A double-layer deformable honeycomb structure with a jujube-shaped unit cell

Abstract

The invention discloses a double-layer deformable honeycomb structure of a jujube-shaped unit cell, which belongs to the field of flexible structure design of a variant aircraft. The jujube-shaped unit cell is composed of an elastic unit, and there are curved plates at different levels on the elastic unit; the curved plates at different levels are bent in different directions, and the ends of the curved plates at the same level on adjacent elastic units are welded together to form a jujube-shaped unit cell; according to the different bending directions of the curved plates at the same level, unit cell structures of different shapes can be formed, including directly connected jujube-shaped units and obliquely connected jujube-shaped units. The unit cell structure can be easily copied and combined to form a double-layer or three-layer deformable honeycomb structure. The jujube-shaped unit cell can achieve large telescopic deformation in the plane and has strong anti-bending ability outside the plane. The unit is easy to copy and can be combined into a variety of flexible deformable structures. The deformable honeycomb structure formed has strong designability and is easy to process.

Description

Technical Field

[0001] The invention belongs to the field of flexible structure design of variant aircraft, and in particular relates to a double-layer deformable honeycomb structure of a jujube-shaped unit cell. Background Art

[0002] Morphing aircraft can change the shape of the aircraft structure in real time during flight, so as to have the best aerodynamic performance in different flight conditions within a wide speed range. Flexible structure is one of the keys to realize aircraft morphing, and its technical difficulties are reflected in the following aspects: 1. The shape of the structure must be able to change smoothly and flexibly, especially the wing structure must have a large deformation in the plane; 2. The flexible structure must have sufficient out-of-plane stiffness to withstand aerodynamic loads. Therefore, flexible structure design technology has received widespread attention recently.

[0003] In order to solve the contradiction between in-plane deformation and out-of-plane stiffness of flexible structures, people have studied a variety of ingenious structural forms. Among them, the deformable honeycomb structure has the characteristics of light weight, large in-plane deformation and strong out-of-plane bearing capacity, and is one of the more ideal structural forms. Summary of the invention

[0004] In view of the above-mentioned technical defects, the present invention proposes a double-layer deformable honeycomb structure with a jujube-shaped unit cell. The jujube-shaped unit cell can achieve large telescopic deformation within the plane and has strong bending resistance outside the plane. The unit is easy to replicate and can be combined into a variety of flexible deformable structures. The formed deformable honeycomb structure has strong designability and is easy to process.

[0005] The present invention is achieved in that:

[0006] A double-layer deformable honeycomb structure of a jujube-shaped unit cell, characterized in that the jujube-shaped unit cell is composed of an elastic unit, the elastic unit includes a connecting plate and curved plates at the upper and lower ends of the connecting plate, that is, it is divided into three sections in an up-down order, the middle section is the connecting plate, the section above the connecting plate is the upper end, and the section below the connecting plate is the lower end; the curved plates further include curved plates at different levels; the curved plates at different levels are bent in different directions, but the curved plates at different levels are perpendicular to the curved plate surface;

[0007] The ends of the bending plates on the same level of four adjacent elastic units, namely, upper left, lower left, upper right, and lower right, are welded together to form a jujube-shaped unit cell structure; according to the different bending directions of the bending plates on the same level of the elastic units, obliquely connected jujube-shaped unit cells and directly connected jujube-shaped unit cells can be formed;

[0008] The two curved plates of the upper lower layer and the lower upper layer of the obliquely connected jujube-shaped unit cell are bent to one side, and the two curved plates of the upper upper layer and the lower lower layer are bent to the other side, adopting a staggered bending manner; one obliquely connected jujube-shaped unit cell is composed of four elastic units, and multiple obliquely connected jujube-shaped unit cells are replicated and expanded into a double-layer deformable honeycomb structure; the upper left elastic unit is that the upper lower layer and the lower upper layer are biased to the left, and the upper upper layer and the lower lower layer are biased to the right; the upper right elastic unit is that the upper upper layer and the lower lower layer are biased to the left, and the upper lower layer and the lower upper layer are biased to the right; the lower right elastic unit is that the upper lower layer and the lower upper layer are biased to the left, and the upper upper layer and the lower lower layer are biased to the right; the lower left elastic unit is that the upper upper layer and the lower lower layer are biased to the left, and the upper lower layer and the lower upper layer are biased to the right.

