CN207922974U - Safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer - Google Patents
Safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer Download PDFInfo
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- CN207922974U CN207922974U CN201820325450.1U CN201820325450U CN207922974U CN 207922974 U CN207922974 U CN 207922974U CN 201820325450 U CN201820325450 U CN 201820325450U CN 207922974 U CN207922974 U CN 207922974U
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Abstract
Safeguard structure the utility model discloses multilayer curved surface column born of the same parents as blast impulse absorbing energy layer, including structured base layer, it is characterised in that：In front of the structured base layer towards shock wave direction of transfer, it is provided with energy-absorbing safeguard function layer, the energy-absorbing safeguard function layer, including panel and column born of the same parents' structural unit, several columns born of the same parents' structural unit is arranged in panel inner face；Column born of the same parents' structural unit is curved body.The safeguard structure of the utility model, under stack pile size condition, multistage deformation energy-absorbing, energy-absorbing density is high；Multiple-layer stacked curved body structure has more deformable structure bodies, under impact load within the scope of same thickness, it is transmitted by the load of panel, multilayer curved body deforms gradually absorbs energy, and energy-absorbing efficiency ratio single layer structure significantly increases, and the energy-absorbing density under condition of equivalent thickness is high；The structured base layer front born of the same parents' structure of column containing effective energy-absorbing enhances explosion-proof impact property, significantly increases the protective action to engineering；The modes such as welding, riveting, bonding, build-in may be used in the assembling of opposite spherical shell, are easy to carry out industrialized production.
Description
Technical field
The utility model is related to engineering protection structures, and especially the born of the same parents' structure of column containing effective energy-absorbing is to enhance explosion-proof impact
Safeguard structure of the multilayer curved surface column born of the same parents of energy as blast impulse absorbing energy layer.
Background technology
Safeguard structure is located at engineering oral area, such as protective door, is that prevent explosion wave from passing to technical interior most important
Safeguard.Different from nuclear explosion load, attenuation ratio nuclear explosion load is much faster in the medium for traditional bomb load（With distance
Cube it is directly proportional）, and action time is short, the general action time between several milliseconds to more than ten milliseconds, there is early stage to load
Rapidly, the features such as radio-frequency component is abundant, blast wave wavelength is short.《The anti-nuclear weapon code for structural design of protection works》Regulation is prevented
The rebound of protection structure is calculated by the reversed dead loads of 0.03-0.05MPa.Analysis shows under conventional weapon shock
Safeguard structure bounce is much larger than this.Improve safeguard structure protective capacities be usually improve structured base layer structural strength with just
Degree, to obtain the higher drag of shock wave load.But this method also increases the weight of structured base layer, opens difficulty and adds
Greatly, while to rebound effect inhibit unsatisfactory.And impact can be consumed by being added in traditional high-strength structure base layer structure
The absorbing energy layer of wave energy and a kind of effective reinforcement means, principle are irreversible by energy-absorbing material in absorbing energy layer itself
It is plastically deformed the explosion impact energy that effectively dissipates, to significantly decrease the peak value of Dynamic load of nuclear blast, alleviates shock wave rebound
The structure safety of safeguard structure is protected in destruction of the effect to structured base layer.
Column born of the same parents structure energy-absorbing function layer is arranged in array by several column born of the same parents structural units, and higher-strength is arranged on its surface
Panel is constituted.Column born of the same parents' unit is the hollow curved body being fabricated to using thin-wall metal etc., is that one kind being suitable for explosion wave etc.
Inexpensive, the efficient endergonic structure of high strain-rate load.Column born of the same parents' structure energy-absorbing function layer by arranging according to certain rules
Column born of the same parents' unit forms, and in upper and lower compound one layer of thin panel.Panel material has higher flexural strength and tensile strength, energy
Tensile or Compressive Loading in the face caused by moment of flexure is enough born, ensures that composite material has higher bearing strength.Column born of the same parents' structural unit exists
Under Impact Load, shock strength is effectively unloaded by being significantly plastically deformed, to achieve the effect that energy-absorbing buffering.
