Preparation method of ship pipeline supporting structure system and related equipment

Abstract

The invention provides a ship pipeline supporting structure system preparation method and related equipment, and the ship pipeline supporting structure system preparation method comprises the following steps: obtaining a target porosity gradient and a bearing direction of a ship pipeline system, simulating the unit cell form and gradient distribution of the three-period minimum curved surface based on the target porosity gradient and the bearing direction to obtain a three-period minimum curved surface simulation result; based on the three-period minimum curved surface simulation result, constructing a three-period minimum curved surface structure through an additive manufacturing technology; and the three-period minimal curved surface structure serves as a connecting structure to be embedded into a ship pipeline supporting system. According to the technical scheme, the target porosity gradient design and the additive manufacturing technology are combined, a layered damage mechanism is achieved, and the specific energy absorption and axial bearing capacity of a ship pipeline supporting structure system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship acoustic performance control, and particularly relates to a preparation method and related equipment for a ship pipeline support structure system. Background Art

[0002] Ship pipeline systems are prone to failure under explosion shock. Traditional rigid connection structures have low energy absorption efficiency and are prone to stress concentration. In the prior art, although homogeneous porous structures (such as honeycombs and foams) have certain energy absorption effects, their performance is limited by pore uniformity and manufacturing accuracy. In recent years, triply periodic minimal surface (TPMS) structures have attracted attention due to their high specific strength and lightweight characteristics. However, the energy absorption efficiency of homogeneous TPMS structures under complex loads still needs to be improved. Summary of the Invention

[0003] The present invention provides a preparation method and related equipment for a ship pipeline support structure system to solve the defects in the prior art.

[0004] The present invention provides a preparation method for a ship pipeline support structure system, including: Obtaining a target porosity gradient and the load-bearing direction of the ship pipeline system, and simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain a triply periodic minimal surface simulation result; Based on the triply periodic minimal surface simulation result, constructing a triply periodic minimal surface structure through additive manufacturing technology; Embedding the triply periodic minimal surface structure as a connection structure into the ship pipeline support system.

[0005] According to the preparation method for a ship pipeline support structure system provided by the present invention, the constructing a triply periodic minimal surface structure through additive manufacturing technology based on the triply periodic minimal surface simulation result includes: Based on the triply periodic minimal surface simulation result, integrally forming the triply periodic minimal surface structure through additive manufacturing technology.

[0006] According to the preparation method for a ship pipeline support structure system provided by the present invention, the additive manufacturing materials used in the additive manufacturing technology include at least one of titanium alloy, aluminum alloy or high-strength steel, and the material density of the additive manufacturing materials matches the target porosity gradient.

[0007] According to the preparation method for a ship pipeline support structure system provided by the present invention, the additive manufacturing technology includes selective laser melting technology or electron beam melting technology.

[0008] A method for preparing a ship pipeline support structure system according to the present invention, simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain the triply periodic minimal surface simulation result, including: Simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction, and iteratively optimizing the wall thickness parameters of the triply periodic minimal surface structure based on the level set equation to obtain the triply periodic minimal surface simulation result.

[0009] A method for preparing a ship pipeline support structure system according to the present invention, the simulated triply periodic minimal surface includes one or more of Gyroid surface, Diamond surface or IWP surface.

[0010] A method for preparing a ship pipeline support structure system according to the present invention, the target porosity gradient is 60% to 80%.

[0011] A method for preparing a ship pipeline support structure system according to the present invention, the triply periodic minimal surface structure has a linear porosity gradient in the axial direction, and the direction of the linear porosity gradient is the same as the load-bearing direction.

[0012] The present invention also provides a triply periodic minimal surface structure, which is prepared by the method for preparing a ship pipeline support structure system according to any one of the above.

[0013] The present invention also provides a ship pipeline support structure system, which is prepared by the method for preparing a ship pipeline support structure system according to any one of the above.

[0014] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, it implements the method for preparing a ship pipeline support structure system according to any one of the above.

[0015] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the method for preparing a ship pipeline support structure system according to any one of the above.

[0016] The present invention also provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the method for preparing a ship pipeline support structure system according to any one of the above.

[0017] The preparation method and related equipment of the ship pipeline support structure system provided by the present invention, through the design of the target porosity gradient, combined with the unit cell morphology of the triply periodic minimal surface, use the additive manufacturing technology to construct the triply periodic minimal surface structure, so that the structure shows a characteristic of hierarchical progressive failure during the compression process, significantly improving the bearing capacity and specific energy absorption performance, while maintaining the lightweight characteristic. Embedding the triply periodic minimal surface structure into the ship pipeline support structure solves the problems such as stress concentration and insufficient energy absorption caused by impact in the ship pipeline system. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic flowchart of the preparation method of the ship pipeline support structure system provided by the present invention.

