Sound barrier operation method based on 3D printing

Abstract

The invention relates to a sound barrier operation method based on 3D printing. A sound barrier three-dimensional model is designed according to requirements; model optimization and verification: converting the three-dimensional model into a format suitable for 3D printing, performing acoustic simulation and finite element analysis by using simulation software to verify the acoustic performance of the sound barrier, and optimizing the three-dimensional model as required according to a simulation result; a slicing file is generated, slicing software is used for converting the 3D model into a G-code file recognized by a printer, and printing parameters are set; uploading the generated G-code file to a printer and starting a printing process; post-processing: cleaning the printed finished product and removing the supporting structure; and mounting and testing: mounting the printed sound barrier at an actual use position, carrying out field testing, and carrying out adjustment and optimization. A joint verification mechanism of acoustic simulation and finite element analysis is introduced, the noise reduction efficiency and the structural integrity of the sound barrier are synchronously optimized, the actual noise reduction amount is improved, and the structural cracking risk is reduced.

Description

Technical Field

[0001] The present invention relates to the field of 3D printing engineering technology, and in particular to a sound barrier operation method based on 3D printing. Background Art

[0002] The current traditional design method for sound barrier manufacturing relies on standardized molds, which are difficult to adapt to complex acoustic structures. Although existing 3D printing technology supports customized modeling, including building three-dimensional models, converting data to 3D printing systems, layered slicing, setting 3D printing parameters, printing and installation, there is a lack of a joint verification mechanism for acoustic performance and structural reliability after the model construction stage, resulting in frequent noise reduction efficiency or structural cracking problems in the printed products in actual applications.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, an embodiment of the present invention discloses a sound barrier operation method based on 3D printing to solve the problem of lack of a joint verification mechanism for acoustic performance and structural reliability after the model construction stage, and the frequent problems of insufficient noise reduction efficiency or structural cracking of printed products in actual applications.

[0005] The technical solutions adopted in the present invention are as follows: A method for operating a sound barrier based on 3D printing, characterized by comprising the following steps: Step S1, designing a three-dimensional model of a sound barrier according to requirements; Step S2, model optimization and verification: convert the 3D model into a format suitable for 3D printing, use simulation software to perform acoustic simulation and finite element analysis to verify the acoustic performance of the sound barrier, and optimize the 3D model as needed based on the simulation results; Step S3, generating a slice file: using slice software to convert the 3D model into a G-code file recognized by the printer and set printing parameters; Step S4, printing: uploading the generated G-code file to the printer and starting the printing process; Step S5, post-processing: cleaning the printed product and removing the support structure; Step S6, installation and testing: Install the printed sound barrier at the actual location of use and conduct on-site testing and make adjustments and optimizations.

[0006] A further technical solution is that the design of the three-dimensional model of the sound barrier in step S1 includes: Use CAD software to design the three-dimensional model of the sound barrier and the parameters of the sound barrier, including the height, length, thickness and surface texture of the sound barrier.

[0007] A further technical solution is that the length of the sound barrier needs to be determined based on the length of the sound source and the range of the sensitive area that needs to be protected, and its length is greater than the length of the sensitive area.

[0008] A further technical solution is that step S4 includes: Step S401, test printing: Test printing a portion of the sound barrier or a reduced version, and visually inspect the test print results for defects, such as warping and poor interlayer adhesion. If defects are found, adjust the print bed temperature, increase the fill density, or add an internal truss structure, and test print again. If not, jump to step S402. Step S402, formal printing: uploading the generated G-code file to the printer and starting printing.

[0009] A further technical solution is that, before step S401, the following steps are further included: Step S400, prepare the 3D printer: check the printer status, clean the print bed, check the nozzle, load the printing material, and use fine aggregates below 5mm and recycled materials.

[0010] A further technical solution is that the step of cleaning the printed product in step S5 includes: Perform surface treatment on the sound barrier, including sanding, coating or painting.

[0011] A further technical solution is that the design of the three-dimensional model of the sound barrier in step S1 further includes: Design the material parameters of the sound barrier, which include the material's sound absorption coefficient, sound insulation and damping coefficient.

[0012] A further technical solution is that the printing parameters in step S3 include layer thickness, filling density and support structure during printing.

[0013] The beneficial effects of the embodiments of the present invention are as follows: (1) A method for operating a sound barrier based on 3D printing, which includes designing a three-dimensional model of the sound barrier according to requirements; model optimization and verification, converting the three-dimensional model into a format suitable for 3D printing, using simulation software to perform acoustic simulation and finite element analysis to verify the acoustic performance of the sound barrier, and optimizing the three-dimensional model as needed based on the simulation results; generating a slice file, using slicing software to convert the 3D model into a G-code file recognized by the printer and setting printing parameters; uploading the generated G-code file to the printer and starting the printing process; post-processing, cleaning the printed product and removing the support structure; installation and testing, installing the printed sound barrier at the actual use location, conducting on-site testing, and making adjustments and optimizations. A joint verification mechanism of acoustic simulation and finite element analysis is introduced to simultaneously optimize the noise reduction efficiency and structural integrity of the sound barrier, thereby improving the actual noise reduction and reducing the risk of structural cracking.