[0009] The bending mode of the directly connected jujube-shaped single-cell bending plate is that the same layer bends to the same side, that is, the two bending plates of the upper middle layer and the lower middle layer bend to one side, and the four bending plates of the upper upper layer, the lower upper layer, the upper lower layer and the lower lower layer bend to the other side; a directly connected jujube-shaped single cell is composed of four elastic units, and multiple directly connected jujube-shaped single cells are replicated and expanded into a three-layer deformable honeycomb structure; the upper left elastic unit is that the upper middle layer of the connecting plate and the lower middle layer of the connecting plate are biased to the left, and the upper and lower layers are both biased to the right; the upper right elastic unit is that the middle layer is biased to the right, and the upper and lower layers are biased to the left; the lower right elastic unit is that the middle layer is biased to the left, and the upper and lower layers are biased to the right; the lower left elastic unit is that the middle layer is biased to the right, and the upper and lower layers are biased to the left; the upper lower layer and the lower upper layer of the obliquely connected jujube-shaped single cell are bent to one side, and the upper upper layer and the lower lower layer are bent to the other side, adopting a staggered bending mode.

[0010] Furthermore, the elastic unit forming the jujube-shaped unit cell includes a connecting plate, a bending plate connected to the upper and lower ends of the connecting plate, a slit on the bending plate, and a crack-stopping hole at the root of the bending plate; the length of the elastic unit is a+2b and the width is h, wherein a is the length of the connecting plate and b is the length of the bending plates at the upper and lower ends; a slit with a length of b and a width of d is formed at h / 2 in the width direction of the bending plate, and the length of the slit is equal to the length of the bending plate, and the bending plate is cut to form two layers of bending plates, i.e., an upper bending plate and a lower bending plate; or two slits with a length of b and a width of d are formed at 1 / 4h and 3 / 4h in the width direction of the bending plate, and the bending plate is cut to form three layers of bending plates, i.e., an upper bending plate, a lower bending plate, and a middle bending plate; the diameter D of the crack-stopping hole is more than 3 times the width d of the slit; the ends of the bending plates of adjacent elastic units are welded to form a unit cell.

[0011] Furthermore, by arranging the jujube-shaped unit cells periodically, two double-layer deformable honeycomb structures based on the jujube-shaped unit cells can be obtained; the double-layer deformable honeycomb structure based on the obliquely connected jujube-shaped unit cells is as follows: the upper honeycomb is a complete plane; the upper right elastic unit of a complete jujube-shaped unit cell is the lower left elastic unit of a jujube-shaped unit cell adjacent to the upper right, and the lower right elastic unit of a complete jujube-shaped unit cell is the upper left elastic unit of a jujube-shaped unit cell adjacent to the lower right; the deformable honeycomb structure based on the directly connected jujube-shaped unit cells is as follows: there is a height difference between the upper honeycomb structure and the middle honeycomb structure, that is, an arrangement of one row high and one row low.

[0012] Furthermore, the shape of the bent plate of the jujube-shaped unit cell changes when subjected to an in-plane load at the connecting plate, thereby realizing the in-plane deformation of the double-layer deformable honeycomb structure based on the jujube-shaped unit cell; since the bent plates of the obliquely connected jujube-shaped unit cells are staggered and bent, the bending moment between the upper and lower layers is naturally balanced, while the directly connected jujube-shaped unit cells bend to the same side in the same layer, and the height difference between the layers will produce bending moment. If divided into upper and lower layers, the structure itself cannot be balanced, so the directly connected jujube-shaped unit cells are set to three layers to balance the bending moment; when subjected to out-of-plane loads, the facades of each bent plate and the connecting plate provide out-of-plane stiffness; by adjusting the length b of the bent plate of the elastic unit, the width h of the elastic unit, and the thickness t of the connecting plate and the bent plate, the deformation effect and bearing capacity of the jujube-shaped unit cell are changed, and finally a deformable honeycomb structure with good out-of-plane bearing capacity and good in-plane deformation effect is obtained.

