CN112013718B - Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part - Google Patents
Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part Download PDFInfo
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- CN112013718B CN112013718B CN202010674681.5A CN202010674681A CN112013718B CN 112013718 B CN112013718 B CN 112013718B CN 202010674681 A CN202010674681 A CN 202010674681A CN 112013718 B CN112013718 B CN 112013718B
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- 238000004880 explosion Methods 0.000 title abstract description 19
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H7/00—Armoured or armed vehicles
- F41H7/02—Land vehicles with enclosing armour, e.g. tanks
- F41H7/04—Armour construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/007—Reactive armour; Dynamic armour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/06—Shields
- F41H5/08—Shields for personal use, i.e. hand held shields
Abstract
The invention discloses a coupling bionic anti-explosion energy-absorbing plate, which comprises a plurality of layers of base plates, a plurality of energy-absorbing cells and filler, wherein the plurality of energy-absorbing cells are arranged between every two adjacent layers of base plates at intervals in sequence along the thickness direction of the energy-absorbing plate, the filler is filled in a cavity formed between the energy-absorbing cells and the two adjacent layers of base plates, each energy-absorbing cell comprises a first contour line and a second contour line, each energy-absorbing cell is provided with a central plane, the first contour lines are symmetrically arranged relative to the central plane, the second contour lines are respectively and symmetrically arranged at two opposite sides of the central plane, the energy-absorbing cells further comprise transition curves respectively connected between the second contour lines at two sides and the end parts of the first contour lines, and the first contour lines meet the curve equation y of-0.021 x2+0.113x +25.31, the second profile line satisfying the curve equation-2.315 x2+3.722x + 6.398. The coupling bionic anti-explosion energy absorption plate is simple in structure, the cross section outline of the energy absorption unit cell is similar to the appearance structure of a turquoise, and the coupling bionic anti-explosion energy absorption plate has a good buffering energy absorption effect, so that the safety of protected vehicles, equipment in a vehicle and passengers can be ensured.
Description
Technical Field
The invention relates to the technical field of explosion impact protection, in particular to a coupling bionic anti-explosion energy-absorbing plate and a human body protection device or an automobile part.
Background
Since the outbreak of the iraq war in 03, the war mode is changed from the group confrontation of armor into small-scale and low-intensity asymmetric combat, and army works against the beauty use simple explosives to cause a large number of casualties to the beauty army. The losses from the blast to military vehicles are about 20% of the total, and this proportion is close to 40% in part of the campaign. The second-generation and third-generation military vehicles which are researched and developed by China at present do not consider the explosion-proof capability at present, and the anti-explosion armored vehicle is also a starting stage for the structural characteristics of the anti-explosion armored vehicle and the protection of personnel in the vehicle. Meanwhile, secondary injuries are caused more and more due to impact response caused by explosion, and in the situations, various irreversible injuries can be caused to personnel and equipment due to impact effect generated by explosion.
Although various protective seats, headrests and other devices appear in China at present, the traditional design ideas such as complex mechanical link mechanisms, spring mechanisms, hydraulic mechanisms and slide rail mechanisms are adopted, so that the cost is high, and the defects of large occupied space, heavy weight and the like are overcome.
Disclosure of Invention
The invention aims to provide an improved coupling bionic anti-explosion energy-absorbing plate aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a coupling bionical antiknock energy-absorbing board, includes the multilayer base plate, the multilayer the base plate is followed energy-absorbing plate thickness direction order interval sets up, energy-absorbing plate is still including setting up at every adjacent two-layer a plurality of energy-absorbing cells between the base plate and filling are in energy-absorbing cell and adjacent two-layer the filler in the cavity that forms between the base plate, every energy-absorbing cell all includes first contour line and second contour line, every energy-absorbing cell all has the central plane, first contour line is relative the central plane symmetry sets up, the second contour line symmetry respectively sets up the relative both sides of central plane, energy-absorbing cell still including connect respectively both sides the second contour line with the transition curve between the tip of first contour line, first contour line satisfies curve equation y ═ 0.021x2+0.113x +25.31, said second profile line satisfying the curve equation-2.315 x2+3.722x+6.398。
Preferably, the structural dimensions of the energy-absorbing cells in the same layer are the same, and the central planes of the energy-absorbing cells in the same layer are arranged in parallel.
