CN104071313A - Anti-shock energy-absorbing covering layer capable of elastically bending - Google Patents
Anti-shock energy-absorbing covering layer capable of elastically bending Download PDFInfo
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- CN104071313A CN104071313A CN201410282915.6A CN201410282915A CN104071313A CN 104071313 A CN104071313 A CN 104071313A CN 201410282915 A CN201410282915 A CN 201410282915A CN 104071313 A CN104071313 A CN 104071313A
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Abstract
The invention discloses an anti-shock energy-absorbing covering layer capable of elastically bending. The covering layer comprises a rubber basal body, foamy energy-absorbing bodies, an energy-absorbing body coat, an upper coat of a covering layer and a lower coat of the covering layer, wherein a plurality of foamy energy-absorbing bodies are contained in the rubber basal body, and the energy-absorbing body coat covers on the foamy energy-absorbing bodies; the upper coat of the covering layer is arranged on the upper surface of the rubber basal body, and the lower coat of the covering layer is arranged on the lower surface of the rubber basal body. The distributing manner of the energy-absorbing structure in the covering layer disclosed by the invention can be controlled, the maximization of energy absorption is realized, and at the same time, the whole covering layer has the characteristic of limited elastic bending, so that the effective attaching to the complex curved surface of the structure is easy to realize, and the covering layer has good functionality and manufacturability.
Description
Technical field
The present invention relates to a kind of overplate, particularly relate to a kind of anti-impact energy-absorbing overplate that can elastic bending.
Background technology
Along with China deep-sea strategy development in recent years, a large amount of naval vessels and ocean structure, in navigation and life-cycle operational process, may be subject to the load from underwater blast thing and exotic shock.This class impact load has sudden conventionally, and energy is huge, is easy to naval vessel and ocean structure to cause huge damage, thereby brings immeasurable loss.Therefore, in advance for naval vessel and ocean structure take corresponding surge guard measure to seem very necessary.
Through the retrieval of prior art is found, after " World War I ", " JulioCaesarea " of Italian Navy in 1938 number and nineteen forty-three United States Navy the battleship such as " owa " number, just increased specially lightning protection cabin at topside, and adopted reinforcement hull and built the means such as multilayer cabin.Take after protection Design measure, can effectively resist the submarine mine of 300-400 kilogram of TNT equivalent.But the significant shortcoming of these measures for the prevention of explosion is that construction and construction are complicated, needs to arrange the no man's land of 5-6m simultaneously, has wasted a large amount of expensive real estate, on Modern Ships, seldom adopts.
Advanced double-deck hull (Advanced Double Hull) be the late nineteen eighties the U.S. start one of new ideas hull design of assessment.Main body comprises internal layer hull and outer hull, is connected between the two by longitudinal web.All members of ADH are unidirectional, all along the length direction of hull.The horizontal reinforcement structure of tradition hull is also replaced by the next door of level.Compare with traditional hull structure, an outstanding advantages of this hull is the ability of its opposing underwater blast and the external impact load such as hit a submerged reef.Owing to having abandoned horizontal reinforcement structure and vertical pillar, while making hull bottom structure be subject to impact load, there is larger deformation space.And between the two-layer hull of bottom, formed sandwich structure, thus in the time of outer hull and sandwich layer generation plastic deformation, absorb impact energy, thus internal layer hull protected, avoid whole ship to sustain damage.
Sandwich sandwich (sandwich) structure extending out from double-deck hull there is good antiknock and the application prospect of impact resistance.The base model of sandwich construction is the panel that two-layer intensity is higher (face panel) and is clipped in sandwich layer (core) wherein.According to different performance requirements, the material of sandwich layer and version can be diversified.The lattice truss (lattice truss) being mainly made up of metal as sandwich layer or corrugated plating (corrugated plate) form, sandwich layer are form of foam metal and full composite material etc.This class formation has advantages of that impact property is strong, but because its manufacturing processing technic is very complicated, with high costs, and after distortion, be difficult to repair, yet there are no the application on actual naval vessel and ocean structure.In addition, as also very difficult in reequiped existing structure, in technique, be difficult to carry out.
