CN110525628B - Cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency - Google Patents
Cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency Download PDFInfo
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- CN110525628B CN110525628B CN201910668448.3A CN201910668448A CN110525628B CN 110525628 B CN110525628 B CN 110525628B CN 201910668448 A CN201910668448 A CN 201910668448A CN 110525628 B CN110525628 B CN 110525628B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/10—Bulkheads
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Abstract
The invention relates to a cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency, which comprises a shell and a cellular structure plate, wherein the shell is provided with a plurality of grooves; the honeycomb structure plate is arranged in the shell and connected with the shell; the shell comprises a side plate, an upper skin and a lower skin; the edge of the upper skin is connected with the upper edge of the side plate, and the edge of the lower skin is connected with the lower edge of the side plate; the honeycomb structure plate is an array structure consisting of a plurality of honeycomb cell structures; the honeycomb cellular structure comprises a hollow regular hexagon aluminum sheet, a hollow regular triangle aluminum sheet I, a hollow regular triangle aluminum sheet II and transverse reinforcing ribs; the hollow regular hexagon aluminum sheet forms the right outer contour of the honeycomb cell structure, and the hollow regular triangle aluminum sheet I and the hollow regular triangle aluminum sheet II are combined in a butt joint mode to form the left outer contour of the honeycomb cell structure. The honeycomb cellular structures are mutually interwoven and connected together, so that the bearing capacity of three orthogonal axes can be borne, and the bearing capacity and the energy absorption capacity can be realized for any multi-directional angles.
Description
Technical Field
The invention relates to the technical field of buffering and energy absorption, in particular to a cellular honeycomb buffering device for improving multidirectional bearing and energy absorption efficiency.
Background
The honeycomb structure is a good buffer material with high specific strength, high specific stiffness and superior specific energy absorption, and is widely applied to flight landers, bridge protection devices and railway vehicle passive protection devices. However, the existing honeycomb aluminum with the traditional structure has lower mass energy absorption, and the working state of buffering and energy absorption is only suitable for being carried out in a certain single direction.
The traditional honeycomb aluminum structure is always in the different-plane direction, and the array layout of the honeycomb is designed according to the different-plane bearing direction, so that the superior bearing and energy absorbing characteristics in the different-plane direction are obtained. However, in actual working conditions, especially during flight and landing of helicopters and unmanned aerial vehicles, external impact loads are from multiple directions. The existing aircraft buffer structure is easy to be disturbed transversely in the working process, so that the problems of longitudinal instability and the like occur, the design of a multidirectional impact resistant protection buffer structure and the research of a buffer mechanism are lacked, and the impact resistance design of a fuselage under the condition of uncertain impact load direction is difficult to meet.
Disclosure of Invention
The invention aims to provide a cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency, and aims to solve the technical problem that a helicopter buffer structure is weak in multidirectional bearing capacity.
In order to solve the technical problems that the buffer structure is mainly stressed in one direction and weak in multidirectional bearing capacity, the invention adopts the following technical scheme:
a cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency comprises a cellular honeycomb buffer device 1, a shell and a honeycomb structure plate, wherein the cellular honeycomb buffer device comprises a shell and a honeycomb structure plate;
the shell is used for resisting bottom impact, and the honeycomb structural plate is used for bearing a device for buffering and absorbing energy.
The honeycomb structural plate is arranged in the shell and connected with the shell, and the shell is used as a supporting shell of the internal honeycomb structural plate;
in order to solve the problem of multidirectional bearing and energy absorption when the helicopter buffer device lands, the honeycomb structural plate is of a combined array structure of a plurality of honeycomb cellular structures 11;
the shell plays a certain role in protecting the honeycomb cellular structure 11 inside, so that the honeycomb cellular structure 11 is prevented from being deformed, laminated and the like when being subjected to a small load;
the honeycomb cellular structure 11 comprises a hollow regular hexagon aluminum sheet 111, a hollow regular triangle aluminum sheet I112, a hollow regular triangle aluminum sheet II 113 and a transverse reinforcing rib 114;
the hollow regular hexagon aluminum sheet 111 is the right outer contour of the honeycomb cell structure 11, and the hollow regular triangle aluminum sheet I112 is connected with the hollow regular triangle aluminum sheet II 113 to form the left outer contour of the honeycomb cell structure 11;
two adjacent vertical plates on the left side of the hollow regular hexagon face aluminum thin plate 111 are respectively connected with a vertical plate of a hollow regular triangle face aluminum thin plate 112 and a hollow regular triangle face aluminum thin plate 113, and a transverse reinforcing rib 114 is arranged in the hollow regular hexagon face aluminum thin plate 111 to form a complete honeycomb cellular structure 11.
