CN110509877B - High-efficient crashproof car energy-absorbing box - Google Patents
High-efficient crashproof car energy-absorbing box Download PDFInfo
- Publication number
- CN110509877B CN110509877B CN201910926194.0A CN201910926194A CN110509877B CN 110509877 B CN110509877 B CN 110509877B CN 201910926194 A CN201910926194 A CN 201910926194A CN 110509877 B CN110509877 B CN 110509877B
- Authority
- CN
- China
- Prior art keywords
- regular
- shell
- porous structure
- structure core
- prism
- 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.)
- Active
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims abstract description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- 230000001066 destructive effect Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—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
Abstract
The invention provides an efficient anti-collision automobile energy absorption box, which comprises a shell, a porous structure core and a composite fiber pipe, wherein the shell is provided with a plurality of holes; the shell and the porous structure core are all hexahedral cylinders; the upper bottom surface and the lower bottom surface of the shell and the porous structure core are square, four edges of the shell and the porous structure core are symmetrically distributed along the center of the central shaft of the shell, and the edges are curved lines bending towards the direction of the central shaft; the porous structure core is arranged inside the shell; the porous structure core is provided with a plurality of abdication channels, the abdication channels are distributed along the diagonal line of the square porous structure core, and the composite fiber tube is inserted into the abdication channels to be fixed. By the adoption of the technical scheme, the peak destructive power can be effectively reduced.
Description
Technical Field
The invention relates to the field of automobile energy absorption, in particular to an efficient anti-collision automobile energy absorption box.
Background
Automobile safety is one of the most important links in automobile engineering research and development, and is an important research subject related to life and property safety of people. In recent years, with the rapid development of the infrastructure of China road and the breakthrough of the technology of the domestic automobile industry, the quantity of China automobile conservation is rapidly increasing. Meanwhile, the number of traffic safety accidents is increased, and huge threats and injuries are caused to lives and properties of people.
The automobile energy-absorbing box is an important energy-absorbing device in an automobile bumper system, is arranged between a cross beam and a frame longitudinal beam, and can convert external collision energy into internal deformation energy through irreversible plastic deformation when an automobile collides, so that peak destructive power is reduced, and injuries to passengers and pedestrians are reduced as much as possible. However, in the prior art, the energy absorption efficiency of the automobile energy absorption box is low, the bearing is unstable, and the peak force cannot be effectively reduced, so that the design of the automobile energy absorption box with excellent crashworthiness has very important practical significance.
Disclosure of Invention
The invention aims to provide an efficient anti-collision automobile energy absorption box, which can effectively reduce peak damage.
In order to solve the technical problems, the invention provides an efficient anti-collision automobile energy-absorbing box, which comprises a shell, a porous structure core and a composite fiber tube; the shell and the porous structure core are all hexahedral cylinders; the upper bottom surface and the lower bottom surface of the shell and the porous structure core are square, four edges of the shell and the porous structure core are symmetrically distributed along the center of the central shaft of the shell, and the edges are curved lines bending towards the direction of the central shaft; the porous structure core is arranged inside the shell; the porous structure core is provided with a plurality of abdication channels, the abdication channels are distributed along the diagonal line of the square porous structure core, and the composite fiber tube is inserted into the abdication channels to be fixed.
In a preferred embodiment, the porous structure core is formed by alternately arranging a honeycomb structure layer and a three-dimensional lattice layer from top to bottom; the cross section of the honeycomb structure layer is formed by mutually splicing a plurality of regular polygon basic units.
In a preferred embodiment, the regular polygon basic unit is specifically a regular hexagon formed by overlapping two regular triangles in opposite directions; and the splicing of the regular polygon basic units is completed by splicing the outer vertexes of the regular hexagons.
In a preferred embodiment, the four circular structures are connected in pairs by curves to form the side length of the regular triangle; the directions of the two regular triangles are oppositely overlapped, so that six circular structures in each two regular triangles are overlapped, and a regular hexagon structure is formed between the six overlapped circular structures.
