CN113844112B - Composite honeycomb material - Google Patents
Composite honeycomb material Download PDFInfo
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- CN113844112B CN113844112B CN202111141855.2A CN202111141855A CN113844112B CN 113844112 B CN113844112 B CN 113844112B CN 202111141855 A CN202111141855 A CN 202111141855A CN 113844112 B CN113844112 B CN 113844112B
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- Prior art keywords
- honeycomb
- composite
- partition
- honeycomb plate
- folding
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- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 43
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 21
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Laminated Bodies (AREA)
Abstract
The application relates to a composite honeycomb material, which comprises a plurality of honeycomb plate bodies and a plurality of partition plates, wherein each partition plate is paved with a layer of honeycomb plate bodies to form a composite group, and the plurality of composite groups are sequentially overlapped; the honeycomb plate bodies are of a three-pump folding structure, when each honeycomb plate body is paved on the partition plate, the top and the bottom of each honeycomb plate body are connected with the adjacent partition plate, namely, the honeycomb plate bodies are communicated with the partition plate, and air flows in the honeycomb plate bodies; the application can adjust the number and angle of the layers according to the stress condition, has larger design space, adopts a three-pump folding structure, has good in-plane shearing resistance, in-plane isotropy, deformability and connectivity, and further improves the corrosion resistance and energy consumption capability of the composite honeycomb material.
Description
Technical Field
The application relates to a composite honeycomb material, and belongs to the technical field of honeycomb plates.
Background
The honeycomb plate is widely applied to the fields of construction, ships, aerospace and the like due to good environmental protection performance and buffering performance. The traditional honeycomb plate mostly adopts a regular hexahedral honeycomb lattice structure, and the structure is attractive and excellent in performance.
The honeycomb board is made of anisotropic materials, the coplanar bearing capacity of the anisotropic materials is far lower than that of the heterogeneous materials, so that the conventional honeycomb board cannot bear larger in-plane impact load, and the conventional honeycomb has different in-plane bearing capacities, so that the application range of the honeycomb board is greatly limited. In addition, the traditional honeycomb plate has sealing performance, and corrosion caused by condensation of moisture in the honeycomb plate often occurs in the actual use process, so that the service life of the honeycomb plate is greatly reduced. Thus, it is imperative to improve the in-plane isotropy and shear resistance of the honeycomb and its corrosion resistance, however, it is very difficult to improve the honeycomb performance without changing the conventional honeycomb structure and materials. It is known that the design space of the honeycomb plate is improved by changing the conventional regular hexagonal honeycomb form to achieve in-plane isotropy and enhance in-plane shear resistance and connectivity.
Disclosure of Invention
The application provides a composite honeycomb material which has high connectivity and shearing resistance and can reach isotropy in a plane.
The technical scheme adopted for solving the technical problems is as follows:
a composite honeycomb material comprises a plurality of honeycomb plate bodies and a plurality of partition plates, wherein a layer of honeycomb plate bodies are paved on each partition plate to form a composite group, and the plurality of composite groups are sequentially overlapped;
the honeycomb plate bodies are of a three-pump folding structure, when each honeycomb plate body is paved on the partition plate, the top and the bottom of each honeycomb plate body are connected with the adjacent partition plate, namely, the honeycomb plate bodies are communicated with the partition plate, and air flows in the honeycomb plate bodies;
as a further preferred aspect of the present application, the honeycomb panel body includes a plurality of tri-fold cells formed by splicing, each tri-fold cell is composed of four identical parallelograms, a three-dimensional coordinate system is established by taking an intersection point of the parallelograms as an origin, a transverse fold and a vertical fold are defined according to a fold direction, in the three-dimensional coordinate system, a line connecting ends of the two vertical folds is a Y-axis by taking a direction of the transverse fold as an X-axis, transverse folds pointing to a negative X-axis from the origin as a Gu Shehen are all three folds, and the tri-fold cells are folded towards a positive Z-axis according to the fold definition;
as a further preferred aspect of the present application, an inter-crease angle is formed between the transverse crease and the vertical crease, and the inter-crease angle is in the range of 45 ° -90 °;
as a further preferred aspect of the present application, each of the three-ply folded cells constrains the folded form by a lateral fold and a vertical fold when folded, and an included angle formed between the two lateral folds when folded is a folding angle ranging from 60 ° to 120 °.