Since two thousand four, applicant has carried out research for a kind of rubber super-elasticity interlayer honeycomb structure that can be laid on naval vessel shell.Theoretical analysis and test results show, this overplate is in the time being subject to slight and moderate impact load, and protection effect is good.The large deformation that its basic role mechanism produces while being the rubber thin-walled pressurized flexing by the middle of overplate forms the stress plateau phase, reduce momentum impact loading row buffering, thereby effectively the impulsive force of reducing effect in main structure is effectively protected main structure.Compare with metal construction, this structure main material is elastomeric material, has the ability that can recover large elastic deformation.And during fabrication, can adopt the cast of mould monoblock to form, and then by bonding hull or the structural outer surface of being cemented in of special gelatin, technique comparative maturity.Rubber porous overplate is more as shown in table 1 with the merits and faults of metal sandwich structure.
Table 1
Can find out, this two class formation respectively has advantage, rubber covering layer good manufacturability, be easy to have in complex-curved structure lay, with low cost and be easy to repair; And the energy absorption characteristics of metal clip cored structure is good, resistance to intense explosion and bump stroke.Equally, two class formations have again shortcoming separately, as relatively low in rubber structure energy-absorbing level, and the manufacturability of metal construction is very poor, are difficult in actual applications at present construction.Therefore, how to design a kind of novel antiknock collision protection structure, effective apparatus with shock absorbing should realize it and be subject to impact load time; protection main structure; will ensure the manufacturability that it is good simultaneously, can realize effectively laminating to the curved surface of the complex contours such as naval vessel, be the key point of dealing with problems.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of anti-impact energy-absorbing overplate that can elastic bending, it can control the distribution mode of the inner endergonic structure of overplate, realize the maximization of energy absorbing, simultaneously monoblock overplate has feature that can finite elasticity bending, thereby be relatively easy to realize effectively the pasting of complex structure curved surface, and have good functional and manufacturability concurrently.
The present invention solves above-mentioned technical matters by following technical proposals: a kind of anti-impact energy-absorbing overplate that can elastic bending, it is characterized in that, it comprises rubber matrix, foam energy-absorbing body, energy-absorbing body surface skin, overplate epicuticle, overplate lower epidermis, multiple foam energy-absorbing bodies are contained in rubber matrix inside, foam energy-absorbing surface is covered with energy-absorbing body surface skin, rubber matrix upper surface is provided with overplate epicuticle, and rubber matrix lower surface is provided with overplate lower epidermis.
Preferably, described overplate epicuticle, overplate lower epidermis are all the composite bed of the nylon chain line intersection composition of 1-2mm thickness.
Preferably, described foam energy-absorbing body need adopt metal or themoplasticity open celled foam is prefabricated forms, being shaped as of single foam energy-absorbing body is spherical or without the cylindrical shape of wedge angle, need ensure to lay two to three layers at tectal thickness direction, and need ensure that at Width the distance between single energy-absorbing body is not less than 5 millimeters.
Preferably, described energy-absorbing body surface skin is made up of thin-walled non-metallic material.
Preferably, described thin-walled non-metallic material is nylon cloth or canvas.
Positive progressive effect of the present invention is: the present invention can control the distribution mode of the inner endergonic structure of overplate; overplate is protected main structure by compressing inner foam energy-absorbing body generation plastic deformation apparatus with shock absorbing in the time being subject to impact load; realize the maximization of energy absorbing; simultaneously monoblock overplate has feature that can finite elasticity bending; thereby be relatively easy to realize effectively the pasting of complex structure curved surface, and have good functional and manufacturability concurrently.The large deformation energy absorption characteristics that the present invention has had rubber hyper-elastic deformation ability and foam energy-absorbing body concurrently separately a little.Being exploded and when bump stroke, due to the compressive characteristics hardly of rubber matrix, can producing extruding and force inner energy-absorbing body to deform, absorb energy.Its S. E. A. is much larger than the rubber structure of equal volume.On the one hand, in the time carrying out complex-curved installation, monoblock watt is subject to bending compression in order, now energy-absorbing body can not be out of shape, rubber matrix can be out of shape and the complex-curved good fit that realizes by integrally bending, and because the modulus of rubber is little, the unrelieved stress after laying can be in lower level.
Brief description of the drawings
Fig. 1 is the tectal structural representation of anti-impact energy-absorbing that the present invention can elastic bending.
Fig. 2 is the schematic diagram that the present invention is laid on body structure surface while specifically using.