[0013] The beneficial effects of the present invention and the prior art are:

[0014] The directly connected jujube-shaped unit cell structure of the present invention adopts a three-layer structure, and the obliquely connected jujube-shaped unit cell structure is a double-layer structure. The bending directions of the bending plates on the same layer of the two structures are different. The unit cell is composed of elastic units. Obliquely connected jujube-shaped unit cell: the two bending plates of the upper lower layer and the lower upper layer bend to one side, and the two bending plates of the upper upper layer and the lower lower layer bend to the other side, adopting a staggered bending method. Directly connected jujube-shaped unit cell: the bending method of the bending plates is that the same layer bends to the same side, that is, the two bending plates of the upper middle layer and the lower middle layer bend to one side, and the four bending plates of the upper upper layer, the lower upper layer, the upper lower layer and the lower lower layer bend to the other side. This structure solves the contradiction between in-plane deformation and out-of-plane load-bearing faced by the flexible structure design of variant aircraft.

[0015] The present invention can be combined into a variety of flexible deformable structures, which are highly designable and easy to process. The deformable honeycomb structure of the present invention can achieve large telescopic deformation in the plane and has strong anti-bending ability outside the plane, and the structural connection between the cells of the deformable honeycomb structure is natural, the processing method is simple, and the parameters are highly designable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic diagram of the obliquely connected jujube-shaped unit cell elastic unit;

[0017] Figure 2 Schematic diagram of a directly connected jujube-shaped unit cell elastic unit;

[0018] Figure 3 Schematic diagram of a deformable honeycomb structure with obliquely connected jujube-shaped cells;

[0019] Figure 4 Schematic diagram of a deformable honeycomb structure with directly connected jujube-shaped unit cells;

[0020] Among them, 1-upper curved plate, 2-lower curved plate, 3-connecting plate, 4-cutting slit, 5-stop crack hole, 6-middle curved plate, 7-obliquely connected jujube-shaped unit cell, 8-directly connected jujube-shaped unit cell. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail by enumerating examples below. It should be noted that the specific implementation described here is only used to explain the present invention and is not used to limit the present invention.

[0022] like Figure 1 As shown, the double-layer deformable honeycomb structure based on the jujube-shaped unit cell of the present invention is composed of elastic units, and the elastic unit includes a connecting plate and curved plates at the upper and lower ends of the connecting plate, that is, it is divided into three sections in an up-down order, the middle section is the connecting plate, the section above the connecting plate is the upper end, and the section below the connecting plate is the lower end; the curved plate includes curved plates at different levels; the curved plates at different levels are bent in different directions (perpendicular to the plate surface), and the ends of the curved plates at the same level on adjacent elastic units are welded together to form a jujube-shaped unit cell; according to the different bending directions of the curved plates at the same level, unit cell structures of different shapes can be formed, including directly connected jujube-shaped units and obliquely connected jujube-shaped units. The unit cell structure can be easily copied and combined to form a double-layer or three-layer deformable honeycomb structure.

[0023] The elastic unit forming the jujube-shaped unit cell includes a connecting plate 3, a curved plate connected to the upper and lower ends of the connecting plate 3, a slit 4 on the curved plate, and a crack-stopping hole 5 at the root of the curved plate; the length of the elastic unit is a+2b, and the width is h, where a is the length of the connecting plate 3, and b is the length of the curved plates at the upper and lower ends; a slit 4 with a length of b and a width of d is formed at h / 2 in the width direction of the curved plate, and the curved plate is cut to form curved plates of upper and lower layers, i.e., an upper curved plate 1 and a lower curved plate 2. Figure 1 The one on the left is the lower layer, and the one on the right is the upper layer.

[0024] Alternatively, two slits 4 with a length b and a width d are formed at 1 / 4h and 3 / 4h in the width direction of the bent plate, and the bent plate is cut to form three layers of bent plates, namely, an upper bent plate 1, a lower bent plate 2, and a middle bent plate 6. Figure 2 The left side is the lower layer, the middle side is the middle layer, and the right side is the upper layer; a crack stop hole is set at the junction of the bending plate and the connecting plate (i.e., the bottom of the bending plate), and the diameter D of the crack stop hole is more than 3 times the slit width d. The ends of the bending plates of adjacent elastic units are welded to form a unit cell. According to the different bending directions of the bending plates on the same layer of the elastic unit, an obliquely connected jujube-shaped unit cell structure and a directly connected jujube-shaped unit cell structure can be formed.

