CN102537644A - Porous material filling double-layer tube - Google Patents
Porous material filling double-layer tube Download PDFInfo
- Publication number
- CN102537644A CN102537644A CN2012100389364A CN201210038936A CN102537644A CN 102537644 A CN102537644 A CN 102537644A CN 2012100389364 A CN2012100389364 A CN 2012100389364A CN 201210038936 A CN201210038936 A CN 201210038936A CN 102537644 A CN102537644 A CN 102537644A
- Authority
- CN
- China
- Prior art keywords
- porous material
- tube
- thin walled
- walled tube
- layer thin
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a porous material filling double-layer tube. The porous material filling double-layer tube comprises an outer layer thin-wall tube and an inner layer thin-wall tube, wherein the outer layer thin-wall tube and the inner layer thin-wall tube are arranged in a nesting mode; and the part between the outer layer thin-wall tube and the inner layer thin-wall tube is cavities and filled with porous material layers. The porous material filling double-layer tube provided by the invention has the advantages of simple and compact structure, low cost and better buffer performance, and is applicable for large scale production and the like.
Description
Technical field
The present invention is mainly concerned with crashworthiness structural design field, refers in particular to a kind of porous material in fields such as shipping industry, automotive industry, weaponry transportation and aerospace industry that is applicable to and fills bimetallic tube.
Background technique
For shipping industry, automotive industry and space flight and aviation industry, impingement phenomenon is an of crucial importance and inevitable problem always.In the last thirty years; Along with automobile quantity increases sharply and the improving constantly of travelling speed, large ship faces excessive risk operation and various reciprocating type space flight instruments in the shipping process continuous increase; Make that collision problem is more and more outstanding; The collision accident that increases sharply has caused great personal injury and property loss, so the problem of crashworthiness performance overriding concern when having become structural designs such as boats and ships, vehicle and aircraft.For moving structures such as vehicle, astrovehicles, crashing or can absorb impact energy during specific impact event and protect the member and the ability of valuables safety is called " crashworthiness ".In recent years, how to control effectively and reduce energy loss and receive common concern always.
Summary of the invention
The technical problem that the present invention will solve just is: to the technical problem that existing technology exists, the present invention provides a kind of mass production simple and compact for structure, with low cost, suitable, has the porous material filling bimetallic tube of preferable shock-absorbing capacity.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of porous material is filled bimetallic tube, comprises being outer thin walled tube and the internal layer thin walled tube that nested shape is arranged, is cavity shape and is filled with porous material layer between said outer thin walled tube and the internal layer thin walled tube.
As further improvement of the present invention:
Said outer thin walled tube is identical with the sectional shape of internal layer thin walled tube.
The sectional shape of said outer thin walled tube and internal layer thin walled tube is circle, regular polygon or arbitrary polygon.
Said outer thin walled tube and internal layer thin walled tube are through being positioned at bonding being integral of porous material layer between the two.
Compared with prior art, the invention has the advantages that: porous material of the present invention is filled bimetallic tube, simple and compact for structure, with low cost and suitable mass automatic production.Porous material layer and thin-walled bimetallic tube are combined into after porous material fills bimetallic tube, have improved the shock-absorbing capacity of structure greatly.In structure compressive strain process; Because the influence of coupling effect between porous material and the thin-walled bimetallic tube; The energy-absorbing of porous material filling bimetallic tube under identical compression displacement condition is also more than the energy-absorbing sum of compressing porous material and thin-walled bimetallic tube separately; Its cushion energy absorbing property is significantly strengthened, and all gets a promotion than energy-absorbing (unit mass energy-absorbing) and the load to weight ratio ratio of crest (average load with).
Description of drawings
Fig. 1 is the structural representation of the present invention when adopting regular hexagonal section.
Fig. 2 is the structural representation of the present invention when adopting the triangular-section.
Fig. 3 is the structural representation of the present invention when adopting square sectional.
Fig. 4 is the structural representation of the present invention when adopting the regular pentagon cross section.
Fig. 5 is the structural representation of the present invention when adopting circular cross-section.
Fig. 6 is the structural representation when adopting the regular hexagonal section of one group of concrete parameter in the specific embodiment.
Fig. 7 is that the present invention is compressed the structural representation of a section when moving.
Fig. 8 is that the present invention is compressed the structural representation when complete.
Marginal data
1, outer thin walled tube; 2, internal layer thin walled tube; 3, porous material layer.
Embodiment
Below will combine Figure of description and specific embodiment that the present invention is explained further details.
