阅读说明：本技术 一种复合蜂窝材料 (Composite honeycomb material ) 是由 蔡建国 孙逸夫 张骞 马瑞君 冯健 于 2021-09-28 设计创作，主要内容包括：本发明涉及一种复合蜂窝材料,包括若干蜂窝板本体和若干隔板,每块隔板上均铺设一层蜂窝板本体为一复合组,若干复合组顺次叠设；所述蜂窝板本体为三浦折叠型结构,每块蜂窝板本体铺设在隔板时,蜂窝板本体的顶部、底部均与相邻隔板相连,即蜂窝板本体与隔板连通,气流在蜂窝板本体内流动；本发明可以根据受力情况调整铺层数量和铺层角度,具有较大的设计空间,采用三浦折叠型结构,拥有良好的平面内抗剪切性、平面内各向同性、可变形性和连通性,进而提升复合蜂窝材料的抗腐蚀能力和耗能能力。(The invention relates to a composite honeycomb material, which comprises a plurality of honeycomb plate bodies and a plurality of partition plates, wherein a layer of honeycomb plate body is laid on each partition plate to form a composite group, and the composite groups are sequentially stacked; the honeycomb plate body is of a three-pump folding structure, when each honeycomb plate body is laid on the partition plate, the top and the bottom of each honeycomb plate body are connected with the adjacent partition plates, namely the honeycomb plate body is communicated with the partition plate, and air flow flows in the honeycomb plate body; the invention can adjust the number of the layers and the angle of the layers according to the stress condition, has larger design space, adopts a three-pump folding structure, and has good in-plane shear resistance, in-plane isotropy, deformability and connectivity, thereby improving the corrosion resistance and energy consumption capability of the composite honeycomb material.)

1. A composite honeycomb material, characterized by: the honeycomb plate comprises a plurality of honeycomb plate bodies (2) and a plurality of partition plates (1), wherein a layer of honeycomb plate body (2) is laid on each partition plate (1) to form a composite group, and the composite groups are sequentially stacked;

the honeycomb plate body (2) is of a three-pump folding structure, when each honeycomb plate body (2) is laid on the partition plate (1), the top and the bottom of each honeycomb plate body (2) are connected with the adjacent partition plates (1), namely, the honeycomb plate body (2) is communicated with the partition plates (1), and air flow flows in the honeycomb plate body (2).

2. The composite honeycomb material of claim 1, wherein: the honeycomb plate body (2) is formed by splicing a plurality of three-pump folding cells, each three-pump folding cell is composed of 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 the directions of the creases, in the three-dimensional coordinate system, the direction of the transverse crease (21) is taken as an X axis, a connecting line of end points of the two vertical creases (22) is taken as a Y axis, the transverse crease (21) pointing to a negative X axis by taking the origin as a starting point is taken as a valley crease, the other three creases are all mountain creases, and the three-pump folding cells are folded towards the positive Z axis direction according to the crease definition.

3. The composite honeycomb material of claim 2, wherein: an included angle (23) between the folds is formed between the transverse folds (21) and the vertical folds (22), and the range of the included angle (23) between the folds is 45-90 degrees.

4. The composite honeycomb material of claim 2, wherein: each three-pump folding cell restrains the folding form through a transverse crease (21) and a vertical line crease (22) when being folded, an included angle formed between the two transverse creases (21) when being folded is a folding angle (24), and the range of the folding angle (24) is 60-120 degrees.

5. The composite honeycomb material of claim 2, wherein: when the honeycomb plate bodies (2) of adjacent composite groups are overlapped, the arrangement directions of the three-pump folding cells are different, and relative rotation angles are formed during arrangement, and the angle range of the relative rotation angles is 0-90 degrees.