In a preferred embodiment, each of the circular structures is connected to four circular structures by four curves.
In a preferred embodiment, the three-dimensional lattice layer comprises at least one prism array stack; the prism array is formed by arranging a plurality of prism unit arrays.
In a preferred embodiment, the prism unit is specifically obtained by cutting a triangular pyramid from three sides of a regular triangular prism; the vertexes of the triangular prisms are in the same direction, and one end of the regular triangular prism is reserved with a regular triangle bottom surface; three triangular pyramid grooves are formed on three side surfaces of the regular triangular prism, and the groove walls of the triangular pyramid grooves are three side edges of the regular triangular prism.
In a preferred embodiment, the prism units are spliced by overlapping each other by the side lengths of the regular triangles of the bottom surfaces of the regular triangular prisms, so as to form the prism array.
In a preferred embodiment, the surface of the housing is provided with defect holes distributed along a sinusoidal curve and distributed in peaks and valleys of the sinusoidal curve.
In a preferred embodiment, the composite fiber pipe is provided with a glass fiber layer, an aramid fiber layer and a carbon fiber layer from inside to outside in sequence; the glass fiber layer, the aramid fiber layer and the carbon fiber layer are concentrically and coaxially arranged.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the energy absorption box has excellent energy absorption, and the three-dimensional lattice structure can absorb a large amount of energy with smaller deformation amount through elastic deformation and plastic deformation to a densification stage, so that the energy absorption level of the energy absorption box is greatly improved. The honeycomb structure layer can not only enable the invention to have very stable energy absorption property, but also provide effective buffering and protect the safety of drivers and passengers through the early folding deformation and the later bending deformation. The honeycomb structure layers and the three-dimensional lattice structure are alternately arranged, energy is circularly absorbed, and the energy absorption persistence is improved.
2. The peak force is effectively reduced, and the personal safety is ensured. The arc structure on the surface of the pier-shaped square tube and the elliptical defect holes on the pier-shaped square tube can play a good role in inducing, and the spiral line of the internal Govet-shaped spiral honeycomb replaces the linear structure of the traditional honeycomb wall, so that the peak destructive power can be effectively reduced, and the personal safety is protected.
3. The three-dimensional lattice structure is formed by connecting triangular prism body core cells by adopting surface to surface, and has high bearing capacity, good stability and good contact strength. The cylindrical composite fiber tube adopts a sandwich structure, so that the advantages of fibers of different materials can be well integrated, the composite fiber tube has excellent mechanical properties, the average collision force is enhanced, and the load level of the energy absorption box is greatly improved. Five composite fiber pipes are distributed according to diagonal lines, so that the bearing stability of the energy absorption box is improved.
Drawings
FIG. 1 is a schematic view of a structure of a housing according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a porous structural core in accordance with a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of the regular polygon basic unit in the preferred embodiment of the present invention;
FIG. 4 is a conceptual diagram of the structure of a honeycomb layer in a preferred embodiment of the invention;
FIG. 5 is a schematic view showing the structure of a honeycomb layer according to a preferred embodiment of the present invention; FIG. 6 is a schematic view of a circular structure in a preferred embodiment of the present invention;
FIG. 7 is a schematic diagram showing the positional relationship between circular knots and curves in a preferred embodiment of the present invention;
FIG. 8 is a schematic view of a prism unit according to a preferred embodiment of the present invention;
FIG. 9 is a schematic perspective view of a prism array according to a preferred embodiment of the present invention;
FIG. 10 is a top view of a structure of a prism array in accordance with a preferred embodiment of the present invention;
FIG. 11 is a schematic view of a composite fiber pipe in accordance with a preferred embodiment of the present invention;
fig. 12 is an enlarged partial schematic view of the structure of the composite fiber pipe in the preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
An efficient anti-collision automobile energy absorption box, referring to figures 1 to 12, comprises a shell 1, a porous structure core 2 and a composite fiber tube 3; the shell 1 and the porous structure core 2 are all six-sided cylinders; the upper bottom surface and the lower bottom surface of the shell 1 and the porous structure core 2 are square, four edges of the shell 1 and the porous structure core 2 are symmetrically distributed along the center of the central shaft of the shell 1, and the edges are curved lines bending towards the direction of the central shaft; the arc structure of the pier-shaped square tube surface and the elliptical defect holes 11 on the pier-shaped square tube surface can play a good role in induction. The porous structure core 2 is arranged inside the shell 1; the porous structure core 2 is provided with a plurality of yield channels 23, the yield channels 23 are distributed along the diagonal line of the square porous structure core 2, and the composite fiber tube 3 is inserted into the yield channels 23 to be fixed. The porous structure core 2 is formed by sequentially and alternately arranging a honeycomb structure layer 21 and a three-dimensional lattice layer 22 which are in a spiral shape of a Golgi shape from top to bottom; the cross section of the honeycomb-structure layer 21 is specifically formed by mutually splicing a plurality of regular polygon basic cells 211.