The aluminum sheets in the honeycomb cellular structure 11 are mutually interwoven and connected together, so that the aluminum sheet not only can bear the stress of three orthogonal axes, but also can have certain bearing and energy absorbing capacity for any multi-direction angle.
On the basis of the scheme, on the cross section along the XY plane, the cross section of the hollow regular-hexagon surface body aluminum thin plate 111 is a regular hexagon, the cross sections of the hollow regular-triangle surface body aluminum thin plate I112 and the hollow regular-triangle surface body aluminum thin plate II 113 are regular triangles, and the side length of the regular hexagon is equal to that of the regular triangle.
On the basis of the scheme, two adjacent vertical plates on the left side of the hollow regular hexagon surface body aluminum thin plate 111 are respectively connected with one vertical plate of the hollow regular triangle surface body aluminum thin plate I112 and the hollow regular triangle surface body aluminum thin plate II 113 in a shared-edge mode.
On the basis of the scheme, the cellular honeycomb buffering device 1 is used for helicopters, unmanned planes, high-speed railway trains, high-speed motor train units, highway buses, cars, business vehicles, airplanes, ships, cruise ships or mail ships and the like.
On the basis of the scheme, the shell and the honeycomb structural plate are fixedly connected in an adhesive mode.
On the basis of the scheme, the shell comprises an upper skin 12, a side plate 13 and a lower skin 14; the edge of the upper skin 12 is connected with the upper edge of the side plate 13, and the edge of the lower skin 14 is connected with the lower edge of the side plate 13;
on the basis of the above scheme, the side plates 13 and the upper skin 12 and the lower skin 14 can be fixed by gluing, screwing or other forms of connection.
On the basis of the scheme, the first hollow regular triangular surface body aluminum thin plate 112 and the second hollow regular triangular surface body aluminum thin plate 113 are glued in a butt joint mode, the stability of a triangle is utilized, the Y-direction bearing capacity is enhanced,
on the basis of the scheme, the transverse reinforcing ribs 114 are arranged between the left and right opposite angles of the hollow regular hexagonal surface aluminum thin plate 111, and play a role in reinforcing the bearing force in the X direction.
The invention has the beneficial effects that:
honeycomb structure board is the array structure that a plurality of honeycomb cell structures 11 are constituteed, honeycomb cell structure 11 is by cavity regular hexagon face body aluminum sheet 111, cavity regular triangle face body aluminum sheet one 112, cavity regular triangle face body aluminum sheet two 113, horizontal strengthening rib 114, the interconnect cooperation is constituteed, make the honeycomb cell not only all possess certain buffering energy-absorbing ability of bearing to the load of multidirectional arbitrary angle, and compare with traditional regular hexagon honeycomb, horizontal bearing capacity is higher, more have the advantage, suitable environment is wider, thereby satisfy helicopter or unmanned aerial vehicle multidirectional demand that bears the buffering energy-absorbing.
Drawings
The invention has the following drawings:
FIG. 1: schematic view of the bottom of a nacelle
FIG. 2: schematic diagram I of energy absorption buffer device of cellular honeycomb
FIG. 3: schematic diagram II of energy absorption buffer device of cellular honeycomb
FIG. 4: the cellular structure of the invention is schematically shown as
FIG. 5: the cellular structure of the invention is schematically shown in the second
Reference numerals:
1. energy-absorbing buffer of cellular honeycomb, 2, top panel, 3, backup pad, 11, honeycomb cellular structure, 12, upper skin, 13, curb plate, 14, lower skin, 111, cavity regular hexagon face body aluminum sheet, 112, cavity regular triangle face body aluminum sheet one, 113, cavity regular triangle face body aluminum sheet two, 114, horizontal strengthening rib.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings 1 to 5.
The invention provides a cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency, which is further described in detail by referring to the attached drawings and embodiments in order to make the purpose, technical scheme and effect of the invention clearer and more clear, but the described examples are only used for explaining the invention and do not limit the invention.
As shown in fig. 1, which is a schematic view of the invention applied to a helicopter or unmanned aerial vehicle damping device, the bottom of a cabin is composed of an energy absorption damping device 1, an upper panel 2 and two supporting plates 3 of the cellular honeycomb, the supporting plates 3 on two sides are connected with the upper panel 2, wherein the energy absorption damping device 1, the upper panel 2, the supporting plates 3 and the bottom cabin plate of the cellular honeycomb form a cabin bottom damping structure. The energy absorption buffer device 1 of the cellular honeycomb is arranged at the bottom of a cabin, and is mainly used for playing the roles of multi-directional bearing, buffering and energy absorption when an aircraft landing gear or a cabin bottom plate is abnormally grounded with the ground.
