box 302 increases from top to bottom. The lower case 302 filled surface type lattice structure of the present invention has a higher energy absorption level than the rod type lattice structure. In the process of compression collision, considerable kinetic energy can be absorbed through small plastic deformation, the burden borne by a passenger restraint system and the body of a passenger is reduced to a great extent, and the safety of the passenger is effectively ensured. In addition, compared with the conventional honeycomb, the novel honeycomb filled in the upper box body 301 has higher energy absorption potential and can dissipate more energy per unit mass.
In order to enhance the bearing capacity of the energy absorption box, the surface lattice structure 601 in the lower box body 302 adopts surface-to-surface contact between the basic units, so that the structural stability is high, the outer shell 203 of the lower box body 302 adopts a table body structure with a small upper part and a wide lower part, the bearing stability is increased to a certain extent, and the multi-angle impact adaptability of the energy absorption box is enhanced. In addition, the inner corrugated pipe 202 is made of fiber composite metal materials, so that the advantages of different materials can be effectively exerted, the mechanical property of the structure is enhanced, and the conical structure of the inner corrugated pipe 202 further expands the range of the invention capable of bearing impact load.
The materials adopted by the patent comprise aluminum alloy, titanium alloy, carbon fiber and glass fiber, and all have the characteristics of light weight and high strength. Second, the filled upper and lower boxes 302 of the energy-absorbing core are all porous structures with light weight and high level. Finally, the conical corrugated pipe is embedded in the core body, so that the volume of the filling structure is further reduced.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. The energy absorption box is characterized by comprising an energy absorption body, wherein the energy absorption body is sequentially provided with a shell, a porous core and an internal corrugated pipe from outside to inside; the middle part of the porous core body is provided with a yielding channel, and the internal corrugated pipe is arranged in the yielding channel; the porous core body consists of an upper box body and a lower box body; the upper box body sequentially comprises a plurality of layers of surface-level honeycomb structures with sequentially-increased orders from top to bottom; the surface-level honeycomb structure positioned at the uppermost part of the upper box body is specifically a first surface-level honeycomb structure, basic units of the first surface-level honeycomb structure are specifically first hexagons, the surface-level honeycomb structure positioned below the first surface-level honeycomb structure is specifically a second surface-level honeycomb structure, and the basic units of the second surface-level honeycomb structure are formed by inwards deriving six second hexagons from corner units of the first hexagons; the lower box body is filled with a surface type lattice structure.
2. The crash box of claim 1 wherein said planar crystalline structure has a base unit consisting of six hemispheres facing away from each other; the radius of the hemispheroids is three quarters of the distance from the plane to the center of the basic unit of the face-type crystal structure, and intersecting parts of the hemispheroids are removed in the process of forming the basic unit of the face-type crystal structure.
3. The crash box according to claim 1, wherein the face-level honeycomb structure located below the second face-level honeycomb structure is in particular a third face-level honeycomb structure, the basic unit of which is formed by the inward derivation of six third hexagons from the corner units of the second hexagons.
4. The crash box of claim 1, wherein the cross-section of the lower box body increases from top to bottom.
5. The crash box of claim 1, wherein the cross-section of the abdicating channel increases from top to bottom, and wherein the cross-section of the inner bellows also increases from top to bottom.
6. The crash box of claim 2, wherein the wall of the inner bellows comprises, in order from outside to inside, a carbon fiber layer, an aluminum alloy layer, and a glass fiber layer.
7. Energy absorption box according to claim 1, characterized in that the shell is in particular a titanium alloy shell; six side faces are uniformly distributed on the side of the shell, and an induction long groove and a circular defect hole are formed in each side face at intervals.
8. The crash box of claim 7, wherein said elongated induction channel is horizontally disposed and above said side surface.
9. The crash box of claim 8, wherein the plurality of circular defect holes are arranged in a sequence from top to bottom.
