CN108773111A - Functionally gradient honeycomb sandwich board and its manufacturing method - Google Patents
Functionally gradient honeycomb sandwich board and its manufacturing method Download PDFInfo
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- CN108773111A CN108773111A CN201810520667.2A CN201810520667A CN108773111A CN 108773111 A CN108773111 A CN 108773111A CN 201810520667 A CN201810520667 A CN 201810520667A CN 108773111 A CN108773111 A CN 108773111A
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- 230000004888 barrier function Effects 0.000 claims description 119
- 230000013011 mating Effects 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 3
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
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- 239000006096 absorbing agent Substances 0.000 description 3
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- 235000013399 edible fruits Nutrition 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- Laminated Bodies (AREA)
- Vibration Dampers (AREA)
Abstract
The invention belongs to porous material technical field more particularly to a kind of functionally gradient honeycomb sandwich board and its manufacturing methods.Functionally gradient honeycomb sandwich board includes at least two layers of cellular sandwich layer, and each layer cellular sandwich layer stackup connection and the unit cell space for being equipped with several rectangular array arrangements and connection, each unit cell space all has hollow hole and cross section is rectangular；Structure positioned at each unit cell space of the cellular sandwich layer of same layer is identical with material, and structure and/or the material for being located at each unit cell space of the cellular sandwich layer of adjacent layer are different.The functionally gradient honeycomb sandwich board energy-absorbing effect of the present invention may be implemented to predict and control, and the incomparable advantage of other each polyporous materials is possessed on passive protection security fields.While the unit cell space size of each cellular sandwich layer is controllable, even tissue, structural form diversification so that stable functionally gradient characteristic is presented in the mechanical property of monoblock functionally gradient honeycomb sandwich board in vertical direction.
Description
Technical field
The invention belongs to porous material technical field more particularly to a kind of functionally gradient honeycomb sandwich board and its manufacturers
Method.
Background technology
Porous material is a kind of by being mutually communicated or closed hole constitutes network structure material.Opposite continuous media material
For, porous material generally have relative density is low, specific strength is high, specific surface area is high, light-weight, sound insulation, heat-insulated, good penetrability
The advantages that.In addition, the ability that porous material is usually absorbed with very high damping vibration attenuation and impact energy, therefore be commonly used for
Manufacture buffering or energy absorber and first accessory.Porous metal material is a kind of typical porous material.It is widely used in energy-absorbing at present
Porous metal material in device is cellular and foam type structure (being mostly foamed aluminium), and can generally be made into sandwich knot
Structure.In the automotive industry, automobile cover plate, truck cap and sliding roof etc. can be manufactured using porous metals Sandwich structure, to
Mitigate the quality of structural member and improves the rigidity of structural member.Porous metals battenboard also has the effect of high absorption impact and acoustic energy
Fruit.In aerospace industry, the impact energy absorber element that porous metals have been studied in space shuttle landing chassis is being made
In boatman's industry.In railway locomotive industry, porous metals core material large size panelling has been used for being permitted multipart build in modernization passenger steamer
It makes, porous metals sandwich structure is applied in watercraft engine room vibration and noise reducing.
Among numerous porous materials, a kind of more typical pore structure is assembled in the plane by a large amount of polygonal holes
The two-dimensional structure of formation, referred to as " honeycomb " porous material.The pass of these two-dimensional structures has the hexagonal structure similar to honeycomb,
Also there are the other structures such as quadrangle, triangle.If the material of these " honeycomb " porous materials is metal (generally aluminium), claim
Be metal beehive (or being " aluminum honeycomb "), they are generally also made into metal honeycomb sandwich plate.However, existing honeycomb
The energy absorber or device of formula, structural form is relatively simple, does not have the functionally gradient effect along a direction.Even if there are
Some have the honeycomb energy-absorbing technology of gradient type energy-absorbing effect, but energy absorption device structure is relatively complicated, and it is larger to prepare difficulty.
In conclusion application of the current porous material in buffering energy-absorbing occasion has the following problems：
(1) for impact damper system and the porous sandwich structure of buffering energy-absorbing occasion based on " foamed aluminium " of three-dimensional structure,
But the structure cells elements such as the hole shape of foam aluminium sandwich, aperture, hole are not easy to control, lead to nonuniform organization, to which energy-absorbing effect is difficult
To predict and control.
(2) structural form for being used for impact damper system and the cellular material of buffering energy-absorbing occasion is mostly relatively simple, does not have
Along a direction or functionally gradient effect；Even if thering are some to have the honeycomb energy-absorbing technology of gradient type energy-absorbing effect, but it is tied
Structure is relatively complicated, realizes that difficulty is larger.
Invention content
The purpose of the present invention is to provide a kind of functionally gradient honeycomb sandwich board and its manufacturing methods, it is intended to solve existing skill
Porous material energy-absorbing effect in art it is difficult to predict and control, and the technical problem that structural form is single, complicated.
