CN110015255A - A kind of energy-absorption box and bumper of star-like Cellular structure - Google Patents
A kind of energy-absorption box and bumper of star-like Cellular structure Download PDFInfo
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- CN110015255A CN110015255A CN201910348306.9A CN201910348306A CN110015255A CN 110015255 A CN110015255 A CN 110015255A CN 201910348306 A CN201910348306 A CN 201910348306A CN 110015255 A CN110015255 A CN 110015255A
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- star
- cell element
- energy
- absorption box
- connector
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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
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
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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
- 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
- B60R19/24—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)
- Vibration Dampers (AREA)
Abstract
The present invention provides a kind of energy-absorption boxes of star-like Cellular structure, it is characterized in that, it include: rigid plate and star-like cell element body, star-like cell element body includes multiple star-like cell element units, multiple first connectors and multiple second connectors, star-like cell element unit is vertical with rigid plate, including four star-like subelements, four star-like subelements are sequentially connected with encirclement and form square structure, star-like subelement includes a quadrangle type star polygon work and four connectors, two adjacent connectors are orthogonal, it is linked together between the star-like cell element unit of adjacent two by elliptical tube, on the in-plane parallel with rigid plate, it is linked together between the star-like cell element unit of adjacent two by ellipsoid.The present invention also provides a kind of bumpers of energy-absorption box with above-mentioned star-like Cellular structure.
Description
Technical field
The invention belongs to bumper fields, and in particular to a kind of energy-absorption box and car insurance of star-like Cellular structure
Thick stick.
Background technique
With the development and the improvement of people's living standards of society, automobile has become the necessity of many families.In automobile
In component, the effect of bumper seems especially prominent.
The bumper of automobile is the safety device for absorbing and slowing down foreign impacts power, protect vehicle body front and rear part.It is touching
When hitting, bumper can protect vehicle body, and vehicle body is avoided directly to be collided.For low speed collision, it can pass through dispersing impact forces
It plays a protective role；Shock for fast speed, energy-absorbing effect is limited, and impact force is directly passed to automobile by bumper,
Also there is limitation to the protective effect of automobile.
The front shock energy absorber system of automobile is made of collision prevention girders, energy-absorption box and front longitudinal beam, wherein collision prevention girders
Main function is Transmit evenly collision energy and protects the main parts sizes such as engine, and energy-absorption box is located at front longitudinal beam and collision prevention girders
Between, opposite front longitudinal beam intensity is lower, will deform first in collision process, and play main function in middle low speed collision.
Traditional energy-absorption box is thin-wall construction, generallys use double-head arrow type Cellular structure as shown in Figure 9, because structure is three
Angular shape, so the structure stress is stablized, but pointed part is easy to produce stress concentration phenomenon, while again because of its three-legged structure class
Type, can not uniform force, internal flexibility is poor.
Here selection double-head arrow type Cellular structure carries out parameter citing, and the test parameter of double-head arrow type Cellular structure model is such as
Shown in chart 1,
1 data result table of table
However, the energy-absorption box of above-mentioned tradition thin-walled double-head arrow type Cellular structure is laid particular stress on there are quality and absorption energy is lesser
Problem.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of energy-absorption box of star-like Cellular structure
And bumper.
