A micro-vibration suppression plate with a three-dimensional suture network structure imitating a turtle shell back plate

Abstract

The application discloses a micro-vibration suppression plate material with a three-dimensional interlaced network structure of a tortoise shell back plate, comprising: a plurality of cells spliced with each other, comprising: a hard plate; a first soft joint fixed to the side surface of each edge of the hard plate; the first soft joint forms a three-dimensional interlaced network joint structure; the three-dimensional interlaced network joint structure of the first soft joint in two adjacent cells is embedded with each other; and the shape of the hard plate comprises at least one of a hexagon and a pentagon. When the hard plate is subjected to an impact load and displacement, if the displacement of the hard plate is small, the two first soft joints in the two adjacent cells are extruded with each other, and the first soft joint can resist the impact load caused by the displacement; if the displacement of the hard plate is large, the impact load caused by the displacement is resisted by the two adjacent hard plates, so that the high rigidity and high toughness of the whole plate material are realized, the damping characteristics and energy dissipation capacity of the plate material are enhanced, and the bionic energy-absorbing and vibration-reducing plate material with high damping and high rigidity is obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of micro-vibration suppression technology, and particularly to a micro-vibration suppression plate with a three-dimensional suture network structure simulating a turtle shell back plate. BACKGROUND

[0002] With the development of society, high satellite, super-precision instruments, super-precision machining and testing and other high-techs have increasing demands for precision. Among them, micro-vibration is one of the key factors affecting the precision of task completion, and therefore the vibration amplitude of the system needs to be strictly limited. High-performance damping materials, as corresponding components directly acting on the vibration source or noise source, can effectively reduce mechanical vibration and suppress noise, and have important application background in modern precision instruments, marine and space technology equipment and other fields.

[0003] In the prior art, soft materials are mainly used to reduce mechanical vibration and suppress noise. The soft materials have low rigidity and damping characteristics, so as to achieve the effect of micro-vibration suppression. However, due to the low rigidity and limited bearing capacity of the soft materials, the application is limited. It can be seen that the micro-vibration suppression material is difficult to balance the micro-vibration suppression and the bearing capacity.

[0004] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a micro-vibration suppression plate with a three-dimensional suture network structure simulating a turtle shell back plate, aiming at solving the problem that the micro-vibration suppression material in the prior art is difficult to balance the micro-vibration suppression and the bearing capacity.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows:

[0007] A micro-vibration suppression plate with a three-dimensional suture network structure simulating a turtle shell back plate, comprising: a plurality of cells spliced with each other, wherein the cell comprises:

[0008] a hard plate;

[0009] a first soft seam fixedly arranged on the side surface where each edge of the hard plate is located;

[0010] wherein the first soft seam forms a three-dimensional interlaced network-like suture structure;

[0011] the three-dimensional interlaced network-like suture structure of the first soft seam in the adjacent two cells is embedded in each other;

[0012] The shape of the hard plate includes at least one of a hexagon and a pentagon.

[0013] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the three-dimensional interlaced network structure comprises:

[0014] a plurality of grooves and a plurality of protrusions;

[0015] The plurality of grooves are arranged in an array, and the plurality of protrusions are arranged in an array.

[0016] The groove is located between the four protrusions;

[0017] The cross-sectional size of the groove gradually increases from the bottom of the groove to the opening of the groove;

[0018] The cross-sectional size of the protrusion gradually decreases from the bottom of the protrusion to the top of the protrusion;

[0019] The cross section of the protrusion and the cross section of the groove are octagonal.

[0020] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the volume of the first soft seam does not exceed 5% of the volume of the hard plate, and the ratio of the modulus of the hard plate to the modulus of the first soft seam is 1000-2000.

[0021] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the hard plate is made of an ultra-high molecular weight polyethylene plate or a damping alloy;

[0022] The first soft seam is made of a hysteretic damping material, and the hysteretic damping material comprises rubber.

[0023] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the hexagon is a regular hexagon, and the pentagon is a regular pentagon.

[0024] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the shape of the hard plate further comprises a quadrilateral, and the cell of the quadrilateral is located at the edge of the micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate.

