A manufacturing method of a kip origami structure minimum unit

Abstract

The application discloses a manufacturing method of a KIP origami structure minimum unit, and belongs to the technical field of material manufacturing. The method comprises the following steps: obtaining the size of a target material to be manufactured; establishing a first relationship model between the thickness t of the target material and the mold size of a minimum unit mold, calculating the required number a of the minimum unit mold, and manufacturing the minimum unit mold according to the number a; establishing a second relationship model between the density p of the target material and the minimum unit thickness b, and calculating the minimum unit thickness b and the prepreg winding number n; according to the long side size L1, the prepreg width W1 is calculated, and according to the long side size L1 and the prepreg winding number n, the prepreg length L3 is calculated; the prepreg is cut according to the prepreg size to obtain a rectangular prepreg; the rectangular prepregs are wound to the minimum unit mold one by one according to the prepreg winding number n; and the rectangular prepregs of the semi-finished minimum unit are cut to make the rectangular prepregs flush with the minimum unit mold, so that the minimum unit is obtained.

Description

Technical Field

[0001] This invention belongs to the field of materials manufacturing technology, specifically relating to a method for manufacturing the smallest unit of a KIP origami structure. Background Technology

[0002] KIP (Kirigami-inspired Pyramid) origami-structured composite materials are widely used in scientific research. Folded metamaterials have seen rapid development in recent years. Their structural form originates from a Chinese folk origami art. Modern researchers have discovered that integrating folded structural materials with modern science can generate many emerging interdisciplinary fields, such as medical folded capsules, foldable robots, aerospace foldable antennas, solar panels, and metamaterial structural architecture. KIP origami-structured composite materials feature thin walls and crease structures, allowing the material to undergo plastic deformation along designed paths, resulting in designable lightweighting and efficient energy absorption.

[0003] The materials for KIP origami structures require first creating standard minimum units, then assembling these units to form a structure of the required size. Finally, the assembled structure is trimmed to obtain the desired final shape. The minimum unit is the basic building block of a KIP origami structure. It consists of four identical trapezoidal faces, each with a fixed angle of symmetry. In current technology, the industrial manufacturing of minimum units for KIP origami structures typically employs methods for producing conventional materials. This often results in KIP origami minimum units that do not achieve the calculated accuracy, exhibiting large errors and structural instability. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing the smallest unit of a KIP origami structure. This method can solve the technical problem that in the process of industrial manufacturing of the smallest unit of a KIP origami structure, conventional methods for manufacturing the smallest unit of a KIP origami structure are used, resulting in the smallest unit of the KIP origami structure often failing to achieve the required calculation accuracy, having large errors, and exhibiting structural instability.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] This invention provides a method for manufacturing the smallest unit of a KIP origami structure, comprising:

[0007] S101: Obtain the dimensions of the target material to be manufactured, wherein the target material may be composed of multiple smallest units, and the dimensions of the target material include the target material length L, the target material width W, the target material thickness t, and the target material density ρ;

[0008] S102: Establish a first relationship model between the target material thickness t and the mold size of the minimum unit mold. Calculate the mold size of the minimum unit mold and the number a of minimum unit molds required to assemble the target material using the first relationship model. The mold size of the minimum unit mold includes the long side dimension L1 and the short side dimension L2.

[0009] S103: Based on the mold size of the smallest unit mold, manufacture a smallest unit molds;

[0010] S104: Establish a second relationship model between the target material density ρ and the minimum unit thickness b, and calculate the minimum unit thickness b and the number of prepreg winding turns n through the second relationship model;

[0011] S105: Calculate the prepreg width W1 based on the long side dimension L1, and calculate the prepreg length L3 based on the long side dimension L1 and the number of prepreg winding turns n.

[0012] S106: Cut the prepreg according to the prepreg width W1 and the prepreg length L3 to obtain a rectangular prepreg;

[0013] S107: Wrap each rectangular prepreg into the smallest unit mold according to the number of prepreg wrapping turns n, to obtain the next finished product smallest unit;

[0014] S108: Cut the rectangular prepreg wrapped around the smallest unit of the sub-finished product so that the rectangular prepreg is flush with the smallest unit mold to obtain the smallest unit.

[0015] In this embodiment of the invention, a first relational model is established based on the dimensions of the target material to be manufactured in advance. The dimensions and quantity of the minimum unit mold are calculated using the established first relational model, and the required number of molds are then manufactured. Subsequently, based on the dimensions of the minimum unit mold, the thickness of the minimum unit, the number of prepreg wraps around the minimum unit mold, the width of the prepreg, and the length of the prepreg are calculated using the established second relational model. The required rectangular prepreg is then cut out, and the rectangular prepreg is wound onto the minimum unit mold. Excess rectangular prepreg is then trimmed. By combining theoretical analysis with the manufacturing process, industrial production can be achieved. The manufactured KIP origami structure minimum unit has high precision, small error, and stable structure, resulting in better mechanical properties and a more stable structure for the target material manufactured based on the KIP origami structure minimum unit. Attached Figure Description

[0016] Figure 1 This is a schematic flowchart of a method for manufacturing the smallest unit of a KIP origami structure provided in an embodiment of the present invention.