[0025] Figure 1 The schematic diagram of the elastic unit forming the obliquely connected jujube-shaped unit cell structure is shown in Figure 1. The length of the elastic unit is a+2b, the width is h, the length of the middle slit is b, and the width is d, forming two layers, the left is the lower layer, the right is the upper layer, the length of the connecting plate is a, and the length of the bending plate is b. The two bending plates of the upper lower layer and the lower upper layer are bent to one side, and the two bending plates of the upper upper layer and the lower lower layer are bent to the other side, adopting a staggered bending method, such as Figure 1 As shown in the picture on the right.

[0026] Figure 2 Schematic diagram of the elastic unit forming a directly connected jujube-shaped unit cell structure. The length of the elastic unit is a+2b and the width is h, where the length of the connecting plate is a and the length of the bending plate is b. Two slits with a length of b and a width of d are set at 1 / 4h from the left and right sides of the elastic plate to form three layers of upper, middle and lower. The left is the lower layer, the middle is the middle layer, and the right is the upper layer. The bending method of the bending plate is that the same layer bends to the same side, that is, the two bending plates of the upper middle layer and the lower middle layer bend to one side, and the four bending plates of the upper upper layer, the lower upper layer, the upper lower layer and the lower lower layer bend to the other side, as shown in Figure 2 As shown in the picture on the right.

[0027] By welding the ends of the bent plates at the corresponding positions on the same layer of adjacent elastic units together, a jujube-shaped unit cell structure can be obtained. Figure 3 As shown, it is composed of four elastic units and can be replicated and expanded into a double-layer deformable honeycomb structure. The upper left elastic unit is the upper lower layer and the lower upper layer deviated to the left, and the upper upper layer and the lower lower layer deviated to the right; the upper right elastic unit is the upper upper layer and the lower lower layer deviated to the left, and the upper lower layer and the lower upper layer deviated to the right; the lower right elastic unit is the upper lower layer and the lower upper layer deviated to the left, and the upper upper layer and the lower lower layer deviated to the right; the lower left elastic unit is the upper upper layer and the lower lower layer deviated to the left, and the upper lower layer and the lower upper layer deviated to the right. The directly connected jujube-shaped unit cells are as follows Figure 4As shown, it is also composed of four elastic units and can be replicated and expanded into a three-layer deformable honeycomb structure. The upper left elastic unit has the upper middle layer and the lower middle layer deviated to the left, and the upper and lower layers are both deviated to the right; the upper right elastic unit has the middle layer deviated to the right, and the upper and lower layers are deviated to the left; the lower right elastic unit has the middle layer deviated to the left, and the upper and lower layers are deviated to the right; the lower left elastic unit has the middle layer deviated to the right, and the upper and lower layers are deviated to the left. The four elastic units in the jujube-shaped unit cell, the upper left, upper right, lower right, and lower left, are welded together in sequence at the ends of the bending plates at the corresponding positions on the same layer to form a jujube-shaped unit cell structure.

[0028] By periodically arranging the jujube-shaped unit cells, two double-layer deformable honeycomb structures based on the jujube-shaped unit cells can be obtained. Figure 3 As shown in the figure, three obliquely connected jujube-shaped cells are selected and arranged from left to right. The upper layer is shown by solid lines, and the lower layer is shown by dotted lines. The characteristics of the oblique connection are: the upper honeycomb is a complete plane; the upper right elastic unit of a complete jujube-shaped cell is the lower left elastic unit of the upper right adjacent jujube-shaped cell, and the lower right elastic unit of a complete jujube-shaped cell is the upper left elastic unit of the lower right adjacent jujube-shaped cell. The deformable honeycomb structure based on the directly connected jujube-shaped cells is shown in the figure. Figure 4 As shown, three directly connected jujube-shaped cells are also selected and arranged from left to right, with the upper layer shown by solid lines and the lower layer shown by dotted lines. The characteristic of direct connection is that there is a height difference between the upper honeycomb structure and the middle honeycomb structure (one row high and one row low arrangement).