As shown in fig. 2 and 3, the energy-absorbing buffer device 1 of the cellular honeycomb comprises a shell and a cellular structure plate, wherein the shell comprises an upper skin 12, a lower skin 14 and a side plate 13, wherein the upper skin 12, the lower skin 14 and the side plate 13 form a shell of the energy-absorbing buffer device 1 of the cellular honeycomb, the shell is used as a supporting shell of an internal cellular structure and is used for being fixedly connected with an engine room, the cellular structure plate comprises a plurality of cellular structures 11, and the shell is used for protecting the internal cellular structures 11 to a certain extent so as to prevent the cellular structures 11 from being deformed, laminated and the like when being subjected to a small load. The side plates 13, the upper skin 12, the lower skin 14 and the honeycomb cellular structure 11 are connected and fixed in an adhesive manner, and the side plates 13, the upper skin 12 and the lower skin 14 can be connected in an adhesive manner, a screw connection manner or other manners.
As shown in fig. 4, the honeycomb cell structure 11 is formed by a plurality of layers of aluminum sheets with different layouts, and the honeycomb cell structure 11 includes a hollow regular hexagon aluminum sheet 111, a hollow regular triangle aluminum sheet one 112, a hollow regular triangle aluminum sheet two 113, and a transverse reinforcing rib 114; the hollow regular hexagon aluminum sheet 111, the opposite hollow regular triangle aluminum sheet I112 and the hollow regular triangle aluminum sheet II 113 form the outer contour of the honeycomb cell structure 11, and can be arrayed to form a large-area honeycomb structure.
The outer edges of the hollow regular hexagon face aluminum thin plate 111 and the outer edges of the hollow regular triangle face aluminum thin plate are connected and are distributed in a mode of being parallel to XZ and YZ planes, wherein the first hollow regular triangle face aluminum thin plate 112 and the second hollow regular triangle face aluminum thin plate 113 are glued to the top to form a stable opposite vertex triangle characteristic and can well bear the impact load in the Y direction, the transverse reinforcing ribs 114 are added on the hollow regular hexagon face aluminum thin plate 111 and can well bear the impact load in the X direction,
the complete reinforcing honeycomb cellular structure 11 of cooperation form is interweaved each other to cavity regular hexagon face body aluminum sheet 111, cavity regular triangle face body aluminum sheet one 112, cavity regular triangle face body aluminum sheet two 113, horizontal strengthening rib 114 to not only possess certain bearing capacity in the optional direction, compare with traditional regular hexagon honeycomb moreover, vertical bearing capacity is higher. Thereby satisfying the multidirectional buffering energy-absorbing demand that bears of helicopter or unmanned aerial vehicle.
Those not described in detail in this specification are within the skill of the art.
Claims (3)
1. The cellular honeycomb buffer device for improving the multidirectional bearing energy absorption efficiency is characterized in that the cellular honeycomb buffer device (1) comprises a shell and a honeycomb structural plate;
the shell is used for resisting bottom impact, and the honeycomb structural plate is used for bearing a device for buffering and absorbing energy;
the honeycomb structural plate is arranged in the shell and connected with the shell, and the shell is used as a supporting shell of the internal honeycomb structural plate;
the honeycomb structure plate is a combined array structure of a plurality of honeycomb cell structures (11);
the honeycomb cellular structure (11) comprises a hollow regular hexagon aluminum sheet (111), a hollow regular triangle aluminum sheet I (112), a hollow regular triangle aluminum sheet II (113) and transverse reinforcing ribs (114);
the hollow regular hexagon face aluminum thin plate (111) is the right outer contour of the honeycomb cell structure (11), and the hollow regular triangle face aluminum thin plate I (112) is connected with the hollow regular triangle face aluminum thin plate II (113) to form the left outer contour of the honeycomb cell structure (11);
two vertical plates adjacent to the left side of the hollow regular-hexagon-shaped aluminum thin plate (111) are respectively connected with one vertical plate of the hollow regular-triangle-shaped aluminum thin plate I (112) and one vertical plate of the hollow regular-triangle-shaped aluminum thin plate II (113), and a transverse reinforcing rib (114) is arranged in the hollow regular-hexagon-shaped aluminum thin plate (111) to form a complete honeycomb cell structure (11);
when the honeycomb cell structure (11) is arrayed,