It has many advantages, such as that large deformation carrying is stablized, deformation time is long, compression range is long under Blast Loads, and can pass through filling
The porous materials such as polyurethane foam, foamed aluminium significantly improve energy absorption performance.
Above-mentioned square tube, pipe, the be badly deformed energy-absorbing value of column born of the same parents' unit of more born of the same parents/honeycombs are high, but there are a changes
Shape load " threshold value " --- i.e. for column born of the same parents' unit of a certain determination, applied shock load must reach on certain numerical value, should
Column born of the same parents unit can be just plastically deformed, to realize the absorption of impact energy.Otherwise column born of the same parents unit is to applied shock lotus
Load can only play load, intermal force, cannot play energy-absorbing function substantially.But its peak value may not be able to reach pipe deformation energy-absorbing
" threshold value " leads to pipe and indeformable energy-absorbing, so that integral energy-absorbing structure energy absorbing efficiency cannot be not fully exerted, energy-absorbing
Efficiency significantly reduces.
Square tube and pipe etc. and hollow cone, the combined column born of the same parents unit of spherical shell are commonly referred to as geometry unit.Mesh
It is energy-absorbing unit that hollow metal cylinder body+conulite+spherical shell structure is combined that preceding research is more.Studies have shown that in axis
The energy absorption performance of this combination geometric configuration is higher than formed two parts configuration respectively energy absorption capacity under to Impact Load
The sum of can, and as axial impact speed increases, the energy absorption performance for combining geometric configuration is also continuously improved.
This structure can be largely overcoming limitation of the column born of the same parents' element deformation energy-absorbing to impact load " threshold value ".But
It is that there are problems to be：First, spatial geometric shape is more complex, preparation process is complicated, processing difficulties, and cost is higher；Second is that appointing right
There are larger load " threshold value " limitations：If it is hemispherical Shell+pipe combination, energy-absorbing value is very big under the state that is badly deformed,
But in Practical Project, since the characteristics of impact load is that action time is short, the then rapid decaying greatly of initial stage load.Therefore, when
After hemispherical Shell deforms energy-absorbing first, due to reducing rapidly for impact load energy, load peak value may not be able to reach pipe deformation
Energy-absorbing " threshold value " leads to pipe and indeformable energy-absorbing, so that integral energy-absorbing structure energy absorbing efficiency cannot be not fully exerted,
Energy absorbing efficiency significantly reduces.
Invention content
The utility model is directed to the above-mentioned deficiency of the prior art, provides a kind of multilayer curved surface column born of the same parents as blast impulse energy-absorbing
The safeguard structure of layer；Have the advantages that progressive energy-absorbing, enhances explosion-proof impact property, significantly increase the protective action to engineering.
The technical solution of the utility model：Safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer, including knot
Structure base, it is characterised in that：In the one side of structured base layer, it is provided with energy-absorbing safeguard function layer, the energy-absorbing safeguard function layer, packet
Panel and column born of the same parents' structural unit are included, several columns born of the same parents' structural unit is arranged in panel inner face；Column born of the same parents' structural unit is curved body.
Further feature is：It is prefabricated into a single integrated structure between the column born of the same parents structural unit and panel, form prefabricated post
Born of the same parents' structure absorbing energy layer module.
Column born of the same parents' structural unit is single layer thin-walled hollow curved-surface structure.
Column born of the same parents' structural unit is multilayer thin-walled hollow curved surface overlaying structure.
The column born of the same parents structural unit, by first surface body, the second curved body, third curved body, the 4th song being arranged in order
Face body is superimposed composition in the same direction, and first surface body is located at upper end, and the upper end of outer surface and the medial surface of panel connect, first surface
Body, the second curved body, third curved body, the 4th bodily form of curved surface are at encirclement structure.
Between gap between upper and lower adjacent two pieces of curved bodies of each column born of the same parents' structural unit, packing material is added.
The panel and column born of the same parents' structural unit, are metal material or non-metallic material；The two material is identical, or different.