[0025] The micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate, wherein the micro-vibration suppression plate of the three-dimensional interlaced network structure of the tortoise shell back plate has multiple layers of cells; the cell further comprises:

[0026] A second soft seam is fixedly arranged on the surface and the back surface of the hard plate;

[0027] The second soft seam forms a three-dimensional interlaced network structure;

[0028] The three-dimensional interlaced network-like suture structure of the second soft suture in the two adjacent layers of cells is embedded into each other.

[0029] The micro-vibration suppression plate material of the three-dimensional interlaced suture network structure of the tortoise shell back plate, wherein the volume of the second soft suture is not more than 5% of the volume of the hard plate, the ratio of the modulus of the hard plate to the modulus of the second soft suture is 1000-2000; the second soft suture is made of a hysteretic damping material.

[0030] A construction method of a model of the micro-vibration suppression plate material of the three-dimensional interlaced suture network structure of the tortoise shell back plate, wherein the method comprises the steps of:

[0031] Establishing a suture line interface in space, and at the boundary angle of the suture line interface, a suture line is established perpendicular to the suture line interface;

[0032] The established suture line interface is extruded along the established suture line in a curve extrusion manner, and then a three-dimensional interlaced network-like suture structure is formed;

[0033] The three-dimensional interlaced network-like suture structure is arranged in a ring array of 3 groups, and combined into a herringbone suture line structure;

[0034] A plate structure with a thickness equal to the height of the three-dimensional interlaced network-like suture structure is established, the plate structure is arranged concentrically with the herringbone suture line structure, and the distal end of the herringbone suture line structure is located at the three vertices of the plate structure;

[0035] The plate structure is subjected to Boolean operation by using the herringbone suture line structure, and the part of the plate structure coinciding with the herringbone suture line structure is removed, and then a basic configuration unit is obtained after the operation is completed;

[0036] A plurality of basic configuration units are combined to obtain a model of the micro-vibration suppression plate material of the three-dimensional interlaced suture network structure of the tortoise shell back plate.

[0037] The construction method of the model of the micro-vibration suppression plate material of the three-dimensional interlaced suture network structure of the tortoise shell back plate, wherein the included angle between the two adjacent three-dimensional interlaced network-like suture structures in the herringbone suture line structure is 120° or 108°.

[0038] Beneficial effects: due to the mutual embedding of the three-dimensional interlaced network-like suture structure of the first soft seam in the adjacent two cells, when the hard plate is displaced under impact load, if the displacement of the hard plate is small, the two first soft seams in the adjacent two cells are extruded or enter the mutual separation stage, and the first soft seam can resist the impact load caused by displacement; if the displacement of the hard plate is large, the impact load caused by displacement is resisted by the adjacent two hard plates. Therefore, not only the high stiffness and high toughness of the whole plate can be realized, but also the damping characteristics and energy dissipation capacity of the plate can be enhanced, so that a bionic energy-absorbing and vibration-reducing plate with high damping and high stiffness is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic diagram of a micro-vibration suppression plate with a three-dimensional suture network structure of a bionic turtle shell back plate in an embodiment of the present application.

[0040] Figure 2 is a structural schematic diagram of a three-dimensional interlaced network-like suture structure in an embodiment of the present application.

[0041] Figure 3 is a structural schematic diagram of a basic configuration unit in an embodiment of the present application.

[0042] Figure 4 is a structural schematic diagram of a herringbone suture line structure in an embodiment of the present application.

[0043] Figure 5 is a structural schematic diagram of a model of a micro-vibration suppression plate with a three-dimensional suture network structure of a bionic turtle shell back plate in an embodiment of the present application.

[0044] BRIEF DESCRIPTION OF DRAWINGS

[0045] 10, cell; 11, hard plate; 12, first soft seam; 13, three-dimensional interlaced network-like suture structure; 131, groove; 132, protrusion; 20, model of a micro-vibration suppression plate with a three-dimensional suture network structure of a bionic turtle shell back plate; 21, suture line interface; 22, suture line; 23, herringbone suture line structure; 24, plate structure; 25, basic configuration unit. DETAILED DESCRIPTION

[0046] To make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0047] Please refer to Figures 1-2 , some embodiments of a micro-vibration suppression plate with a three-dimensional suture network structure of a bionic turtle shell back plate are provided.