As a further preferred aspect of the present application, when the honeycomb panel bodies of adjacent composite groups are stacked, the arrangement directions of the three-pump folded cells are different, and when the honeycomb panel bodies are arranged, relative corners are formed, and the angle range of the relative corners is 0 ° -90 °;
as a further preferred aspect of the present application, the three-pump folded cells in the one-layer honeycomb panel body are folded to be in contact with the surface of the separator by the coordinate system defined above, and the coordinate system formed by the three-pump folded cells in the adjacent-layer honeycomb panel body has a relative rotation angle with respect to the previous layer, and the adjacent layer is folded to be in contact with the surface of the separator by the coordinate system;
as a further preferred aspect of the present application, the thickness ratio of the separator to the honeycomb panel body is in the range of 0.1 to 10;
as a further preferable mode of the application, a layer of honeycomb plate body is paved on each partition plate, and the contact parts of the honeycomb plate body and the partition plate are connected by brazing;
as a further preferable aspect of the present application, the separator and the honeycomb panel body are both made of aluminum plates;
as a further preferred aspect of the present application, the separator is parallel to the honeycomb panel body.
Through the technical scheme, compared with the prior art, the application has the following beneficial effects:
1. in the composite honeycomb material provided by the application, the honeycomb plate body is of a three-pump folding structure, and when the out-of-plane load is born, the expansion process is carried out to consume energy, so that the out-of-plane bearing capacity of the traditional honeycomb plate is considered, and when the in-plane load is born, the in-plane shearing resistance is improved through the integral deformation of the honeycomb plate body;
2. according to the composite honeycomb material provided by the application, one layer of honeycomb plate body is paved on each partition plate to form a composite group, a plurality of composite groups are sequentially overlapped, and when the composite group is paved, the swing positions of each layer of honeycomb plate body are different, so that isotropy in a plane is achieved, and the folding and unfolding directions of different layers of honeycomb plate bodies are different when the structure bears load, so that mutual constraint among different layers can be achieved, and higher bearing capacity is achieved.
Drawings
The application will be further described with reference to the drawings and examples.
FIG. 1 is a schematic perspective view of a preferred embodiment provided by the present application;
FIG. 2 is a schematic view of the structure of a honeycomb panel body according to a preferred embodiment of the present application;
FIG. 3 is a schematic illustration of the placement of adjacent composite sets of honeycomb panel bodies in a stacked configuration in accordance with a preferred embodiment of the present application;
FIG. 4 is a schematic diagram of a single folded cell structure of a preferred embodiment of the present application;
fig. 5 is a schematic cross-sectional view of a honeycomb panel body in accordance with a preferred embodiment of the present application.
In the figure: 1 is a partition board, 2 is a honeycomb board body, 21 is a transverse crease, 22 is a vertical crease, 23 is an included angle between creases, and 24 is a folding angle.
Detailed Description
The application will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present application. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present application.
The traditional honeycomb plate adopts a regular hexagon structure, which is a closed structure, namely, air in each honeycomb cell cannot circulate with the outside, if the air in the honeycomb cell is hydraulically condensed, the corrosion probability of the honeycomb is greatly increased, so in order to improve the corrosion resistance of the material, the application provides a composite honeycomb material, and the three-pump folding type structure is adopted to replace the regular hexagon structure of the traditional honeycomb plate, as shown in fig. 1, the application is a three-dimensional schematic diagram of an integral structure, and comprises a plurality of honeycomb plate bodies 2 and a plurality of partition plates 1, each partition plate 1 is paved with a layer of honeycomb plate bodies 2 which are sequentially stacked, namely, a partition plate 1 is arranged between the adjacent honeycomb plate bodies 2; here, the honeycomb plate body 2 is of a three-pump folding structure, when bearing an out-of-plane load, the honeycomb plate body 2 enters an unfolding process and consumes energy to enable the out-of-plane bearing capacity of the traditional honeycomb plate to be considered, when bearing an in-plane load, the in-plane shearing resistance is improved through integral deformation of the honeycomb plate body 2, when each honeycomb plate body 2 is paved on the partition plate 1, the top and the bottom of the honeycomb plate body 2 are connected with the adjacent partition plate 1, namely, the honeycomb plate body 2 is communicated with the partition plate 1, and air flow enters from one end of the honeycomb plate body 2 in the coplanar direction, flows in the honeycomb plate body 2 and flows out from the other end. In the application, the honeycomb plate body 2 and the partition plates 1 are made of aluminum plates, and the honeycomb plate body 2 and the adjacent partition plates 1 are connected by brazing.