The safeguard structure of the utility model has following feature compared with the existing technology：
1, under stack pile size condition, multistage deformation energy-absorbing, energy-absorbing density height.By the core filled composite material for deforming energy-absorbing
Energy-absorbing efficiency is restricted by Impact Load lower structure deformation extent, and deformable structure body is more, and deformation extent is bigger, then inhales
Energy efficiency is higher.Multiple-layer stacked curved body structure has more deformable structure bodies within the scope of same thickness.In impact lotus
It under load, is transmitted by the load of panel, multilayer curved body deforms gradually absorbs energy, and energy-absorbing efficiency ratio single layer structure significantly increases
Greatly, the energy-absorbing density under condition of equivalent thickness is high.
2, multilayer curved body deformation has the advantages that progressive energy-absorbing, its deformation energy-absorbing of spherical shell column born of the same parents structure does not have a threshold value, i.e., by
Will be deformed to impact load, and power-deformation characteristics have it is gradual, all for different types of shock and vibration load
It can be deformed by column cell space and absorb energy.Meanwhile deform in endergonic process, column born of the same parents' structure absorb impact the internal stress of load with
Deformation gradually increases, and is not in larger internal stress peak value.
3, structured base layer front column containing effective energy-absorbing born of the same parents structure enhances explosion-proof impact property, significantly increases to engineering
Protective action.
4, easy to process.Compared to the complex space curved surfaces of fabricated structure, Loadings On Hemispherical Shell may be used punching press, pour into a mould, cut
It techniques, the assembling of opposite spherical shell such as cuts and the modes such as welding, riveting, bonding, build-in may be used, be easy to carry out industrialized production.
Description of the drawings
Fig. 1 is the utility model safeguard structure structural schematic diagram；
Fig. 2 is the utility model safeguard structure mounting structure schematic diagram；
Fig. 3 the utility model column born of the same parents' cellular construction arrangement mode structural schematic diagrams；
Fig. 4 is the utility model column born of the same parents' Floor 4, Unit overlaying structure schematic diagram；
Fig. 5 is the utility model column born of the same parents' unit single layer thin-walled hollow curved-surface structure schematic diagram；
Fig. 6 is displacement timeamplitude map among different explosive load lower steel plate safeguard structure structures.
Specific implementation mode
As shown in Figure 1, 2, safeguard structure of the utility model multilayer curved surface column born of the same parents as blast impulse absorbing energy layer, including knot
Structure base 1, the structured base layer 1 are the basal layers of engineering protection structure, can be engineering protection doors, are arranged in engineering entrance,
The novel protective structure that typically flexible protective layer is combined with rigid protection layer, rigid protection layer be reinforced concrete structure,
Steel construction, ladle concrete, or using steel construction, reinforced concrete structure etc. as the safeguard structure of protection basal body structure, prevent
It protects basal body structure to prepare using high strength steel, armored concrete or composite material, there is higher structural strength and rigidity, play
The function of structural support effect and shock wave resistance loaded deformation.
The improvement of the utility model is the one side in structured base layer 1, and typically positive, i.e., structured base layer 1 is towards outside
Lateral surface is provided with energy-absorbing safeguard function layer 2, the energy-absorbing safeguard function layer 2, including panel 3 and column born of the same parents structural unit 4, if
Dry rule or the column born of the same parents structural unit 4 of irregular alignment are arranged in 3 inner face of panel；The front of structured base layer 1 is met to explosion
Shock motion face excellent protective action is played, enhancing is anti-using 4 energy efficient absorption blast impulse energy of column born of the same parents structural unit
Blast impulse performance significantly increases the protective action to 1 subsequent engineering of structured base layer.
, can be with prefabricated into a single integrated structure between the column born of the same parents structural unit 4 and panel 3, formation prefabricated post born of the same parents' structure is inhaled
Ergosphere module is mounted on the front of structured base layer 1；Can also split settings, install respectively.
Structured base layer 1 is arranged on door body 5, can be arranged with rotary type, the inlet of engineering is mounted on, to technical interior
It is protected.The impact force outside engineering is indicated shown in Fig. 2 arrows（Explosive forces）Direction, act on structured base layer 1.