[0048] Turtles are one of the oldest non-extinct vertebrates, believed to have existed in the early Mesozoic Triassic period about 200 million years ago. The carapace mainly serves as an osseous shield to protect internal organs from external trauma, and thus needs to be rigid; however, aquatic turtles do not have a diaphragm and breathe by contraction of the abdominal transverse and oblique muscles, as well as the contraction of the locomotor muscles, all of which are fixed to the shell. Therefore, a certain degree of flexibility of the carapace would improve the efficiency of respiration and locomotion. The soft sutures existing between the carapace bone elements have a unique and complex 3D sutural network structure, which makes the carapace deformable under small loads, but quite rigid under large loads. Studies have shown that the 3D sutural network structure plays a corresponding mechanical function in the carapace. When the shell is subjected to high-intensity, high-rate impact loads due to falling or attacks by predators, the carapace exhibits high rigidity to resist high-rate loads and large deformations; when the shell is subjected to low-intensity periodic loads due to walking (many limb muscles are fixed to the shell), breathing, swimming, and feeding (muscle forces are generated during the process), the shell exhibits damping and ductility properties to allow small deformations and energy dissipation under low-intensity force loads. Although the hard bone provides a rigid shell and large load-bearing capacity, the sutural structure confers a certain degree of flexibility and energy absorption capacity to the turtle shell under small and cyclic loads.

[0049] As shown in Figures 1-2 The micro-vibration suppression plate material of the turtle carapace-imitating back plate three-dimensional solid sutural network structure of the present application comprises: a plurality of cells 10 spliced with each other, wherein the cell 10 comprises:

[0050] a hard plate 11;

[0051] a first soft suture 12 fixedly arranged on a side surface where each edge of the hard plate 11 is located;

[0052] wherein the first soft suture 12 forms a three-dimensional solid interlaced network-like sutural structure 13; the three-dimensional solid interlaced network-like sutural structures 13 of the first soft sutures 12 in two adjacent cells 10 are embedded with each other; and the shape of the hard plate 11 comprises at least one of a hexagon and a pentagon.

[0053] Specifically, the cell 10 refers to an assembly unit of the plate material, the hard plate 11 refers to a plate member made of a hard material, the soft suture refers to a suture member made of a soft material, and the rigidity of the hard plate 11 is greater than that of the soft suture (for example, the first soft suture 12). When a plurality of cells 10 are spliced together, the soft suture is located at the gap between the two adjacent hard plates 11. The soft suture forms a three-dimensional solid interlaced network-like sutural structure 13, and when two cells 10 are spliced, the three-dimensional solid interlaced network-like sutural structures 13 of the two first soft sutures 12 are embedded with each other, achieving the splicing of the two cells 10.

[0054] This application employs a rigid plate 11, which mimics the shell of a turtle, to bear the load. A first soft suture 12, mimicking the sutures of a turtle's shell, is used to suppress micro-vibrations and absorb or dissipate energy. A three-dimensional interlaced network suture structure 13, mimicking the 3D suture network structure of the turtle shell sutures, serves as a connector. Because the three-dimensional interlaced network suture structures 13 of the first soft sutures 12 in adjacent cells 10 are interlocked, when the rigid plate 11 is displaced by an impact load, if the displacement is small, the two first soft sutures 12 in adjacent cells 10 are compressed together or enter a separation phase, allowing the first soft sutures 12 to withstand the impact load. If the displacement is large, the two first soft sutures 12 in adjacent cells 10 are compressed to their minimum thickness (still in a separation phase), thus allowing the adjacent rigid plates 11 to withstand the impact load. Therefore, not only can the overall stiffness and toughness of the plate be achieved, but the damping characteristics and energy dissipation capacity of the plate can also be enhanced, thus obtaining a biomimetic energy-absorbing and vibration-damping plate with both high damping and high stiffness. Furthermore, under impact loads, the two interlocking three-dimensional network-like stitched structures 13 are not easily completely separated, making it difficult for the individual cells 10 of the plate to separate, and the overall structure is not destroyed. The first soft seam 12 extends to the sides of the rigid plate 11, meaning that the first soft seam 12 extends to the apex of the rigid plate 11 and the edges of the two surfaces of the rigid plate 11.