Furthermore, along the thickness extension direction of the energy absorption plate, the central planes of the energy absorption cells of two adjacent layers are vertical to each other, and the central planes of the energy absorption cells arranged at intervals are parallel or coincident.
Furthermore, along the extension direction of the thickness of the energy absorption plate, the height size of each layer of energy absorption unit cells arranged in parallel or overlapped with the central plane is gradually increased.
In a specific embodiment, the height dimension of each layer of energy-absorbing cells arranged parallel or coincident with the central plane in the direction of thickness extension of the energy-absorbing plate is multiplied by an index of 2.
Preferably, the substrate is made of a steel plate, a magnesium aluminum alloy plate or a carbon fiber plate.
Preferably, the filler is a foam filler.
Preferably, the energy-absorbing cells are made of an elastic metal material.
The invention also provides a human body protection device or an automobile part, which is provided with the energy absorption plate.
Preferably, the structural sizes of the energy-absorbing cells in the same layer are the same, the central planes of the energy-absorbing cells in the same layer are arranged in parallel, and the sizes of the energy-absorbing cells in the layers arranged in parallel or overlapped with the central planes are gradually increased from the inner side to the outer side of the energy-absorbing plate.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the coupling bionic anti-explosion energy absorption plate is simple in structure, the cross section outline of the energy absorption unit cell is similar to the appearance structure of a turpentine, and the energy absorption unit cell can play a good role in buffering and absorbing energy, so that the safety of protected vehicles, equipment in the vehicle and passengers can be ensured.
Drawings
FIG. 1 is a perspective view of a coupling bionic anti-knock energy-absorbing plate of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a front view of the coupling bionic anti-knock energy-absorbing plate of the invention;
FIG. 4 is a side view of the coupling bionic anti-knock energy-absorbing plate of the invention;
FIG. 5 is a schematic structural diagram of an energy-absorbing cell of the coupling bionic anti-knock energy-absorbing plate of the invention (enlarged view, the energy-absorbing cell only shows part of the length);
FIG. 6 is a cross-sectional view (enlarged) of an energy-absorbing cell of the coupled bionic antiknock energy-absorbing panel of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1 to 4, the coupling bionic anti-knock energy-absorbing plate of the invention comprises a substrate 1, energy-absorbing cells 2 and filler 3.
The base plate 1 is provided with a plurality of layers along the thickness extension direction of the energy-absorbing plate, a plurality of energy-absorbing cells 2 are arranged between every two adjacent layers of base plates 1, and the filler 3 is filled in a cavity formed between the energy-absorbing cells 2 and the two adjacent layers of base plates 1, so that the base plates 1, the energy-absorbing cells 2 and the filler 3 form the energy-absorbing plate with the functions of anti-explosion and energy absorption. In this embodiment the base plate 1, the energy-absorbing cells 2 and the filler 3 of each layer are bonded together by gluing.
As shown in fig. 5 and 6, each energy-absorbing cell 2 comprises a first contour line 21 and a second contour line 22, each energy-absorbing cell 2 has a central plane 23, the first contour line 21 is symmetrically arranged with respect to the central plane 23, the second contour lines 22 are symmetrically arranged on opposite sides of the central plane 23, the energy-absorbing cell 2 further comprises a transition curve 24 respectively connecting the second contour lines 22 on both sides and the end of the first contour line 21, in this embodiment, the transition curve 24 is a transition arc.
The first contour line 21 satisfies the curve equation y-0.021 x2+0.113x +25.31, the second contour 22 satisfies the curve equation y-2.315 x2+3.722x + 6.398. Thus, the outline of the energy absorption unit cell 2 is similar to a pine cone structure, the pine cone has an open multi-scale structure, mature pine cones fall off from trees, scales of the mature pine cones play a role in buffering and damping, and the open scale structureThe ellipsoidal structure of the pine cone enables the pine cone to quickly rebound and absorb the generated energy. The invention applies the contour curve to the design of the energy-absorbing unit cell 2, so that the energy-absorbing unit cell 2 absorbs the load brought by explosion impact through elastic-plastic deformation when being impacted, and has better buffering and energy-absorbing effects.
Preferably, the energy-absorbing cells 2 in the same layer have the same size, and the central planes 23 of the energy-absorbing cells 2 in the same layer are arranged in parallel, and the energy-absorbing cells 2 in the same layer are arranged at intervals in sequence along the length or width extension direction of the base plate 1.