Specifically, the regular polygon basic unit 211 is specifically a regular hexagon formed by overlapping two regular triangles in opposite directions; the stitching between the regular polygon base units 211 is accomplished by stitching the outer vertices of the regular hexagon. Further, the regular hexagonal side length is replaced by the arrangement of the circular structures 2111, and referring to fig. 4 to 5 in detail, the four circular structures 2111 are connected by a curve 2112 to form the regular triangular side length; the two regular triangles are overlapped in opposite directions, so that six circular structures 2111 in each two regular triangles are overlapped, and a regular hexagon structure is formed between the overlapped six circular structures 2111. As shown in fig. 5 to 6, each of the circular structures 2111 is connected to four circular structures 2111 by four curves. Specifically, referring to fig. 7, two adjacent circular structures are respectively placed in one large circle 2113, the radius of the circular structures is half of the radius of the large circle 2113, the two large circles 2113 are tangentially arranged, and the two circular structures are respectively inscribed on the left side and the right side of the large circle 2113; the starting point and the end point of one great circle 2113 are respectively the tangent points of the two circular structures and the two great circles 2113, and the two tangent points are connected along the circumferential direction of the two great circles 2113 to form the curve 2112.
Specifically, the three-dimensional lattice layer 22 includes at least one prism array stack; the prism array is formed by arranging a plurality of prism units 221 in an array. The prism unit 221 is specifically obtained by cutting off a triangular pyramid from three sides of a regular triangular prism; the vertexes of the triangular prisms are in the same direction, and one end of the regular triangular prism is reserved with a regular triangle bottom surface; three triangular pyramid grooves are formed on three side surfaces of the regular triangular prism, and the groove walls of the triangular pyramid grooves are three side edges of the regular triangular prism. The prism units 221 are spliced by overlapping each other by the side lengths of the regular triangles of the bottom surfaces of the regular triangular prisms, so that the prism array is formed. The three-dimensional lattice structure can absorb a large amount of energy with smaller deformation amount by elastic deformation and plastic deformation to a densification stage, and the energy absorption level of the energy absorption box is greatly improved. The honeycomb structure layer 21 not only enables the present invention to have very stable energy absorption property but also provides effective buffering by the early folding deformation and the later bending deformation, protecting the safety of the driver and the passengers. The Golgi-shaped spiral honeycomb structure layers 21 and the three-dimensional lattice structure are alternately arranged, energy is circularly absorbed, the energy absorption persistence is improved, the internal Golgi-shaped spiral honeycomb replaces the linear structure of the traditional honeycomb wall by a spiral line, the peak destructive power can be effectively reduced, and the personal safety is protected. The three-dimensional lattice structure adopts surface-to-surface connection by the triangular prism body core unit cells, and has good contact strength and structural stability. The cylindrical composite fiber tube 3 adopts a sandwich structure, so that the advantages of fibers of different materials can be well integrated, the composite fiber tube has excellent mechanical properties, the average collision force is enhanced, and the load level of the energy absorption box is greatly improved. The five composite fiber pipes 3 are distributed according to diagonal lines, so that the bearing stability of the energy absorption box is improved.