[0055] The rigid board 11 has a shape including at least one of hexagonal and pentagonal shapes, so the board can be formed into a planar or curved shape. A hexagonal rigid board 11 can form hexagonal cells 10, a pentagonal rigid board 11 can form pentagonal cells, multiple hexagonal cells 10 can be spliced ​​together to form a planar board, multiple pentagonal cells can be spliced ​​together to form a curved board, and multiple pentagonal cells and multiple hexagonal cells 10 can also be spliced ​​together to form a curved board. For example... Figure 4 As shown, when pentagonal or hexagonal cells 10 are spliced ​​together, a herringbone (or Y-shaped) suture structure can be formed at the vertices. When multiple cells 10 are spliced ​​together, the soft seam does not form a straight line. Regardless of which direction the impact load (or shear force) is transmitted in the horizontal plane, the herringbone suture structure 23 will distribute the impact load to more cells 10 over a larger area for energy absorption and dissipation. This is not only beneficial for the rapid absorption and dissipation of energy, but also for preventing cell 10 from being overloaded and damaged. At the same time, it increases the bending deformation resistance of the plate, so that the plate achieves a better balance between damping effect and load-bearing function.

[0056] In summary, the soft and hard materials are connected by the interlocking cross-section structure of the suture, so that the material presents high stiffness and high damping characteristics under large impact load and small cyclic load respectively. The structural strength of the plate is ensured while the micro-vibration energy is absorbed and dissipated. The herringbone suture structure 23 further increases the strength and toughness of the material and increases the strain energy required for the soft and hard material contact surface to crack.

[0057] In a preferred implementation of an embodiment of the present application, as shown in Figures 1-2 the three-dimensional interlaced network-like suture structure 13 includes:

[0058] a plurality of grooves 131 and a plurality of protrusions 132;

[0059] wherein the plurality of grooves 131 are arrayed, and the plurality of protrusions 132 are arrayed; the groove 131 is located between the four protrusions 132; from the bottom of the groove 131 to the opening of the groove 131, the cross-sectional size of the groove 131 gradually increases; from the bottom of the protrusion 132 to the top of the protrusion 132, the cross-sectional size of the protrusion 132 gradually decreases; the cross-section of the protrusion 132 and the cross-section of the groove 131 are octagonal. The distribution of the grooves 131 and the protrusions 132 extends to the edges of the two surfaces of the hard plate 11.

[0060] Specifically, the surface of the soft suture has a plurality of grooves 131 and a plurality of protrusions 132, thereby forming a three-dimensional interlaced network-like suture structure 13. The shape of the groove 131 is the same as that of the protrusion 132, which can not only make the broadband micro-vibration suppression performance of the three-dimensional interlaced network-like suture structure 13 achieve the optimal effect, but also make the plate present consistent performance on the left and right sides of the suture interface, facilitate cutting into different shapes, and broaden the application scenarios. When the two adjacent soft sutures are close to each other, the two three-dimensional interlaced network-like suture structures 13 can be embedded in each other, that is, the protrusion 132 of the three-dimensional interlaced network-like suture structure 13 is embedded in the groove 131 of another three-dimensional interlaced network-like suture structure 13, and the groove 131 of the three-dimensional interlaced network-like suture structure 13 is embedded in the protrusion 132 of another three-dimensional interlaced network-like suture structure 13. Since the two three-dimensional interlaced network-like suture structures 13 of the adjacent two cells 10 are embedded in each other, the reliability of the splicing between the adjacent two cells 10 is higher, and relative movement is not easy to occur.

[0061] The two three-dimensional interlaced network-like stitching structures 13 of the two adjacent cells 10 are highly fitted, so that the panel achieves the interlocking effect after slight deformation. Once subjected to vertical stress or shear stress, the panel will interlock after slight deformation to increase the structural strength. When subjected to wideband slight vibration amplitude, the panel has a vibration suppression effect; when subjected to a large impact load, the panel has a stiffness enhancement effect. Specifically, when subjected to wideband slight amplitude vibration cyclic load, the panel will diffuse the vibration force through the herringbone stitching network to multiple cells 10 instead of concentrating on a certain cell 10, forming a three-dimensional network linkage, and acting together to achieve full energy dissipation and improve the efficiency of attenuating vibration. In addition, when subjected to a large load, the two hard plates 11 are interlocked by the three-dimensional interlaced network-like stitching structure 13, which can improve the structural strength of the panel, reduce the probability of damage to the panel, and ensure the stability of the overall biomimetic micro-vibration suppression panel.