As shown in Figure 1, porous material of the present invention is filled bimetallic tube, comprises being the outer thin walled tube 1 and internal layer thin walled tube 2 that nested shape is arranged, is cavity shape and is filled with porous material layer 3 between outer thin walled tube 1 and the internal layer thin walled tube 2.Wherein, outer thin walled tube 1 all adopts thin metallic tubd with internal layer thin walled tube 2, and it is used as buffering energy-absorbing structure; When bumping, thin metallic tubd generally has stable progressive failure mode under axial compression, absorb the energy that bump produces through its plastic buckling.It is light that 3 of porous material layers have preferable stable energy absorption characteristics and an architecture quality, can adopt aluminum honeycomb material or foamed aluminium material or the like according to actual needs; Certainly, can also choose other unlike material and dissimilar porous materials according to actual energy absorption performance requirement.In use, can porous material of the present invention be filled the buffering crashworthiness districts such as front and rear part or spacecraft landing leg that bimetallic tube is placed on automobile; Outer thin walled tube 1, internal layer thin walled tube 2 and porous material layer 3 receive axial compression during work, absorb energy through the modes such as interaction between self flexing, conquassation distortion and thin walled tube and the porous material layer, the impulsive load when alleviating collision.Like Fig. 7 and shown in Figure 8, can know that through contrast whole porous material is filled bimetallic tube can according to suffered axial compressive force, produce the distortion of different displacements after collision.
Referring to Fig. 1 and Fig. 6, in the present embodiment, outer thin walled tube 1 is identical with the sectional shape of internal layer thin walled tube 2, all adopts regular hexagon; Wherein
1With
T1Be respectively the circumscribed circle diameter and the wall thickness of outer thin walled tube 1,
2With
T2Be respectively the circumscribed circle diameter and the wall thickness of internal layer thin walled tube 2, the orientation of outer thin walled tube 1 and internal layer thin walled tube 2 is consistent, and concrete size changes according to the difference of actual conditions.
Can certainly be according to the installation needs and the energy absorption performance requirement of reality, select triangular-section as shown in Figure 2 or square sectional as shown in Figure 3 or regular pentagon cross section as shown in Figure 4 or circular cross-section or other forms of arbitrary polygon cross section as shown in Figure 5.
In the present embodiment, outer thin walled tube 1 and internal layer thin walled tube 2 can keep whole conformity when compressive strain through being positioned at porous material layer 3 bonding being integral between the two.
Below only be preferred implementation of the present invention, protection scope of the present invention also not only is confined to the foregoing description, and all technological schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art some improvement and retouching not breaking away under the principle of the invention prerequisite should be regarded as protection scope of the present invention.
Claims (4)
1. a porous material is filled bimetallic tube; It is characterized in that: comprise being outer thin walled tube (1) and the internal layer thin walled tube (2) that nested shape is arranged, be cavity shape and be filled with porous material layer (3) between said outer thin walled tube (1) and the internal layer thin walled tube (2).
2. porous material according to claim 1 is filled bimetallic tube, and it is characterized in that: said outer thin walled tube (1) is identical with the sectional shape of internal layer thin walled tube (2).
3. porous material according to claim 2 is filled bimetallic tube, it is characterized in that: the sectional shape of said outer thin walled tube (1) and internal layer thin walled tube (2) is circle, regular polygon or arbitrary polygon.
4. fill bimetallic tube according to claim 1 or 2 or 3 described porous materials, it is characterized in that: said outer thin walled tube (1) and internal layer thin walled tube (2) are through being positioned at bonding being integral of porous material layer (3) between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100389364A CN102537644A (en) | 2012-02-21 | 2012-02-21 | Porous material filling double-layer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100389364A CN102537644A (en) | 2012-02-21 | 2012-02-21 | Porous material filling double-layer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537644A true CN102537644A (en) | 2012-07-04 |
Family
ID=46345256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100389364A Pending CN102537644A (en) | 2012-02-21 | 2012-02-21 | Porous material filling double-layer tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537644A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235616A (en) * | 2015-11-02 | 2016-01-13 | 湖南大学 | Multi-cell-thin-wall energy absorbing structure and application structure thereof |