To achieve the above object, the technical solution adopted by the present invention is：A kind of functionally gradient honeycomb sandwich board, feature exist
In：Including at least two layers of cellular sandwich layer, each layer cellular sandwich layer stackup connection；
Each layer cellular sandwich layer is equipped with the unit cell space of several rectangular array arrangements and connection, each unit
Cell space all has hollow hole and cross section is rectangular；
Structure positioned at each unit cell space of the cellular sandwich layer of same layer is identical with material, is located at adjacent layer
The cellular sandwich layer each unit cell space structure and/or material it is different.
Wall thickness and/or the material for being preferably located at each unit cell space of the cellular sandwich layer of adjacent layer are different.
The length of side and/or the material for being preferably located at each unit cell space of the cellular sandwich layer of adjacent layer are different.
Height and/or the material for being preferably located at each unit cell space of the cellular sandwich layer of adjacent layer are different.
Preferably, each layer cellular sandwich layer includes each institute of several barrier pieces, rectangular array arrangement and connection
Unit cell space is stated to connect to enclose to set with longitudinally arranged several barrier piece vertical interlaceds by several barrier pieces of lateral arrangement to be formed.
Preferably, each barrier piece is equipped with several plug-in wire ways；
Each plug-in wire way is equally spaced along the length direction of the barrier piece, and each plug-in wire way is by institute
The one end for stating barrier piece short transverse extends towards the other end；
In lateral arrangement each barrier piece the plug-in wire way with it is corresponding be in longitudinally arranged each barrier
The plug-in wire way of piece is facing mating.
Preferably, the one or both ends of each barrier piece short transverse are equipped with several positioned at the two adjacent patch
Tabs between slot, the tabs are arranged perpendicular to the barrier piece, and each tabs is respectively positioned on the corresponding unit born of the same parents
In the hollow hole of body.
Preferably, the barrier piece vertical interlaced of the barrier piece and each longitudinally spaced arrangement that are respectively arranged laterally at a spacing
It is integrally formed.
Preferably, the functionally gradient honeycomb sandwich board further includes several distance pieces, each cellular sandwich layer adjacent to
The end of another cellular sandwich layer and/or it is connected with the distance piece departing from the end of another cellular sandwich layer.
Beneficial effects of the present invention：The functionally gradient honeycomb sandwich board of the present invention, if passing through dried layer (at least two layers) bee
Nest sandwich layer stackup is formed by connecting, and has the unit cell space of separate two-dimensional rectangular planar structure per one functional layer, also, positioned at same
The structure of each unit cell space of one layer of cellular sandwich layer is identical with material, is located at each unit born of the same parents of the cellular sandwich layer of adjacent layer
The structure and/or material of body are different, therefore every layer of cellular sandwich layer all has itself exclusive energy absorption functional characteristic, according to
Each cellular sandwich layer is laminated in the demand of energy-absorbing, make its vertically on to buffering or impact energy absorb on present
The effect of functionally gradient formula, energy-absorbing effect may be implemented to predict and control, possess on passive protection security fields other all kinds of
The incomparable advantage of porous material.Meanwhile the overall structure of functionally gradient honeycomb sandwich board is relatively simple, production cost
It is low, and the unit cell space size of each layer cellular sandwich layer is controllable, even tissue, structural form diversification so that monoblock function
Stable function ladder is presented in the mechanical property (including statics and dynamic performance) of gradient honeycomb sandwich board in vertical direction
Spend characteristic.
Another technical solution that the present invention uses is：A kind of manufacturing method of functionally gradient honeycomb sandwich board, including it is as follows
Step：
Prepare at least two layers of cellular sandwich layer；
In the unit cell spaces of several rectangular arrays arrangement and connection are arranged on each cellular sandwich layer, and make described
Unit cell space all has hollow hole and cross section is rectangular；
It is arranged so that the structure of each unit cell space of the cellular sandwich layer of same layer is identical with material；
If the cellular sandwich layer with the different unit cell space of stem structure and/or material is disposed adjacent simultaneously layer
Folded connection.
Preferably, the manufacture of several rectangular array arrangements and the unit cell space of connection includes the following steps：
Prepare several barrier pieces；
Several barrier pieces are arranged laterally at a spacing, and are longitudinally arranged the barrier of the barrier piece and each lateral arrangement one by one
The connection of piece vertical interlaced, which is enclosed, to be set to form each unit cell space；Alternatively, longitudinally spaced several barrier pieces of arrangement, and if lateral arrangement
It does the barrier piece and is connect with each longitudinally arranged barrier piece vertical interlaced and enclose to set to form each unit cell space.
Preferably, when preparing several shown barrier pieces：Several plug-in wire ways are opened up in each barrier piece, and make each institute
The length direction that plug-in wire way is stated along the barrier piece is equally spaced, and each plug-in wire way is by barrier piece height side
To one end towards the other end extend；
When connecting several barrier pieces of several barrier pieces and longitudinally spaced arrangement that are arranged laterally at a spacing：So that in lateral cloth
The plug-in wire way for each barrier piece set is practised physiognomy with the corresponding plug-in wire way in longitudinally arranged each barrier piece
To mating.
