CN110043593A - A kind of honeycomb energy absorbing structure and absorbing structure preparation method - Google Patents
A kind of honeycomb energy absorbing structure and absorbing structure preparation method Download PDFInfo
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- CN110043593A CN110043593A CN201910335239.7A CN201910335239A CN110043593A CN 110043593 A CN110043593 A CN 110043593A CN 201910335239 A CN201910335239 A CN 201910335239A CN 110043593 A CN110043593 A CN 110043593A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/128—Vibration-dampers; Shock-absorbers using plastic deformation of members characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart
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Abstract
A kind of honeycomb energy absorbing structure and absorbing structure preparation method, the present invention relates to energy absorbing structure and absorbing structure preparation methods, the present invention is confined to single direction design to solve existing simple endergonic structure, it can not adapt to the impact condition of direction change, complicated endergonic structure increases the difficulty of technique production process, reduce the energy absorption capability of unit mass, it includes multiple energy-absorbing components, multiple energy-absorbing component side by side parallel setting composition honeycomb energy absorbing structures, the method is realized according to the following steps: step 1: being cut by line cutting technology to aluminium alloy or stainless steel plate, step 2: the plate cut in step 1 and looping tube are successively cleaned, except grease stain and processing of rust removing；Step 3: ' ten ' word cross boards are welded on the inner sidewall of torus, and energy-absorbing component is made；Step 4: multiple energy-absorbing components obtained in step 3 being rectangle and are arranged, and the present invention is in energy absorbing structure field.
Description
Technical field
The present invention relates to energy absorbing structure and absorbing structure preparation method, in particular to a kind of honeycomb energy absorbing structure
And absorbing structure preparation method.
Background technique
Energy absorbing structure, by lightweight, specific strength is high, specific stiffness is high, the platform with micro-structure elastic-plastic buckling becomes
The advantages such as shape characteristic and high-energy absorption performance, simple industrial production process, are common safety devices, are widely applied
In the large scale industries engineering field such as aerospace, Vehicle Engineering, ocean engineering, the generation of impact accident is avoided, is subtracted
Less or reduce casualties and property loss.Currently, honeycomb energy absorption single cell structure by simple quadrangle, hexagon and
Annulus develops to complicated rotation quadrangle and chiral structure.Although these structures can control Poisson's ratio, unit is reduced
The energy absorption capability of quality.Complicated endergonic structure increases the difficulty of technique production process.In addition, being inhaled using simple
Energy structure carries out gradient design, is often confined to single direction, can not adapt to the impact condition of direction change.
Summary of the invention
The present invention is confined to single direction design to solve existing simple endergonic structure, can not adapt to direction change
Impact condition, complicated endergonic structure increase the difficulty of technique production process, reduce the energy absorption capability of unit mass, into
And a kind of honeycomb energy absorbing structure and absorbing structure preparation method are provided,
The present invention in order to solve the above problem and the technical solution adopted is that:
It includes multiple energy-absorbing components, and each energy-absorbing component includes torus and ' ten ' word cross boards；' ten ' word cross boards
It is fixedly mounted on the inner sidewall of torus, multiple energy-absorbing component side by side parallel setting composition honeycomb energy absorbing structures, and appoints
Two neighboring torus of anticipating is fixedly connected.
The method is realized according to the following steps:
Step 1: cutting aluminium alloy or stainless steel plate by line cutting technology, and by lathe to metal
Round tube is cut；
Step 2: the plate cut in step 1 and looping tube are successively cleaned, except grease stain and processing of rust removing；
Step 3: by the plate after processing of rust removing in step 2 carry out welding be made ' ten ' word cross boards and will ' ten ' words friendship
Fork plate is welded on the inner sidewall of torus, and energy-absorbing component is made；
Step 4: multiple energy-absorbing components obtained in step 3 are rectangle and are arranged, and two circles of arbitrary neighborhood
Ring body lateral wall contact position is welded and fixed, and then obtains honeycomb energy absorbing structure.
