CN110263454A - A kind of thin-walled ball string absorption systems that various dimensions are self-locking - Google Patents
A kind of thin-walled ball string absorption systems that various dimensions are self-locking Download PDFInfo
- Publication number
- CN110263454A CN110263454A CN201910555727.9A CN201910555727A CN110263454A CN 110263454 A CN110263454 A CN 110263454A CN 201910555727 A CN201910555727 A CN 201910555727A CN 110263454 A CN110263454 A CN 110263454A
- Authority
- CN
- China
- Prior art keywords
- thin
- ball string
- walled
- walled ball
- locking
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
Abstract
The invention discloses a kind of thin-walled ball string absorption systems that various dimensions are self-locking, thin-walled ball string structure is made for metal material, composite structure is staggered by several thin-walled ball string separation structures and is formed, and each thin-walled ball string separation structure concatenates multiple equidistant thin-walled balls by an elongated thin-wall circular tube and forms.The present invention is designed by thin-walled ball string structure, realize locking between thin-walled ball string separation structure each in arbitrary direction in space impact process certainly, traditional absorption systems are overcome to need in external installation restraint device or in the defect of internal processing attachment device, greatly reduce the manpower and material resources cost and time cost of dismounting, also deficiency of the specific single direction impact from locking can only be coped with by solving dumbbell shaped thin-wall tube absorption systems, it converts impact energy to using interstructural self-locking effect the flexible deformation and plastic dissipation of structure, can effectively absorb impact energy.According to the size of impact energy and place actual conditions, the number and the number of plies of every layer of placement thin-walled ball string separation structure of composite structure can freely adjust, simply and effectively improve the utilization rate of material.
Description
Technical field
The present invention relates to the technical field of absorption systems, in particular to a kind of thin-walled ball string energy-absorbing system that various dimensions are self-locking
System, the absorption systems are suitable for the vehicles such as vehicle, train and spacecraft, the impact resistance damping protection system for dropping article,
Or the explosion-proof surge guard system of nuclear power facility.
Background technique
The accidents such as collision, impact, explosion will lead to structure and destroy under the action of Strong Impact Loading, cause serious
Loss of Life and property, therefore the overall performance after how being hit according to structure propose reasonable design scheme and formulate solid
The effective protection measure of fixed or interim installation, the excellent shock resistance energy absorption device of design performance, it has also become structure security protection
In heat subject.
Under the design concept for introducing buffering, energy-absorbing mechanism, metal ring structure is with stabilization, specific energy consumption height, carrying
The advantages such as power is stable, deformation stroke is long, initial impact force is small, materials are convenient and are easily changed, in engineer application and national defence work
It is applied in terms of journey, achieves good economic benefit and social benefit.Therefore the shock resistance energy-absorbing of existing design
Device mostly uses multiple rows of round tube to assemble.
However, lateral splash of round tube can reduce energy absorbing efficiency, and be possible to cause secondary damage in impact process.
To overcome this defect, two methods are generallyd use in engineering: first, in the biggish fixation of boundary installation strength of round tube array
Baffle constrains the lateral magnification of round tube array；Second, it will be fixed between round tube with welding or bolt, constrain the phase between round tube
To movement.However, both methods all increases time and the human cost of installation in varying degrees, especially speedily carry out rescue work promptly
In the case of it is unsatisfactory.To overcome the shortcomings of round tube system in flexibility, it is thin that a kind of dumbbell shaped that can be self-locking is proposed before this
Wall pipe structure, this set system can form energy absorption device by being staggered, and are not necessarily to boundary constraint and attachment device, can cope with specific
One direction impact, but the impact for coping with other directions can still generate splashing.
So arbitrary direction in space impact, easy-to-mount energy absorbing structure can be coped with by finding one kind, sky can be coped with
Between any direction surge guard, and can reduce dismounting material, time and human cost, fast and efficiently take as needed
Shock proof guard system is built up, is a meaningful job, for improving stock utilization, fast construction shock resistance is prevented
Protecting system, reduction life and property loss have important value.
Summary of the invention
The purpose of the present invention is to provide a kind of thin-walled ball string absorption systems that various dimensions are self-locking, which is to be easy to
Dismounting, economical and practical energy absorbing device provide more convenient, quick, economical, safe for the protection that impact explodes
It ensures.
A kind of the technical solution adopted by the present invention are as follows: thin-walled ball string absorption systems that various dimensions are self-locking, it is characterised in that: thin
Squash string separation structure concatenates multiple equidistant thin-walled balls by an elongated thin-wall circular tube and forms, several thin-walled ball strings point knot
The layering of structure transverse and longitudinal, which is staggered, forms multiple rows of multiple row composite structure, and adjacent two rows of structures is made to reach self-locking effect in impact process
Fruit；
Ball outer diameter D and round tube outside diameter d meet D/d >=5 in the thin-walled ball string separation structure；
Distance of center circle l, ball outer diameter D and round tube outside diameter d meet between the thin-walled ball string separation structure two adjacent spheres
Axial overall length L, the distance of center circle l and ball number N of the thin-walled ball string separation structure meet L=(N-1) l+D；
Further, being staggered without increasing in outside installation restraint device or in inside between thin-walled ball string separation structure
Add attachment device, absorption systems can be rearranged.