6. The composite honeycomb material of claim 5, wherein: the three-pump folding cells in the honeycomb plate body (2) of one layer are folded through the above-defined coordinate system to be in surface contact with the partition plate (1), the coordinate system formed by the three-pump folding cells in the honeycomb plate body (2) of the adjacent layer has a relative rotation angle with the previous layer, and the adjacent layer is folded through the coordinate system to be in surface contact with the partition plate (1).

7. The composite honeycomb material of claim 1, wherein: the thickness ratio of the partition board (1) to the honeycomb plate body (2) ranges from 0.1 to 10.

8. The composite honeycomb material of claim 1, wherein: a layer of honeycomb plate body (2) is laid on each partition plate (1), and the contact parts of the honeycomb plate body and the partition plate body are connected by brazing.

9. The composite honeycomb material of claim 1, wherein: the partition plate (1) and the honeycomb plate body (2) are both made of aluminum plates.

10. The composite honeycomb material of claim 1, wherein: the partition plate (1) and the honeycomb plate body (2) are parallel to each other.

Technical Field

The invention relates to a composite honeycomb material, and belongs to the technical field of honeycomb plates.

Background

The honeycomb plate has good environmental protection performance and buffering performance, and is widely applied to the fields of buildings, ships, aerospace and the like. The traditional cellular board mostly adopts a regular hexahedron cellular structure which is more beautiful and has excellent performance.

The cellular board is made of anisotropic materials, the coplanar bearing capacity of the cellular board is far lower than that of the non-coplanar bearing capacity, so that the traditional cellular board cannot bear large in-plane impact load, and the bearing capacities of the traditional cellular boards are different in the plane, so that the application range of the cellular board is greatly limited. In addition, traditional honeycomb panel has the closure, and the inside corruption that leads to because of the aqueous vapor condenses of honeycomb panel often appears in the in-service use, has reduced the life of honeycomb panel greatly. Therefore, it is urgent to improve the in-plane isotropy and shear resistance of the honeycomb panel and the corrosion resistance thereof, however, it is very difficult to improve the performance of the honeycomb panel without changing the structure and material of the conventional honeycomb panel. Therefore, the design space of the honeycomb plate is improved by changing the traditional regular hexagonal honeycomb form to achieve in-plane isotropy and enhance in-plane shear resistance and connectivity.

Disclosure of Invention

The invention provides a composite honeycomb material which has high connectivity and shear resistance and can achieve in-plane isotropy.

The technical scheme adopted by the invention 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 body is laid on each partition plate to form a composite group, and the composite groups are sequentially stacked;

the honeycomb plate body is of a three-pump folding structure, when each honeycomb plate body is laid on the partition plate, the top and the bottom of each honeycomb plate body are connected with the adjacent partition plates, namely the honeycomb plate body is communicated with the partition plate, and air flow flows in the honeycomb plate body;

as a further preferred aspect of the present invention, the honeycomb panel body includes a plurality of three-pump folding cells spliced together, each three-pump folding cell is composed of four identical parallelograms, a three-dimensional coordinate system is established with an intersection point of the parallelograms as an origin, a transverse fold and a vertical fold are respectively defined according to a fold direction, in the three-dimensional coordinate system, a direction of the transverse fold is taken as an X axis, a connecting line of end points of the two vertical folds is taken as a Y axis, a transverse fold pointing to a negative X axis with the origin as a starting point is taken as a valley fold, the remaining three folds are all mountain folds, and the three-pump folding cells are folded in a positive Z axis direction according to the fold definition;

as a further optimization of the invention, an included angle between the transverse creases and the vertical creases is formed, and the included angle between the creases ranges from 45 degrees to 90 degrees;

as a further preferred aspect of the present invention, each of the three-pump folded cells constrains the folding form by transverse creases and vertical creases when folded, and an angle formed between the two transverse creases when folded is a folding angle, and the folding angle ranges from 60 ° to 120 °.