Beneficial effects of the present invention:
1, it selects simple structure as ' ten ' word cross boards 2 and torus 1 to form energy-absorbing component, simplifies industrial production
Process, and can adapt to extreme, complicated operating condition.
2, energy-absorbing component is formed by the way that ' ten ' word cross boards 2 are mounted in torus 1, it is multiple by what is be installed together
Energy-absorbing component provides a kind of zero Poisson specific energy absorption honeycomb, avoids conventional energy absorbing structure by one direction pressure
When contracting, the deformation that vertical direction expands causes additional injuries.
3, energy-absorbing component is formed by the way that ' ten ' word cross boards 2 are mounted in torus 1, honeycomb is greatly improved
Unit cell rigidity, can more fully resist impact compress deformation.
4, energy-absorbing component is formed by the way that ' ten ' word cross boards 2 are mounted in torus 1, honeycomb is greatly improved
Platform bearing capacity, the mechanical characteristic of structure is optimized while taking into account functional characteristic.
5, energy-absorbing component is formed by the way that ' ten ' word cross boards 2 are mounted in torus 1, honeycomb is greatly improved
Energy absorption capability, can preferably prevent that structure is protected to be damaged.
6, by the thickness of ' ten ' word cross boards 2 of control, can carry out on horizontal and vertical two orthogonal directions simultaneously
Density gradient design, adapts to variable impact direction condition, has certain adaptive characteristic.
Detailed description of the invention
Fig. 1 is that the application is rectangle arrangement overall structure diagram.
Fig. 2 is the main view of energy-absorbing component.
Fig. 3 is the honeycomb energy absorbing structure of the application and the energy absorption correlation curve of conventional roundabout energy absorbing structure
Figure, abscissa is apparent strain in figure, and ordinate is unit mass absorption energy, unit J/g, and a represents the application's in figure
The energy that honeycomb energy absorbing structure absorbs, b represent the energy that transmission annulus energy absorbing structure absorbs.
Fig. 4 be in Fig. 1 rectangularity arrange honeycomb energy absorbing structure in compression process the left and right sides will not generate it is swollen
Zero swollen Poisson's ratio malformation figure.
Fig. 5 is the gradient design of existing energy absorbing structure.
Fig. 6 is the density self-adapting gradient honeycomb energy that the honeycomb energy absorbing structure based on the application can further be carried out
Absorbing structure.The thickness of ' ten ' word cross boards 2, realizes two-way density in energy-absorbing component by changing honeycomb energy absorbing structure
Gradient design.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of honeycomb described in present embodiment in conjunction with Fig. 1-Fig. 4 and Fig. 6
Energy absorbing structure, it includes multiple energy-absorbing components, and each energy-absorbing component includes the word of torus 1 and ' ten ' cross board 2；' ten ' words
Cross board 2 is fixedly mounted on the inner sidewall of torus 1, multiple energy-absorbing component side by side parallel setting composition honeycomb energy absorption knots
Structure, and two torus 1 of arbitrary neighborhood are fixedly connected.
Specific embodiment 2: illustrating present embodiment, a kind of honeycomb energy described in present embodiment in conjunction with Fig. 1 and Fig. 2
Absorbing structure, the word of torus 1 and ' ten ' cross board 2 are that metal material is made, and other methods are same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment, a kind of honeycomb energy described in present embodiment in conjunction with Fig. 1 and Fig. 2
Absorbing structure, the length of torus 1 in axial direction and the equal length of ' ten ' word cross boards 2 along its length.Other methods
It is same as the specific embodiment one.
Specific embodiment 4: illustrating present embodiment, a kind of honeycomb energy described in present embodiment in conjunction with Fig. 1 and Fig. 2
Absorbing structure, the outer diameter of torus 1 are 5mm-20mm, and the length dimension of torus 1 in axial direction is 1 outer diameter of torus
The 10%-20% of size.Other methods are same as the specific embodiment one.