Preferably, the manufacture of several rectangular array arrangements and the unit cell space of connection includes the following steps：
Several barrier pieces of preparation lateral arrangement connect to enclose with longitudinally arranged several barrier piece vertical interlaceds and set to be formed respectively
The unit cell space, and the barrier piece of each lateral arrangement is integrally formed with each longitudinally arranged barrier piece.
Preferably, when stacking connects the cellular sandwich layer, in each cellular sandwich layer adjacent to another honeycomb
The end of laminboard layer and/or departing from another cellular sandwich layer end connect distance piece.
The manufacturing method of the functionally gradient honeycomb sandwich board of the present invention, simple for process, production cost is low, passes through the manufacture work
The unit cell space size of each cellular sandwich layer for the functionally gradient honeycomb sandwich board that skill is produced is controllable, even tissue so that whole
The mechanical property (including statics and dynamic performance) of block functionally gradient honeycomb sandwich board in vertical direction presents stable
Functionally gradient characteristic.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 show the structural schematic diagram of one embodiment of functionally gradient honeycomb sandwich board provided by the invention.
Fig. 2 is shown in functionally gradient honeycomb sandwich board provided by the invention to be carried from a certain functional layer (cellular sandwich layer)
The schematic diagram of the unit cell space taken out；Wherein：T is the wall thickness of unit cell space, l is the length of side of unit cell space, h is unit cell space
Height (the namely floor height of the functional layer).
Fig. 3 show the preparation process of functionally gradient honeycomb sandwich board proposed by the present invention, i.e. metal material belt processes often
The process schematic representation of barrier piece in one functional layer.
The barrier piece that Fig. 4 show functionally gradient honeycomb sandwich board provided by the invention is assembled into a certain one functional layer (bee
Nest laminboard layer) process schematic representation.
Fig. 5 is shown in the present invention to be got up to form the function of whole layer-stepping each functional layer (cellular sandwich layer) stacking
The process schematic representation of one embodiment of gradient honeycomb sandwich board.
Fig. 6 is shown in the present invention to be got up to form the function of whole layer-stepping each functional layer (cellular sandwich layer) stacking
The process schematic representation of another embodiment of gradient honeycomb sandwich board.
Wherein, each reference numeral in figure：
1-cellular sandwich layer 2-distance piece, 11-barrier piece
12-tabs 100-unit, 111-plug-in wire ways of cell space
200-hollow holes.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment that Fig. 1~6 is described is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figs. 1 to 6, a kind of functionally gradient honeycomb sandwich board provided in an embodiment of the present invention, is mainly used for buffering
Or impact energy absorbs occasion, but not limited to this.Since functionally gradient honeycomb sandwich board has the excellent performance of other aspects, such as
Light structures, sound insulation, heat-insulated etc. also have good electro-magnetic wave absorption (electromagnetism for porous functionally gradient honeycomb sandwich board
Shielding) characteristic, so in Communication Engineering, the fields such as environment-friendly engineering have widely should way.
Specifically, as shown in Figure 1, the functionally gradient honeycomb sandwich board of the embodiment of the present invention includes at least two layers of cellular sandwich
Layer 1, each layer stacking of cellular sandwich layer 1 connection, for example, cellular sandwich layer 1 can be two layers, three layers, four layers and five layers
More than, setting superposition according to demand, gluing may be used for stacking connection or the mode of welding is realized；Each layer honeycomb
Laminboard layer 1 is equipped with the unit cell space 100 of several rectangular array arrangements and connection, during each unit cell space 100 all has
Emptying aperture 200 and cross section is rectangular；Positioned at the structure of each unit cell space 100 of the cellular sandwich layer 1 of same layer
Identical with material, structure and/or the material for being located at each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer are different.
Wherein, the structure of unit cell space 100 can refer to the wall thickness t, length of side l and height h of unit cell space 100.The knot of unit cell space 100
Structure is identical refer to unit cell space 100 wall thickness t, length of side l and height h all sames；And the structure difference of unit cell space 100 refers to list
Wall thickness t, the length of side l of first cell space 100 parameters as in height h at least are different.
More specifically, as shown in Figure 1, the functionally gradient honeycomb sandwich board of the embodiment of the present invention, if (at least by dried layer
Two layers) stacking of cellular sandwich layer 1 is formed by connecting, and has the unit cell space 100 of separate two-dimensional rectangular planar structure per one functional layer,
Also, the structure of each unit cell space 100 positioned at the cellular sandwich layer 1 of same layer is identical with material, is located at the honeycomb of adjacent layer
The structure and/or material of each unit cell space 100 of laminboard layer 1 are different, therefore to all have itself exclusive for every layer of cellular sandwich layer 1
Energy absorption functional characteristic is laminated each cellular sandwich layer 1 according to the demand of energy-absorbing, make its vertically on to slow
Punching or impact energy absorb the effect that functionally gradient formula is presented, and energy-absorbing effect may be implemented to predict and control, in passive protection
Possess the incomparable advantage of other each polyporous materials on security fields.Meanwhile the entirety of functionally gradient honeycomb sandwich board
Structure is relatively simple, and production cost is low, and 100 size of unit cell space of each layer cellular sandwich layer 1 is controllable, even tissue, knot
It is configured state diversification so that mechanical property (including the statics and dynamic of monoblock functionally gradient honeycomb sandwich board in vertical direction
Mechanical property) stable functionally gradient characteristic is presented.
