Transparent observation window multi-physics field coupling optimization method and related device

Abstract

The application belongs to the field of power equipment structure optimization, and discloses a transparent observation window multi-physical field coupling optimization method and related devices, which comprises the following steps: performing bolt pretightening force stress analysis on a simulation geometric model of a transformer transparent observation window that has been established until the bolt pretightening force stress analysis result meets the design requirement; performing liquid pressure stress analysis on the simulation geometric model whose bolt pretightening force stress analysis result meets the design requirement until the liquid pressure stress analysis result meets the design requirement; performing liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis result meets the design requirement until the liquid expansion stress analysis result meets the design requirement; and performing thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis result meets the design requirement until the thermal expansion stress analysis result meets the design requirement. The application considers the multi-physical field coupling factor and optimizes the transparent observation window to improve the explosion-proof performance and operation reliability.

Description

Technical Field

[0001] This invention belongs to the field of power equipment structure optimization and is mainly used for the structural design of transparent observation windows. Specifically, it relates to a multi-physics field coupling optimization method and related devices for transparent observation windows. Background Technology

[0002] Transformers are crucial electrical equipment in power systems, primarily used for voltage transformation to ensure efficient transmission and distribution of electrical energy. They can boost the electricity generated by power plants to extremely high voltages for long-distance transmission, significantly reducing losses along the way. Once the electricity reaches cities and towns, it is gradually reduced to safe voltages suitable for factories and homes. More importantly, through their robust structure and insulation system, transformers provide a stable support for the power grid, offering electrical isolation, effectively buffering various voltage fluctuations and fault impacts, and optimizing power transmission. They are the cornerstone of ensuring the safe, stable, and reliable operation of the entire power system.

[0003] In transformer design, the outer casing is generally a closed structure. To observe the internal condition of the transformer, transparent observation windows have been introduced to achieve real-time visualization and monitoring of the internal state. However, traditional observation windows are prone to deformation, oil leakage, or even damage under combined loads (such as internal expansion stress, fluid pressure, and thermal expansion stress), affecting the transformer's explosion-proof performance and long-term stable operation. Previous studies have mostly focused on the overall characteristics of the transformer casing, with less in-depth analysis of the material properties and structural optimization of the observation windows, and a lack of coupled optimization methods for combined loads. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to provide a method and related device for optimizing multi-physics coupling of a transparent observation window. The present invention considers the factors of multi-physics coupling and optimizes the structure of the transparent observation window in order to improve the explosion-proof performance and operational reliability of the transparent observation window.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A multiphysics coupling optimization method for a transparent observation window includes the following steps: Perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements; Perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements; Perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements. Perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements, until the thermal expansion stress analysis results meet the design requirements. This completes the multiphysics coupling optimization of the transparent observation window.

[0006] Preferably, when performing bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window, if the bolt preload stress analysis results do not meet the design requirements, the thickness of the transparent cover plate in the simulation geometric model is increased, and the bolt preload stress analysis of the simulation geometric model is re-performed until the bolt preload stress analysis results meet the design requirements.

[0007] Preferably, when performing liquid pressure stress analysis on a simulation geometric model whose bolt preload stress analysis results meet the design requirements, if the liquid pressure stress analysis results do not meet the design requirements, the thickness of the transparent cover plate in the simulation geometric model is increased, and the bolt preload stress analysis and liquid pressure stress analysis are performed on the simulation geometric model again in sequence until the liquid pressure stress analysis results meet the design requirements.

[0008] Preferably, when performing liquid expansion stress analysis on a simulation geometric model whose liquid pressure stress analysis results meet the design requirements, if the liquid expansion stress analysis results do not meet the design requirements, the thickness of the transparent cover plate in the simulation geometric model is increased, and the bolt preload stress analysis, liquid pressure stress analysis, and liquid expansion stress analysis are performed on the simulation geometric model again in sequence until the liquid expansion stress analysis results meet the design requirements.

[0009] Preferably, thermal expansion stress analysis is performed on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements. If the thermal expansion stress analysis results do not meet the design requirements, the thickness of the transparent cover plate in the simulation geometric model is increased, and the simulation geometric model is re-analyzed with bolt preload force, liquid pressure force, liquid expansion stress, and thermal expansion stress in sequence until the thermal expansion stress analysis results meet the design requirements.