[0017] Figure 2This is a schematic diagram of the structure of a minimum unit mold provided in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the manufacturing process of a minimum unit provided in an embodiment of the present invention.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] The following description, in conjunction with the accompanying drawings, details the method for manufacturing dissolved organic carbon using ultraviolet-visible spectroscopy provided by the present invention through specific embodiments and application scenarios.

[0022] Reference Figure 1 The diagram shows a flowchart illustrating a method for manufacturing the smallest unit of a KIP origami structure according to an embodiment of the present invention.

[0023] This invention provides a method for manufacturing the smallest unit of a KIP origami structure, comprising:

[0024] S101: Obtain the dimensions of the target material to be manufactured. The target material can be composed of multiple smallest units. The dimensions of the target material include the length L, width W, thickness t, and density ρ of the target material.

[0025] It is understandable that the size of the target material to be manufactured may vary depending on different requirements. Based on the obtained size data of the target material, the size data required for the manufacturing process of the smallest unit of the target material can be further calculated.

[0026] S102: Establish a first relationship model between the target material thickness t and the mold size of the minimum unit mold. Calculate the mold size of the minimum unit mold and the number a of minimum unit molds required to assemble the target material using the first relationship model. The mold size of the minimum unit mold includes the long side dimension L1 and the short side dimension L2.

[0027] In one possible implementation, S102 specifically includes:

[0028] S1021: Based on the KIP geometric structure model formula, establish the first relational model, which can be expressed as:

[0029]

[0030]

[0031]

[0032]

[0033] Where t represents the target material thickness, L1 represents the long side dimension of the minimum unit mold, L2 represents the short side dimension of the minimum unit mold, β represents the included angle between the two sides of the minimum unit mold, Φ represents the included angle between the two faces of the minimum unit mold, a represents the number of minimum unit molds required, L represents the target material length, and W represents the target material width.

[0034] S1022: Based on the first relational model, calculate the mold size of the smallest unit mold and the number a of the smallest unit molds required to assemble the target material.

[0035] Optionally, the included angle β between the two sides of the smallest unit mold is 60°.

[0036] It should be noted that the number of minimum unit molds is equal to the number of minimum units to be obtained.

[0037] Reference Figure 2 The diagram shows a structural schematic of the smallest unit mold provided in an embodiment of the present invention.

[0038] S103: Based on the mold size of the smallest unit mold, manufacture a smallest unit molds.

[0039] S104: Establish a second relationship model between the target material density ρ and the minimum unit thickness b, and calculate the minimum unit thickness b and the number of prepreg winding turns n through the second relationship model.

[0040] In one possible implementation, S104 specifically includes:

[0041] S1041: Establish a second relational model based on the KIP density model. The second relational model can be expressed as:

[0042]

[0043]

[0044] Where ρ represents the target material density, b represents the minimum unit thickness, b1 represents the prepreg thickness, and n represents the number of prepreg winding turns;

[0045] S1042: Calculate the minimum unit thickness and the number of winding turns according to the second relational model.

[0046] S105: Calculate the prepreg width W1 based on the long side dimension L1, and calculate the prepreg length L3 based on the long side dimension L1 and the number of prepreg winding turns n.

[0047] Optionally, the prepreg is epoxy resin carbon fiber prepreg or epoxy resin aramid paper prepreg.

[0048] Carbon fiber cannot be used alone because pure carbon fiber is extremely abrasion-resistant and requires pre-impregnation with epoxy resin.

[0049] It should be noted that prepreg is a composition of resin matrix and reinforcement made by impregnating continuous fibers or fiber fabrics with resin matrix under strictly controlled conditions. It is an intermediate material in the manufacture of composite materials.

[0050] In one possible implementation, S105 specifically includes:

[0051] S1051: Calculate the prepreg width W1 based on the long side dimension L1:

[0052]

[0053] In one possible implementation, S105 further includes:

[0054] S1052: Calculate the prepreg length L3 based on the long side dimension L1 and the number of prepreg winding turns n.

[0055] L3=2n×L1 Formula 8.

[0056] S106: Cut the prepreg according to the prepreg width W1 and the prepreg length L3 to obtain a rectangular prepreg.

[0057] Reference Figure 3 The diagram illustrates the manufacturing process of the smallest unit provided in an embodiment of the present invention.

[0058] in, Figure 3 In this diagram, 1 represents prepreg, 2 represents the smallest unit mold, and 3 represents the rotating shaft.

[0059] S107: Wrap each rectangular prepreg into the smallest unit mold according to the number of prepreg wraps n, to obtain the smallest unit of the second finished product.

[0060] In one possible implementation, S107 specifically includes:

[0061] S1071: Align the center of the side of the prepreg with the center of the side of the minimum unit mold with the center of the side of the prepreg width W1, and place the side of the prepreg width W1 to coincide with the side of the minimum unit mold with the center of the side ...

[0062] S108: Cut the rectangular prepreg wrapped around the smallest unit of the sub-finished product so that the rectangular prepreg is flush with the smallest unit mold to obtain the smallest unit.