Specific embodiment 5: illustrating present embodiment, a kind of honeycomb energy described in present embodiment in conjunction with Fig. 1 and Fig. 2
Absorbing structure, the wall thickness dimension of torus 1 are the 2%-20% of 1 outer diameter of torus, the cross on each ' ten ' word cross boards 2
Board width size is equal with vertical version width dimensions, and other methods are identical as specific embodiment four.
Specific embodiment 6: illustrating present embodiment, a kind of honeycomb energy described in present embodiment in conjunction with Fig. 1 and Fig. 2
Absorbing structure, the inner sidewall of four sides connecting pin of ' ten ' word cross boards 2 and torus 1 is fixed on each energy-absorbing component connects
It connects.And ' ten ' word cross board 2 be welded and fixed with torus 1, other methods are identical with embodiment two.
Specific embodiment 7: illustrating present embodiment, a kind of honeycomb energy suction described in present embodiment in conjunction with Fig. 1-Fig. 3
The preparation method for receiving structure, step 1: cuts aluminium alloy or stainless steel plate by line cutting technology, and passes through machine
Bed cuts metal circular tube；
Step 2: the plate cut in step 1 and looping tube are successively cleaned, except grease stain and processing of rust removing；
Step 3: the plate after processing of rust removing in step 2 is subjected to welding and ' ten ' word cross boards 2 are made and by ' ten ' words
Cross board 2 is welded on the inner sidewall of torus 1, and energy-absorbing component is made；
Step 4: multiple energy-absorbing components obtained in step 3 are rectangle and are arranged, and two circles of arbitrary neighborhood
1 lateral wall contact position of ring body is welded and fixed, and then obtains honeycomb energy absorbing structure.
Specific embodiment 8: illustrating present embodiment, a kind of honeycomb described in present embodiment in conjunction with Fig. 1, Fig. 4 and Fig. 6
The preparation method of energy absorbing structure, ' ten ' word cross boards 2 and torus 1 are to pass through soldering in each energy-absorbing component in step 3
Or Laser Welding is welded and fixed, it is by soldering or Laser Welding weldering that two 1 lateral wall contact positions of torus, which are welded and fixed, in step 4
Fixation is connect, other methods are identical as specific embodiment seven.
Specific embodiment 9: density is defined as entity mass ratio by taking Fig. 5 hollow pipe honeycomb energy absorbing structure figure as an example
Upper total volume.The honeycomb energy absorbing structure of same structure type, in one timing of density, energy absorption capability is certain.It can lead to
The density size for changing part is crossed, is designed to density gradient.Such as Fig. 5, model can be divided into 3 parts, by changing annulus
Outer diameter, density above is small, and density below is big, forms density gradient design from up to down.Density gradient design can be full
Gain mechanical property while Football Association's energy absorption size is realized and absorbs energy function mostly low with load is born by protection end early period
It can characteristic.But traditional gradient design can only not be able to satisfy the impact direction of variation in one direction, impact not necessarily eternal edge
The direction in model from top to bottom.When impact direction from left to right when, the density of model from left to right is uniform in Fig. 5,
Density gradient design loses effect.Therefore the application carries out the design of orthogonal density gradient in Fig. 6.By changing horizontal direction
Density gradient design is realized with the plate thickness of vertical direction.Which no matter impact along direction, model all has density along impact direction
Gradient design.
Claims (8)
1. a kind of honeycomb energy absorbing structure, it is characterised in that: it includes multiple energy-absorbing components, and each energy-absorbing component includes annulus
Body (1) and ' ten ' word cross boards (2)；' ten ' word cross boards (2) are fixedly mounted on the inner sidewall of torus (1), multiple energy-absorbings
Component side by side parallel setting composition honeycomb energy absorbing structure, and two torus (1) of arbitrary neighborhood are fixedly connected.