As shown in Fig. 2, in the present embodiment, it is located at each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
The first different embodiment of structure is：Positioned at the wall of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
Thick t is different.It is i.e. different by the wall thickness t structures between the unit cell space 100 for the cellular sandwich layer 1 for setting adjacent layer, such as Fig. 1 institutes
It states, the wall thickness t of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer1≠t2≠t3, in this way can be in Vertical Square
Upwards so that the cellular sandwich layer 1 of adjacent layer has itself exclusive energy absorption functional characteristic, in this way, working as the functionally gradient bee
When sandwich panels are compressed or impacted, each cellular sandwich layer 1 will cave in, and pass through the list in each cellular sandwich layer 1
The energy of compression or impact is converted into the strain energy of material to sponge by the Collapse Deformation of first cell space 100.
As shown in Fig. 2, in the present embodiment, it is located at each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
Second different of embodiment of structure be：Positioned at the side of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
Long l is different.Similarly, different by the length of side l structures between the unit cell space 100 for the cellular sandwich layer 1 for setting adjacent layer, such as scheme
Described in 1, the length of side l of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer1≠l2≠l3, can be in Vertical Square
Upwards so that the cellular sandwich layer 1 of adjacent layer has itself exclusive energy absorption functional characteristic, in this way, working as the functionally gradient bee
When sandwich panels are compressed or impacted, each cellular sandwich layer 1 will cave in, and pass through the list in each cellular sandwich layer 1
The energy of compression or impact is converted into the strain energy of material to sponge by the Collapse Deformation of first cell space 100.
As shown in Fig. 2, in the present embodiment, it is located at each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
The third different embodiment of structure is：Positioned at the height of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer
It is different to spend h.Similarly, different by the height h structures between the unit cell space 100 for the cellular sandwich layer 1 for setting adjacent layer, such as scheme
Described in 1, the height h of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer1≠h2≠h3, can be in Vertical Square
Upwards so that the cellular sandwich layer 1 of adjacent layer has itself exclusive energy absorption functional characteristic, in this way, working as the functionally gradient bee
When sandwich panels are compressed or impacted, each cellular sandwich layer 1 will cave in, and pass through the list in each cellular sandwich layer 1
The energy of compression or impact is converted into the strain energy of material to sponge by the Collapse Deformation of first cell space 100.
As shown in Figure 1, functionally gradient honeycomb sandwich board provided in an embodiment of the present invention is by several functional layers (i.e. at least two
The cellular sandwich layer 1 of layer) it is laminated.Each functional layer is made of the unit cell space 100 of two-dimension square shape planar structure, together
100 structural parameters having the same of unit cell space (i.e. length of side l, wall thickness t and height h, as shown in Figure 2) in one functional layer.Separately
Outside, the material (such as aluminium alloy, titanium alloy) of the unit cell space 100 in same functional layer is also identical.But functional layer with
100 structural parameters of unit cell space and material between functional layer can be different, so as to according to the demand of energy-absorbing to each function
Layer is vertically ranked up, piles up and is laminated so that the allomeric function gradient honeycomb sandwich board being laminated is along Vertical Square
To the energy-absorbing effect for showing functionally gradient.
When the functionally gradient honeycomb sandwich board is compressed or impacted, in each functional layer of functionally gradient honeycomb sandwich board
Portion will cave in, and by the Collapse Deformation of the unit cell space 100 in each functional layer, the energy of compression or impact is converted into
The strain energy of material sponges.For a certain one functional layer, this layer of inside is by even tissue, uniform two dimension
Square unit cell space 100 formed, therefore the mechanical property (including statics and dynamic performance) of the functional layer then by
(i.e. this four factors of length of side l, wall thickness t and height h) and material determine the structural parameters of its individual unit cell space 100.Also
It is to say, as long as adjusting this four factors of the unit cell space 100 inside the functional layer, can makes the functional layer that itself is presented exclusive
Mechanical property.Furthermore, it is understood that since itself exclusive mechanical property can be presented in each functional layer, therefore can basis
It needs, the functional layer with different mechanical properties of several functional layers is laminated, to the functionally gradient for making stacking get up
Honeycomb sandwich board vertically has the mechanical property of functionally gradient formula.