Specifically, the surface of the shell is provided with defect holes 11, and the defect holes 11 are distributed along a sinusoidal curve 12 and distributed on the peaks and troughs of the sinusoidal curve 12. The transverse axis of the sinusoidal curve 12 is parallel to the central axis of the housing 1. The composite fiber pipe 3 is provided with a glass fiber layer 31, an aramid fiber layer 32 and a carbon fiber layer 33 from inside to outside in sequence; the glass fiber layer 31, the aramid fiber layer 32 and the carbon fiber layer 33 are concentrically and coaxially arranged
The foregoing 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 will be able to make insubstantial modifications of the present invention within the scope of the present invention disclosed herein by this concept, which falls within the actions of invading the protection scope of the present invention.
Claims (4)
1. An efficient anti-collision automobile energy absorption box is characterized by comprising a shell, a porous structure core and a composite fiber pipe; the shell and the porous structure core are all hexahedral cylinders; the upper bottom surface and the lower bottom surface of the shell and the porous structure core are square, four edges of the shell and the porous structure core are symmetrically distributed along the center of the central shaft of the shell, and the edges are curved lines bending towards the direction of the central shaft; the porous structure core is arranged inside the shell; the porous structure core is provided with a plurality of abdication channels, the abdication channels are distributed along the diagonal line of the square porous structure core, and the composite fiber tube is inserted into the abdication channels to be fixed; the porous structure core is formed by alternately arranging a honeycomb structure layer and a three-dimensional lattice layer from top to bottom in sequence; the cross section of the honeycomb structure layer is formed by mutually splicing a plurality of regular polygon basic units; the regular polygon basic unit is specifically a regular hexagon formed by overlapping two regular triangles in opposite directions; the splicing between the regular polygon basic units is completed by splicing the outer vertexes of the regular hexagons; the four circular structures are connected in pairs through curves to form the side length of the regular triangle; the directions of the two regular triangles are oppositely overlapped, so that six circular structures in each two regular triangles are overlapped, and a regular hexagon structure is formed between the overlapped six circular structures;
the three-dimensional lattice layer comprises at least one layer of prism array lamination; the prism array is formed by arranging a plurality of prism unit arrays;
the prism units are specifically obtained by cutting off a triangular pyramid from three side surfaces of a regular triangular prism; the vertexes of the triangular prisms are in the same direction, and one end of the regular triangular prism is reserved with a regular triangle bottom surface; three triangular pyramid grooves are formed on three side surfaces of the regular triangular prism, and the groove walls of the triangular pyramid grooves are three side edges of the regular triangular prism;
and the prism units are spliced by overlapping each other by the side lengths of the regular triangles on the bottom surfaces of the regular triangular prisms, so that the prism array is formed.
2. The high-efficiency crash-proof automotive crash box as recited in claim 1 wherein each of said circular structures is connected to four circular structures by four curves.
3. The high-efficiency crash-proof automotive crash box as recited in claim 1 wherein said shell surface is provided with defect holes distributed along a sinusoidal curve and distributed in peaks and troughs of said sinusoidal curve.