[0020] Figure 2 It is a schematic diagram of the triply periodic minimal surface structure related to the present invention.

[0021] Figure 3 It is a schematic diagram for comparing the stress-strain curves of the triply periodic minimal surface structures constructed based on the Gyroid surface at different loading angles in the embodiments of the present invention.

[0022] Figure 4 It is a schematic diagram for comparing the stress-strain curves of the triply periodic minimal surface structures constructed based on the Diamond surface at different loading angles in the embodiments of the present invention.

[0023] Figure 5 It is a schematic diagram for comparing the stress-strain curves of the triply periodic minimal surface structures constructed based on the IWP surface at different loading angles in the embodiments of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Embodiments

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0026] Figure 1 is a flowchart of a preparation method for a ship pipeline support structure system shown according to an exemplary embodiment. As Figure 1 shown, in an exemplary embodiment, the preparation method for the ship pipeline support structure system includes steps 110 to 130, which are introduced in detail as follows.

[0027] Step 110: Obtain the target porosity gradient and the load-bearing direction of the ship pipeline system, and simulate the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain the simulation result of the triply periodic minimal surface.

[0028] In the embodiment of the present invention, based on the target porosity gradient and the load-bearing direction, the unit cell morphology and gradient distribution of the triply periodic minimal surface are optimized through finite element simulation.

[0029] Step 120: Based on the simulation result of the triply periodic minimal surface, construct a triply periodic minimal surface structure through additive manufacturing technology.

[0030] In the embodiment of the present invention, additive manufacturing technology (AM), also known as 3D printing technology, is a technology for manufacturing solid parts by the method of layer-by-layer material accumulation according to three-dimensional CAD data. Based on the simulation result of the triply periodic minimal surface, a triply periodic minimal surface structure can be quickly constructed through additive manufacturing technology, specifically as Figure 2 shown.

[0031] Step 130: Embed the triply periodic minimal surface structure into the ship pipeline support system as a connecting structure.

[0032] In the embodiment of the present invention, the formed triply periodic minimal surface structure is embedded into the ship pipeline support system to replace the traditional rigid connection structure and form a non-rigid anti-impact connection. Specifically, the triply periodic minimal surface structure constructed by the present invention is used to replace the vibration damping structure in the ship pipeline support system.

[0033] In the embodiments of the present invention, by combining the targeted porosity gradient design with additive manufacturing technology, a hierarchical failure mechanism is achieved, significantly improving the specific energy absorption and axial load-bearing capacity of the triply periodic minimal surface (TPMS) structure. The above-mentioned TPMS structure is integrally formed by additive manufacturing technology. Its unit cell morphology and gradient design enable the structure to exhibit hierarchical and progressive failure characteristics during compression, enhancing the axial load-bearing capacity and specific energy absorption performance. The energy absorption path is optimized through axial gradient design to avoid the stress shielding effect, while additive manufacturing technology enables high-precision forming of complex structures, ensuring performance consistency. The hierarchical failure mechanism significantly improves the anti-impact safety and system reliability. The specific energy absorption (SEA) of the axially graded TPMS structure is increased by 10% - 30% compared with the homogeneous TPMS structure. The yield strength is dominated by the side with a higher porosity, and the plateau stress is increased by 5% - 20%.

[0034] In an exemplary embodiment of the present invention, based on the simulation results of the triply periodic minimal surface, constructing a triply periodic minimal surface structure by additive manufacturing technology includes: Based on the simulation results of the triply periodic minimal surface, integrally forming the triply periodic minimal surface structure by additive manufacturing technology.

[0035] In the embodiments of the present invention, based on the simulation results of the triply periodic minimal surface, a complex and lightweight triply periodic minimal surface structure is integrally formed by additive manufacturing technology, reducing the manufacturing time and cost, and improving the manufacturing precision and complexity.

[0036] In an exemplary embodiment of the present invention, the additive manufacturing materials used in the additive manufacturing technology include at least one of titanium alloy, aluminum alloy, or high-strength steel, and the material density of the additive manufacturing materials matches the targeted porosity gradient.

[0037] In the embodiments of the present invention, the additive manufacturing materials are titanium alloy, aluminum alloy, or high-strength steel, and the material density matches the gradient porosity to optimize the lightweight and energy absorption performance.

[0038] In an exemplary embodiment of the present invention, the additive manufacturing technology includes selective laser melting technology or electron beam melting technology.