The present invention provides a kind of energy-absorption boxes of star-like Cellular structure, have the feature that, comprising: two are arranged in parallel
Rigid plate；And star-like cell element body, it is arranged between two rigid plates, is negative poisson's ratio structure, including multiple star-like cell elements
Unit, multiple first connectors and multiple second connectors, multiple star-like cell element units are arranged by latticed form and are successively connected
It connects, wherein star-like cell element unit is vertical with rigid plate, including four star-like subelements, and four star-like subelements are sequentially connected with packet
It encloses to form square structure, star-like subelement includes positive quadrangle type star polygon work and four connectors, and four connectors are respectively from positive quadrangle
Extend outwardly on the angular bisector of the four corners junction of type star polygon work, and connector and positive quadrangle type star polygon work are in same flat
In face, two adjacent connectors are orthogonal, and multiple star-like cell element units are pressed on the in-plane parallel with rigid plate
The matrix form of row, column is arranged and is successively connected, and is successively connected on the direction perpendicular with rigid plate, into
And rectangular-shape structure is formed, the first connector is elliptical tube, and the second connector is ellipsoid, in the side perpendicular with rigid plate
Upwards, it is linked together between adjacent two star-like cell element units by elliptical tube, the extending direction and rigid plate of elliptical tube
In parallel, it on the in-plane parallel with rigid plate, is connected between the star-like cell element unit of adjacent two by ellipsoid
Together, ellipsoid includes four identical arcuation bodies, and arcuation body cuts away four corners by 1/2 oval pipe and formed, four arcuations
Body once connects encirclement and forms enclosed construction.
In a kind of energy-absorption box of star-like Cellular structure provided by the invention, it can also have the following features: wherein, just
Four exterior angles of quadrangle type star polygon work are fillet.
In a kind of energy-absorption box of star-like Cellular structure provided by the invention, it can also have the following features: wherein, just
Four interior angles of quadrangle type star polygon work are smooth curved surface.
It in a kind of energy-absorption box of star-like Cellular structure provided by the invention, can also have the following features: wherein, even
The one end of fitting connecting with positive quadrangle type star polygon work is tip-angled shape, and connector connects with the first connector and the second connector respectively
The end connect is arc-shaped smooth surface.
In a kind of energy-absorption box of star-like Cellular structure provided by the invention, it can also have the following features: wherein, star
The front view of type cell element body is consistent with side view diagram shape, and top view is square grid, when by external pressure, star-like cell element
Body generates the effect to contract, when by external pull, generates the property of expansion.
The present invention provides a kind of bumpers, have the feature that, comprising: two frame cross disposed in parallel
And longitudinal beam, it is mounted on the energy-absorption box of the star-like Cellular structure between frame cross and longitudinal beam, wherein star-like cell element knot
The energy-absorption box of structure is the energy-absorption box of an any of the above-described star-like Cellular structure.
The action and effect of invention
The energy-absorption box of star-like Cellular structure involved according to the present invention, because energy-absorption box includes multiple star-like cell element lists
First, multiple first connectors and multiple second connectors, multiple star-like cell element units are arranged and are sequentially connected by latticed form,
Star-like cell element unit is vertical with rigid plate, including four star-like subelements, and four star-like subelements, which are sequentially connected with, surrounds formation side
Shape structure, star-like subelement include a quadrangle type star polygon work and four connectors, so the energy-absorption box, that is, light-weight by elastic big,
And then it applies on bumper with significant advantage.
In addition, because four connectors of star-like subelement are respectively from the angle of the four corners junction of positive quadrangle type star polygon work
Extend outwardly on bisector, and connector and positive quadrangle type star polygon work are in same plane, two adjacent connectors are mutual
Vertically, so the vertical structure of star-like subelement has structural stability.
In addition, because star-like cell element unit on the in-plane parallel with rigid plate, is arranged by the matrix form of row, column
It arranges and successively connects, and successively connected on the direction perpendicular with rigid plate, and then form rectangular-shape knot
Structure, the rectangular-shape structure that such arrangement mode is formed make the uniform force of model entirety, it is possible to the greatest extent
Buffer function power.
In addition, the second connector is ellipsoid, in the direction perpendicular with rigid plate because the first connector is elliptical tube
On, it is linked together between the star-like cell element unit of adjacent two by elliptical tube, the extending direction and rigid plate of elliptical tube are flat
Row, since applied external force mostlys come from the direction of the long axis perpendicular to elliptical tube, the long axis position of elliptical tube herein is made
For main forced position, so the deformation mechanical characteristic of elliptical tube can be given full play to, it can be under conditions of whole slowly deformation
Absorb more energy.