[0063] The number of the smallest units manufactured is the same as the number of the smallest unit molds. By combining the manufactured smallest units, the target material can be obtained.

[0064] It should be noted that the smallest unit consists of four identical trapezoidal faces, and each trapezoidal face has a fixed angle of symmetry.

[0065] In practical applications, the minimum units obtained are combined to create the target material to be manufactured. The target material of the KIP geometry manufactured in this way can drain the water inside the interlayer material in a timely manner, has good mechanical properties, can be used as a load-bearing material, and also has the function of laying cables in multiple directions inside the material.

[0066] In this embodiment of the invention, a first relational model is established based on the dimensions of the target material to be manufactured in advance. The dimensions and quantity of the minimum unit mold are calculated using the established first relational model, and the required number of molds are then manufactured. Subsequently, based on the dimensions of the minimum unit mold, the thickness of the minimum unit, the number of prepreg wraps around the minimum unit mold, the width of the prepreg, and the length of the prepreg are calculated using the established second relational model. The required rectangular prepreg is then cut out, and the rectangular prepreg is wound onto the minimum unit mold. Excess rectangular prepreg is then trimmed. By combining theoretical analysis with the manufacturing process, the manufactured KIP origami structure minimum unit has high precision, small error, and stable structure. As a result, the target material manufactured based on the KIP origami structure minimum unit has better mechanical properties and a more stable structure.

[0067] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for manufacturing the smallest unit of a KIP origami structure, characterized in that, include: S101: Obtain the dimensions of the target material to be manufactured, wherein the target material may be composed of multiple smallest units, and the dimensions of the target material include the target material length L, the target material width W, the target material thickness t, and the target material density ρ; S102: Establish a first relationship model between the thickness t of the target material and the mold size of the minimum unit mold, and calculate the mold size of the minimum unit mold and the number a of the minimum unit molds required to assemble the target material through the first relationship model, wherein the mold size of the minimum unit mold includes the long side dimension L1 and the short side dimension L2; S103: Manufacture a units of the minimum unit mold according to the mold size of the minimum unit mold; S104: Establish a second relationship model between the target material density ρ and the minimum unit thickness b, and calculate the minimum unit thickness b and the number of prepreg winding turns n through the second relationship model; S105: Calculate the prepreg width W1 based on the long side dimension L1, and calculate the prepreg length L3 based on the long side dimension L1 and the number of prepreg winding turns n. S106: Cut the prepreg according to the prepreg width W1 and the prepreg length L3 to obtain a rectangular prepreg; S107: Wrap each rectangular prepreg onto the smallest unit mold according to the number of prepreg wraps n, to obtain the next finished product smallest unit; S108: The rectangular prepreg wrapped around the smallest unit of the sub-finished product is cut so that the rectangular prepreg is flush with the smallest unit mold to obtain the smallest unit.

2. The manufacturing method according to claim 1, characterized in that, S102 specifically includes: S1021: Based on the KIP geometric structure model formula, establish the first relational model, which can be expressed as: Where t represents the thickness of the target material, L1 represents the long side dimension of the minimum unit mold, L2 represents the short side dimension of the minimum unit mold, β represents the included angle between the two sides of the minimum unit mold, Φ represents the included angle between the two faces of the minimum unit mold, a represents the required number of minimum unit molds, L represents the length of the target material, and W represents the width of the target material; S1022: Based on the first relational model, calculate the mold size of the minimum unit mold and the number a of the minimum unit molds required to assemble the target material.

3. The manufacturing method according to claim 2, characterized in that, The included angle β between the two sides of the smallest unit mold is 60°.

4. The manufacturing method according to claim 2, characterized in that, S104 specifically includes: S1041: Establish the second relational model based on the KIP density model. The second relational model can be expressed as follows: Wherein, ρ represents the density of the target material, b represents the thickness of the minimum unit, b1 represents the thickness of the prepreg, and n represents the number of prepreg winding turns; S1042: Calculate the minimum unit thickness and the number of prepreg winding turns according to the second relationship model.

5. The manufacturing method according to claim 4, characterized in that, Specifically, S105 includes: S1051: Calculate the prepreg width W1 based on the long side dimension L1:

6. The manufacturing method according to claim 4, characterized in that, The S105 further includes: S1052: Calculate the prepreg length L3 based on the long side dimension L1 and the number of prepreg winding turns n: L3=2n×L1 Formula 8.

7. The manufacturing method according to claim 1, characterized in that, Specifically, S107 includes: S1071: Align the center of the side of the prepreg with the center of the side of the minimum unit mold with the center of the side of the width W1 of the prepreg, and place the side of the width W1 of the prepreg and the side of the minimum unit mold with the center of the width L1 of the prepreg to coincide; S1072: Rotate and wind the prepreg according to the number of winding turns n, using the axis parallel to the side of the minimum unit mold with the center of the width L1 of the prepreg as the rotation axis, to obtain the minimum unit of the secondary finished product.

8. The manufacturing method according to claim 1, characterized in that, The length L1 of the smallest unit mold is twice the length L2 of the short side.

Images