10. An energy-absorbing box according to any one of claims 1 to 9, wherein an upper flange and a lower flange are fixed above and below the energy-absorbing body, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621435.3A CN111660977A (en) | 2020-06-30 | 2020-06-30 | Energy absorption box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621435.3A CN111660977A (en) | 2020-06-30 | 2020-06-30 | Energy absorption box |
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| Publication Number | Publication Date |
|---|---|
| CN111660977A true CN111660977A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010621435.3A Pending CN111660977A (en) | 2020-06-30 | 2020-06-30 | Energy absorption box |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224163A (en) * | 2020-10-28 | 2021-01-15 | 吉林大学 | Bionic composite energy absorption structure with impact angle adaptability |
| CN112297458A (en) * | 2020-10-13 | 2021-02-02 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Automobile energy absorption box and secondary forming process and forming device thereof |
| CN112428949A (en) * | 2020-12-05 | 2021-03-02 | 吉林大学 | Recoverable car energy-absorbing box that warp based on vibration material disk |
| CN112677920A (en) * | 2020-12-16 | 2021-04-20 | 南京理工大学 | Anti-explosion passenger leg protection device for military vehicle |
| CN112896220A (en) * | 2021-03-22 | 2021-06-04 | 北京交通大学 | Segmented guide control type energy absorption pipe and energy absorption method thereof |
| CN113479157A (en) * | 2021-07-14 | 2021-10-08 | 广东乾行达汽车安全科技有限公司 | Anti-collision buffer device |
| CN114228651A (en) * | 2021-12-10 | 2022-03-25 | 重庆交通大学绿色航空技术研究院 | Light-weight automobile energy absorption box with lattice structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19730961A1 (en) * | 1997-07-18 | 1999-01-21 | Volkswagen Ag | Impact absorbing cushion for vehicle |
| CN109624900A (en) * | 2018-12-14 | 2019-04-16 | 华侨大学 | A kind of car crass energy-absorption box |
| CN110696759A (en) * | 2019-10-29 | 2020-01-17 | 华侨大学 | Gradient automobile energy absorption box |
| CN212766082U (en) * | 2020-06-30 | 2021-03-23 | 华侨大学 | Energy absorption box |
-
2020
- 2020-06-30 CN CN202010621435.3A patent/CN111660977A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19730961A1 (en) * | 1997-07-18 | 1999-01-21 | Volkswagen Ag | Impact absorbing cushion for vehicle |
| CN109624900A (en) * | 2018-12-14 | 2019-04-16 | 华侨大学 | A kind of car crass energy-absorption box |
| CN110696759A (en) * | 2019-10-29 | 2020-01-17 | 华侨大学 | Gradient automobile energy absorption box |
| CN212766082U (en) * | 2020-06-30 | 2021-03-23 | 华侨大学 | Energy absorption box |
Non-Patent Citations (1)
| Title |
|---|
| 张勇等: "不同冲击工况下蜂窝填充薄壁结构的耐撞性能", 上海交通大学学报, vol. 53, no. 1, 31 January 2019 (2019-01-31), pages 77 - 84 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297458A (en) * | 2020-10-13 | 2021-02-02 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Automobile energy absorption box and secondary forming process and forming device thereof |
| CN112224163A (en) * | 2020-10-28 | 2021-01-15 | 吉林大学 | Bionic composite energy absorption structure with impact angle adaptability |
| CN112428949A (en) * | 2020-12-05 | 2021-03-02 | 吉林大学 | Recoverable car energy-absorbing box that warp based on vibration material disk |
| CN112428949B (en) * | 2020-12-05 | 2022-05-13 | 吉林大学 | Recoverable car energy-absorbing box that warp based on vibration material disk |
| CN112677920A (en) * | 2020-12-16 | 2021-04-20 | 南京理工大学 | Anti-explosion passenger leg protection device for military vehicle |
| CN112896220A (en) * | 2021-03-22 | 2021-06-04 | 北京交通大学 | Segmented guide control type energy absorption pipe and energy absorption method thereof |
| CN112896220B (en) * | 2021-03-22 | 2022-04-22 | 北京交通大学 | Segmented guide control type energy absorption pipe and energy absorption method thereof |
| CN113479157A (en) * | 2021-07-14 | 2021-10-08 | 广东乾行达汽车安全科技有限公司 | Anti-collision buffer device |
| CN114228651A (en) * | 2021-12-10 | 2022-03-25 | 重庆交通大学绿色航空技术研究院 | Light-weight automobile energy absorption box with lattice structure |
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