In addition, because passing through between the star-like cell element unit of adjacent two on the in-plane parallel with rigid plate
Ellipsoid links together, and ellipsoid includes four identical arcuation bodies, and arcuation body cuts away four corners shape by 1/2 oval pipe
At four arcuation bodies once connect encirclement and form enclosed construction, and what it is due to the undertaking of this place is mainly distortion power, ellipse herein
Body structure is as main forced position, it is possible to the characteristic of ellipsoidal stability under loading is given full play to, it can be to greatest extent
So that ellipsoidal structure is maintained at stable state.
In addition, because negative poisson's ratio structure can generate radial contraction when the object of negative poisson's ratio structure is under pressure
Effect, when under tension, negative poisson's ratio structure can generate the property of longitudinal dilatation, so, star-like Cellular structure of the invention
Energy-absorption box have the effect of that other components of radial protection will not be extruded in structure, longitudinal effect for absorbing more energy.
Related bumper according to the present invention, because of two frame cross disposed in parallel and longitudinal beam, peace
The energy-absorption box of star-like Cellular structure between crossbeam and longitudinal beam, so bumper can pass through frame cross and vehicle frame
The external active force of stringer mean allocation, and then energy-absorption box can uniformly absorb external active force, and then improve bumper
Energy-absorbing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the bumper in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the energy-absorption box of the star-like Cellular structure in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the star-like cell element unit in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the star-like subelement in the embodiment of the present invention；
Fig. 5 is the formation schematic diagram of the star-like part in quadrangle in the embodiment of the present invention；
Fig. 6 is the formation schematic diagram of the connector in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the first connector in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the second connector in the embodiment of the present invention；And
Fig. 9 is the structural schematic diagram of the double-head arrow type cell element in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed the energy-absorption box and bumper of a kind of star-like Cellular structure of the invention.
Fig. 1 is the structural schematic diagram of the bumper in the embodiment of the present invention.
As shown in Figure 1, bumper 100 in the present embodiment includes frame cross 11, longitudinal beam 12 and star-like
The energy-absorption box 13 of Cellular structure.
Wherein, frame cross 11 and longitudinal beam 12 are arranged in parallel relatively, and the energy-absorption box 13 of star-like Cellular structure is mounted on
Between frame cross 11 and longitudinal beam 12, and it is in contact and connect with frame cross 11 and longitudinal beam 12 respectively.
Fig. 2 is the structural schematic diagram of the energy-absorption box of the star-like Cellular structure in the embodiment of the present invention.
As shown in Fig. 2, the energy-absorption box 13 of the star-like Cellular structure in the present embodiment includes that the first rigid plate 131, second is rigid
Property plate 132 and star-like cell element body 133.
First rigid plate 131 and the second rigid plate 132 are arranged in parallel relatively, and the star-like setting of cell element body 133 is in the first rigidity
Between plate 131 and the second rigid plate 132, and it is in contact and connect with the first rigid plate 131 and the second rigid plate 132 respectively.
Star-like cell element body 133 includes multiple star-like cell element units 1331, multiple first connectors 1332 and multiple second
Connector 1333, wherein star-like cell element unit 1331 is vertical with the first rigid plate 131, and arranges by latticed form and successively connect
It connects, star-like cell element body 133 includes at least one star-like cell element unit 1331.In the present embodiment, star-like cell element unit 1331
Number is 54.
Fig. 3 is the structural schematic diagram of the star-like cell element unit in the embodiment of the present invention.
As shown in figure 3, star-like cell element unit 1331 includes four star-like subelements 13311, four star-like subelements 13311
It is sequentially connected with encirclement and forms square structure.
Fig. 4 is the star-like sub-unit structure schematic diagram in the embodiment of the present invention.
As shown in figure 4, star-like subelement 13311 includes a quadrangle type star polygon work 133111 and four connectors 133112.
Fig. 5 is the formation schematic diagram of the star-like part in quadrangle in the embodiment of the present invention.