[0039] In the embodiments of the present invention, selective laser melting technology uses a laser as an energy source to scan layer by layer on a metal powder bed according to the path planned in the three-dimensional CAD model, enabling the scanned metal powder to achieve metallurgical bonding through melting and solidification, and finally obtaining the designed metal part. Through selective laser melting technology, parts that are nearly fully dense and have good mechanical properties can be directly formed. The mechanical properties, dimensional accuracy, etc. of the formed parts are better, and they can be put into use with only simple post-treatment. Moreover, the raw materials used for forming do not need to be specially prepared.

[0040] Electron beam melting technology is a rapid manufacturing technology that uses a high-energy and high-speed electron beam to selectively bombard metal powder, thereby melting and forming the powder material. Electron beam melting technology has the advantages of high energy utilization rate, large action depth, high material absorption rate, stability, and low operation and maintenance costs. At the same time, the forming process is efficient, the parts have small deformation, the forming process does not require metal support, and the microstructure is denser.

[0041] In an exemplary embodiment of the present invention, simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the loading direction to obtain the triply periodic minimal surface simulation result includes: Simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the loading direction, and iteratively optimizing the wall thickness parameters of the triply periodic minimal surface structure based on the level set equation to obtain the triply periodic minimal surface simulation result.

[0042] In an embodiment of the present invention, the wall thickness of the triply periodic minimal surface structure is controlled by the level set equation, and the level set equation is shown in Table 1 below: Table 1

[0043] The level set equation is a core equation in a numerical technique for interface tracking and shape modeling, that is, the zero level set of a high-dimensional function is used to represent a curve or surface of one lower dimension, and the properties of the low-dimensional curve or surface are indirectly studied by studying the properties of the high-dimensional function. Therefore, the wall thickness of the triply periodic minimal surface structure can be accurately controlled based on the level set equation.

[0044] In an exemplary embodiment of the present invention, the simulated triply periodic minimal surface includes one or more of the Gyroid surface, the Diamond surface, or the IWP surface.

[0045] In an embodiment of the present invention, the Gyroid surface is a surface in three-dimensional space, having a unique geometric structure and mathematical properties. The shape of the Diamond surface is similar to the lattice structure of a diamond, having a high degree of symmetry and regularity. This surface is helpful for studying certain materials with specific crystal structures in materials science, and is also commonly used in art design and architecture fields to create works with unique aesthetic and visual effects.

[0046] The IWP (Icosahedral Wave Pattern) surface is a complex surface constructed based on icosahedral symmetry, showing a pattern similar to a ripple.

[0047] As Figure 3 、 Figure 4 、 Figure 5 shown,Figure 3 , Figure 4 , Figure 5 They are respectively the stress-strain curve comparisons of the triply periodic minimal surface structures constructed based on the Gyroid surface, Diamond surface or IWP surface under different bearing angles.

[0048] In an embodiment of the present invention, taking the Gyroid surface as an example, the porosity gradient range (60% - 80%) is determined through finite element simulation, and the triply periodic minimal surface structure of titanium alloy gradient is formed by using the selective laser melting (SLM) technology. Integrating this structure into the ship pipeline support system, the test shows that its specific energy absorption is increased by 25% compared with the homogeneous structure, the platform stress is increased by 15%, and the weight is reduced by 30%.

[0049] In an exemplary embodiment of the present invention, the target porosity gradient is 60% to 80%.

[0050] In an exemplary embodiment of the present invention, the triply periodic minimal surface structure has a linear porosity gradient in the axial direction, and the direction of the linear porosity gradient is the same as the bearing direction.

[0051] In an embodiment of the present invention, the constructed triply periodic minimal surface structure is composed of a triply periodic minimal surface (TPMS). This structure has a linear porosity gradient in the axial direction (Z direction), and the direction of the porosity gradient is consistent with the main bearing direction of the ship pipeline system.

[0052] In an exemplary embodiment of the present invention, a triply periodic minimal surface structure is provided, which is prepared according to the preparation method of the ship pipeline support structure system described in any one of the above.

[0053] In an embodiment of the present invention, as Figure 2 shown, the triply periodic minimal surface structure prepared according to the preparation method of the ship pipeline support structure system described in any one of the above can be applied to lightweight anti-impact components in the aerospace field, energy-absorbing anti-collision structures in the automotive industry, and intelligent protection equipment, dynamically adapting to impact loads.

[0054] In an embodiment of the present invention, a ship pipeline support structure system is provided, which is prepared according to the preparation method of the ship pipeline support structure system described in any one of the above.