Detailed description of the invention
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As depicted in figs. 1 and 2, the present invention can elastic bending anti-impact energy-absorbing overplate comprise rubber matrix 1, foam energy-absorbing body 2, energy-absorbing body surface skin 3, overplate epicuticle 4, overplate lower epidermis 5, multiple foam energy-absorbing bodies 2 are contained in rubber matrix 1 inside, foam energy-absorbing body 2 surfaces are covered with energy-absorbing body surface skin 3, rubber matrix 1 upper surface is provided with overplate epicuticle 4, and rubber matrix 1 lower surface is provided with overplate lower epidermis 5.Overplate epicuticle 4, overplate lower epidermis 5 are all the composite bed of the nylon chain line intersection composition of 1-2mm thickness.Foam energy-absorbing body 2 needs to adopt metals or themoplasticity open celled foam is prefabricated forms, being shaped as of single foam energy-absorbing body 2 is spherical or without the cylindrical shape of wedge angle, need ensure to lay two to three layers at tectal thickness direction, and need ensure that at Width the distance between single energy-absorbing body is not less than 5 millimeters.
Wherein, rubber matrix 1, as tectal main carriers, is mainly used in wrapping up foam energy-absorbing body 2, and in the time that monoblock overplate is subject to bending, distortion is mainly realized by the flexural deformation of rubber matrix 1 simultaneously.Foam energy-absorbing body 2, in the time being compressed, being caved in and is realized the absorption of energy by the plasticity of foam wall, is endergonic structure main while being subject to impact load.Energy-absorbing body surface skin 3 is made up of thin-walled non-metallic material, and described thin-walled non-metallic material is nylon cloth or canvas, and main application is in the time of monoblock watt moulding by casting, prevents that liquid rubber from flowing into perforate.Overplate epicuticle 4 is vulcanized to tectal epicuticle when the global formation by nylon fiber, because it has good toughness, can prevent that breakage from appearring in overplate top layer in the time being subject to smaller scratching.Overplate lower epidermis 5 has fiber sulfuration to form equally, and radical function is the strong bond ensureing between overplate and Structural layer 6, is not easy to occur that come unstuck in part or opening.
The tectal occupation mode of anti-impact energy-absorbing that can elastic bending as shown in Figure 2.Structural layer 6 surfaces are carried out, after sanding and polishing, coating lining cement 9, and anti-impact energy-absorbing overplate 7 that then can elastic bending fastens on Structural layer 6 by corresponding frock, then treats that it solidifies.Finally in the gap between can the anti-impact energy-absorbing overplate 7 of elastic bending, fill out putty 8 at each, to ensure that total surface, laying after energy-absorbing overplate, does not affect its hydrodynamic performance.
When Structural layer 6 is exploded or when impact load, impact load can act on overplate epicuticle 4, rubber matrix 1 that can compression overplate inside after 4 distortion of overplate epicuticle, due to the compressive characteristics hardly of rubber matrix 1, can produce equal-volume distortion.The hydrostatic pressure load of equal-volume distortion can be delivered to rapidly energy-absorbing body surface skin 3, then further the metal foam (such as copper foam or aluminum foam) of layer-by-layer contraction energy-absorbing body surface intracutaneous portion or the foam energy-absorbing body 2 of isocyanurate foam.Foam energy-absorbing body 2 is very effective lightweight energy-absorbing bodies; the stress plateau phase producing while compression by it; can form a large energy-absorbing interval; impact energy was decayed greatly before being delivered to lower floor's epidermis; in the time that impact energy is delivered in main structure by lower floor's epidermis; reduce greatly impact load stress because the existing temporary impact load of in-service time is converted into amplitude, this makes main structure be subject to good protection.The present invention, taking rubber as matrix, by embedded distributed metal foam body, in the time being subject to underwater blast and bump stroke, by interior metal foams plastic deformation apparatus with shock absorbing, thereby reaches the object of sacrificing overplate and protect main structure.Meanwhile, by the distortion of base rubber, make overplate can realize limited elastic bending deflection, be easy to stick thering is complex-curved body structure surface.
Above-described specific embodiment; technical matters, technical scheme and beneficial effect to solution of the present invention further describe; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
- One kind can elastic bending anti-impact energy-absorbing overplate, it is characterized in that, it comprises rubber matrix, foam energy-absorbing body, energy-absorbing body surface skin, overplate epicuticle, overplate lower epidermis, multiple foam energy-absorbing bodies are contained in rubber matrix inside, foam energy-absorbing surface is covered with energy-absorbing body surface skin, rubber matrix upper surface is provided with overplate epicuticle, and rubber matrix lower surface is provided with overplate lower epidermis.