[0010] Preferably, the design requirements are met when the strain of the cover plate in the simulation geometric model is not greater than the preset strain value and the stress is not greater than the preset stress value.

[0011] Preferably, the simulation geometric model includes a flange, a transparent cover plate, and a cover plate arranged in sequence. A sealing gasket is provided between the flange and the transparent cover plate, as well as between the transparent cover plate and the cover plate. The flange, the transparent cover plate, and the cover plate are connected by screws. The screws are located on the outer periphery of the sealing gaskets, and a gasket is provided between the screws and the cover plate.

[0012] This invention also provides a multiphysics coupling optimization system for a transparent viewing window, used to implement the multiphysics coupling optimization method for a transparent viewing window as described above, comprising: The first analysis module is used to perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements. The second analysis module is used to perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements. The third analysis module is used to perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements. The fourth analysis module is used to perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements, until the thermal expansion stress analysis results meet the design requirements.

[0013] The present invention also provides an electronic device, comprising: One or more processors; A memory on which one or more programs are stored; When the one or more programs are executed by the one or more processors, the one or more processors implement the transparent observation window multiphysics coupling optimization method of the present invention as described above.

[0014] The present invention also provides a storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the transparent observation window multiphysics coupling optimization method of the present invention as described above.

[0015] The present invention has the following beneficial effects: This invention presents a multi-physics field coupling optimization method for transparent observation windows, specifically addressing the problems in the background technology where traditional transformer transparent observation windows are prone to deformation, oil leakage, and even damage under combined loads. Furthermore, existing technologies lack corresponding coupling optimization methods and have insufficient structural optimization analysis of the observation windows. Specifically, this invention employs a progressive stress analysis design based on bolt preload, liquid pressure, liquid expansion stress, and thermal expansion stress. First, bolt preload analysis ensures the sealing performance of the observation window and the stability of the foundation structure, preventing sealing failure and bolt fatigue caused by improper preload from the outset. Then, based on the successful analysis results of the previous stage, subsequent load analyses are conducted sequentially, accurately locating stress concentration areas and weak points of the observation window under different individual and coupled loads, completely changing the traditional observation window... The current situation of observation windows relying on experience-based design and failing to fully consider the impact of composite loads is addressed by this progressive approach that focuses on the mechanical properties of the observation window itself. It constructs a complete multi-physics coupling optimization system, overcoming the shortcomings of existing technologies that emphasize the overall characteristics of the transformer casing while neglecting the local load adaptability of the observation window. This system can accurately simulate the stress-strain distribution of the observation window in actual high-temperature and high-pressure environments, providing precise simulation data support for structural parameter optimization. This significantly improves the structural strength, stability, deformation resistance, and leakage resistance of the observation window, enhances its explosion-proof performance, and ultimately provides technical assurance for the safe and stable operation of the transformer. It achieves the transformation from experience-based design to precise simulation optimization, effectively fulfilling the invention's objective of improving the explosion-proof performance and reliability of the observation window and ensuring the safe operation of the transformer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments are briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the simulation geometric model of the transparent observation window of the transformer in an embodiment of the present invention.

[0018] Figure 2 This is a flowchart of the multiphysics coupling optimization method for transparent observation windows in this embodiment of the invention.

[0019] Figure 3 This is a structural block diagram of the multiphysics coupling optimization system with a transparent observation window in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the electronic device in an embodiment of the present invention.

[0021] Figure 5 This is a strain simulation result diagram of the bolt preload force analysis in step 2 of embodiment 3 of the present invention (which does not meet the design requirements).

[0022] Figure 6 This is a stress simulation result diagram of the bolt preload force analysis in step 2 of embodiment 3 of the present invention (which does not meet the design requirements).

[0023] Figure 7 This is a strain simulation result diagram of the bolt preload force analysis in step 2 of embodiment 3 of the present invention (meets design requirements).

[0024] Figure 8 This is a stress simulation result diagram of the bolt preload force analysis performed in step 2 of embodiment 3 of the present invention (meets design requirements).