The principle of the invention lies in:
A kind of thin-walled ball string absorption systems that various dimensions are self-locking, generally multiple thin-walled ball string transverse and longitudinals made of metal material
Composite structure made of layering is staggered.Each thin-walled ball string separation structure is multiple equidistant by an elongated thin-wall circular tube concatenation
Thin-walled ball form, composite structure is staggered by several thin-walled ball strings and is formed, and the aspect ratio of thin-walled ball string makes adjacent
Two rows of mutual clamping locks of structure, achieve the effect that in impact process self-locking in any direction.The number of every layer of placement thin-walled ball string and
The number of plies can be according to the size and place actual conditions flexible modulation of impact energy.
The advantages of the present invention over the prior art are that:
1, a kind of thin-walled ball string absorption systems that various dimensions are self-locking of the present invention, without applying any boundary constraint or reinforcing tight
Firmware is can be achieved in arbitrary direction in space impact process from locking, to eliminate the people for applying constraint or reinforcing fastener
Power material resources cost, there is stronger economy.
2, a kind of thin-walled ball string absorption systems that various dimensions are self-locking of the present invention, the structure is easy to removal and installation, assembles
Positioning device is not necessarily in journey between each separation structure, without technical difficulty, time-consuming is few for installation, can meet emergency shock resistance need
It asks.
3, a kind of thin-walled ball string absorption systems that various dimensions are self-locking of the present invention, are made of multiple thin-walled ball string separation structures, can
According to the actual conditions such as impact energy size and place require, increase and decrease thin-walled ball string separation structure number, adjust at any time it is multidirectional from
The scale of energy absorption device is locked, there is considerable flexibility and controllability.
Detailed description of the invention
Fig. 1 is combining structure schematic diagram according to the present invention.
Fig. 2 is thin-walled ball string separation structure schematic diagram according to the present invention.
Fig. 3 is the diagrammatic cross-section that thin-walled ball string separation structure according to the present invention passes through axis.
Fig. 4 is the schematic diagram that composite structure bears before impact of collision in 1 numerical simulation of embodiment according to the present invention.
Fig. 5 is the schematic diagram that composite structure bears after impact of collision in 1 numerical simulation of embodiment according to the present invention.
Fig. 6 is that composite structure longitudinal load-bearing energy displacement curve shows in 1 numerical simulation of embodiment according to the present invention
It is intended to.
Fig. 7 is the schematic diagram that composite structure bears before lateral impact in 2 numerical simulation of embodiment according to the present invention.
Fig. 8 is the schematic diagram that composite structure bears after lateral impact in 2 numerical simulation of embodiment according to the present invention.
Fig. 9 is that composite structure laterally carries showing for energy displacement curve in 2 numerical simulation of embodiment according to the present invention
It is intended to.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
A kind of thin-walled ball string absorption systems that various dimensions are self-locking of the present invention, as shown in Figure 1, generally made of metal material
Composite structure made of multiple thin-walled ball string arrangements；
The thin-walled ball string is the single separation structure in composite structure, and all thin-wall tubes adjacent with row are in same level
On or transversely arranged or longitudinal arrangement, adjacent row and row between round tube be staggered with round tube transverse and longitudinal.
It can freely select, answer in proportional region as needed to reach expected self-locking effect and energy absorption performance, size
Meet ball outer diameter D and round tube outside diameter d in thin-wall tube separation structure and meets D/d >=5, distance of center circle l and circle between two two adjacent spheres
Ball outer diameter D, round tube outside diameter d meetAxial overall length L, distance of center circle l and ball number N meet: L=(N-
1)l+D。
A kind of embodiment 1: thin-walled ball string absorption systems longitudinal load-bearing situation analysis that various dimensions are self-locking
By simulation calculation alluvium speed per hour v=72km/h=20m/s, impacts when amount of substance is m=133kg and need
The energy-absorbing effect of the corresponding multidirectional self-locking energy absorption device of installation.Selected composite structure is by 36 imitative sugarcoated haws thin-wall tubes point knot
Structure, which is staggered, forms 12 rows.Single separation structure parameter is as follows: ball outer diameter D=20mm, ball thickness T=0.3mm, outside round tube
Diameter d=1mm, circular tube thickness T=0.4mm, ball number N=3, axial length L=121mm.Using ABAQUS/Explicit into
Mobile state simulation.