As shown in figure 3, the column born of the same parents structural unit 4 of the utility model, several, are laterally multiple proper alignments, Zong Xiangwei
Multiple rows of proper alignment.Column born of the same parents structural unit 4 is curved body, if shape is hemispheric Loadings On Hemispherical Shell or curved shape, as conventional
Parabola, quadratic function curve etc. are relatively also easy to produce larger plastic deformation under Dynamic load of nuclear blast effect.
Panel 3 is metal material or non-metallic material, the composite wood prepared such as fiber reinforcement high-molecular organic material
Material, loading end of the panel with higher-strength as Dynamic load of nuclear blast；Column born of the same parents structural unit 4 is metal material or non-gold
Belong to material, such as fiber reinforcement high-molecular organic material or high-molecular organic material；Panel 3 and column born of the same parents structural unit 4, the two material
Can be identical, or it is different.The Loadings On Hemispherical Shell of column born of the same parents structural unit 4 can be thin-walled hollow Loadings On Hemispherical Shell（As shown in Figure 5）,
It can also be thin-walled hollow semicircle tube body.The open end of column born of the same parents structural unit 4 or the curved surface top of outer surface and panel 3 it
Between, it is attached by welding, riveting or bonding etc.；Column born of the same parents structural unit 4 can also be with the whole side such as punching press or casting of panel 3
Formula machine-shaping, becomes one structure.
As shown in Figure 4,5, column born of the same parents structural unit 4 can be single layer thin-walled hollow curved-surface structure, can also be multilayer thin-walled
Hollow curved surface overlaying structure forms multiple-layer stacked curved surface multistage energy-absorption type column born of the same parents' structure.Multiple-layer stacked curved surface multistage energy-absorption type column
Born of the same parents' structure is connected and composed by multiple thin-walled hollow curved-surface structures.Connection type be multilayer curved body be superimposed in the same direction, curved body it
Between have certain interval, coincided by the axis on curved body vertex.
The column born of the same parents structural unit 4 of the utility model, by the first surface body 41, the second curved body 42, third being arranged in order
Superposition is constituted in the same direction for curved body 43, the 4th curved body 44, and first surface body 41 is located at upper end, the upper end of outer surface（Curved surface top
Point）With the medial surface of panel 3（Lower surface）Connection, first surface body 41, the second curved body 42, third curved body the 43, the 4th are bent
Face body 44, which is formed, surrounds structure, and third curved body 43 surrounds the 4th curved body 44, and the second curved body 42 surrounds third curved body 43
With the 4th curved body 44, first surface body 41 surrounds the second curved body 42, third curved body 43 and the 4th curved body 44.First is bent
The center line coincidence of face body 41, the second curved body 42, third curved body 43, the 4th curved body 44.
The polylith curved body for constituting column born of the same parents structural unit 4 can be same radius of curvature, can also be curvature radius.Often
Gap between upper and lower adjacent two pieces of curved bodies of a column born of the same parents structural unit 4（Hole）Between, packing material is added, can fill out
Enter metal, non-metallic filler material, to improve its energy-absorbing efficiency.
As shown in figure 5, displacement timeamplitude map among different explosive load lower steel plate safeguard structure structures, can therefrom see
Going out, structured base layer deformation obviously becomes smaller, and the direction displacement for the generation that especially rebounds significantly reduces, and enhances explosion-proof impact property,
Significantly increase the protective action to engineering.
Finally, it should be noted that above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application technology
Scheme, although applicant is described in detail the utility model with reference to preferred embodiment, those skilled in the art
It should be appreciated that those are modified or replaced equivalently the technical solution of the utility model, without departing from the technical program
Objective and range should all cover in the right of the utility model.
Claims (7)
1. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer, including structured base layer（1）, it is characterised in that：
Structured base layer（1）One side, be provided with energy-absorbing safeguard function layer（2）, the energy-absorbing safeguard function layer（2）, including panel（3）With
Column born of the same parents' structural unit（4）, several columns born of the same parents' structural unit（4）It is arranged in panel（3）Inner face；Column born of the same parents' structural unit（4）For curved surface
Body.
2. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer according to claim 1, it is characterised in that：Institute
The column born of the same parents' structural unit stated（4）With panel（3）Between, it is prefabricated into a single integrated structure, form column born of the same parents' structure absorbing energy layer module.
3. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer according to claim 1, it is characterised in that：Column
Born of the same parents' structural unit（4）It is single layer thin-walled hollow curved-surface structure.
4. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer according to claim 1, it is characterised in that：Column
Born of the same parents' structural unit（4）It is multilayer thin-walled hollow curved surface overlaying structure.
5. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer according to claim 4, it is characterised in that：Institute
State column born of the same parents' structural unit（4）, by the first surface body being arranged in order（41）, the second curved body（42）, third curved body（43）,
Four curved bodies（44）Superposition is constituted in the same direction, first surface body（41）Positioned at upper end, the upper end of outer surface and panel（3）Inside
Face connects, first surface body（41）, the second curved body（42）, third curved body（43）, the 4th curved body（44）It is formed and surrounds knot
Structure.
6. safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer according to claim 5, it is characterised in that：Often
A column born of the same parents structural unit（4）Upper and lower adjacent two pieces of curved bodies between gap between, be added packing material.
7. the safeguard structure according to any multilayer curved surface column born of the same parents of claim 1-6 as blast impulse absorbing energy layer, feature
It is：The panel（3）With column born of the same parents' structural unit（4）, it is metal material or non-metallic material；The two material is identical.
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| CN201820325450.1U CN207922974U (en) | 2018-03-09 | 2018-03-09 | Safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer |
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| CN201820325450.1U CN207922974U (en) | 2018-03-09 | 2018-03-09 | Safeguard structure of the multilayer curved surface column born of the same parents as blast impulse absorbing energy layer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252491A (en) * | 2018-11-06 | 2019-01-22 | 淮阴工学院 | A kind of explosion-proof protective device of rock |
| CN109252488A (en) * | 2018-11-06 | 2019-01-22 | 淮阴工学院 | A kind of dam is explosion-proof and anti-icing equipment and its construction method |
| CN112497856A (en) * | 2020-12-30 | 2021-03-16 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
| CN112781460A (en) * | 2020-12-25 | 2021-05-11 | 清华大学 | Device and method for actively controlling and protecting explosion shock waves |
| CN113844124A (en) * | 2021-09-16 | 2021-12-28 | 深圳市航天新材科技有限公司 | Multi-level composite protection structure and preparation method thereof |
-
2018
- 2018-03-09 CN CN201820325450.1U patent/CN207922974U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252491A (en) * | 2018-11-06 | 2019-01-22 | 淮阴工学院 | A kind of explosion-proof protective device of rock |
| CN109252488A (en) * | 2018-11-06 | 2019-01-22 | 淮阴工学院 | A kind of dam is explosion-proof and anti-icing equipment and its construction method |
| CN112781460A (en) * | 2020-12-25 | 2021-05-11 | 清华大学 | Device and method for actively controlling and protecting explosion shock waves |
| CN112781460B (en) * | 2020-12-25 | 2021-12-10 | 清华大学 | Device and method for actively controlling and protecting explosion shock waves |
| CN112497856A (en) * | 2020-12-30 | 2021-03-16 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
| CN113844124A (en) * | 2021-09-16 | 2021-12-28 | 深圳市航天新材科技有限公司 | Multi-level composite protection structure and preparation method thereof |
| CN113844124B (en) * | 2021-09-16 | 2023-09-05 | 深圳市航天新材科技有限公司 | Multi-layer composite protective structure and preparation method thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190428 Address after: 401311 No. 20, North Road, University City, Shapingba District, Chongqing Co-patentee after: Zheng Xu Patentee after: PLA Military Service College Address before: Room 2-1, Building C, Nanyuan, Xinqiao Hospital, Shapingba District, Chongqing 400037 Co-patentee before: Zheng Xu Patentee before: Deng Anzhong |
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| TR01 | Transfer of patent right |