[0014] (2) Further, through small-scale trial printing of a partial or scaled model of the sound barrier, verify the rationality of the design and the accuracy of the printing parameters, focus on detecting defects such as warping and poor interlayer bonding, and ensure that there are no structural errors; after confirmation, enter the formal printing stage, import the G-code file into the printer and monitor the process throughout, deal with material blockage, temperature abnormalities and other problems in real time, ensure printing continuity and product quality, and avoid waste of resources caused by large-scale printing failures.

[0015] (3) Furthermore, when loading printing materials, material usage can be controlled, reducing material waste. When printing sound barriers, fine aggregates under 5mm and recycled materials are used, achieving resource recycling, reducing the demand for new materials, and contributing to environmental protection. Furthermore, by adjusting the printing material, staff can achieve sound barriers with different strength levels from C30 to C150, adapting to various load requirements and usage environments, and improving structural safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flow chart of a sound barrier operation method based on 3D printing of the present invention.

[0017] Figure 2 This is a flowchart of uploading a generated G-code file to a printer and starting the printing process in a 3D printing-based sound barrier operation method of the present invention. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] Example: like Figure 1As shown, a 3D printing-based sound barrier operation method includes the following steps: Step S1: design a three-dimensional model of the sound barrier according to requirements.

[0020] For example, a 3D model of the sound barrier is designed using CAD software based on the requirements, ensuring that the model meets the required acoustic performance and structural requirements. Designing the 3D model of the sound barrier in step S1 also requires setting dimensions and details, including the height, length, thickness, and surface texture of the barrier. The higher the barrier height, the better the noise reduction effect. The length of the barrier should be determined based on the length of the sound source and the extent of the sensitive area to be protected. The barrier should be longer than the sensitive area to prevent sound waves from diffracting from both ends of the barrier, effectively reducing noise. Specifically, sensitive areas include fixed sensitive points, linear sensitive zones and regional sensitive zones. Fixed sensitive points include single buildings such as hospitals and schools, with a boundary of 10m outside the outer contour of the building. Linear sensitive zones include residential areas along roads or railways, with the facade of the first row of buildings facing the sound source as the benchmark, and a range of 50m in depth. Regional sensitive zones include nature reserves or parks, and are implemented according to the Class 2 standards in the "Technical Specifications for the Division of Acoustic Environment Functional Zones". Designers can freely design the shape and structure of the sound barrier according to actual needs to improve the individuality and functionality of the design. The shapes of the sound barrier include upright, folded arm, inclined and closed. Sound barriers of different shapes have different reflection, refraction and diffraction effects on sound waves, thereby affecting the noise reduction effect and landscape effect.

[0021] Designing a three-dimensional sound barrier model also requires material parameters, including the material's sound absorption coefficient, sound insulation, and damping coefficient. Specifically, the sound absorption coefficient represents a material's ability to absorb sound wave energy. A higher sound absorption coefficient indicates better sound absorption, effectively reducing sound wave reflections on the barrier's surface and minimizing the impact of reflected sound on the surrounding environment. Sound insulation reflects a material's ability to block the propagation of sound waves. A higher sound insulation value indicates better sound insulation, effectively preventing noise from propagating from the source to the protected area. A higher damping coefficient indicates greater internal loss and friction, converting vibration energy into heat and altering the frequency characteristics of the noise. This effectively avoids resonance and conformational effects in materials like steel plates, thereby improving the overall effectiveness of the sound barrier.

[0022] Step S2, model optimization and verification: Convert the 3D model into .stl format suitable for 3D printing, use COMSOL or ANSYS software to perform acoustic simulation and finite element analysis to verify the acoustic performance of the sound barrier, and optimize the 3D model as needed based on the simulation results.

[0023] Step S3, Generate Slice File: Use Cura or Simplify3D slicing software to convert the .stl format 3D model into a G-code file in .gcode format that the printer can recognize and set the printing parameters. Exemplarily, the printing parameters in step S3 include layer thickness, infill density, and support structure during printing.

[0024] Step S4, printing: uploading the generated G-code file to the printer and starting the printing process.

[0025] Step S5, post-processing: cleaning the printed product and removing the support structure. Exemplarily, the cleaning in step S5 includes surface treatment of the sound barrier, such as polishing, coating, or coloring.