In the present embodiment, as shown in figure 4, each layer cellular sandwich layer 1 includes several barrier pieces 11, rectangular array
Several barrier pieces 11 and longitudinally arranged several barrier pieces of arrangement and each unit cell space 100 of connection by lateral arrangement
The connection of 11 vertical interlaceds, which is enclosed, to be set to be formed.Specifically, if the cellular sandwich layer 1 of same layer passes through stem structure and the identical column of material
The connection composition of grid 11, i.e., it is several barrier pieces 11 being arranged laterally at a spacing and the barrier piece 11 of several longitudinally spaced arrangements are vertical
It is cross-linked, also, is enclosed between laterally adjacent two barrier pieces 11 and longitudinally adjacent two barrier pieces 11 and set to form unit
Cell space 100, and enclose and set the unit cell space 100 to be formed with rectangular hollow hole 200, the equal cross section of each unit cell space 100
It is rectangular.In this way, the variation of the size or material by preparing barrier piece 11, and laterally or longitudinally arrangement barrier piece 11
The different of spacing can be in the mechanical property of length of side l, wall thickness t and height h and material this four factors the unit cell determined.
Preferably, barrier piece 11 can be formed by band-like metal material belt processing of cutting.Such as may be used aluminium, steel or
The metal material belt of the materials such as person's alloy prepares barrier piece 11.
In the present embodiment, as shown in figure 4, in each barrier piece 11 of lateral arrangement in longitudinally arranged each column
The first connection type of grid 11 is：Each barrier piece 11 is equipped with several plug-in wire ways 111；Each plug-in wire way 111
Length direction along the barrier piece 11 is equally spaced, and each plug-in wire way 111 is by the 11 height side h of the barrier piece
To one end towards the other end extend；The plug-in wire way 111 in each barrier piece 11 of lateral arrangement is in corresponding
The plug-in wire way 111 of longitudinally arranged each barrier piece 11 is facing mating.Specifically, the length of plug-in wire way 111
For barrier piece 11 height h half either substantially the groove width of half plug-in wire way 111 it is identical as the thickness of barrier piece 11 or
The slightly larger than thickness of barrier piece 11 so may insure the column each other by the mating lateral arrangement of plug-in wire way 111
Grid 11 and longitudinally arranged barrier piece 11 have good stability, and can to avoid lateral arrangement barrier piece 11 and be longitudinally arranged
Barrier piece 11 protruded each other in short transverse.
Preferably, plug-in wire way 111 can set to be formed by way of punching press in punching on barrier piece 11.
Further, as shown in figs. 34, the one or both ends of each 11 short transverse of barrier piece are equipped with several be located at
Tabs 12 between the two adjacent plug-in wire ways 111, the tabs 12 are arranged perpendicular to the barrier piece 11, and each described
Tabs 12 is respectively positioned in the hollow hole 200 of the corresponding unit cell space 100.Specifically, tabs 12 and barrier piece 11 1
It is body formed, since tabs 12 is arranged perpendicular to barrier piece 11, when cellular sandwich layer 1 adjacent in this way stacking connects, can pass through
Tabs 12 increases the area directly or indirectly connected, can so reinforce the stabilization of the adjacent stacking connection of cellular sandwich layer 1
Property.
In the present embodiment, as shown in Fig. 1 and 5~6, the functionally gradient honeycomb sandwich board further includes several distance pieces 2, respectively
The cellular sandwich layer 1 is adjacent to the end of another cellular sandwich layer 1 and/or departing from another cellular sandwich layer 1
End be connected with the distance piece 2.Specifically, short transverse can be had each of the hollow hole 200 of perforation by distance piece 2
Unit cell is closed, and forms one piece of cellular sandwich layer 1 with sandwich, meanwhile, the adjacent unit cell space 100 of short transverse
It realizes and connects also by the distance piece 2, such as the adjacent unit cell space 100 of short transverse can pass through tabs 12 and barrier piece
Realize and connect that connection area is increased by this piece, and the stability of connection is further reinforced with distance piece 2 in 11 end.
In the present embodiment, in each barrier piece 11 of lateral arrangement in the of longitudinally arranged each barrier piece 11
Two kinds of connection types are：The barrier piece 11 being respectively arranged laterally at a spacing is vertical with the barrier piece 11 of each longitudinally spaced arrangement
Staggeredly it is integrally formed.Specifically, integrally formed design can save separately fabricated a number of barrier piece 11, disposably at
Type goes out the unit cell space 100 of several connections in monolayer honeycomb laminboard layer 1, the connection between the unit cell space 100 being thusly-formed
Stability is further reinforced
In the present embodiment, the opposite end of barrier piece 11 is equipped with chamfering (figure does not mark).The setting of chamfering can be to avoid
The barrier piece 11 of lateral arrangement is formed in longitudinally arranged barrier piece 11 interferes, and preferably connects crisscross barrier piece 11.