2. a kind of honeycomb energy absorbing structure according to claim 1, it is characterised in that: torus (1) and ' ten ' words intersect
Plate (2) is that metal material is made.
3. a kind of honeycomb energy absorbing structure according to claim 1, it is characterised in that: torus (1) is in axial direction
Length and the equal length of ' ten ' word cross boards (2) along its length.
4. a kind of honeycomb energy absorbing structure according to claim 1, it is characterised in that: the outer diameter of torus (1) is
5mm-20mm, the length dimension of torus (1) in axial direction are the 10%-20% of torus (1) outer diameter.
5. a kind of honeycomb energy absorbing structure according to claim 4, it is characterised in that: the wall thickness dimension of torus (1) is
The 2%-20% of torus (1) outer diameter, transverse slat width dimensions and vertical version width dimensions on each ' ten ' word cross boards (2)
It is equal.
6. a kind of honeycomb energy absorbing structure according to claim 1, it is characterised in that: ' ten ' words are handed on each energy-absorbing component
Four sides connecting pin of fork plate (2) is fixedly connected with the inner sidewall of torus (1).
7. a kind of exist for claim 1,2,3,4,5 or a kind of 6 preparation methods of honeycomb energy absorbing structure, feature
In: the method is realized according to the following steps:
Step 1: cutting aluminium alloy or stainless steel plate by line cutting technology, and by lathe to metal circular tube
It is cut；
Step 2: the plate cut in step 1 and looping tube are successively cleaned, except grease stain and processing of rust removing；
Step 3: by the plate after processing of rust removing in step 2 carry out welding be made ' ten ' word cross boards (2) and will ' ten ' words friendship
Fork plate (2) is welded on the inner sidewall of torus (1), and energy-absorbing component is made；
Step 4: multiple energy-absorbing components obtained in step 3 are rectangle and are arranged, and two torus of arbitrary neighborhood
(1) lateral wall contact position is welded and fixed, and then obtains honeycomb energy absorbing structure.
8. a kind of honeycomb energy absorbing structure according to claim 7, it is characterised in that: in step 3 in each energy-absorbing component
' ten ' word cross boards (2) and torus (1) are welded and fixed by soldering or Laser Welding, and two torus (1) are outside in step 4
Side wall contact position, which is welded and fixed, to be welded and fixed by soldering or Laser Welding.
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| CN201910335239.7A CN110043593B (en) | 2019-04-24 | 2019-04-24 | Honeycomb energy absorption structure and preparation method thereof |
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| CN201910335239.7A CN110043593B (en) | 2019-04-24 | 2019-04-24 | Honeycomb energy absorption structure and preparation method thereof |
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| CN110043593B CN110043593B (en) | 2021-05-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649191A (en) * | 2019-08-28 | 2020-01-03 | 南京航空航天大学 | Electric automobile battery box based on mix poisson's ratio |
| CN111017270A (en) * | 2019-12-20 | 2020-04-17 | 北京空间机电研究所 | Non-positive poisson ratio buffering energy-absorbing structure filled with round pipe |
| CN111706634A (en) * | 2020-06-04 | 2020-09-25 | 西安交通大学 | Multi-cell-tube reinforced foamed aluminum structure and manufacturing process thereof |
| CN115233593A (en) * | 2022-06-29 | 2022-10-25 | 北京信息科技大学 | Road anticollision section of thick bamboo is filled to gradient honeycomb |
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| CN111706634A (en) * | 2020-06-04 | 2020-09-25 | 西安交通大学 | Multi-cell-tube reinforced foamed aluminum structure and manufacturing process thereof |
| CN115233593A (en) * | 2022-06-29 | 2022-10-25 | 北京信息科技大学 | Road anticollision section of thick bamboo is filled to gradient honeycomb |
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| CN110043593B (en) | 2021-05-18 |
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