| CN105257756A (en) * | 2015-10-15 | 2016-01-20 | 西华大学 | Direct-plug type energy absorption assembly of thin-walled tube |
| CN107606019A (en) * | 2017-08-09 | 2018-01-19 | 西北工业大学 | A kind of double upset endergonic structures of double-deck end seal with high efficiency buffer energy absorption characteristics |
| WO2018121789A1 (en) * | 2016-12-31 | 2018-07-05 | 郑州吉田专利运营有限公司 | Fibre fabric composite structural component, automobile framework prepared using same, and method |
| CN110356051A (en) * | 2019-07-22 | 2019-10-22 | 西安理工大学 | A kind of crash energy absorption equipment of foam filled polygon honeycomb interlayer pipe |
| CN112984017A (en) * | 2021-03-29 | 2021-06-18 | 广州大学 | Bionic multistage energy absorption structure and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439977Y (en) * | 2000-08-14 | 2001-07-25 | 许万禄 | Energy-absorption beam for automobile |
| TWM303165U (en) * | 2006-07-21 | 2006-12-21 | Kuen Uei Ind Co Ltd | Pipes for a bike |
| WO2010008217A2 (en) * | 2008-07-16 | 2010-01-21 | Moon Kwang Sun | Vehicle bumper |
| TWM413061U (en) * | 2011-04-22 | 2011-10-01 | Jian-Hong Liu | Structure of reinforced-type hollow tube |
-
2012
- 2012-02-21 CN CN2012100389364A patent/CN102537644A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439977Y (en) * | 2000-08-14 | 2001-07-25 | 许万禄 | Energy-absorption beam for automobile |
| TWM303165U (en) * | 2006-07-21 | 2006-12-21 | Kuen Uei Ind Co Ltd | Pipes for a bike |
| WO2010008217A2 (en) * | 2008-07-16 | 2010-01-21 | Moon Kwang Sun | Vehicle bumper |
| TWM413061U (en) * | 2011-04-22 | 2011-10-01 | Jian-Hong Liu | Structure of reinforced-type hollow tube |
Non-Patent Citations (1)
| Title |
|---|
| 郭刘伟: "泡沫铝夹芯双管结构的力学行为研究", 《中国优秀博硕士学位论文全文数据库工程科技I辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257756A (en) * | 2015-10-15 | 2016-01-20 | 西华大学 | Direct-plug type energy absorption assembly of thin-walled tube |
| CN105235616A (en) * | 2015-11-02 | 2016-01-13 | 湖南大学 | Multi-cell-thin-wall energy absorbing structure and application structure thereof |
| WO2018121789A1 (en) * | 2016-12-31 | 2018-07-05 | 郑州吉田专利运营有限公司 | Fibre fabric composite structural component, automobile framework prepared using same, and method |
| CN107606019A (en) * | 2017-08-09 | 2018-01-19 | 西北工业大学 | A kind of double upset endergonic structures of double-deck end seal with high efficiency buffer energy absorption characteristics |
| CN107606019B (en) * | 2017-08-09 | 2019-06-21 | 西北工业大学 | A kind of double overturning endergonic structures of the double-deck end seal with high efficiency buffer energy absorption characteristics |
| CN110356051A (en) * | 2019-07-22 | 2019-10-22 | 西安理工大学 | A kind of crash energy absorption equipment of foam filled polygon honeycomb interlayer pipe |
| CN112984017A (en) * | 2021-03-29 | 2021-06-18 | 广州大学 | Bionic multistage energy absorption structure and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102537644A (en) | Porous material filling double-layer tube | |
| CN102700488B (en) | Buffering energy-absorbing structure | |
| Salehghaffari et al. | Attempts to improve energy absorption characteristics of circular metal tubes subjected to axial loading | |
| Li et al. | Crashworthiness of foam-filled thin-walled circular tubes under dynamic bending | |
| CN109532730B (en) | Automobile energy absorbing box device filled inside | |
| CN103398122B (en) | Easily-assembled self-locking energy-absorbing device of dumbbell-shaped thin-walled-tube structure | |
| CN110514082B (en) | Sandwich protective structure based on gradient foamed aluminum filling expansion thin-walled tube | |
| CN104590178A (en) | Automobile energy absorption box | |
| CN103287369A (en) | Multistage embedded type octagonal automobile energy absorbing and buffering device | |
| CN103410904A (en) | Round tube combination buffering device | |
| CN112550196A (en) | Multidirectional-impact-resistant honeycomb-structure buffering energy-absorbing device | |
| CN113339440A (en) | Multidirectional bearing honeycomb buffering combined energy absorption structure of imitated football alkene structure | |
| CN110145562B (en) | Multidirectional self-locking energy absorption system with bamboo-shaped thin-walled tube structure and easy to assemble | |
| CA2909123A1 (en) | Impact absorber device, particularly for aircraft | |
| CN105257756A (en) | Direct-plug type energy absorption assembly of thin-walled tube | |
| CN200985916Y (en) | Winding reinforcement type bag-type energy accumulator | |
| CN110843710A (en) | Automobile collision energy-absorbing sandwich structure | |
| CN104386011A (en) | Compound type crash box with high impact energy-absorption performance | |
| CN202147649U (en) | Automobile collision energy absorber | |
| CN110712861A (en) | Buffering energy-absorbing device of foam-filled polygonal corrugated sandwich pipe | |
| CN108674635B (en) | A kind of undercarriage pendant hits energy absorption device | |
| CN106828376B (en) | Reverse-cone-shaped honeycomb automobile bumper supporting structure | |
| CN113665517B (en) | Automobile bumper using gradient foam aluminum | |
| CN214245600U (en) | Ship collision prevention device for elastic corrugated interlayer flexible bridge | |
| CN211417184U (en) | Front energy absorption device of passenger car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120704 |