In conjunction with shown in Fig. 1~6, the embodiment of the present invention also provides a kind of manufacturing method of functionally gradient honeycomb sandwich board, packet
Include following steps：
Prepare at least two layers of cellular sandwich layer 1；
In the unit cell space 100 that several rectangular array arrangements and connection are arranged on each cellular sandwich layer 1, and so that
The unit cell space 100 all has hollow hole 200 and cross section is rectangular；
It is arranged so that the structure of each unit cell space 100 of the cellular sandwich layer 1 of same layer is identical with material；
If the cellular sandwich layer 1 with the different unit cell space 100 of stem structure and/or material is disposed adjacent
And connection is laminated.
Specifically, the manufacturing method of the functionally gradient honeycomb sandwich board of the embodiment of the present invention, simple for process, production cost
Low, 100 size of unit cell space of each cellular sandwich layer 1 of the functionally gradient honeycomb sandwich board gone out by the fabrication process can
Control, even tissue so that mechanical property (including statics and the power of monoblock functionally gradient honeycomb sandwich board in vertical direction
Learn performance) stable functionally gradient characteristic is presented.
In conjunction with shown in Fig. 3, in the present embodiment, wherein the first embodiment that unit cell space 100 manufactures is：Several is in square
Shape array is arranged and the manufacture of the unit cell space 100 of connection includes the following steps：
Prepare several barrier pieces 11；
Several barrier pieces 11 are arranged laterally at a spacing, and are longitudinally arranged the described of the barrier piece 11 and each lateral arrangement one by one
The connection of 11 vertical interlaced of barrier piece, which is enclosed, to be set to form each unit cell space 100；Alternatively, longitudinally spaced several barrier pieces 11 of arrangement,
And several barrier pieces 11 of lateral arrangement connect with each longitudinally arranged 11 vertical interlaced of barrier piece and enclose to set to form each institute
State unit cell space 100.
Further, in conjunction with shown in Fig. 3, when preparing several shown barrier pieces 11：It is opened up in each barrier piece 11 several
Plug-in wire way 111, and each plug-in wire way 111 is equally spaced along the length direction of the barrier piece 11, it is each described
Plug-in wire way 111 is extended by one end of 11 short transverse of barrier piece towards the other end；
When connecting several barrier pieces 11 of several barrier pieces 11 and longitudinally spaced arrangement that are arranged laterally at a spacing：So that in cross
The plug-in wire way 111 to each barrier piece 11 of arrangement and corresponding inserting in longitudinally arranged each barrier piece 11
Connecting groove 111 is facing mating.
In the present embodiment, wherein second of embodiment that unit cell space 100 manufactures is：Several rectangular arrays arrangement and
The manufacture of the unit cell space 100 of connection includes the following steps：
Several barrier pieces 11 of preparation lateral arrangement connect to enclose with longitudinally arranged several 11 vertical interlaceds of barrier piece sets shape
At each unit cell space 100, and the barrier piece 11 of each lateral arrangement is integrally formed with each longitudinally arranged barrier piece 11.
Further, in conjunction with shown in Fig. 5~6, when stacking connects the cellular sandwich layer 1, in each cellular sandwich layer 1
End adjacent to another cellular sandwich layer 1 and/or the end connection distance piece departing from another cellular sandwich layer 1
2。
In conclusion functionally gradient honeycomb sandwich board provided in an embodiment of the present invention and its manufacturing method have below at least
3 advantages：
First, 100 structure size of unit cell space inside each cellular sandwich layer 1 is controllable, the unit born of the same parents of each cellular sandwich layer 1
The pass consistency of body 100 is very high so that monoblock functionally gradient honeycomb sandwich board has very excellent performance；
Second, each cellular sandwich layer 1 of functionally gradient honeycomb sandwich board has a variety of stacked combination modes, vertically
Stepped construction variation is various, and cellular sandwich layer 1 is all kinds of varied, makes it that the energy-absorbing of powerful functionally gradient formula effect be presented
Fruit；
Third, the manufacturing process of functionally gradient honeycomb sandwich board is relatively simple, production cost is low, the function ladder produced
Spend honeycomb sandwich board structural form diversification, and the energy-absorbing effect of the functionally gradient honeycomb sandwich board produced may be implemented it is pre-
It surveys and controls.