[0025] Figure 9 This is a strain simulation result diagram of thermal expansion stress analysis performed in step 5 of embodiment 3 of the present invention (meets design requirements).

[0026] Figure 10 This is a stress simulation result diagram (meets design requirements) during thermal expansion stress analysis in step 5 of embodiment 3 of the present invention.

[0027] In the diagram, 1-flange; 2-gasket; 3-cover plate; 4-transparent cover plate; 5-screw; 6-gasket. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] Example 1 This embodiment simplifies the transformer model, resulting in the following simplified model: Figure 1 The simulated geometric model of the transformer's transparent observation window shown includes a flange 1, a transparent cover plate 4, and a cover plate 3 arranged sequentially. The flange 1 is a structure on the transformer casing used to mount the transparent cover plate 4. Sealing gaskets 2 are provided between the flange 1 and the transparent cover plate 4, and between the transparent cover plate 4 and the cover plate 3. The flange 1, transparent cover plate 4, and cover plate 3 are connected by screws 5, with the screws 5 located on the outer periphery of the sealing gaskets 2. The flange 1 has threaded holes that mate with the screws 5. By tightening the screws 5, the flange 1, transparent cover plate 4, cover plate 3, and sealing gaskets 2 can be tightly fitted, thereby achieving a seal between the adjacent surfaces of the flange 1 and the transparent cover plate 4, and between the adjacent surfaces of the transparent cover plate 4 and the cover plate 3. Normally, a gasket 6 is placed between the head of the screw 5 and the cover plate 3 to reduce the pressure exerted by the screw 5 on the cover plate 3; therefore, a gasket 6 is provided in this embodiment.

[0030] Based on the above simulation geometric model, see Figure 2The multiphysics coupling optimization method for transparent observation windows in this embodiment includes the following process: Bolt preload stress analysis: Perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements; Liquid pressure stress analysis: Perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements; Liquid expansion stress analysis: Perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements; Thermal expansion stress analysis: Perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements until the thermal expansion stress analysis results meet the design requirements. This completes the multiphysics coupling optimization of the transparent observation window.

[0031] Specifically, in some embodiments of the present invention, the specific processes for bolt preload stress analysis, liquid pressure stress analysis, liquid expansion stress analysis, and thermal expansion stress analysis can be performed as follows: When performing bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window, if the bolt preload stress analysis results do not meet the design requirements, increase the thickness of the transparent cover plate 4 in the simulation geometric model and repeat the bolt preload stress analysis until the bolt preload stress analysis results meet the design requirements.

[0032] When performing liquid pressure stress analysis on a simulation geometric model whose bolt preload stress analysis results meet the design requirements, if the liquid pressure stress analysis results do not meet the design requirements, increase the thickness of the transparent cover plate 4 in the simulation geometric model, and repeat the bolt preload stress analysis and liquid pressure stress analysis sequentially until the liquid pressure stress analysis results meet the design requirements.

[0033] When performing liquid expansion stress analysis on a simulation geometric model whose liquid pressure stress analysis results meet the design requirements, if the liquid expansion stress analysis results do not meet the design requirements, increase the thickness of the transparent cover plate 4 in the simulation geometric model, and repeat the bolt preload stress analysis, liquid pressure stress analysis, and liquid expansion stress analysis in sequence until the liquid expansion stress analysis results meet the design requirements.

[0034] When performing thermal expansion stress analysis on a simulation geometric model whose liquid expansion stress analysis results meet the design requirements, if the thermal expansion stress analysis results do not meet the design requirements, the thickness of the transparent cover plate 4 in the simulation geometric model is increased, and the bolt preload force analysis, liquid pressure force analysis, liquid expansion stress analysis, and thermal expansion stress analysis are repeated in sequence until the thermal expansion stress analysis results meet the design requirements.