[0029] The in-plane load at the connecting plate causes the shape of the jujube-shaped unit cell bending plate to change, thereby realizing the in-plane deformation of the double-layer deformable honeycomb structure based on the jujube-shaped unit cell. Since the bending plates of the obliquely connected jujube-shaped unit cells are staggered and bent, the bending moment between the upper and lower layers is naturally balanced, while the directly connected jujube-shaped unit cells bend to the same side in the same layer, and the height difference between the layers will produce bending moment. If divided into upper and lower layers, the structure itself cannot be balanced. Therefore, the directly connected jujube-shaped unit cells are set to three layers to balance the bending moment. When subjected to out-of-plane loads, the facades of each bending plate and the connecting plate provide out-of-plane stiffness. By adjusting the length b of the elastic unit bending plate, the width h of the elastic unit, and the thickness t of the plate, the deformation effect and bearing capacity of the jujube-shaped unit cell are changed, and finally a deformable honeycomb structure with good out-of-plane bearing capacity and good in-plane deformation effect is obtained.

[0030] The specific data are listed below to further illustrate the specific implementation methods of the present invention.

[0031] In this embodiment, it is assumed that the length L of the deformable honeycomb is 150 mm, the width W is 100 mm, and the height H is 8 mm. It is required that the in-plane deformation of the deformable honeycomb reaches 20%.

[0032] According to the above requirements, the elastic unit dimensions are assumed to be as follows: bending plate length b = 5mm, connecting plate length a = 5mm, slit width d = 0.1mm, stop hole diameter D = 0.5mm, width h = 8mm, plate thickness t = 0.2mm. The ends of the bending plates at the corresponding positions on the same layer of adjacent elastic units are welded together to obtain a jujube-shaped unit cell structure. The directly connected jujube-shaped unit cells and the obliquely connected jujube-shaped unit cells are periodically arranged to obtain two deformable honeycomb structures based on the jujube-shaped unit cells.

[0033] The deformation direction of the deformable honeycomb structure is the direction of width W. When the above elastic unit size is selected, the equivalent length of each jujube-shaped unit cell is 30 mm, and the equivalent width is 4 mm. Therefore, the deformable honeycomb has five rows and twenty-five columns, each row contains twenty-five jujube-shaped units, and each column contains five jujube-shaped units. Processed according to the given size, the deformation of each unit cell is 2 mm, and the overall deformation of the deformable honeycomb is 50 mm. Therefore, the maximum deformation of the deformable honeycomb structure can reach 50%.

[0034] By adjusting the length b of the elastic unit bending plate and the thickness t of the plate, the deformation capacity of the jujube-shaped unit cell can be changed. By adjusting the width h of the elastic unit and the thickness t of the plate, the bearing capacity of the jujube-shaped unit cell can be changed. Thus, a deformable honeycomb structure with different deformation and bearing effects is obtained to meet various design requirements.

[0035] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A double-layer deformable honeycomb structure with a jujube-shaped unit cell, characterized in that: The jujube-shaped unit cell is composed of an elastic unit, which includes a connecting plate and curved plates at the upper and lower ends of the connecting plate. That is, it is divided into three sections in the order of up and down, the middle section is the connecting plate, the section above the connecting plate is the upper end, and the section below the connecting plate is the lower end; the bending plate includes bending plates at different levels; the bending plates at different levels are bent in different directions, but the bending plates at different levels are perpendicular to the surface of the bending plate; The ends of the bending plates on the same level of four adjacent elastic units, namely, upper left, lower left, upper right, and lower right, are welded together to form a jujube-shaped unit cell structure; according to the different bending directions of the bending plates on the same level of the elastic units, obliquely connected jujube-shaped unit cells (7) and directly connected jujube-shaped unit cells (8) can be formed; The two curved plates of the upper lower layer and the lower upper layer of the obliquely connected jujube-shaped unit cell are bent to one side, and the two curved plates of the upper upper layer and the lower lower layer are bent to the other side, adopting a staggered bending mode; one obliquely connected jujube-shaped unit cell is composed of four elastic units, and multiple obliquely connected jujube-shaped unit cells are replicated and expanded into a double-layer deformable honeycomb structure; the upper left elastic unit is that the upper lower layer and the lower upper layer are deviated to the left, and the upper upper layer and the lower lower layer are deviated to the right; the upper right elastic unit is that the upper upper layer and the lower lower layer are deviated to the left, and the upper lower layer and the lower upper layer are deviated to the right; the lower right elastic unit is that the upper lower layer and the lower upper layer are deviated to the left, and the upper upper layer and the lower lower layer are deviated to the right; the lower left elastic unit is that the upper upper layer and the lower lower layer are deviated to the left, and the upper lower layer and the lower upper layer are deviated to the right; The bending mode of the directly connected jujube-shaped single-cell bending plate is that the same layer bends to the same side, that is, the two bending plates of the upper middle layer and the lower middle layer bend to one side, and the four bending plates of the upper upper layer, the lower upper layer, the upper lower layer and the lower lower layer bend to the other side; a directly connected jujube-shaped single cell is composed of four elastic units, and multiple directly connected jujube-shaped single cells are replicated and expanded into a three-layer deformable honeycomb structure; the upper left elastic unit is that the upper middle layer of the connecting plate and the lower middle layer of the connecting plate are biased to the left, and the upper and lower layers are both biased to the right; the upper right elastic unit is that the middle layer is biased to the right, and the upper and lower layers are biased to the left; the lower right elastic unit is that the middle layer is biased to the left, and the upper and lower layers are biased to the right; the lower left elastic unit is that the middle layer is biased to the right, and the upper and lower layers are biased to the left.