Functionally gradient honeycomb sandwich board shown in Figure of description 1 is described further below：Shown in the embodiment
Functionally gradient honeycomb sandwich board point three one functional layers (cellular sandwich layer 1), each functional layer have independent sandwich (unit cell space
100), per the material of layer unit cell space 100, height h (i.e. the floor height of cellular sandwich layer 1), the wall thickness t of unit cell space 100 and
Size l can be different.That is, the wall thickness t of each unit cell space 100 of the cellular sandwich layer 1 of adjacent layer1≠t2≠t3；Phase
The height h of each unit cell space 100 of the cellular sandwich layer 1 of adjacent bed1≠h2≠h3；The cellular sandwich of adjacent layer
The length of side l of each unit cell space 100 of layer 11≠l2≠l3.So make the functionally gradient honeycomb sandwich board vertically on
Show the energy-absorbing effect of functionally gradient formula.Specifically, exactly when the functionally gradient honeycomb sandwich board is compressed or is rushed
When hitting, the sandwich of the minimum functional layer of relative density deformation can occurs and cave in first, absorb part compression or impact energy；When
Compression or impact energy continue and are continuously increased, and the next to the lowest functional layer of relative density, which will then deform, caves in, after
It is continuous to absorb this increased partial shrinkage or impact energy；When compression or impact energy again continue and be continuously increased, then, phase
To the laminboard layer of density from high to low, it will deform and cave in succession, constantly absorb to gradient type the energy of compression or impact
Amount, plays protected object the protection of duration.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (14)
1. a kind of functionally gradient honeycomb sandwich board, it is characterised in that：Including at least two layers of cellular sandwich layer, each layer honeycomb folder
Sandwich layer stacking connection；
Each layer cellular sandwich layer is equipped with the unit cell space of several rectangular array arrangements and connection, each unit cell space
It all has hollow hole and cross section is rectangular；
Structure positioned at each unit cell space of the cellular sandwich layer of same layer is identical with material, is located at the institute of adjacent layer
Structure and/or the material for stating each unit cell space of cellular sandwich layer are different.
2. functionally gradient honeycomb sandwich board according to claim 1, it is characterised in that：The honeycomb positioned at adjacent layer presss from both sides
The wall thickness and/or material of each unit cell space of sandwich layer are different.
3. functionally gradient honeycomb sandwich board according to claim 1, it is characterised in that：The honeycomb positioned at adjacent layer presss from both sides
The length of side and/or material of each unit cell space of sandwich layer are different.
4. functionally gradient honeycomb sandwich board according to claim 1, it is characterised in that：The honeycomb positioned at adjacent layer presss from both sides
The height and/or material of each unit cell space of sandwich layer are different.
5. according to Claims 1 to 4 any one of them functionally gradient honeycomb sandwich board, it is characterised in that：Each layer honeycomb
Laminboard layer includes several barrier pieces, and rectangular array is arranged and each unit cell space of connection passes through the several of lateral arrangement
Barrier piece connect to enclose to set to be formed with longitudinally arranged several barrier piece vertical interlaceds.
6. functionally gradient honeycomb sandwich board according to claim 5, it is characterised in that：Each barrier piece is equipped with several insert
Connecting groove；
Each plug-in wire way is equally spaced along the length direction of the barrier piece, and each plug-in wire way is by the column
One end of grid short transverse extends towards the other end；
In lateral arrangement each barrier piece the plug-in wire way with corresponding in longitudinally arranged each barrier piece
Plug-in wire way is facing mating.
7. functionally gradient honeycomb sandwich board according to claim 6, it is characterised in that：Each barrier piece short transverse
One or both ends are equipped with several tabs between the two adjacent plug-in wire ways, and the tabs is perpendicular to the barrier piece
Setting, and each tabs is respectively positioned in the hollow hole of the corresponding unit cell space.
8. functionally gradient honeycomb sandwich board according to claim 5, it is characterised in that：The column being respectively arranged laterally at a spacing
The barrier piece vertical interlaced of grid and each longitudinally spaced arrangement is integrally formed.
9. according to Claims 1 to 4 any one of them functionally gradient honeycomb sandwich board, it is characterised in that：The functionally gradient
Honeycomb sandwich board further includes several distance pieces, each cellular sandwich layer adjacent to another cellular sandwich layer end and/
Or it is connected with the distance piece departing from the end of another cellular sandwich layer.
10. a kind of manufacturing method of functionally gradient honeycomb sandwich board, it is characterised in that：Include the following steps：
Prepare at least two layers of cellular sandwich layer；
In the unit cell spaces of several rectangular arrays arrangement and connection are arranged on each cellular sandwich layer, and make the unit
Cell space all has hollow hole and cross section is rectangular；
It is arranged so that the structure of each unit cell space of the cellular sandwich layer of same layer is identical with material；
If the cellular sandwich layer with the different unit cell space of stem structure and/or material is disposed adjacent and the company of stacking
It connects.
11. the manufacturing method of functionally gradient honeycomb sandwich board according to claim 10, it is characterised in that：It is several rectangular
Array is arranged and the manufacture of the unit cell space of connection includes the following steps：
Prepare several barrier pieces；
Several barrier pieces are arranged laterally at a spacing, and the barrier piece for being longitudinally arranged the barrier piece and each lateral arrangement one by one hangs down
It directly is cross-linked to enclose and sets to form each unit cell space；Alternatively, longitudinally spaced several barrier pieces of arrangement, and several institutes of lateral arrangement
It states barrier piece and is connect with each longitudinally arranged barrier piece vertical interlaced and enclose to set to form each unit cell space.
12. the manufacturing method of functionally gradient honeycomb sandwich board according to claim 11, it is characterised in that：Prepare several institutes
When showing barrier piece：Several plug-in wire ways are opened up in each barrier piece, and make each plug-in wire way along the barrier piece
Length direction is equally spaced, and each plug-in wire way is extended by one end of the barrier piece short transverse towards the other end；
When connecting several barrier pieces of several barrier pieces and longitudinally spaced arrangement that are arranged laterally at a spacing：So that in lateral arrangement
The plug-in wire way of each barrier piece is facing slotting with the corresponding plug-in wire way in longitudinally arranged each barrier piece
Connect cooperation.