Force-displacement curve is obtained according to numerical simulation, integral can be obtained the energy that composite structure is absorbed, can refer to attached drawing
Fig. 8 composite structure absorbs ENERGY E with the variation diagram of compression displacement U, learn the system can steady constant absorption energy, and simultaneously
It does not splash.If under the constraint of same boundary condition, round tube is directly broken up, and energy is absorbed using traditional round tube
Ability is very small, can be neglected.
Embodiment 2: a kind of thin-walled ball string absorption systems that various dimensions are self-locking laterally carry situation analysis
By simulation calculation alluvium speed per hour v=72km/h=20m/s, impacts when amount of substance is m=133kg and need
The energy-absorbing effect of the corresponding multidirectional self-locking energy absorption device of installation.Selected composite structure is by 36 imitative sugarcoated haws thin-wall tubes point knot
Structure, which is staggered, forms 12 rows.Single separation structure parameter is as follows: ball outer diameter D=20mm, ball thickness T=0.3mm, outside round tube
Diameter d=1mm, circular tube thickness T=0.4mm, ball number N=3, axial length L=121mm.Using ABAQUS/Explicit into
Mobile state simulation.
Force-displacement curve is obtained according to numerical simulation, integral can be obtained the energy that composite structure is absorbed, can refer to attached drawing
Fig. 8 composite structure absorbs ENERGY E with the variation diagram of compression displacement U, learn the system can steady constant absorption energy, and simultaneously
It does not splash.If under the constraint of same boundary condition, round tube is directly broken up, and energy is absorbed using traditional round tube
Ability is very small, can be neglected.
The ability that thin-walled ball string absorption systems absorb energy is mainly determined by geometry and geometric dimension, is keeping section
In the case where size cyclically-varying, present invention provide that proportional region in, can appropriate adjustment structure size, do not change self-locking
The self-locking effect of energy absorption device.
Non-elaborated part of the present invention belongs to techniques well known.
The above, part specific embodiment only of the present invention, but scope of protection of the present invention is not limited thereto, appoints
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover by what those skilled in the art
Within protection scope of the present invention.
Claims (3)
1. a kind of thin-walled ball string absorption systems that various dimensions are self-locking, it is characterised in that: thin-walled ball string separation structure is elongated thin by one
Wall round tube concatenates multiple equidistant thin-walled balls and forms, several thin-walled ball string separation structures, which are staggered, forms multiple layer combination knot
Structure achievees the effect that adjacent two rows of structures in impact process self-locking；
The thin-walled ball string separation structure is that equidistant several circles are formed by connecting by straight line by the section of axis, and adjacent
Distance of center circle l is greater than the outer diameter D of circle between circle.
2. a kind of self-locking thin-walled ball string absorption systems of various dimensions according to claim 1, it is characterised in that: thin-walled ball string
Being staggered without increasing attachment device in outside installation restraint device or in inside between separation structure, can random alignment group
At absorption systems.
3. a kind of self-locking thin-walled ball string absorption systems of various dimensions according to claim 1, it is characterised in that: thin-walled ball string
Ball outer diameter D and round tube outside diameter d meet D/d >=5 in separation structure, distance of center circle l, circular cross-section outer diameter D between two two adjacent spheres
Meet with round tube outside diameter dAxial overall length L, distance of center circle l and ball number N meet L=(N-1) l+D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555727.9A CN110263454B (en) | 2019-06-25 | 2019-06-25 | Multi-dimensional self-locking thin-wall ball string energy absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555727.9A CN110263454B (en) | 2019-06-25 | 2019-06-25 | Multi-dimensional self-locking thin-wall ball string energy absorption system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110263454A true CN110263454A (en) | 2019-09-20 |
| CN110263454B CN110263454B (en) | 2021-08-27 |
Family
ID=67921345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555727.9A Active CN110263454B (en) | 2019-06-25 | 2019-06-25 | Multi-dimensional self-locking thin-wall ball string energy absorption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110263454B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021099116A (en) * | 2019-12-20 | 2021-07-01 | トヨタ自動車株式会社 | Shock absorption member and method of manufacturing shock absorption member |
| CN113090694A (en) * | 2021-04-16 | 2021-07-09 | 中山大学 | Energy-absorbing protective device capable of being flexibly disassembled and rapidly expanded |
| CN114857193A (en) * | 2022-04-19 | 2022-08-05 | 福建工程学院 | Clamping groove type thin-walled tube energy absorption system easy to disassemble and assemble and capable of achieving three-dimensional self-locking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003320423A (en) * | 2002-05-08 | 2003-11-11 | National Institute Of Advanced Industrial & Technology | Impact energy absorbing structure |
| CN201348357Y (en) * | 2008-12-13 | 2009-11-18 | 卢柏钧 | Energy-saving and environment-friendly boiler |
| CN206386431U (en) * | 2017-01-11 | 2017-08-08 | 深圳市乾行达科技有限公司 | A kind of staggered porous energy absorber |
| CN107451347A (en) * | 2017-07-25 | 2017-12-08 | 中南大学 | Induce the Active Control Method of thin-wall pipe energy-absorbing |
| CN109707985A (en) * | 2018-12-06 | 2019-05-03 | 西北工业大学 | Endergonic structure |
-
2019
- 2019-06-25 CN CN201910555727.9A patent/CN110263454B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003320423A (en) * | 2002-05-08 | 2003-11-11 | National Institute Of Advanced Industrial & Technology | Impact energy absorbing structure |
| CN201348357Y (en) * | 2008-12-13 | 2009-11-18 | 卢柏钧 | Energy-saving and environment-friendly boiler |
| CN206386431U (en) * | 2017-01-11 | 2017-08-08 | 深圳市乾行达科技有限公司 | A kind of staggered porous energy absorber |
| CN107451347A (en) * | 2017-07-25 | 2017-12-08 | 中南大学 | Induce the Active Control Method of thin-wall pipe energy-absorbing |
| CN109707985A (en) * | 2018-12-06 | 2019-05-03 | 西北工业大学 | Endergonic structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021099116A (en) * | 2019-12-20 | 2021-07-01 | トヨタ自動車株式会社 | Shock absorption member and method of manufacturing shock absorption member |
| JP7264042B2 (en) | 2019-12-20 | 2023-04-25 | トヨタ自動車株式会社 | Manufacturing method of shock absorbing member |
| CN113090694A (en) * | 2021-04-16 | 2021-07-09 | 中山大学 | Energy-absorbing protective device capable of being flexibly disassembled and rapidly expanded |
| CN114857193A (en) * | 2022-04-19 | 2022-08-05 | 福建工程学院 | Clamping groove type thin-walled tube energy absorption system easy to disassemble and assemble and capable of achieving three-dimensional self-locking |
| CN114857193B (en) * | 2022-04-19 | 2023-04-14 | 福建工程学院 | Clamping groove type thin-walled tube energy absorption system easy to disassemble and assemble and capable of achieving three-dimensional self-locking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110263454B (en) | 2021-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110263454A (en) | A kind of thin-walled ball string absorption systems that various dimensions are self-locking | |
| CN103398122B (en) | Easily-assembled self-locking energy-absorbing device of dumbbell-shaped thin-walled-tube structure | |
| CN110145562A (en) | A kind of Bamboo-shaped thin-wall tube structure is easily assembled multidirectional self-locking absorption systems | |
| CN109591743B (en) | Automobile collision energy absorption box capable of efficiently and stably absorbing energy | |
| CN106892314B (en) | A kind of nesting round tube shock resistance multilevel energy absorption plant | |
| CN112158159B (en) | Automobile collision energy absorption box | |
| CN209603017U (en) | A kind of pier anticollision structure | |
| CN101303056A (en) | Combined buffer | |
| CN105184894A (en) | High-energy and strong-impact resistant crash protection element protection method | |
| CN106123710B (en) | The closed spherical anti-explosion container of foam metal sandwich | |
| CN106777813A (en) | A kind of method for improving and controlling Multi-halfwaves Filters energy absorption efficiency | |
| CN105947153A (en) | Layered pressure regulating submersible and manufacturing method thereof | |
| CN211833051U (en) | Helmet based on negative Poisson ratio cellular structure | |
| CN203129348U (en) | Corrugated steel foamed aluminum protection armour for preventing impact of flying projectile objects of nuclear power plant shielding plant | |
| CN202656979U (en) | Thin-wall circular tube energy absorption device | |
| CN106192750A (en) | A kind of cable-girder anchorage zone explosion-proof defense of resistance to impact system and preparation method thereof | |
| CN102673501B (en) | Thin-walled energy-absorbing device | |
| CN110263455A (en) | It is a kind of can the self-locking windmill thin-wall tube structure of multidimensional be easily assembled absorption systems | |
| CN103924701A (en) | Nuclear power plant shield workshop missile impact resisting corrugation steel plate foam aluminum protection armor | |
| CN209320888U (en) | The new automobile energy-absorbing box device of internal special filling | |
| CN110528779A (en) | A kind of excellent stainless steel outer packed hollow sandwich concrete-filled circular steel tube column of crash-worthiness | |
| CN207000378U (en) | A kind of automobile buffer beam with shock-absorbing function | |
| CN215890931U (en) | Self-locking thin-wall tube structure energy absorption system with negative Poisson ratio effect | |
| CN206784261U (en) | A kind of anticollision device of pier | |
| CN109720290B (en) | Energy-absorbing pipe of imitative seagull feather axle structure |
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 |