[0062] The three-dimensional interlaced network-like stitching structure 13 further comprises a plurality of trapezoidal grooves and a plurality of trapezoidal protrusions, which are alternately arranged. The trapezoidal groove refers to a groove with a trapezoidal cross section, and the trapezoidal protrusion refers to a protrusion with a trapezoidal cross section. The trapezoidal groove and the trapezoidal protrusion are located at both ends of the first soft seam 12, close to the vertex of the hard plate 11. The trapezoidal groove and the trapezoidal protrusion facilitate the splicing of the cells 10. At the vertex of the hard plate 11, the trapezoidal grooves and the trapezoidal protrusions of the three-dimensional interlaced network-like stitching structures 13 of the three adjacent cells 10 are embedded in each other, for example, the end of the trapezoidal protrusion of the first cell 10 is embedded in the middle of the trapezoidal groove of the second cell 10, and the middle of the trapezoidal protrusion of the first cell 10 is embedded in the end of the trapezoidal groove of the third cell 10. The end of the trapezoidal protrusion of the second cell 10 is embedded in the middle of the trapezoidal groove of the third cell 10, and the middle of the trapezoidal protrusion of the second cell 10 is embedded in the middle of the trapezoidal groove of the first cell 10. The end of the trapezoidal protrusion of the third cell 10 is embedded in the middle of the trapezoidal groove of the first cell 10, and the middle of the trapezoidal protrusion of the third cell 10 is embedded in the end of the trapezoidal groove of the second cell 10. The end is located at one end of the vertex of the hard plate 11, and the middle is located at one end of the edge of the hard plate 11.

[0063] In a preferred implementation manner of the embodiment of the present application, as shown in Figures 1-2 The volume of the first soft seam 12 is not more than 5% of the volume of the hard plate 11.

[0064] Specifically, the first soft joint 12 has a small volume, which does not exceed 5% of the volume of the hard plate 11, and can balance the structural stability and micro-vibration suppression performance of the plate. In the thickness direction of the hard plate 11, the thickness of the hard plate 11 is equal to the height of the first soft joint 12. Increasing the thickness of the hard plate 11 can improve the overall structural stability and impact resistance.

[0065] In a preferred implementation form of the embodiment of the present application, the ratio of the modulus of the hard plate 11 to the modulus of the first soft joint 12 is 1000-2000.

[0066] Specifically, the modulus of the hard plate 11 is higher, and the modulus of the first soft joint 12 is lower, and the ratio of the two is 1000-2000. The combination of the two soft and hard materials through the imitation tortoise shell back joint network structure makes the plate have both high stiffness and high damping characteristics. Therefore, it can be used in some special application scenarios, such as the micro-vibration suppression field, which has both flexible and rigid regions, and greatly helps to improve the micro-vibration suppression performance.

[0067] In a preferred implementation form of the embodiment of the present application, the hard plate 11 is made of an ultra-high molecular weight polyethylene plate or a damping alloy.

[0068] Specifically, the hard plate 11 is made of a hard material, and the hard material is an ultra-high molecular weight polyethylene plate or a high-damping alloy or other hard material with certain structural strength.

[0069] In a preferred implementation form of the embodiment of the present application, the first soft joint 12 is made of a hysteresis damping material.

[0070] Specifically, the first soft joint 12 is made of a soft material, and the soft material has hysteresis damping characteristics and can deform, attenuate and dissipate energy when subjected to vibration excitation.

[0071] In a preferred implementation form of the embodiment of the present application, the hysteresis damping material includes rubber. Specifically, the hysteresis damping material is rubber, specifically natural rubber or silicone rubber.

[0072] In a preferred implementation form of the embodiment of the present application, as shown in Figure 1 the hexagon is a regular hexagon, and the pentagon is a regular pentagon.

[0073] Specifically, the hexagon is a regular hexagon, and each internal angle of the regular hexagon is 120°, so that the plate as a whole forms a hexagonal honeycomb structure. The pentagon is a regular pentagon, and each internal angle of the regular pentagon is 108°. The regular pentagon and the regular hexagon can form a curved plate similar to a football.

[0074] In a preferred implementation of the embodiment of the present application, as shown in Figure 1 The shape of the hard plate 11 also includes a quadrilateral, and the cells of the quadrilateral are located at the edges of the micro-vibration suppression plate of the three-dimensional stitched network structure of the simulated turtle shell back plate.

[0075] Specifically, the quadrilateral cells can also be spliced at the edges of the plate, so that the edges of the structure of the plate are more flat.