13. the manufacturing method of functionally gradient honeycomb sandwich board according to claim 10, it is characterised in that：It is several rectangular
Array is arranged and the manufacture of the unit cell space of connection includes the following steps：
Prepare lateral arrangement several barrier pieces connect with longitudinally arranged several barrier piece vertical interlaceds enclose set to be formed it is each described in
Unit cell space, and the barrier piece of each lateral arrangement is integrally formed with each longitudinally arranged barrier piece.
14. the manufacturing method of functionally gradient honeycomb sandwich board according to claim 10, it is characterised in that：Stacking connection institute
When stating cellular sandwich layer, in each cellular sandwich layer adjacent to the end of another cellular sandwich layer and/or departing from another
The end of the one cellular sandwich layer connects distance piece.
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| CN201810520667.2A CN108773111A (en) | 2018-05-28 | 2018-05-28 | Functionally gradient honeycomb sandwich board and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520667.2A CN108773111A (en) | 2018-05-28 | 2018-05-28 | Functionally gradient honeycomb sandwich board and its manufacturing method |
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| CN108773111A true CN108773111A (en) | 2018-11-09 |
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ID=64027762
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| CN201810520667.2A Pending CN108773111A (en) | 2018-05-28 | 2018-05-28 | Functionally gradient honeycomb sandwich board and its manufacturing method |
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| CN109483981A (en) * | 2018-11-22 | 2019-03-19 | 华侨大学 | A kind of honeycomb sandwich plate of embedded multi-level structure |
| CN110406178A (en) * | 2019-06-03 | 2019-11-05 | 哈尔滨工程大学 | Double gradient energy-obsorbing and damping sandwich structures of a kind of metal/composite material multilayer and preparation method thereof |
| CN110576654A (en) * | 2019-09-04 | 2019-12-17 | 华侨大学 | Be applied to sandwich structure on car collision energy-absorbing box |
| CN110641087A (en) * | 2019-07-17 | 2020-01-03 | 中车青岛四方机车车辆股份有限公司 | Rail train and composite apron board thereof |
| CN111703146A (en) * | 2020-06-23 | 2020-09-25 | 华侨大学 | Sandwich plate made of gradient chiral material and application of sandwich plate in passenger car body structure |
| CN112013718A (en) * | 2020-07-14 | 2020-12-01 | 清华大学苏州汽车研究院（相城） | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
| CN113022036A (en) * | 2021-02-04 | 2021-06-25 | 李昭锴 | Lightweight environment-friendly artificial board and manufacturing method thereof |
| CN113103638A (en) * | 2021-04-22 | 2021-07-13 | 大连理工大学 | Novel zero-Poisson ratio honeycomb structure and interlocking assembly manufacturing method thereof |
| WO2021140114A1 (en) * | 2020-01-10 | 2021-07-15 | Zephyros, Inc. | Reinforcement for a side-impact |
| CN114368190A (en) * | 2021-12-03 | 2022-04-19 | 华中科技大学 | Sound insulation is with containing double-deck composite sheet of piezoelectric array granule reinforcing gradient honeycomb core |
| WO2024045360A1 (en) * | 2022-08-31 | 2024-03-07 | 广东汇天航空航天科技有限公司 | Seat and aircraft |
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| CN110406178B (en) * | 2019-06-03 | 2021-08-20 | 哈尔滨工程大学 | Metal/composite material multilayer dual-gradient energy-absorbing and vibration-damping sandwich structure and preparation method thereof |
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| CN111703146A (en) * | 2020-06-23 | 2020-09-25 | 华侨大学 | Sandwich plate made of gradient chiral material and application of sandwich plate in passenger car body structure |
| CN112013718A (en) * | 2020-07-14 | 2020-12-01 | 清华大学苏州汽车研究院（相城） | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
| CN113022036A (en) * | 2021-02-04 | 2021-06-25 | 李昭锴 | Lightweight environment-friendly artificial board and manufacturing method thereof |
| CN113103638A (en) * | 2021-04-22 | 2021-07-13 | 大连理工大学 | Novel zero-Poisson ratio honeycomb structure and interlocking assembly manufacturing method thereof |
| CN114368190A (en) * | 2021-12-03 | 2022-04-19 | 华中科技大学 | Sound insulation is with containing double-deck composite sheet of piezoelectric array granule reinforcing gradient honeycomb core |
| CN114368190B (en) * | 2021-12-03 | 2022-12-20 | 华中科技大学 | Sound insulation is with containing double-deck composite sheet of piezoelectric array granule reinforcing gradient honeycomb core |
| WO2024045360A1 (en) * | 2022-08-31 | 2024-03-07 | 广东汇天航空航天科技有限公司 | Seat and aircraft |
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