[0035] The core purpose of the aforementioned progressive stress analysis and corresponding adjustment verification process is to achieve precise adaptation and optimization of the transparent observation window under composite loads, while ensuring the reliability and effectiveness of the optimization results. The specific benefits are threefold: First, it ensures basic sealing and structural stability. Bolt preload is a core prerequisite for the sealing of the observation window. Prioritizing analysis and adjustment of this aspect can prevent problems such as seal failure and bolt fatigue caused by improper preload from the source, providing a qualified basic structure for subsequent load analysis. Second, it ensures the optimization adaptability under composite loads. Liquid pressure, liquid expansion stress, and thermal expansion stress all need to be based on the successful completion of the previous analysis. If they are not met, all previous analyses must be repeated. This is because adjusting the thickness of the transparent cover plate will simultaneously affect the stress distribution under each load. Repeated verification can prevent a single adjustment from damaging the previously verified basic performance, ensuring that each adjustment takes into account the adaptability of all previous load conditions. Ultimately, it achieves precise matching between the observation window structure and the full load coupling conditions, while making the optimization process clear, traceable, and improving optimization efficiency and result reliability.

[0036] In some embodiments of the present invention, the following criteria can be used to determine whether the design requirements are met: If the strain (i.e., maximum strain) of the cover plate in the simulation geometric model is not greater than the preset strain value and the stress (i.e., maximum stress) is not greater than the preset stress value, then the design requirements are met; otherwise, the design needs to be redone.

[0037] In some embodiments of the present invention, the specific processes of bolt preload stress analysis, liquid pressure stress analysis, liquid expansion stress analysis, and thermal expansion stress analysis can be performed in mechanical simulation software.

[0038] Example 2 by Figure 1 The simulated geometric model shown is the object of analysis, which is analyzed in mechanical simulation software. The multiphysics coupling optimization method with a transparent observation window in this embodiment includes the following process: Step 1: Determine the thickness D of the transparent cover plate 4 in the variable simulation geometry model: First, set D=1mm and construct the simulation geometry model with D=1mm. Step 2: Perform the first analysis on the simulation geometric model established in Step 1: bolt preload force analysis. If the bolt preload force analysis results meet the design requirements, proceed to Step 3 for the second analysis. Step 3: Perform the second analysis: liquid pressure stress analysis. If the liquid pressure stress analysis results do not meet the design requirements, increase the thickness D by 1mm, then rebuild the simulation geometric model and return to Step 2 to perform the analysis again. When the liquid pressure stress analysis results meet the design requirements, proceed to Step 4 to perform the third analysis. Step 4: Perform the third analysis: liquid expansion stress analysis. If the liquid expansion stress analysis results do not meet the design requirements, increase the thickness D by 1mm, then rebuild the simulation geometric model and go back to step 2 to perform the analysis again. When the liquid expansion stress analysis results meet the design requirements, go to step 5 to perform the fourth analysis. Step 5: Perform the fourth analysis: thermal expansion stress analysis. If the thermal expansion stress analysis results do not meet the design requirements, increase the thickness D by 1mm, then rebuild the simulation geometric model and return to Step 2 for re-analysis. When the thermal expansion stress analysis results meet the design requirements, complete the multiphysics coupling optimization process of the transparent observation window. If the thermal expansion stress analysis results do not meet the design requirements, increase the thickness D by 1mm, then rebuild the simulation geometric model and return to Step 2 for re-analysis, until all stress analysis results meet the design requirements.