Along the thickness extension direction of the energy-absorbing plate, the central planes 23 of the energy-absorbing cells 2 of two adjacent layers are vertical, and the central planes 23 of the energy-absorbing cells 2 arranged at intervals are parallel or overlapped.
Along the thickness extension direction of the energy absorption plate, the height dimension of each layer of energy absorption unit cells 2 arranged with the central planes parallel or overlapped is gradually increased, and preferably, the height dimension of each layer of energy absorption unit cells 2 arranged with the central planes parallel or overlapped is multiplied by an index of 2. The mesocarp structure of shaddock is a structure that has density gradual change process, does not have obvious boundary line in the change process of aperture size, belongs to a form that passes through in succession, in this application, along the thickness extension direction of energy-absorbing plate, the height dimension of each layer energy-absorbing unit cell 2 that the central plane parallel or coincidence set up is close with the trend of aperture increase in the shaddock skin with the structure form that 2 exponential multiplication is big, the shaddock is the biggest citrus fruit of fruit, the shaddock can grow to 15m height, the heaviest shaddock can have 6 kg. Under natural conditions, the shaddock peel can protect shaddock sacs full of moisture, the shaddock peel can fall from trees without damage, and the buffering performance of the shaddock peel can be seen. In this application, along energy-absorbing plate thickness extending direction, the gradient trend of the height of each layer of energy-absorbing unit cell 2 that the central plane parallel or the coincidence set up is through the mesocarp gradient change of imitative shaddock and obtains, can effectual load process curve that accords with the explosion impact to the peak load of effective reduction explosion impact.
Specifically, in this embodiment, along the thickness extension direction of the energy absorbing plate, the energy absorbing cells 2 are provided with six layers, the central planes 23 of the first, third and fifth layers of energy absorbing cells 2 all extend along the length direction of the energy absorbing plate 2, and the ratio of the heights of the first, third and fifth layers of energy absorbing cells 2 is L1: l2: l3 ═ 1: 2: 4, the central planes 23 of the energy-absorbing cells 2 of the second, fourth and sixth layers each extend in the width direction of the energy-absorbing panel 2, and the ratio of the heights of the energy-absorbing cells 2 of the second, fourth and sixth layers is L1': l2': l3' ═ 1: 2: the size of the energy-absorbing cells 2 of the first layer is the same as the size of the energy-absorbing cells 2 of the second layer, i.e. L1 ═ L1 ', the size of the energy-absorbing cells 2 of the third layer is the same as the size of the energy-absorbing cells 2 of the fourth layer, i.e. L2 ═ L2 ', and the size of the energy-absorbing cells 2 of the fifth layer is the same as the size of the energy-absorbing cells 2 of the sixth layer, i.e. L3 ═ L3 '.
The material of the base plate 1 can be a steel plate, a magnesium aluminum alloy plate or a carbon fiber plate, the material of the filler 3 can be a foam filler, such as foamed aluminum, polyester foam and the like, and the material of the energy absorption unit cells 2 can be an elastic metal material, such as elastic spring steel and the like.
In conclusion, the cross-sectional profile of the energy-absorbing unit cell 2 of the energy-absorbing plate is derived from the shape structure of a pine cone, and the energy-absorbing plate is approximately hemispherical and can play a good role in buffering and absorbing energy; the deformed rear sections among the energy-absorbing cells 2 can provide better strength support for the energy-absorbing plate through interaction; the filling densities of the energy absorption unit cells 2 with the size gradient change and the fillers 3 can effectively accord with a load history curve of explosive impact, so that the peak load of the explosive impact is effectively reduced; the material properties and the dimensions of the substrate 1, the energy-absorbing cells 2 and the filler 3 can be selected according to actual needs, and can be adjusted according to actual needs to meet the needs, so that the application range is wider. The whole energy-absorbing plate forms a multi-layer combined energy-absorbing structure, the larger part of the impact of explosion impact is absorbed by the outer first-stage energy-absorbing structure, and then the residual impact energy is further absorbed in the later multi-stage unit cell structure.