As a further preferable aspect of the present invention, when the honeycomb panel bodies of adjacent composite groups are stacked, the arrangement directions of the three-pump folded cells are different, and a relative corner is formed when the three-pump folded cells are arranged, and the angle range of the relative corner is 0 ° to 90 °;

as a further preferred aspect of the present invention, the three-pump folded cells in the honeycomb panel body of one layer are folded by the above-defined coordinate system to contact with the surface of the partition plate, the coordinate system formed by the three-pump folded cells in the honeycomb panel body of the adjacent layer has a relative rotation angle with the previous layer, and the adjacent layer is folded by the coordinate system to contact with the surface of the partition plate;

as a further preferable aspect of the present invention, a thickness ratio of the partition board to the honeycomb panel body ranges from 0.1 to 10;

as a further optimization of the invention, a layer of honeycomb plate body is laid on each clapboard, and the contact parts of the honeycomb plate body and the clapboard are connected by brazing;

as a further preferred aspect of the present invention, the partition plate and the honeycomb plate body are both made of aluminum plates;

as a further preferred aspect of the present invention, the partition and the honeycomb plate body are parallel to each other.

Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. in the composite honeycomb material provided by the invention, the honeycomb plate body is of a three-pump folding structure, and enters the unfolding process when bearing out-plane load so as to consume energy, so that the composite honeycomb material has the different-plane bearing capacity of the traditional honeycomb plate, and the in-plane shear resistance is improved through the integral deformation of the composite honeycomb plate when bearing in-plane load;

2. according to the composite honeycomb material provided by the invention, the honeycomb plate bodies are paved on each partition plate to form a composite group, the composite groups are sequentially overlapped, the arrangement positions of the honeycomb plate bodies are different during arrangement, so that the isotropy in a plane is achieved, the folding and unfolding directions of the honeycomb plate bodies with different layers are different during load bearing of the structure, the mutual restraint among different layers can be achieved, and the higher load bearing capacity is achieved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is an overall perspective view of a preferred embodiment provided by the present invention;

FIG. 2 is a schematic structural diagram of a honeycomb panel body according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of the preferred embodiment of the present invention showing the placement of honeycomb panel bodies of adjacent composite groups when stacked;

FIG. 4 is a schematic diagram of a single three-pump folded cell according to a preferred embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a honeycomb panel body in a preferred embodiment of the invention.

In the figure: 1 is the baffle, 2 is the honeycomb body, 21 is horizontal crease, 22 is vertical crease, 23 is the contained angle between the crease, 24 is the folded angle.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

The traditional honeycomb plate is of a regular hexagon structure, and is of a closed structure, namely air in each honeycomb cell cannot be communicated with the outside, if water condensation occurs in the air in the honeycomb cell, the corrosion probability of the honeycomb is greatly increased, so that in order to improve the corrosion resistance of the material, the composite honeycomb material is provided, a three-pump folding structure is adopted to replace the regular hexagon structure of the traditional honeycomb plate, as shown in figure 1, the composite honeycomb material is a three-dimensional schematic diagram of the whole structure of the composite honeycomb plate 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 body 2 to form a composite group, the plurality of composite groups are sequentially overlapped, namely, one partition plate 1 is arranged between every two adjacent honeycomb plate bodies 2; here honeycomb panel body 2 is three pu's folded form structure, it gets into the expansion process and consumes energy and makes it compromise the different face bearing capacity of traditional honeycomb panel when bearing the off-plane load, through its whole deformation improvement plane internal shear resistance performance when bearing the in-plane load, every honeycomb panel body 2 is laid when baffle 1, honeycomb panel body 2's top, the bottom all links to each other with adjacent baffle 1, honeycomb panel body 2 and baffle 1 intercommunication promptly, the air current gets into from 2 coplanar ascending one end of honeycomb panel body, flow in honeycomb panel body 2, flow from the other end again. In this application, the material of preparation honeycomb panel body 2 and baffle 1 all adopts aluminum plate preparation, adopts brazed connection between honeycomb panel body 2 and the adjacent baffle 1.