[0026] Step S6, installation and testing: Install the printed sound barrier at the actual location of use and conduct on-site testing and make adjustments and optimizations.

[0027] like Figure 2 As shown, further, step S4 includes: Step S401, trial printing: trial print a portion of the sound barrier or a reduced version, and visually inspect the trial print results for defects, including warping and poor interlayer adhesion; if there are defects, adjust the print bed temperature, increase the filling density or add an internal truss structure, and retry printing; if not, jump to step S402.

[0028] Step S402, formal printing: upload the generated G-code file to the printer and start the printing process, monitor the printing process to ensure the smooth progress of the printing process, and deal with any problems in a timely manner.

[0029] First, a small-scale trial printing of a partial or scaled model of the sound barrier is performed to verify the rationality of the design and the accuracy of the printing parameters, with a focus on detecting defects such as warping and poor interlayer adhesion to ensure there are no structural errors. After confirmation, the formal printing stage begins, the G-code file is imported into the printer and the entire process is monitored. Problems such as material blockage and temperature anomalies are handled in real time to ensure printing continuity and finished product quality, thereby avoiding waste of resources caused by large-scale printing failures.

[0030] like Figure 2 As shown, further, before step S401, the following is also included: Step S400: Prepare the 3D printer, check the printer status, clean the print bed, inspect the nozzle, load the printing material, and select the appropriate material based on the design requirements. 3D printing technology can control material usage and reduce waste. In particular, the use of fine aggregates under 5mm and recycled materials in printing sound barriers recycles resources, reduces the demand for new materials, and contributes to environmental protection. Furthermore, by adjusting the printing material, staff can produce sound barriers with varying strength levels, from C30 to C150, to accommodate various load requirements and operating environments, enhancing structural safety.

[0031] In this embodiment, a joint verification mechanism of acoustic simulation and finite element analysis is introduced to simultaneously optimize the noise reduction efficiency and structural integrity of the sound barrier, thereby improving the actual noise reduction amount and reducing the risk of structural cracking.

[0032] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for operating a sound barrier based on 3D printing, characterized in that: The following steps are involved: Step S1, designing a three-dimensional model of a sound barrier according to requirements; Step S2, model optimization and verification: convert the 3D model into a format suitable for 3D printing, use simulation software to perform acoustic simulation and finite element analysis to verify the acoustic performance of the sound barrier, and optimize the 3D model as needed based on the simulation results; Step S3, generating a slice file: using slice software to convert the 3D model into a G-code file recognized by the printer and set printing parameters; Step S4, printing: uploading the generated G-code file to the printer and starting the printing process; Step S5, post-processing: cleaning the printed product and removing the support structure; Step S6, installation and testing: Install the printed sound barrier at the actual location of use and conduct on-site testing and make adjustments and optimizations.

2. A 3D printing-based sound barrier operation method according to claim 1, characterized in that: The design of the three-dimensional model of the sound barrier in step S1 includes: Use CAD software to design the three-dimensional model of the sound barrier and the parameters of the sound barrier, including the height, length, thickness and surface texture of the sound barrier.

3. The method for operating a sound barrier based on 3D printing according to claim 2, characterized in that: The length of the sound barrier needs to be determined based on the length of the sound source and the scope of the sensitive area that needs to be protected, and its length should be greater than the length of the sensitive area.

4. The method for operating a sound barrier based on 3D printing according to claim 1, characterized in that: The step S4 comprises: Step S401, trial printing: a portion of the sound barrier or a reduced version is trial printed, and the trial print result is visually inspected for defects, such as warping and poor interlayer adhesion. If defects are found, the print bed temperature is adjusted, the fill density is increased, or an internal truss structure is added. If not, the process proceeds to step S402. Step S402, formal printing: uploading the generated G-code file to the printer and starting printing.

5. The method for operating a sound barrier based on 3D printing according to claim 4, characterized in that: Before step S401, the following steps are also included: Step S400, prepare the 3D printer: check the printer status, clean the print bed, check the nozzle, load the printing material, and use fine aggregates below 5mm and recycled materials.

6. The method for operating a sound barrier based on 3D printing according to claim 1, characterized in that: The step of cleaning the printed product in step S5 includes: Perform surface treatment on the sound barrier, including sanding, coating or painting.

7. The method for operating a sound barrier based on 3D printing according to claim 2, characterized in that: The design of the three-dimensional model of the sound barrier in step S1 further includes: Design the material parameters of the sound barrier, which include the material's sound absorption coefficient, sound insulation and damping coefficient.

8. The method for operating a sound barrier based on 3D printing according to claim 1, characterized in that: The printing parameters in step S3 include layer thickness, filling density and support structure during printing.

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