[0039] Example 3 The design requirements for the transparent cover plate of the transformer observation window in this embodiment must simultaneously meet the following conditions: the strain ε of the cover plate 3 is not greater than 2mm and the stress σ is not greater than 250MPa. The specific steps in this embodiment are the same as in embodiment 2, specifically including: Step 1: After constructing the simulation ensemble model, first set the thickness D of the transparent cover plate 4 to 1mm; Step 2: Perform the first analysis: bolt preload stress analysis. Simulation results show ε = 2.96 > 2mm and σ = 256MPa. The simulation results are as follows: Figure 5 and Figure 6 As shown, the design requirements are not met. Increasing the thickness D to 2mm, simulation calculations yielded ε=1.584<2mm and σ=156<250MPa. The simulation results are as follows: Figure 7 and Figure 8 As shown, the bolt preload force analysis results meet the design requirements at this point, so proceed to step 3 for the second analysis. Step 3: Perform the second item: liquid pressure stress analysis. When D=2mm, the simulation calculation shows that ε=0.51<2mm and σ=2.59<250MPa. At this time, the simulation calculation results simultaneously meet the stress and strain requirements, which means that the liquid pressure stress analysis results meet the design requirements. Proceed to step 4 for the third item of analysis. Step 4: Perform the third step: liquid expansion stress analysis. When D=2mm, the simulation calculation shows ε=0.65<2mm, σ=284>250MPa. At this time, the liquid expansion stress analysis results do not meet the design requirements. Then, increase the thickness D to 3mm, reconstruct the simulation geometric model, and return to Step 2 for re-analysis. Specifically, when performing bolt preload stress analysis, the simulation calculation shows ε=1.65<2mm, σ=216<250MPa, and the bolt preload stress analysis results meet the design requirements. When performing liquid pressure stress analysis, the simulation calculation shows ε=0.584<2mm, σ=12.5<250MPa, and the liquid pressure stress analysis results meet the design requirements. When performing liquid expansion stress analysis, the simulation calculation shows ε=2.98>2mm, σ=230<250MPa. At this time, the first two analyses (i.e., bolt preload stress analysis) are no longer satisfactory. The results of the bolt preload stress analysis and the liquid pressure stress analysis both meet the design requirements, but the results of the liquid expansion stress analysis still do not meet the design requirements. The thickness D is then increased further, until D = 6 mm. When performing the bolt preload stress analysis, the simulation results show ε = 1.84 < 2 mm and σ = 240 < 250 MPa, which meets the design requirements. When performing the liquid pressure stress analysis, the simulation results show ε = 0.6 < 2 mm and σ = 17 < 250 MPa, which also meets the design requirements. When performing the liquid expansion stress analysis, the simulation results show ε = 1.95 < 2 mm and σ = 241 < 250 MPa, which also meets the design requirements. At this point, the stress and strain of all three analysis results (bolt preload stress analysis, liquid pressure stress analysis, and liquid expansion stress analysis) meet the design requirements, and the process proceeds to step 5 for the fourth analysis. Step 5: Perform the fourth step: thermal expansion stress analysis. When D=6mm, the simulation calculation shows ε=4.14>2mm and σ=290>250MPa. Both ε and σ do not meet the design requirements. Continue to increase D... until D=10mm. When performing bolt preload stress analysis, the simulation calculation shows ε=1.89<2mm and σ=235<250MPa. The bolt preload stress analysis results meet the design requirements. When performing liquid pressure stress analysis, the simulation calculation shows ε=0. For the liquid pressure stress analysis, ε = 1.82 < 2mm and σ = 21 < 250MPa, the results meet the design requirements. For the liquid expansion stress analysis, simulation results show ε = 1.86 < 2mm and σ = 243 < 250MPa, also meeting the design requirements. For the thermal expansion stress analysis, simulation results show ε = 0.65 < 2mm and σ = 216 < 250MPa, meeting the design requirements. In this case, all four analysis results meet the design requirements, as shown in the simulation results. Figure 9 and Figure 10As shown, the thickness D of the transparent cover plate of the transformer observation window was finally determined to be 10mm.

[0040] Furthermore, embodiments of the present invention also provide a multiphysics coupling optimization system for a transparent observation window, used to implement the multiphysics coupling optimization method for a transparent observation window as described above, such as... Figure 3 As shown, the system includes: The first analysis module is used to perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements. The second analysis module is used to perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements. The third analysis module is used to perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements. The fourth analysis module is used to perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements, until the thermal expansion stress analysis results meet the design requirements.

[0041] The embodiments of the present invention also provide corresponding electronic devices and computer-readable storage media for implementing the solutions provided in the embodiments of the present invention.

[0042] Among them, such as Figure 4 As shown, the electronic device includes a memory and one or more processors. The memory is used to store one or more programs, and the one or more processors are used to execute the one or more programs to enable the electronic device to perform the transparent viewing window multiphysics coupling optimization method according to any embodiment of this application.

[0043] The storage medium stores a computer program, which, when executed by a processor, implements the multiphysics coupling optimization method for transparent viewing windows according to any embodiment of this application.

[0044] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A multiphysics coupling optimization method for a transparent observation window, characterized in that, The process includes the following: Perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements; Perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements; Perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements. Perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements, until the thermal expansion stress analysis results meet the design requirements.

2. The method for multiphysics coupling optimization of a transparent observation window according to claim 1, characterized in that, When performing bolt preload stress analysis on the established transformer transparent observation window simulation geometric model, if the bolt preload stress analysis results do not meet the design requirements, the thickness of the transparent cover plate (4) in the simulation geometric model is increased, and the bolt preload stress analysis is repeated until the bolt preload stress analysis results meet the design requirements.

3. The multiphysics coupling optimization method for a transparent observation window according to claim 1, characterized in that, When performing liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, if the liquid pressure stress analysis results do not meet the design requirements, increase the thickness of the transparent cover plate (4) in the simulation geometric model, and re-perform bolt preload stress analysis and liquid pressure stress analysis on the simulation geometric model in sequence until the liquid pressure stress analysis results meet the design requirements.

4. The method for multiphysics coupling optimization of a transparent observation window according to claim 1, characterized in that, When performing liquid expansion stress analysis on a simulation geometric model whose liquid pressure stress analysis results meet the design requirements, if the liquid expansion stress analysis results do not meet the design requirements, increase the thickness of the transparent cover plate (4) in the simulation geometric model, and re-perform bolt preload stress analysis, liquid pressure stress analysis and liquid expansion stress analysis on the simulation geometric model in sequence until the liquid expansion stress analysis results meet the design requirements.

5. The multiphysics coupling optimization method for a transparent observation window according to claim 1, characterized in that, For simulation geometric models whose liquid expansion stress analysis results meet the design requirements, thermal expansion stress analysis is performed. If the thermal expansion stress analysis results do not meet the design requirements, the thickness of the transparent cover plate (4) in the simulation geometric model is increased, and the bolt preload force analysis, liquid pressure force analysis, liquid expansion stress analysis and thermal expansion stress analysis are performed on the simulation geometric model in sequence until the thermal expansion stress analysis results meet the design requirements.

6. A method for optimizing multiphysics coupling of a transparent observation window according to any one of claims 1-5, characterized in that, The design requirements are met when the strain of the cover plate (3) in the simulation geometric model is not greater than the preset strain value and the stress is not greater than the preset stress value.

7. A method for optimizing multiphysics coupling of a transparent observation window according to any one of claims 1-5, characterized in that, The simulation geometric model includes a flange (1), a transparent cover plate (4) and a cover plate (3) arranged in sequence. A sealing gasket (2) is provided between the flange (1) and the transparent cover plate (4) and between the transparent cover plate (4) and the cover plate (3). The flange (1), the transparent cover plate (4) and the cover plate (3) are connected by screws (5). The screws (5) are located on the outer periphery of the sealing gasket (2). A gasket (6) is provided between the screws (5) and the cover plate (3).

8. A multiphysics coupling optimization system with a transparent observation window, characterized in that, include: The first analysis module is used to perform bolt preload stress analysis on the established simulation geometric model of the transformer transparent observation window until the bolt preload stress analysis results meet the design requirements. The second analysis module is used to perform liquid pressure stress analysis on the simulation geometric model whose bolt preload stress analysis results meet the design requirements, until the liquid pressure stress analysis results meet the design requirements. The third analysis module is used to perform liquid expansion stress analysis on the simulation geometric model whose liquid pressure stress analysis results meet the design requirements, until the liquid expansion stress analysis results meet the design requirements. The fourth analysis module is used to perform thermal expansion stress analysis on the simulation geometric model whose liquid expansion stress analysis results meet the design requirements, until the thermal expansion stress analysis results meet the design requirements.

9. An electronic device, characterized in that, include: One or more processors; A memory on which one or more programs are stored; When the one or more programs are executed by the one or more processors, the one or more processors implement the transparent viewing window multiphysics coupling optimization method as described in any one of claims 1-7.

10. A storage medium, characterized in that, It stores a computer program, wherein the computer program, when executed by a processor, implements the multiphysics coupling optimization method for transparent viewing windows as described in any one of claims 1-7.

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