The following describes the three-ply folded cells forming the honeycomb panel body 2 specifically, that is, the honeycomb panel body 2 includes a plurality of three-ply folded cells formed by splicing, as shown in fig. 3, each three-ply folded cell is composed of four parallelograms, for more clearly describing the structure, a three-dimensional coordinate system is established by taking the center of the intersection of the parallelograms as the origin, the transverse crease 21 and the vertical crease 22 are respectively defined according to the crease direction, in the three-dimensional coordinate system, the direction of the transverse crease 21 is taken as the X axis, the connecting line of the endpoints of the two vertical creases 22 is taken as the Y axis, the transverse crease pointing to the negative X axis from the origin is taken as the Gu Shehen, the other three creases are all mountain creases, and the three-ply folded cell is folded towards the positive Z axis according to the crease definition; here, an inter-crease angle 23 is formed between the transverse crease 21 and the vertical crease 22, and each three-ply folding cell constrains the folding form by the transverse crease 21 and the vertical crease 22 when folding, and an angle formed between the two transverse creases 21 when folding is a folding angle 24.
When a plurality of composite groups are sequentially stacked, as the bearing capacity of each direction in the plane is different due to the honeycomb plates in a single direction, in the preferred embodiment provided by the application, the three-pump folding cells of one layer of honeycomb plate body 2 are used for enabling two three-pump folding cell surfaces formed by a positive Y axis and an X axis to be in contact with the surface of the partition plate 1, and the three-pump folding cells of the adjacent layer of honeycomb plate body 2 are used for enabling two three-pump folding cell surfaces formed by a negative X axis and the Y axis or two three-pump folding cell surfaces formed by a positive X axis and the Y axis to be in contact with the surface of the partition plate 1, so that isotropy in the plane can be achieved, and meanwhile, the folding and unfolding directions of different layers of the structure are different when bearing loads are different, so that mutual restraint among different layers can be realized, and higher bearing capacity is achieved; in fig. 3, a coordinate system about XYZ is reset, that is, the first layer of honeycomb panel bodies 2 is arranged along the X-axis direction, the second layer of honeycomb panel bodies 2 is arranged along the Y-axis direction, and the relative angle between the two directions is 90 °, where the relative angle is introduced, that is, the arrangement directions of the three-pump folded cells are different when the honeycomb panel bodies 2 of adjacent composite groups are stacked, and the relative angle is formed when the honeycomb panel bodies 2 of adjacent composite groups are arranged.
In order to better realize the flowing capability of air in the honeycomb plate body 2 and reduce the moisture in the honeycomb plate body 2, the included angle 23, the folding angle 24 and the angle of relative rotation angle are all limited, the range of the included angle 23 is 45 degrees to 90 degrees, the range of the folding angle 24 is 60 degrees to 120 degrees, and the range of the angle of relative rotation angle is 0 degrees to 90 degrees.
In the application, the thickness ratio of the partition board 1 to the honeycomb board body 2 is also limited, and the thickness ratio of the partition board 1 to the honeycomb board body 2 is in the range of 0.1-10.
Of course, in practical application, the placement direction and the layering number of the honeycomb panel body 2 can be correspondingly designed according to the use requirement, so that a larger design space is reserved, and the flexibility of the whole structure is enhanced.
Fig. 4 and 5 show a preferred embodiment of the present application, in which the structure of the honeycomb panel body 2 is mainly controlled by the transverse folds 21, the vertical folds 22, the included angle 23 between the transverse folds 21 and the vertical folds 22, and the folding angle 24, and the preferred embodiment shows that the length of the transverse folds 21 is 20mm, the length of the vertical folds 22 is 20mm, the included angle 23 is 80 °, and the folding angle 24 is 74 °. The partition boards 1 and the partition boards 1 are parallel to each other, the thickness of the partition boards 1 is 0.5mm, the thickness of the honeycomb board body 2 is 0.5mm, and the distance between the partition boards 1 and the partition boards 1 is determined by the height of the honeycomb board body 2, and in the preferred embodiment, the distance is 16mm.