4. The efficient anti-collision automobile energy absorption box according to claim 1, wherein the composite fiber pipe is sequentially provided with a glass fiber layer, an aramid fiber layer and a carbon fiber layer from inside to outside; the glass fiber layer, the aramid fiber layer and the carbon fiber layer are concentrically and coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910926194.0A CN110509877B (en) | 2019-09-27 | 2019-09-27 | High-efficient crashproof car energy-absorbing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910926194.0A CN110509877B (en) | 2019-09-27 | 2019-09-27 | High-efficient crashproof car energy-absorbing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110509877A CN110509877A (en) | 2019-11-29 |
| CN110509877B true CN110509877B (en) | 2024-02-27 |
Family
ID=68633904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910926194.0A Active CN110509877B (en) | 2019-09-27 | 2019-09-27 | High-efficient crashproof car energy-absorbing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110509877B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022538B (en) * | 2019-12-06 | 2024-03-12 | 华侨大学 | Multifunctional gradient energy absorption box |
| CN114880791B (en) * | 2022-04-13 | 2023-11-03 | 汕头大学 | Chiral multicellular structure unit, assembly and intelligent construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208630537U (en) * | 2018-07-18 | 2019-03-22 | 衡阳市江源机械有限责任公司 | A kind of automobile buffer beam |
| CN109532730A (en) * | 2018-11-28 | 2019-03-29 | 华侨大学 | A kind of new automobile energy-absorbing box device of the special filling in inside |
| CN109591743A (en) * | 2018-11-22 | 2019-04-09 | 华侨大学 | A kind of car crass energy-absorption box of efficient stable energy-absorbing |
| CN109624900A (en) * | 2018-12-14 | 2019-04-16 | 华侨大学 | A kind of car crass energy-absorption box |
| CN211417183U (en) * | 2019-09-27 | 2020-09-04 | 华侨大学 | High-efficient crashproof car energy-absorbing box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10704638B2 (en) * | 2016-04-26 | 2020-07-07 | Ford Global Technologies, Llc | Cellular structures with twelve-cornered cells |
-
2019
- 2019-09-27 CN CN201910926194.0A patent/CN110509877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208630537U (en) * | 2018-07-18 | 2019-03-22 | 衡阳市江源机械有限责任公司 | A kind of automobile buffer beam |
| CN109591743A (en) * | 2018-11-22 | 2019-04-09 | 华侨大学 | A kind of car crass energy-absorption box of efficient stable energy-absorbing |
| CN109532730A (en) * | 2018-11-28 | 2019-03-29 | 华侨大学 | A kind of new automobile energy-absorbing box device of the special filling in inside |
| CN109624900A (en) * | 2018-12-14 | 2019-04-16 | 华侨大学 | A kind of car crass energy-absorption box |
| CN211417183U (en) * | 2019-09-27 | 2020-09-04 | 华侨大学 | High-efficient crashproof car energy-absorbing box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110509877A (en) | 2019-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110509877B (en) | High-efficient crashproof car energy-absorbing box | |
| CN108082102B (en) | Negative poisson ratio structural component based on concave hexagonal unit | |
| CN111022538B (en) | Multifunctional gradient energy absorption box | |
| CN109532730B (en) | Automobile energy absorbing box device filled inside | |
| CN111219436B (en) | Paper folding type thin-walled tube | |
| CN110696760B (en) | Method and structure for realizing energy absorption structure of paper folding rib plate | |
| CN109624900B (en) | Automobile collision energy absorption box | |
| CN110391373B (en) | Energy-absorbing protection battery box | |
| CN110641403A (en) | Hierarchical paper folding type automobile collision energy absorption structure | |
| CN206386431U (en) | A kind of staggered porous energy absorber | |
| CN211417183U (en) | High-efficient crashproof car energy-absorbing box | |
| CN110576644B (en) | Sandwich composite board | |
| CN114060445B (en) | Three-dimensional curved wall mixed phase regular quadrilateral chiral honeycomb | |
| CN111391417B (en) | Honeycomb structure and honeycomb energy absorption piece | |
| CN115275478B (en) | Energy-absorbing battery box | |
| CN112918022A (en) | Negative Poisson ratio-honeycomb type composite energy absorption structure with planar semi-circumferential forward interface | |
| CN218477486U (en) | Multistage ripple energy-absorbing box | |
| CN211417176U (en) | Gradient automobile energy absorption box | |
| CN113757281B (en) | Energy-absorbing unit body based on multistable state and energy-absorbing material | |
| CN210851544U (en) | Sandwich composite board | |
| CN110758298B (en) | Method and structure for realizing triple energy absorption structure of folded paper | |
| CN110696759A (en) | Gradient automobile energy absorption box | |
| CN210851579U (en) | Sandwich structure applied to automobile collision energy absorption box | |
| CN114135626A (en) | Three-dimensional curved-wall same-phase regular polygon chiral honeycomb | |
| CN110576645B (en) | Porous structure composite board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |