CN106988241A - Intelligence impact safeguard structure and its application based on STF - Google Patents
Intelligence impact safeguard structure and its application based on STF Download PDFInfo
- Publication number
- CN106988241A CN106988241A CN201710190945.8A CN201710190945A CN106988241A CN 106988241 A CN106988241 A CN 106988241A CN 201710190945 A CN201710190945 A CN 201710190945A CN 106988241 A CN106988241 A CN 106988241A
- Authority
- CN
- China
- Prior art keywords
- stf
- encapsulated layer
- guide rail
- rod mechanism
- installing plate
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 229940113115 polyethylene glycol 200 Drugs 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000013339 cereals Nutrition 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000005543 nano-size silicon particle Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 5
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
Intelligence impact safeguard structure and its application based on STF, and in particular to shock resistance power consumption protection technology field.The structure includes encapsulated layer, installing plate, trip bolt, guide rail, long rotating shaft, multi-connecting-rod mechanism, STF, end plate and sealing ring, the encapsulated layer is internal cavities thin-wall metal component, the installing plate includes guide rail and capping, guide rail is located at installing plate front, the guide rail interior is provided with 4 T-shaped sliding blocks, and the multi-connecting-rod mechanism is by long rotating shaft on T-shaped sliding block；The STF is filled in inside encapsulated layer, and the STF is made up of nano SiO 2 particle and polyethylene glycol 200, and wherein the volume fraction of nano SiO 2 particle is 28%.The present invention is by the way that STF and multi-connecting-rod mechanism are combined; it not only make use of the good energy dissipation behavior that STF has in itself; and utilize the kinetic characteristic of multi-connecting-rod mechanism; the characteristics of with buffer protection superior performance; it can be widely applied to the collision protection field of vehicle, reduction casualties rate and property loss.
Description
Technical field
The present invention relates to shock resistance power consumption protection technology field, and in particular to a kind of intelligent surge guard knot based on STF
Structure and its application.
Background technology
The power of road vehicles, speed and density are continuously increased, and traffic accident is all occurring all the time, and thing
Therefore in collision turn into Loss of Life and property principal element.For the infringement caused by reduction impact, passive protection
Technology is widely used because its is easy and effective.To meet increasingly harsh collision protection demand, new collision protection material and knot
The research and development of structure are always one of study hotspot of engineering field.
STF is a kind of novel intelligent material, and this material is nano granule suspension body, and it is at low shear rates very
It is easily deformed, can be slowly flowed as liquid；Its apparent viscosity occurs significantly to increase and become sticky when by shock loading
It is thick, or even class solid-state is converted into by liquid；Liquid can be recovered rapidly again after impact revocation, with fast response time, invertibity
It is good, the advantages of energy absorbing efficiency is high.But when colliding generation, collision protection material often bears local assault, how in part
It is the key issue for needing to solve at this stage to make STF as much as possible in running order under impact.
The content of the invention
The technical problem of solution：For above-mentioned technical problem, the present invention provides a kind of intelligent surge guard knot based on STF
Structure and its application, impact can make a response automatically to external world, simple with simple in construction, lightweight, maintenance, buffering effect
The features such as rate is high.And shock-absorbing capacity can be easily adjusted according to demand.
Technical scheme：Intelligence impact safeguard structure based on STF, the structure includes encapsulated layer, installing plate, fastening spiral shell
Nail, guide rail, long rotating shaft, multi-connecting-rod mechanism, STF, end plate and sealing ring, the encapsulated layer are that one end is closed, another end opening
Internal cavities thin-wall metal component, installing plate and end plate are connected by trip bolt with encapsulated layer, the installing plate bottom surface and envelope
Dress layer sealed end inner surface connects, and the end plate is located on the outside of encapsulated layer openend inner face, the end plate two ends along level side
To groove is respectively equipped with, sealing ring is provided between the groove and encapsulated layer；The installing plate includes guide rail and capping, the envelope
Installing plate two ends outside in the horizontal direction is covered on, guide rail is provided with 4 T-shaped sliding blocks located at installing plate front, the guide rail interior,
The multi-connecting-rod mechanism by long rotating shaft on the T-shaped sliding block, the multi-connecting-rod mechanism include one group of forward bar being parallel to each other,
One group be parallel to each other reverse bar, short rotating shaft, forward bar and reverse bar are intersecting, and short rotating shaft is located at intersection；
The STF is filled in inside encapsulated layer, and the STF is made up of nano SiO 2 particle and polyethylene glycol 200, its
The volume fraction of middle nano SiO 2 particle is 28%.
Preferably, the forward bar and reverse rod end point of the multi-connecting-rod mechanism are hinged, the either side at place passes through long rotating shaft
Connect with T-shaped sliding block.
Preferably, not touched with the blind end and end plate of encapsulated layer when the multi-connecting-rod mechanism is compressed to maximum displacement
Touch.
Preferably, the guide rail is T-shaped.
Preferably, the micro-pore diameter of the nano SiO 2 particle is in 180-220nm.
Preferably, the STF preparation process is as follows：Take decentralized medium to be put into the ball grinder of planetary ball mill, will divide
Dephasing particle is added batch-wise in planetary ball mill and ground, until reaching required volume fraction content, is fully ground, and disperses
Medium is PEG200, and dispersed phase is nano SiO 2 particle；After grinding terminates, biased sample is subjected to vacuumize process, obtained
To sample.
The application of the intelligence impact safeguard structure in vehicle collision protection field based on STF.
Beneficial effect：It is excellent with buffer protection performance the invention provides a kind of intelligence impact safeguard structure based on STF
More the characteristics of, it can be widely applied to the collision protection field of vehicle, reduction casualties rate and property loss.
STF is compared with other equal quality materials, impact resistance is stronger, the energy of consumption in terms of shock resistance and power consumption
It is more；
Multi-connecting-rod mechanism has multiple choices in material, size and structure arrangement, can meet the demand of different field, closes
Key point is that this kind of mechanism can be so that the STF in encapsulating structure all simultaneously participates in the impact of local a small range.
By the way that STF and multi-connecting-rod mechanism are combined, the good energy dissipation behavior that not only make use of STF to have in itself, and
Using the kinetic characteristic of multi-connecting-rod mechanism, when impacting generation, whole STF of surrounding participation power consumption process can be driven, is carried
High STF utilization ratio so that the surge guard performance of the intelligence structure is greatly improved.
STF has sensitive rapidly reaction to shear strain rate so that structure can be made when being impacted in moment
Go out highly energy-consuming reaction, improve the barrier propterty of structure, also reduce the complexity of total.
Brief description of the drawings
Fig. 1 is intelligence impact safeguard structure schematic diagram；
Fig. 2 impacts safeguard structure A-A to sectional view for intelligence；
Fig. 3 is the axonometric projection graph of multi link motion；
Fig. 4 is the axonometric projection graph of T-shaped sliding block
1 is encapsulated layer in figure, and 2 be installing plate, and 3 be forward bar, and 4 be reverse bar, and 5 be short rotating shaft, and 6 be long rotating shaft, and 7 be T
Shape sliding block, 8 be guide rail, and 9 be trip bolt, and 10 be capping, and 11 be STF, and 12 be end plate, and 13 be sealing ring.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Refering to Fig. 1 and Fig. 2, STF 11 is sealed in the encapsulated layer with many bar motions and forms intelligence structure impact
Safeguard structure.The STF 11 is mixed by nano SiO 2 particle and polyethylene glycol stirring, wherein silica nanometer
The volume fraction of particle is 28%, and micro-pore diameter is in 180-220nm, and its preparation process is as follows：Decentralized medium is taken to be put into planet ball
In the ball grinder of grinding machine, dispersion particle is added batch-wise in planetary ball mill and ground, until reaching required volume integral
Number content, is fully ground, decentralized medium is polyethylene glycol 200, dispersed phase is nano SiO 2 particle；, will after grinding terminates
Biased sample carries out vacuumize process, obtains sample.
Described intelligence impact safeguard structure by encapsulated layer 1, installing plate 2, trip bolt 9, guide rail 8, long rotating shaft 6, connect more
Linkage, STF 11, end plate 12 and sealing ring 13 are constituted, and encapsulated layer 1 is that one end is closed, internal cavities thin-walled of one end open gold
Metal elements.Installing plate 2 and end plate 12 are connected by trip bolt 9 with encapsulated layer 1, and the bottom surface of installing plate 2 and encapsulated layer 1 are closed
End inner surface connects, and the end plate 12 is located on the outside of the openend inner face of encapsulated layer 1, the two ends of end plate 12 to be divided in the horizontal direction
Not She You groove, between the groove and encapsulated layer 1 be provided with sealing ring 13, to prevent the STF in cavity from leaking out；The peace
Filling plate 2 includes guide rail 8 and capping 10, the capping located at installing plate 2 in the horizontal direction on the outside of two ends, can prevent T-shaped sliding block 7 from
Skidded off in guide rail 8.Guide rail 8 is located at the front of installing plate 2, and the guide rail 8 is T-shaped, and the inside of guide rail 8 is provided with 4 T-shaped sliding blocks 7,
The multi-connecting-rod mechanism is by long rotating shaft 6 on T-shaped sliding block 7, and referring to Figures 1 and 2, the long rotating shaft 6 is located at closest lead
Rail and farthest away from the both sides of guide rail forward bar and reverse bar intersection, the multi-connecting-rod mechanism is parallel to each other forward including one group
Bar, one group of reverse bar and short rotating shaft 5 for being parallel to each other, forward bar and reverse bar are intersecting, and short rotating shaft 5 is located at intersection, mutually hinge
Connect to form parallelogram motion mechanism, the blind end with encapsulated layer 1 and end when the multi-connecting-rod mechanism is compressed to maximum displacement
Plate 12 is not touched, is the characteristics of the mechanism, when the outermost any pin joint of multi-connecting-rod mechanism because of collision obtains displacement
When, because each connecting rod intersection is connected by rotating shaft, therefore all rod members in plane can be driven to move in a circle around the shaft, now T
Shape sliding block 7 moves along a straight line in guide rail 8, drives many system of bars to change longitudinal size.Thus, multi-connecting-rod mechanism has overall
Telescopic, and stabilized structure, easy for installation, the STF 11 is filled in inside encapsulated layer 1.
STF is a kind of new shape intellectual material, and this material is nano granule suspension body, and it is at low shear rates very
It is easily deformed, can be slowly flowed as liquid；Its apparent viscosity occurs significantly to increase and become sticky when by shock loading
It is thick, or even class solid-state is converted into by liquid；It can recover rapidly again after impact revocation, with fast response time, good reversibility is inhaled
The advantages such as energy efficiency height.
Intelligence impact safeguard structure operation principle of the present invention：
Refering to Fig. 1, when described intelligence impact safeguard structure collides, collision causes the thin-walled in the outside of encapsulated layer 1
Point of impingement because of metal of the structure on the outside of point of impingement stress, structure is plastically deformed and is recessed, so as to drive the STF11 around pit
Work is participated in, portion of energy is absorbed.Simultaneously as the deformation on the outside of encapsulated layer, any pin joint of multi-connecting-rod mechanism outermost layer because
Outside deforms and obtains displacement, and involving multi link system planar moves so that multi-connecting-rod mechanism has integral telescopic function,
So as to drive larger range of STF to participate in power consumption process.Just because of the intervention of multi-connecting-rod mechanism, improve STF utilizes effect
Rate so that STF energy dissipation performance is greatly improved.
The present invention is a kind of intelligence structure surge guard technology being combined using multi-connecting-rod mechanism and STF, and two dimension to be connected
Linkage is when by external impact, and driving link starts because obtaining energy, so as to cause entirely to be hinged parallel-crank mechanism
Motion, that is, produce ' pulling one hair and move the whole body ' effect.The technical program combines both, not merely with
Good energy absorption characteristics that STF has in itself, and using the kinetic characteristic of multi-connecting-rod mechanism, impact occur when, being capable of band
Almost all STF simultaneously participates in power consumption process in visibly moved device, and energy absorption efficiency is greatly improved.The STF impacts are prevented
Protection structure cost is low, light weight, it is environment-friendly, repeatable utilize, before having wide application in the collision protection field of vehicle
Scape.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (7)
1. the intelligence impact safeguard structure based on STF, it is characterised in that the structure includes encapsulated layer（1）, installing plate（2）, it is tight
Gu screw（9）, guide rail（8）, long rotating shaft（6）, multi-connecting-rod mechanism, STF（11）, end plate（12）And sealing ring（13）, the encapsulation
Layer（1）For one end is closed, another end opening internal cavities thin-wall metal component, installing plate（2）And end plate（12）Pass through fastening
Screw（9）With encapsulated layer（1）Connection, the installing plate（2）Bottom surface and encapsulated layer（1）Sealed end inner surface connects, the end plate
（12）Located at encapsulated layer（1）Openend inner face, the end plate（12）Groove is respectively equipped with the horizontal direction on the outside of two ends, it is described
Groove and encapsulated layer（1）Between be provided with sealing ring（13）；The installing plate（2）Including guide rail（8）And capping（10）, the capping
（10）Located at installing plate（2）In the horizontal direction on the outside of two ends, guide rail（8）Located at installing plate（2）Front, the guide rail（8）It is internal
Provided with 4 T-shaped sliding blocks（7）, the multi-connecting-rod mechanism passes through long rotating shaft（6）Located at T-shaped sliding block（7）On, the multi-connecting-rod mechanism
The reverse bar and short rotating shaft being parallel to each other including one group of forward bar being parallel to each other, one group（5）, forward bar and reverse bar are intersecting,
Short rotating shaft（5）Located at intersection；
The STF（11）It is filled in encapsulated layer（1）Inside, the STF（11）By nano SiO 2 particle and polyethylene glycol 200
Composition, the wherein volume fraction of nano SiO 2 particle are 28%.
2. the intelligence impact safeguard structure according to claim 1 based on STF, it is characterised in that the multi-connecting-rod mechanism
Forward bar and the be hinged either side at place of reverse rod end point pass through long rotating shaft（6）With T-shaped sliding block（7）Connect.
3. the intelligence impact safeguard structure according to claim 1 based on STF, it is characterised in that the multi-connecting-rod mechanism
When being compressed to maximum displacement and encapsulated layer（1）Blind end and end plate（12）Do not touch.
4. the intelligence impact safeguard structure according to claim 1 based on STF, it is characterised in that the guide rail（8）For T
Shape.
5. the intelligence impact safeguard structure according to claim 1 based on STF, it is characterised in that the silica is received
The micro-pore diameter of rice grain is in 180-220 nm.
6. the intelligence impact safeguard structure according to claim 1 based on STF, it is characterised in that the STF preparation process
It is as follows：Take decentralized medium to be put into the ball grinder of planetary ball mill, dispersion particle is added batch-wise in planetary ball mill
Grinding, until reaching required volume fraction content, is fully ground, decentralized medium is polyethylene glycol 200, dispersed phase is titanium dioxide
Nano silicon particles；After grinding terminates, biased sample is subjected to vacuumize process, sample is obtained.
7. the application based on structure described in claim 1 in vehicle collision protection field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190945.8A CN106988241B (en) | 2017-03-24 | 2017-03-24 | Surge guard structure and its application based on STF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190945.8A CN106988241B (en) | 2017-03-24 | 2017-03-24 | Surge guard structure and its application based on STF |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106988241A true CN106988241A (en) | 2017-07-28 |
| CN106988241B CN106988241B (en) | 2019-06-04 |
Family
ID=59412987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710190945.8A Expired - Fee Related CN106988241B (en) | 2017-03-24 | 2017-03-24 | Surge guard structure and its application based on STF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106988241B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488305A (en) * | 2018-06-20 | 2018-09-04 | 上海理工大学 | A kind of band thickening fluid elastic collision damper |
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| CN202987032U (en) * | 2012-12-18 | 2013-06-12 | 北京汽车股份有限公司 | Vehicle bumper and vehicle |
| CN104457429A (en) * | 2014-10-11 | 2015-03-25 | 中物功能材料研究院有限公司 | Fluid barrier material and preparing method of fluid barrier material |
| CN104799470A (en) * | 2015-05-08 | 2015-07-29 | 武汉理工大学 | Novel protection safety cap |
| CN104864025A (en) * | 2015-04-01 | 2015-08-26 | 武汉理工大学 | Intelligent protective composite material |
-
2017
- 2017-03-24 CN CN201710190945.8A patent/CN106988241B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140151A (en) * | 2007-09-20 | 2008-03-12 | 高轶夫 | Bulletproof stabbed prevention dress with liquid stage material |
| EP2221863A1 (en) * | 2009-02-19 | 2010-08-25 | Empire Technology Development LLC | Integrated circuit nanowires |
| CN202987035U (en) * | 2012-12-18 | 2013-06-12 | 北京汽车股份有限公司 | Vehicle door anti-collision beam and vehicle |
| CN202987032U (en) * | 2012-12-18 | 2013-06-12 | 北京汽车股份有限公司 | Vehicle bumper and vehicle |
| CN104457429A (en) * | 2014-10-11 | 2015-03-25 | 中物功能材料研究院有限公司 | Fluid barrier material and preparing method of fluid barrier material |
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| CN104799470A (en) * | 2015-05-08 | 2015-07-29 | 武汉理工大学 | Novel protection safety cap |
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| CN108488305A (en) * | 2018-06-20 | 2018-09-04 | 上海理工大学 | A kind of band thickening fluid elastic collision damper |
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| Publication number | Publication date |
|---|---|
| CN106988241B (en) | 2019-06-04 |
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