As can be seen from the above description, the composite honeycomb material adopted by the application can solve the defects of different bearing capacities in all directions in the plane of the honeycomb plate and poor connectivity in the prior art, and the parameters of the transverse crease 21, the vertical crease 22, the included angle 23 and the folding angle 24 in the honeycomb plate body 2 are changed, so that the mechanical properties of the honeycomb plate body 2 can be changed, the material has a larger design space, and the three-pump folding structure is adopted to improve the flowing capacity of air in the structure, reduce the water vapor in the honeycomb plate body 2 and further achieve the purpose of improving the corrosion resistance of the material.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" in the present application means that each exists alone or both exist.
"connected" as used herein means either a direct connection between components or an indirect connection between components via other components.
With the above-described preferred embodiments according to the present application as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. A composite honeycomb material achieves higher bearing capacity and improves the corrosion resistance of the material, which is characterized in that: the honeycomb plate comprises a plurality of honeycomb plate bodies (2) and a plurality of partition plates (1), wherein a layer of honeycomb plate bodies (2) are paved on each partition plate (1) to form a composite group, and the plurality of composite groups are sequentially overlapped;
the honeycomb plate bodies (2) are of a three-pump folding structure, when each honeycomb plate body (2) is paved on the partition plate (1), the top and the bottom of each honeycomb plate body (2) are connected with the adjacent partition plate (1), namely, the honeycomb plate bodies (2) are communicated with the partition plate (1), and air flows in the honeycomb plate bodies (2);
the honeycomb panel body (2) comprises a plurality of three-pump folding cells which are formed by splicing, each three-pump folding cell is formed by four identical parallelograms, a three-dimensional coordinate system is established by taking the intersection point of the parallelograms as an origin, a transverse crease (21) and a vertical crease (22) are respectively defined according to crease directions, in the three-dimensional coordinate system, the direction of the transverse crease (21) is taken as an X axis, the connecting line of the endpoints of the two vertical creases (22) is taken as a Y axis, the transverse crease (21) pointing to a negative X axis from the origin is taken as a Gu Shehen, the other three creases are mountain creases, and the three-pump folding cells are folded towards the positive Z axis according to crease definition;
an included angle (23) between folds is formed between the transverse folds (21) and the vertical folds (22), and the included angle (23) between folds is 45-90 degrees;
each three-pump folding cell is restrained in a folding mode through a transverse crease (21) and a vertical crease (22) when being folded, an included angle formed between the two transverse creases (21) is a folding angle (24), and the range of the folding angle (24) is 60-120 degrees;
when the honeycomb board bodies (2) of adjacent composite groups are stacked, the arrangement directions of the three-pump folding cells are different, and relative corners are formed during arrangement, wherein the angle range of the relative corners is 0-90 degrees;
the thickness ratio of the partition board (1) to the honeycomb board body (2) is in the range of 0.1-10.
2. The composite honeycomb material of claim 1, wherein: the three-pump folding cells in one layer of honeycomb plate body (2) are folded through the coordinate system defined above to be in contact with the surface of the partition plate (1), the coordinate system formed by the three-pump folding cells in the adjacent layer of honeycomb plate body (2) has relative rotation angle with the previous layer, and the adjacent layer is folded through the coordinate system to be in contact with the surface of the partition plate (1).
3. The composite honeycomb material of claim 1, wherein: each partition board (1) is paved with a layer of honeycomb plate body (2), and the contact parts of the honeycomb plate body and the partition board are connected by brazing.
4. The composite honeycomb material of claim 1, wherein: the partition board (1) and the honeycomb board body (2) are manufactured by adopting aluminum plates.
5. The composite honeycomb material of claim 1, wherein: the partition board (1) and the honeycomb board body (2) are mutually parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141855.2A CN113844112B (en) | 2021-09-28 | 2021-09-28 | Composite honeycomb material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141855.2A CN113844112B (en) | 2021-09-28 | 2021-09-28 | Composite honeycomb material |
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| Publication Number | Publication Date |
|---|---|
| CN113844112A CN113844112A (en) | 2021-12-28 |
| CN113844112B true CN113844112B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111141855.2A Active CN113844112B (en) | 2021-09-28 | 2021-09-28 | Composite honeycomb material |
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