Specifically, the three-pump folding cell elements forming the honeycomb panel body 2 are described below, that is, the honeycomb panel body 2 includes a plurality of three-pump folding cell elements which are spliced together, as shown in fig. 3, each three-pump folding cell element is composed of four parallelograms, in order to describe the structure more clearly, a three-dimensional coordinate system is established with the center of the intersection point of the parallelograms as an origin, a transverse crease 21 and a vertical crease 22 are respectively defined according to the crease directions, in the three-dimensional coordinate system, the direction of the transverse crease 21 is taken as an X axis, a connecting line of end points of the two vertical creases 22 is taken as a Y axis, the transverse crease which points to a negative X axis with the origin as a starting point is taken as a valley crease, the remaining three creases are all mountain creases, and the three-pump folding cell elements are folded in a positive Z axis direction according to the crease definitions; here, an included angle 23 between the transverse creases 21 and the vertical creases 22 is formed, each three-pump folding cell restrains the folding form through the transverse creases 21 and the vertical creases 22 when being folded, and the included angle formed between the two transverse creases 21 when being folded is a folding angle 24.

When a plurality of composite groups are sequentially stacked, because the cellular boards in a single direction can cause different bearing capacities in a plane, in the preferred embodiment provided by the application, the three-pump folded cell of one layer of the cellular board body 2 is in surface contact with the partition board 1 by locating two three-pump folded cell faces formed by a positive Y axis and an X axis, and the three-pump folded cell of the adjacent layer of the cellular board body 2 is in surface contact with the partition board 1 by locating two three-pump folded cell faces formed by a negative X axis and a Y axis or two three-pump folded cell faces formed by a positive X axis and a Y axis, so that the in-plane isotropy can be achieved, meanwhile, the folding and unfolding directions of different layers are different when the structure bears loads, and further, the mutual constraint among the different layers can be achieved, and the higher bearing capacity can be achieved; in fig. 3, a coordinate system related to XYZ is newly set, 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 rotation angle of the placing directions of the two is 90 °, which introduces the relative rotation angle, 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 rotation angle is formed when the three-pump folded cells are arranged.

In order to better realize the flowing capacity 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 the relative rotation angle are all limited, wherein the included angle 23 ranges from 45 degrees to 90 degrees, the folding angle 24 ranges from 60 degrees to 120 degrees, and the angle of the relative rotation angle ranges from 0 degrees to 90 degrees.

In the application, the thickness ratio of the partition board 1 to the honeycomb plate body 2 is also limited, and the thickness ratio of the partition board 1 to the honeycomb plate body 2 ranges from 0.1 to 10.

In practical application, the placing direction and the number of the layers of the honeycomb plate 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 provided by the present application, and the structure of the honeycomb panel body 2 is mainly controlled by the transverse creases 21, the vertical creases 22, the included angles 23 between the transverse creases 21 and the vertical creases 22, and the folding angles 24, where the length of the transverse creases 21 is 20mm, the length of the vertical creases 22 is 20mm, the included angles 23 are 80 °, and the folding angles 24 are 74 °. The partition board 1 and the partition board 1 are parallel to each other, the thickness of the partition board 1 is 0.5mm, the thickness of the honeycomb plate body 2 is 0.5mm, and the distance between the partition board 1 and the partition board 1 is determined by the height of the honeycomb plate body 2, and is 16mm in the preferred embodiment.

According to the explanation, the composite honeycomb material can overcome the defects of different bearing capacities and poor connectivity in each direction in the plane of the honeycomb plate 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 property of the honeycomb plate body 2 can be changed, the material has a larger design space, the flow capacity of air in the structure is improved by adopting a three-pump folding structure, water vapor in the honeycomb plate body 2 is reduced, and the purpose of improving the corrosion resistance of the material is further achieved.

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" as used herein is intended to include both the individual components or both.

The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.