[0076] In a preferred implementation of the embodiment of the present application, the micro-vibration suppression plate of the three-dimensional stitched network structure of the simulated turtle shell back plate has multiple cells 10; the cells 10 also include:

[0077] The second soft seam is fixedly arranged on the surface and back of the hard plate 11.

[0078] The second soft seam forms a three-dimensional interlaced network-shaped stitched structure 13, and the three-dimensional interlaced network-shaped stitched structures 13 of the second soft seams in adjacent two layers of the cells 10 are embedded into each other.

[0079] Specifically, the first soft seam 12 is located at the sides of the four edges of the hard plate 11, the cells 10 are spliced to form a plate in the horizontal plane, and the cells 10 can also be stacked in the vertical direction, so that the second soft seam needs to be arranged on the surface and back of the hard plate 11, and the three-dimensional interlaced network-shaped stitched structures 13 of the second soft seams in adjacent two layers of the cells 10 are embedded into each other. The hard plates 11 in adjacent two layers of the cells 10 are stacked in a staggered manner, for example, the vertex of the hard plate 11 corresponds to the center position of the hard plate 11 in the next layer.

[0080] In a preferred implementation of the embodiment of the present application, the volume of the second soft seam is not more than 5% of the volume of the hard plate 11.

[0081] Specifically, the volume of the second soft seam is small, and is not more than 5% of the volume of the hard plate 11, so that the structural stability and the micro-vibration suppression performance of the plate as a whole can be considered.

[0082] In a preferred implementation of the embodiment of the present application, the ratio of the modulus of the hard plate 11 to the modulus of the second soft seam is 1000-2000.

[0083] Specifically, the modulus of the hard plate 11 is high, and the modulus of the second soft seam is low, and the ratio of the two is 1000-2000. The combination of the two soft and hard materials through the simulated turtle shell back plate stitched network structure makes the plate have both high stiffness and high damping characteristics.

[0084] In a preferred implementation of the embodiment of the present application, the second soft seam is made of a hysteresis damping material.

[0085] Specifically, the second soft seam is made of a soft material, and the soft material has a hysteretic damping characteristic, can be deformed, attenuate and dissipate energy when subjected to vibration excitation. The hysteretic damping material includes rubber. Specifically, the hysteretic damping material is rubber, specifically natural rubber or silicone rubber.

[0086] Based on the micro-vibration suppression plate material with the three-dimensional interlocking network structure of the tortoise shell back plate according to any one of the above embodiments, the application further provides a preferred embodiment of a construction method of a model of the micro-vibration suppression plate material with the three-dimensional interlocking network structure of the tortoise shell back plate.

[0087] The construction method of the model of the micro-vibration suppression plate material with the three-dimensional interlocking network structure of the tortoise shell back plate according to the embodiment of the application comprises the following steps:

[0088] Step S100, a suture line interface is established in space, and at the boundary angle of the suture line interface, a suture line is established perpendicular to the suture line interface.

[0089] Step S200, the established suture line interface is extruded along the established suture line in a curve extrusion manner, and then a three-dimensional interlocking network suture structure is formed.

[0090] Step S300, the three-dimensional interlocking network suture structure is arranged in a ring array of 3 groups, and combined into a herringbone suture line structure.

[0091] Step S400, a plate structure with the same height as the three-dimensional interlocking network suture structure is established, the plate structure is arranged concentrically with the herringbone suture line structure, and the distal end of the herringbone suture line structure is located at the three vertices of the plate structure.

[0092] Step S500, the herringbone suture line structure is used to perform a Boolean operation on the plate structure, and the part of the plate structure coinciding with the herringbone suture line structure is removed, and then a basic configuration unit is obtained after the operation.

[0093] Step S600, a plurality of basic configuration units are combined to obtain a model of the micro-vibration suppression plate material with the three-dimensional interlocking network structure of the tortoise shell back plate.

[0094] Specifically, in order to facilitate the preparation of the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate, or to carry out simulation experiments, the application provides a model construction method of the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate. The model construction method of the application is not to construct the cell first, and then to splice and combine the cells to form the plate. Since the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate is formed by splicing a plurality of cells 10, the cells 10 in the plate are periodically arranged, so the three-dimensional interlaced network suture structure 13 with a relatively complex shape structure can be constructed first, and then the herringbone suture line structure 23 can be combined, and then the plate structure 24 can be obtained based on the herringbone suture line structure 23, and finally the basic configuration unit 25 can be obtained by Boolean operation, so that the difficulty of model construction can be reduced.