the relative position relation of the cellular structures of the upper layer and the lower layer is as follows: the bottom plate of the hollow regular hexagon aluminum sheet (111) in the upper honeycomb cell structure is connected with the top plate of the hollow regular hexagon aluminum sheet (111) in the lower honeycomb cell structure in a joint way, and the bottom plate of the hollow regular triangle aluminum sheet II (113) in the upper honeycomb cell structure is connected with the top plate of the hollow regular triangle aluminum sheet I (112) in the lower honeycomb cell structure in a joint way;
two vertical plates adjacent to the right side of the hollow regular hexagon aluminum thin plate (111) in one honeycomb cellular structure (11) are respectively connected with one vertical plate of the hollow regular triangle aluminum thin plate I (112) and the hollow regular triangle aluminum thin plate II (113) in the other honeycomb cellular structure (11) in a shared-edge mode, and an array structure of the honeycomb cellular structure is formed according to the arrangement mode;
the aluminum sheets in the honeycomb cell structure (11) are connected with each other;
two vertical plates adjacent to the left side of the hollow regular hexagon surface body aluminum thin plate (111) are respectively connected with one vertical plate of the hollow regular triangle surface body aluminum thin plate I (112) and one vertical plate of the hollow regular triangle surface body aluminum thin plate II (113) in a shared edge mode;
the shell and the honeycomb structural plate are fixedly connected in an adhesive mode;
the shell comprises an upper skin (12), a side plate (13) and a lower skin (14); the edge of the upper skin (12) is connected with the upper edge of the side plate (13), and the edge of the lower skin (14) is connected with the lower edge of the side plate (13);
the side plates (13) are glued or screwed with the upper skin (12) and the lower skin (14);
the first hollow regular triangular surface body aluminum thin plate (112) and the second hollow regular triangular surface body aluminum thin plate (113) are in butt joint and used for reinforcing the Y-direction bearing force;
and transverse reinforcing ribs (114) are arranged between the left and right opposite angles of the hollow regular hexagonal surface aluminum thin plate (111) and are used for reinforcing the bearing force in the X direction.
2. The cellular honeycomb buffering device for improving the multi-directional bearing energy absorption efficiency as claimed in claim 1, wherein the cross section of the hollow regular hexagonal aluminum sheet (111) is regular hexagon, the cross sections of the hollow regular triangular aluminum sheet one (112) and the hollow regular triangular aluminum sheet two (113) are regular triangle, and the side length of the regular hexagon is equal to that of the regular triangle.
3. The cellular cushioning device for improving the multidirectional bearing energy absorption efficiency according to claim 1, wherein the cellular cushioning device (1) is used for a helicopter, a high-speed railway train, a high-speed motor train unit, a highway bus, a car, an airplane, a pleasure boat or a passenger liner.
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| CN201910668448.3A CN110525628B (en) | 2019-07-23 | 2019-07-23 | Cellular honeycomb buffer device for improving multidirectional bearing energy absorption efficiency |
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| CN113459604A (en) * | 2021-06-08 | 2021-10-01 | 南京理工大学 | Light-weight high-vibration-resistance energy-absorption explosion-proof composite structure |
| CN114771803B (en) * | 2022-06-20 | 2022-09-13 | 中国飞机强度研究所 | Composite wallboard structure made of impact-resistant foam metal composite material for aircraft manufacturing |
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| CN1826543A (en) * | 2003-07-22 | 2006-08-30 | 住友化学株式会社 | Reflection type polarizer, laminate optical member and liquid crystal display unit |
| US7993727B2 (en) * | 2007-07-06 | 2011-08-09 | Mitsubishi Electric Corporation | Advanced grid structure |
| FR2950178B1 (en) * | 2009-09-14 | 2021-10-22 | Airbus Operations Sas | STRUCTURAL ANALYSIS PROCESS OF PANELS IN ISOTROPIC MATERIAL OF THE RAIDIS TYPE BY TRIANGULAR POCKETS |
| CN203296295U (en) * | 2013-04-10 | 2013-11-20 | 殷国祥 | Honeycomb-structure external wall heat-insulation decoration board |
| CN205149038U (en) * | 2015-10-12 | 2016-04-13 | 重庆市皓邦工业有限公司 | Modular paper cellular type core composite sheet |
| WO2017132554A1 (en) * | 2016-01-27 | 2017-08-03 | West Pharmaceutical Services, Inc. | Syringe nest with hexagonal chimneys and center offset |
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| EP3512696A1 (en) * | 2016-09-13 | 2019-07-24 | SABIC Global Technologies B.V. | A honeycomb system |
| CN108589427B (en) * | 2018-04-24 | 2021-04-13 | 温岭市森林包装有限公司 | High-performance impact-resistant corrugated board |
| CN208774171U (en) * | 2018-09-07 | 2019-04-23 | 成都君诚轨道交通设备有限公司 | A kind of composite molding aluminum honeycomb |
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