As shown in figure 5, quadrangle type star polygon work 133111 is using two closed quadrangle star graphic A and B as contour line, with four
The vertical direction for the plane that angle star graphic A and B are formed is stretched as draw direction, and then forms quadrangle type star polygon work
133111。
Wherein, it is fillet that four of quadrangle star graphic A, which are the interior angle of acute angle, and four of quadrangle star graphic B are acute angle
Interior angle be attached by U-shaped line.
Four connectors 133112 respectively from the angular bisector of the four corners junction of quadrangle type star polygon work 133111 to
Outer extension, and connector 133112 and quadrangle type star polygon work 133111 are in same plane, and two adjacent connectors are mutual
Vertically.
Fig. 6 is the formation schematic diagram of the connector in the embodiment of the present invention.
As shown in fig. 6, the vertical direction of connector 133112 using the plane of contour line C is stretched as draw direction,
And then it is formed.
Wherein, two endpoints on one end of the first bar portion of parallel and equal setting and the second bar portion are passed through into circular arc line
It is attached, two on the other end endpoint is attached by V-shaped line, forms conplane closed figure contour line C.
Wherein, the curved surface phase of the arc surface of connector 133112 and the first connector 1332 or the second connector 1333
Match, connector V-arrangement end and the corner junction of quadrangle type star polygon work 133111 match.
Two of adjacent connection star-like subelements 13311 pass through connector adjacent to each other in star-like cell element unit 1331
133112 link together, and connection type is vertical connection.
Wherein, perpendicular joints are the seamed edge of the connection that is in contact of connector 133112, and it is adjacent vertically to connect latter two
The arc surface of the connector 133112 of connection can form smooth curved surface.
Multiple star-like cell element units 1331 are on the in-plane parallel with the first rigid plate 131, by the matrix of row, column
Form is arranged and is successively connected, and is successively connected on the direction perpendicular with the first rigid plate 131, and then shape
Structure in cuboid shape.
Fig. 7 is the structural schematic diagram of the first connector in the embodiment of the present invention.
As shown in fig. 7, the first connector 1332 is elliptical tube, it is adjacent on the direction perpendicular with the first rigid plate 131
Two star-like cell element units 1331 between linked together by elliptical tube, the arc surface phase of elliptical tube and connector 133112
It matches and is connected.The extending direction of elliptical tube is parallel with the first rigid plate 131.
Fig. 8 is the structural schematic diagram of the second connector in the embodiment of the present invention.
As shown in figure 8, the second connector 1333 is ellipsoid, including four arcuation bodies 13331, this four arcuation bodies
13331, which are sequentially connected with encirclement, forms ellipsoid, on the in-plane parallel with the first rigid plate 131, adjacent star-like born of the same parents
It is linked together between first unit 1331 by ellipsoid, the smooth surface phase that ellipsoid is formed with two connectors 133112
Match and is connected.
Wherein, arcuation body 13331 is cut by the long axis of elliptical tube, formed the first equal tile of two shapes and
Second tile, there is four parallel straight lines on the first tile, and respectively first straight line, second straight line, third straight line and the 4th is straight
The midpoint of first straight line is connected to form the 5th straight line by line with the midpoint of the 4th straight line, and the 5th straight line parallel is in elliptical tube
Long axis, first straight line, second straight line, third straight line and the 4th the first plane of rectilinear(-al), the vertical plane of first plane
The intersecting lens of referred to as the second plane, the first plane and the second plane is first straight line, and the midpoint by first straight line is flat second
The 6th straight line is done on face perpendicular to the 5th straight line, makees two rays in the second plane by intersection point of the midpoint of first straight line, it should
The angle of ray and the 6th straight line is 45 °, is cut in perpendicular to the first plane using two rays as cutting line, obtains arc
Shape body 13331.
At identical conditions, the energy-absorption box to the star-like Cellular structure in the present embodiment and thin-walled in the prior art are double
The following parameter of the energy-absorption box of arrowhead-shaped Cellular structure is tested, as indicated in the chart 2,
2 data result table of table
By experimental verification, the energy-absorption box of more star-like Cellular structure and thin-walled double-head arrow type cell element knot in the prior art
The quality and energy-absorbing value of the energy-absorption box of structure, are concluded that
(1) star-like Cellular structure has lighter quality, and the absorption energy effect of star-like Cellular structure is more under the same terms
It is good.