2. The double-layer deformable honeycomb structure of a jujube-shaped unit cell according to claim 1, characterized in that: The elastic unit forming a jujube-shaped unit cell comprises a connecting plate (3), a curved plate connected to the upper and lower ends of the connecting plate (3), a slit (4) on the curved plate, and a crack stop hole (5) at the root of the curved plate; the elastic unit has a length of a+2b and a width of h, wherein a is the length of the connecting plate (3) and b is the length of the curved plates at the upper and lower ends; a slit (4) with a length of b and a width of d is formed at a position h / 2 in the width direction of the curved plate, the length of the slit (4) being equal to the length of the curved plate, and the curved plate is cut to form curved plates of upper and lower layers, i.e., an upper curved plate (1) and a lower curved plate (2); or two slits (4) with a length of b and a width of d are formed at 1 / 4h and 3 / 4h in the width direction of the curved plate, and the curved plate is cut to form curved plates of upper, middle and lower layers, i.e., an upper curved plate (1), a lower curved plate (2) and a middle curved plate (6); the diameter D of the crack stop hole is more than 3 times the slit width d; the ends of the curved plates of adjacent elastic units are welded to form a unit cell.

3. The double-layer deformable honeycomb structure of a jujube-shaped unit cell according to claim 1, characterized in that: The jujube-shaped unit cells are arranged periodically to obtain two double-layer deformable honeycomb structures based on the jujube-shaped unit cells; The double-layer deformable honeycomb structure based on obliquely connected jujube-shaped cells is as follows: the upper honeycomb is a complete plane; the upper right elastic unit of a complete jujube-shaped cell is the lower left elastic unit of a jujube-shaped cell adjacent to the upper right, and the lower right elastic unit of a complete jujube-shaped cell is the upper left elastic unit of a jujube-shaped cell adjacent to the lower right; The deformable honeycomb structure based on directly connected jujube-shaped unit cells is as follows: there is a height difference between the upper honeycomb structure and the middle honeycomb structure, that is, an arrangement of one row high and one row low.

4. The double-layer deformable honeycomb structure of a jujube-shaped unit cell according to claim 1, characterized in that: The in-plane load at the connecting plate causes the shape of the bent plate of the jujube-shaped unit cell to change, thereby realizing the in-plane deformation of the double-layer deformable honeycomb structure based on the jujube-shaped unit cell; since the bent plates of the obliquely connected jujube-shaped unit cells are staggered and bent, the bending moment between the upper and lower layers is naturally balanced, while the directly connected jujube-shaped unit cells bend to the same side in the same layer, and the height difference between the layers will produce bending moment. If divided into upper and lower layers, the structure itself cannot be balanced, so the directly connected jujube-shaped unit cells are set to three layers to balance the bending moment; when subjected to out-of-plane loads, the facades of each bent plate and the connecting plate provide out-of-plane stiffness; by adjusting the length b of the elastic unit bent plate, the width h of the elastic unit, and the thickness t of the connecting plate and the bent plate, the deformation effect and bearing capacity of the jujube-shaped unit cell are changed, and finally a deformable honeycomb structure with good out-of-plane bearing capacity and good in-plane deformation effect is obtained.

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