[0095] As shown in Figure 3 , a suture line interface 21 is first established in space, which is a trapezoidal wave interface, and then a suture line 22 is established, which is a trapezoidal wave line. When the trapezoidal wave interface is extruded along the trapezoidal wave line, a groove 131 array and a protrusion 132 array can be formed, that is, a three-dimensional interlaced network suture structure 13.

[0096] As shown in Figure 4 , the included angle between the adjacent two three-dimensional interlaced network suture structures 13 in the herringbone suture line structure 23 is 120° or 108°. When the three-dimensional interlaced network suture structure 13 is arranged in a circular array, a line perpendicular to the suture line interface 21 can be taken as the central axis to arrange in a circular array, so that the herringbone suture line structure 23 with the included angle of 120° between the adjacent two three-dimensional interlaced network suture structures 13 can be obtained, and finally the model 20 of the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate formed by splicing the hexagonal cells can be obtained. A line not perpendicular to the suture line interface 21 can also be taken as the central axis to arrange in a circular array, so that the herringbone suture line structure 23 with two included angles of 120° and one included angle of 108° can be obtained, and finally the model 20 of the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate formed by splicing the hexagonal cells and the pentagonal cells can be obtained. A line not perpendicular to the suture line interface 21 can also be taken as the central axis to arrange in a circular array, so that the herringbone suture line structure 23 with the included angle of 108° between the adjacent two three-dimensional interlaced network suture structures 13 can be obtained, and finally the model 20 of the micro-vibration suppression plate material with the three-dimensional suture network structure of the turtle shell back plate formed by splicing the pentagonal cells can be obtained.

[0097] As shown in Figure 3As shown, the height of the three-dimensional interlaced network-like suture structure 13 is used to establish a plate structure 24, the thickness of the plate structure 24 is the same as the height of the three-dimensional interlaced network-like suture structure 13, then the plate structure 24 is subjected to Boolean operation, the tips of the herringbone suture structure 23 are placed at the vertices of the plate structure 24, and the overlapping part of the herringbone suture structure 23 and the plate structure 24 is subtracted (that is, a gap in the plate structure 24 is formed as the herringbone suture structure 23), and a basic configuration unit 25 is obtained. In the basic configuration unit 25, the plate structure 24 can be a hexagon, the gap of the herringbone suture structure 23 is located in the center of the hexagonal plate structure, and the tips of the herringbone suture structure 23 extend to three vertices of the hexagonal plate structure, respectively. The gap of the herringbone suture structure 23 divides the hexagonal plate structure into three separate diamond plate structures.

[0098] As shown in FIG. 2, the herringbone suture structure 23 is formed by a plurality of three-dimensional interlaced network-like suture structures 13. Figure 5 As shown, a plurality of basic configuration units 25 are combined to obtain a model 20 of the micro-vibration suppression plate material of the three-dimensional suture network structure of the tortoise shell back plate. Of course, when the included angle between two adjacent three-dimensional interlaced network-like suture structures 13 is 108°, the plurality of basic configuration units 25 will have overlapping parts, and a combined manner is adopted to form a complete hard plate 11.

[0099] In the construction of the model, the plate structure is used as the hard plate, and the ultra-high molecular weight polyethylene material is selected, the density is 0.93 g / cm 3 -0.95 g / cm 3 , the Young's modulus is set to 500-1500 MPa, and the Poisson's ratio is set to 0.42-0.45. The area near the herringbone suture structure is used as the first soft seam, and the butyl rubber material is selected, the density is 0.91 g / cm 3 -0.95 g / cm 3 ; the Young's modulus is set to 0.5 MPa-1.5 MPa; the Poisson's ratio is set to 0.45 to 0.49. The friction coefficient of the plate structure and the herringbone suture structure is 0.8. The length of the three-dimensional interlaced network-like suture structure is 34.56 mm, the width is 9 mm, the thickness is 0.67 mm, the width of the square at the peak of the trapezoidal wave and the width of the square at the trough are both 0.44 mm, in the extension direction of the trapezoidal wave, the distance between the adjacent peak and trough is 1 mm, and the height difference between the peak and the trough is 2 mm.