The energy absorption plate can be applied to a human body protection device or an automobile part to absorb the impact effect generated by explosion or impact, so that the safety of a protected vehicle, equipment in the automobile and passengers is ensured. When the energy absorption plate is applied to a human body protection device or an automobile part, two ends of the energy absorption plate in the thickness direction respectively face the inner side and the outer side of the human body protection device or the automobile part, and the height sizes of all layers of energy absorption unit cells 2 arranged in parallel or overlapped with the central plane from the inner side to the outer side are gradually increased, preferably increased by 2 times.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (9)
1. The utility model provides a bionical antiknock energy-absorbing board of coupling, includes multilayer substrate, the multilayer the substrate is followed energy-absorbing plate thickness direction is interval setting its characterized in that in proper order: the energy-absorbing plate is characterized by further comprising a plurality of energy-absorbing cells arranged between every two adjacent layers of the base plates and filler filled in the cavities formed between the energy-absorbing cells and the two adjacent layers of the base plates, wherein each energy-absorbing cell comprises a first contour line and a second contour line, each energy-absorbing cell is provided with a central plane, the first contour lines are opposite to each other, the second contour lines are symmetrically arranged on two opposite sides of the central plane respectively, the energy-absorbing cells further comprise transition curves connected to the two sides respectively, the second contour lines are connected with the end portions of the first contour lines, and the first contour lines meet the curve equation y of-0.021 x2+0.113x +25.31, said second profile line satisfying the curve equation-2.315 x2+3.722x +6.398, the structural size of each energy-absorbing unit cell that is located the same layer is the same, and be located the central plane parallel arrangement of each energy-absorbing unit cell of the same layer, along the thickness extending direction of energy-absorbing plate, adjacent two-layer the central plane of energy-absorbing unit cell is mutually perpendicular, the interval one deck setting the central plane of energy-absorbing unit cell is parallel or coincide, along the thickness extending direction of energy-absorbing plate, each layer that the central plane parallel or coincide set up the height dimension of energy-absorbing unit cell increases gradually.
2. The coupling bionic anti-knock energy-absorbing plate according to claim 1, wherein: and the height dimension of each layer of energy-absorbing unit cells arranged in parallel or overlapped with the central plane is multiplied by an index of 2 along the thickness extension direction of the energy-absorbing plate.
3. The coupling bionic anti-knock energy-absorbing plate according to claim 1, wherein: the substrate is made of a steel plate, a magnesium aluminum alloy plate or a carbon fiber plate.
4. The coupling bionic anti-knock energy-absorbing plate according to claim 1, wherein: the filler is foam filler.
5. The coupling bionic anti-knock energy-absorbing plate according to claim 1, wherein: the energy absorption unit cell is made of elastic metal materials.
6. A human body protection device is characterized in that: an energy absorbing panel according to any one of claims 1 to 5.
7. A body guard according to claim 6, characterised in that: and the height size of each layer of energy-absorbing unit cells arranged in parallel or overlapped with the central plane is gradually increased from the inner side to the outer side of the energy-absorbing plate.
8. An automotive part characterized by: an energy absorbing panel according to any one of claims 1 to 5.
9. The automotive part of claim 8, wherein: and the height size of each layer of energy-absorbing unit cells arranged in parallel or overlapped with the central plane is gradually increased from the inner side to the outer side of the energy-absorbing plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674681.5A CN112013718B (en) | 2020-07-14 | 2020-07-14 | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010674681.5A CN112013718B (en) | 2020-07-14 | 2020-07-14 | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
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| CN112013718A CN112013718A (en) | 2020-12-01 |
| CN112013718B true CN112013718B (en) | 2022-05-27 |
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| CN112497856B (en) * | 2020-12-30 | 2023-03-03 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
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| CN105082635A (en) * | 2015-08-26 | 2015-11-25 | 杭州电子科技大学 | Multicycle energy absorbing structure |
| CN105730142A (en) * | 2016-02-01 | 2016-07-06 | 吉林大学 | Bionic metal flexible rover wheel |
| CN106853708B (en) * | 2016-12-07 | 2018-11-13 | 中国人民解放军海军工程大学 | Buoyancy compensation type crashworthiness energy-absorbing composite material by multilayer array configuration module |
| CN208236975U (en) * | 2018-04-23 | 2018-12-14 | 深圳市乾行达科技有限公司 | Power-absorbing and energy absorption device |
| CN108773111A (en) * | 2018-05-28 | 2018-11-09 | 深圳先进技术研究院 | Functionally gradient honeycomb sandwich board and its manufacturing method |
| CN112696983A (en) * | 2020-12-22 | 2021-04-23 | 北京理工大学 | Gradient type indent honeycomb explosion-proof construction |
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