[0055] In the embodiments of the present invention, the constructed triply periodic minimal surface structure is designed with an axial linear porosity gradient, combined with the unit cell morphology of the triply periodic minimal surface, and constructed by additive manufacturing technology, so that the structure exhibits a characteristic of hierarchical progressive failure during the compression process, significantly improving the axial load-bearing capacity and specific energy absorption performance, while maintaining the lightweight characteristic. Embedding the triply periodic minimal surface structure into the ship pipeline support structure solves the problems of stress concentration and insufficient energy absorption caused by impact in the ship pipeline system, and is applicable to the shipborne equipment pipeline support system with high anti-impact requirements.

[0056] Figure 6 An example of a schematic physical structure diagram of an electronic device is shown as Figure 6 shown. The electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640. Among them, the processor 610, the communication interface 620, and the memory 630 complete mutual communication through the communication bus 640. The processor 610 may call the logical instructions in the memory 630 to execute the method for preparing the ship pipeline support structure system. The method includes: obtaining the target porosity gradient and the load-bearing direction of the ship pipeline system, and simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain the simulation result of the triply periodic minimal surface; Based on the simulation result of the triply periodic minimal surface, construct the triply periodic minimal surface structure by additive manufacturing technology; Embed the triply periodic minimal surface structure as a connection structure into the ship pipeline support system.

[0057] In addition, when the logical instructions in the above-mentioned memory 630 are implemented in the form of software functional units and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0058] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the method for preparing a ship pipeline support structure system provided by each of the above methods. The method includes: obtaining a target porosity gradient and the load-bearing direction of the ship pipeline system, and simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain a simulation result of the triply periodic minimal surface; Based on the simulation result of the triply periodic minimal surface, construct a triply periodic minimal surface structure by additive manufacturing technology; Embed the triply periodic minimal surface structure as a connection structure into the ship pipeline support system.

[0059] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the method for preparing a ship pipeline support structure system provided by each of the above methods. The method includes: obtaining a target porosity gradient and the load-bearing direction of the ship pipeline system, and simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain a simulation result of the triply periodic minimal surface; Based on the simulation result of the triply periodic minimal surface, construct a triply periodic minimal surface structure by additive manufacturing technology; Embed the triply periodic minimal surface structure as a connection structure into the ship pipeline support system.

[0060] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0061] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, also by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A preparation method for a ship pipeline support structure system, characterized in that Comprising: Obtain a target porosity gradient and the load-bearing direction of the ship pipeline system, and simulate the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain a triply periodic minimal surface simulation result; Based on the triply periodic minimal surface simulation result, construct a triply periodic minimal surface structure through additive manufacturing technology; Embed the triply periodic minimal surface structure as a connecting structure into the ship pipeline support system.

2. The preparation method of the ship pipeline support structure system according to claim 1, characterized in that, The constructing the triply periodic minimal surface structure through additive manufacturing technology based on the triply periodic minimal surface simulation result includes: Based on the triply periodic minimal surface simulation result, integrally form and construct the triply periodic minimal surface structure through additive manufacturing technology.

3. The preparation method of the ship pipeline support structure system according to claim 2, characterized in that, The additive manufacturing material used in the additive manufacturing technology includes at least one of titanium alloy, aluminum alloy or high-strength steel, and the material density of the additive manufacturing material matches the target porosity gradient.

4. The preparation method of the ship pipeline support structure system according to claim 1, characterized in that The additive manufacturing technology includes selective laser melting technology or electron beam melting technology.

5. The preparation method of the ship pipeline support structure system according to claim 1, characterized in that, The simulating the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction to obtain a triply periodic minimal surface simulation result includes: Simulate the unit cell morphology and gradient distribution of the triply periodic minimal surface based on the target porosity gradient and the load-bearing direction, and iteratively optimize the wall thickness parameters of the triply periodic minimal surface structure based on the level set equation to obtain the triply periodic minimal surface simulation result.

6. The preparation method of the ship pipeline support structure system according to claim 1, characterized in that The simulated triply periodic minimal surface includes one or more of Gyroid surface, Diamond surface or IWP surface.

7. The preparation method of the ship pipeline support structure system according to claim 1, characterized in that, The target porosity gradient is 60% to 80%.

8. The preparation method of the ship pipeline support structure system according to any one of claims 1 to 7, characterized in that The triply periodic minimal surface structure has a linear porosity gradient in the axial direction, and the direction of the linear porosity gradient is the same as the load-bearing direction.

9. A three-periodic minimal surface structure, characterized in that, Prepared by the method for preparing a ship pipeline support structure system according to any one of claims 1 to 8.

10. A ship pipeline support structure system, characterized in that, Prepared by the method for preparing a ship pipeline support structure system according to any one of claims 1 to 8.

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