[0100] It should be understood that the application of the present application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A micro-vibration suppression board with a three-dimensional stitched network structure mimicking a tortoise shell carapace, comprising: A plurality of interconnected cells, characterized in that the cells comprise: Hardboard; The first soft seam is fixedly set on the side of each side of the rigid plate; The first soft suture forms a three-dimensional, interwoven network-like suture structure. The three-dimensional, interwoven network-like suture structure of the first soft suture in two adjacent cells is interlocked with each other; The rigid plate has a shape including at least one of hexagon and pentagon; when the cells are spliced ​​together, a herringbone suture structure is formed at the vertices; The three-dimensional interlaced network-like stitching structure includes: Several grooves and several protrusions; Among them, several grooves are arranged in an array, and several protrusions are arranged in an array; The groove is located between the four protrusions; From the bottom of the groove to the opening of the groove, the cross-sectional dimensions of the groove gradually increase; From the bottom to the top of the protrusion, the cross-sectional dimensions of the protrusion gradually decrease; The cross-section of the protrusion and the cross-section of the groove are octagonal; The volume of the first soft joint does not exceed 5% of the volume of the rigid board, and the ratio of the modulus of the rigid board to the modulus of the first soft joint is 1000-2000.

2. The micro-vibration suppression board with a three-dimensional stitched network structure resembling a tortoise shell as described in claim 1, characterized in that, The rigid plate is made of ultra-high molecular weight polyethylene or damping alloy. The first soft joint is made of a hysteretic damping material, which includes rubber.

3. The micro-vibration suppression board with a three-dimensional stitched network structure resembling a tortoise shell as described in claim 1, characterized in that, The hexagon is a regular hexagon, and the pentagon is a regular pentagon.

4. The micro-vibration suppression board with a three-dimensional stitched network structure resembling a tortoise shell as described in claim 1, characterized in that, The rigid plate also includes a quadrilateral shape, with the quadrilateral cells located at the edge of the micro-vibration suppression plate of the three-dimensional stitched network structure of the tortoise shell back plate.

5. The micro-vibration suppression board with a three-dimensional stitched network structure resembling a tortoise shell as described in any one of claims 1-4, characterized in that, The micro-vibration suppression plate with the three-dimensional stitched network structure of the simulated tortoise shell carapace has multiple layers of cells; the cells also include: The second soft seam is fixedly installed on the surface and back of the rigid plate; The second soft suture forms a three-dimensional, interwoven network-like suture structure. The three-dimensional, interwoven network-like suture structure of the second soft suture in the adjacent two layers of cells is interlocked.

6. The micro-vibration suppression plate with a three-dimensional stitched network structure resembling a tortoise shell as described in claim 5, characterized in that, The volume of the second soft joint does not exceed 5% of the volume of the rigid plate, and the ratio of the modulus of the rigid plate to the modulus of the second soft joint is 1000-2000; the second soft joint is made of a hysteretic damping material.

7. A method for constructing a model of a micro-vibration suppression plate with a three-dimensional stitched network structure resembling a tortoise shell as described in any one of claims 1-6, characterized in that, Including the following steps: Establish a suture interface in space, and at the boundary corner of the suture interface, establish a suture line perpendicular to the suture interface; By using the extrusion method along the curve, the established suture interface is extruded along the established suture line, thus forming a three-dimensional interwoven network-like suture structure. The three-dimensional interlaced network-like suture structure is arranged in a circular array of 3 groups to form a herringbone suture structure. A plate structure with the same thickness and height as the three-dimensional interlaced network stitching structure is established, such that the plate structure and the herringbone stitching structure are concentrically arranged, and the ends of the herringbone stitching structure are located at the three vertices of the plate structure. Using the herringbone stitching structure, Boolean operations are performed on the plate structure to subtract the portion of the plate structure that overlaps with the herringbone stitching structure. After the operation, the basic configuration unit is obtained. By combining multiple basic structural units, a model of a micro-vibration suppression plate with a three-dimensional stitching network structure resembling a tortoise shell is obtained.

8. The method for constructing a model of a micro-vibration suppression plate with a three-dimensional stitched network structure resembling a tortoise shell as described in claim 7, characterized in that, The angle between two adjacent three-dimensional interlaced network-like suture structures in the herringbone suture structure is 120° or 108°.

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