(2) quality of star-like Cellular structure is lighter, can save more materials, reduces movement inertia, saves energy.
The action and effect of embodiment
The energy-absorption box of star-like Cellular structure involved according to the present invention, because energy-absorption box includes multiple star-like cell element lists
First, multiple first connectors and multiple second connectors, multiple star-like cell element units are arranged and are sequentially connected by latticed form,
Star-like cell element unit is vertical with rigid plate, including four star-like subelements, and four star-like subelements, which are sequentially connected with, surrounds formation side
Shape structure, star-like subelement include a quadrangle type star polygon work and four connectors, so the energy-absorption box, that is, light-weight by elastic big,
And then it applies on bumper with significant advantage.
In addition, because four connectors of star-like subelement are respectively from the angle of the four corners junction of positive quadrangle type star polygon work
Extend outwardly on bisector, and connector and positive quadrangle type star polygon work are in same plane, two adjacent connectors are mutual
Vertically, so the vertical structure of star-like subelement has structural stability.
In addition, because star-like cell element unit on the in-plane parallel with rigid plate, is arranged by the matrix form of row, column
It arranges and successively connects, and successively connected on the direction perpendicular with rigid plate, and then form rectangular-shape knot
Structure, the rectangular-shape structure that such arrangement mode is formed make the uniform force of model entirety, it is possible to the greatest extent
Buffer function power.
In addition, the second connector is ellipsoid, in the direction perpendicular with rigid plate because the first connector is elliptical tube
On, it is linked together between the star-like cell element unit of adjacent two by elliptical tube, the extending direction and rigid plate of elliptical tube are flat
Row, since applied external force mostlys come from the direction of the long axis perpendicular to elliptical tube, the long axis position of elliptical tube herein is made
For main forced position, so the deformation mechanical characteristic of elliptical tube can be given full play to, it can be under conditions of whole slowly deformation
Absorb more energy.
In addition, because passing through between the star-like cell element unit of adjacent two on the in-plane parallel with rigid plate
Ellipsoid links together, and ellipsoid includes four identical arcuation bodies, and arcuation body cuts away four corners shape by 1/2 oval pipe
At four arcuation bodies once connect encirclement and form enclosed construction, and what it is due to the undertaking of this place is mainly distortion power, ellipse herein
Body structure is as main forced position, it is possible to the characteristic of ellipsoidal stability under loading is given full play to, it can be to greatest extent
So that ellipsoidal structure is maintained at stable state.
In addition, because negative poisson's ratio structure can generate radial contraction when the object of negative poisson's ratio structure is under pressure
Effect, when under tension, negative poisson's ratio structure can generate the property of longitudinal dilatation, so, star-like Cellular structure of the invention
Energy-absorption box have the effect of that other components of radial protection will not be extruded in structure, longitudinal effect for absorbing more energy.
A kind of bumper involved according to the present invention, because two frame cross disposed in parallel and vehicle frame are vertical
Beam is mounted on the energy-absorption box of the star-like Cellular structure between crossbeam and longitudinal beam, so bumper can pass through frame cross
The external active force with longitudinal beam mean allocation, and then energy-absorption box can uniformly absorb external active force, and then improve
The energy-absorbing effect of bumper.
Further, because the exterior angle that four of quadrangle type star polygon work are acute angle is fillet, so that quadrangle type star polygon work
The phenomenon that being more uniformly stressed, preventing stress from concentrating.
It further, can because four of quadrangle type star polygon work are attached for the interior angle of acute angle by U-shaped curve
It is flexible to play the role of increasing.