- 2. anti-impact energy-absorbing overplate that can elastic bending as claimed in claim 1, is characterized in that, described overplate epicuticle, overplate lower epidermis are all that the nylon chain line of 1-2mm thickness intersects the composite bed of composition.
- 3. anti-impact energy-absorbing overplate that can elastic bending as claimed in claim 1, it is characterized in that, described foam energy-absorbing body need adopt metal or themoplasticity open celled foam is prefabricated forms, being shaped as of single foam energy-absorbing body is spherical or without the cylindrical shape of wedge angle, need ensure to lay two to three layers at tectal thickness direction, and need ensure that at Width the distance between single energy-absorbing body is not less than 5 millimeters.
- 4. anti-impact energy-absorbing overplate that can elastic bending as claimed in claim 1, is characterized in that, described energy-absorbing body surface skin is made up of thin-walled non-metallic material.
- 5. anti-impact energy-absorbing overplate that can elastic bending as claimed in claim 4, is characterized in that, described thin-walled non-metallic material is nylon cloth or canvas.
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| CN201410282915.6A CN104071313B (en) | 2014-06-23 | 2014-06-23 | Elastically bendable anti-impact energy-absorbing cover layer |
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| CN201410282915.6A CN104071313B (en) | 2014-06-23 | 2014-06-23 | Elastically bendable anti-impact energy-absorbing cover layer |
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| CN104071313B CN104071313B (en) | 2016-09-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105128462A (en) * | 2015-08-03 | 2015-12-09 | 无锡市东北塘永丰橡塑厂 | High-toughness rubber mat |
| CN106114776A (en) * | 2016-06-30 | 2016-11-16 | 大连理工大学 | The crashproof antifreeze composite construction of concavo-convex point-type topside |
| CN108545159A (en) * | 2018-03-22 | 2018-09-18 | 上海交通大学 | Gradient pressure resistance anti-impact energy-absorbing coating and pressure-resistant anti-impact absorption systems |
| CN113752647A (en) * | 2021-09-06 | 2021-12-07 | 北京理工大学 | Sensor protection device for real ship target shooting test |
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| CN2727289Y (en) * | 2004-08-11 | 2005-09-21 | 东北大学 | Foamed aluminum curtain wall plate |
| CN201291998Y (en) * | 2008-10-10 | 2009-08-19 | 无锡市鸿声船用玻璃钢有限公司 | Collision prevention traffic boat |
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| CN103009685A (en) * | 2012-12-26 | 2013-04-03 | 官宇寰 | Novel anti-impact light interlayer structure |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE334040C (en) * | 1919-06-19 | 1921-03-10 | Carel Joseph Jacob Louis De Vo | boat |
| JP2003071861A (en) * | 2001-09-07 | 2003-03-12 | Kuraray Co Ltd | Locking member for in-mold molding and method for manufacturing resin molded body |
| CN2547631Y (en) * | 2002-05-23 | 2003-04-30 | 崔光惠 | Hull having isolated protective layer on surface |
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| CN102616335A (en) * | 2012-04-01 | 2012-08-01 | 深圳市海斯比船艇科技股份有限公司 | Composite material improved metal ship, protective structure thereof and manufacturing method of protective structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128462A (en) * | 2015-08-03 | 2015-12-09 | 无锡市东北塘永丰橡塑厂 | High-toughness rubber mat |
| CN106114776A (en) * | 2016-06-30 | 2016-11-16 | 大连理工大学 | The crashproof antifreeze composite construction of concavo-convex point-type topside |
| CN106114776B (en) * | 2016-06-30 | 2018-03-13 | 大连理工大学 | The concavo-convex antifreeze composite construction of point-type topside anticollision |
| CN108545159A (en) * | 2018-03-22 | 2018-09-18 | 上海交通大学 | Gradient pressure resistance anti-impact energy-absorbing coating and pressure-resistant anti-impact absorption systems |
| CN108545159B (en) * | 2018-03-22 | 2019-11-01 | 上海交通大学 | Gradient pressure resistance anti-impact energy-absorbing coating and pressure-resistant anti-impact absorption systems |
| CN113752647A (en) * | 2021-09-06 | 2021-12-07 | 北京理工大学 | Sensor protection device for real ship target shooting test |
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| Publication number | Publication date |
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| CN104071313B (en) | 2016-09-07 |
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