Further, because the one end of connector connecting with quadrangle type star polygon work is tip-angled shape, connector can be with
Card slot is formed with quadrangle type star polygon work, guarantees the stabilization of fixed form；Because connector connects with the first connector and second respectively
The end of junctor connection is arc-shaped smooth surface, so connector can be completely tight with the first connector and the second connector
Close connection guarantees the stabilization of fixed form.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
For example, star-like cell element unit is formed in a manner of scanning stretching, but in practical applications, star in above-described embodiment
Type cell element unit can also be formed by way of 3D printing.
Claims (5)
1. a kind of energy-absorption box of star-like Cellular structure characterized by comprising
Two rigid plates disposed in parallel；And
Star-like cell element body, be arranged between two rigid plates, be negative poisson's ratio structure, including multiple star-like cell element units,
Multiple first connectors and multiple second connectors, multiple star-like cell element units are arranged by latticed form and are successively connected
It connects,
Wherein, the star-like cell element unit is vertical with the rigid plate, including four star-like subelements, and four star-like sons are single
Member is sequentially connected with encirclement and forms square structure,
The star-like subelement includes a quadrangle type star polygon work and four connectors,
Four connectors extend outwardly from the angular bisector of the four corners junction of the quadrangle type star polygon work respectively, and
And the connector and the quadrangle type star polygon work are in same plane, two adjacent connectors are orthogonal,
Multiple star-like cell element units are arranged on the in-plane parallel with the rigid plate by the matrix form of row, column
It arranges and successively connects, and successively connected on the direction perpendicular with the rigid plate, and then form cuboid
Shape structure,
First connector is elliptical tube, and second connector is ellipsoid,
On the direction perpendicular with the rigid plate, pass through the elliptical tube between the star-like cell element unit of adjacent two
It linking together, the extending direction of the elliptical tube is parallel with the rigid plate,
On the in-plane parallel with the rigid plate, by described ellipse between the star-like cell element unit of adjacent two
Circle links together,
The ellipsoid includes four identical arcuation bodies, and the arcuation body cuts away four corners by 1/2 oval pipe and formed, and four
A arcuation body is sequentially connected encirclement and forms enclosed construction.
2. the energy-absorption box of star-like Cellular structure according to claim 1, it is characterised in that:
Wherein, the four corners of the quadrangle type star polygon work are fillet.
3. the energy-absorption box of star-like Cellular structure according to claim 1, it is characterised in that:
Wherein, the one end of the connector connecting with institute quadrangle type star polygon work is tip-angled shape,
The end that the connector is connect with first connector and second connector respectively is that arc-shaped is smoothly bent
Face.
4. the energy-absorption box of star-like Cellular structure according to claim 1, it is characterised in that:
Wherein, the front view of the star-like cell element body is consistent with side view diagram shape, and top view is square grid.
5. a kind of bumper characterized by comprising
Two frame cross disposed in parallel and longitudinal beam are mounted on the star-like Cellular structure between crossbeam and longitudinal beam
Energy-absorption box,
Wherein, the energy-absorption box of the star-like Cellular structure is star-like Cellular structure described in any one of claim 1-5
Energy-absorption box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910348306.9A CN110015255B (en) | 2019-04-28 | 2019-04-28 | Energy absorption box with star-shaped cell structure and automobile bumper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910348306.9A CN110015255B (en) | 2019-04-28 | 2019-04-28 | Energy absorption box with star-shaped cell structure and automobile bumper |
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| CN110015255A true CN110015255A (en) | 2019-07-16 |
| CN110015255B CN110015255B (en) | 2022-04-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110619189A (en) * | 2019-09-27 | 2019-12-27 | 五邑大学 | Three-dimensional zero Poisson ratio microscopic structure based on star structure and macroscopic structure thereof |
| CN111969327A (en) * | 2020-08-21 | 2020-11-20 | 北京化工大学 | Deformation-designable and non-contact-controllable two-dimensional mechanical metamaterial |
| CN115030303A (en) * | 2022-06-20 | 2022-09-09 | 东北大学 | Internal-locking assembled three-dimensional reentry honeycomb type negative poisson ratio three-dimensional grid |
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