Structural mechanical strength verification method, device, computer equipment and storage medium

Abstract

The present application relates to a method, device, computer equipment, storage medium and computer program product for verifying the mechanical strength of a structure. The method comprises: obtaining first stress state information of a target structure in an electromagnetic field and a structural strength finite element model corresponding to the target structure; determining the electrodynamic acceleration of the target structure in the electromagnetic field based on the first stress state information; generating second stress state information of the structural strength finite element model based on the electrodynamic acceleration and the structural model quality of the structural strength finite element model; and generating verification results of the structural mechanical strength based on the stress value of the structural strength finite element model and the material strength value corresponding to the target structure. The method realizes load transfer through electrodynamic acceleration, overcoming the errors caused by model changes in electromagnetic analysis and structural strength analysis; the load conditions of the electromagnetic force can be accurately transferred to the structural strength model to achieve accurate verification of the mechanical strength under electrodynamic load.

Description

Technical Field

[0001] The present application relates to the field of electrical engineering technology, and in particular to a method, device, computer equipment, storage medium and computer program product for verifying the mechanical strength of a structure. Background Art

[0002] In the field of electrical engineering, with increasing demands for computational accuracy and improved computing power, particularly in electromagnetic-structural coupling, structural strength and deformation are being examined at increasingly detailed scales, often requiring millimeter-level accuracy. However, due to the specific nature of electromagnetic field calculations, structural models often require simplification.

[0003] However, when traditional technical solutions are used to verify the mechanical strength of the model, the verification results of the mechanical strength of the structure are inaccurate due to the serious simplification of the physical model during the electromagnetic calculation process. Summary of the Invention

[0004] Based on this, it is necessary to provide a more accurate structural mechanical strength verification method, device, computer equipment, computer-readable storage medium and computer program product to address the above technical problems.

[0005] In a first aspect, the present application provides a method for verifying the mechanical strength of a structure. The method comprises:

[0006] Acquiring first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure;

[0007] determining an electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information;

[0008] generating second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model;

[0009] A verification result of the structural mechanical strength is generated according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0010] In one embodiment, the method for obtaining the first force state information includes the following steps:

[0011] Acquiring an electromagnetic field structure model of the target structure in the electromagnetic field;

[0012] The first force state information is generated according to the force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field.

[0013] In one embodiment, generating the first force state information according to the force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field includes:

[0014] Acquiring current path information in the electromagnetic field structure model;

[0015] compressing the electromagnetic field structure model while retaining the current path information;

[0016] The first force state information is generated based on the force state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field.

[0017] In one embodiment, generating the first force state information based on the force state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field includes:

[0018] Obtaining Ampere force data of each finite element unit in the electromagnetic field structure model in the electromagnetic field;

[0019] combining Ampere force data corresponding to a plurality of finite element units to generate electrodynamic force data of the electromagnetic field structure model;

[0020] First force state information of the electromagnetic field structure model is generated according to the electrodynamic data.

[0021] In one embodiment, generating the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information includes:

[0022] Obtain the quality of the electromagnetic field structure model;

[0023] The electrodynamic acceleration of the target structure in the electromagnetic field is calculated based on the first force state information and the mass of the electromagnetic field structure model.

[0024] In one embodiment, before generating the second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model, the method further includes:

[0025] Obtaining the material density and model volume of the structural strength finite element model;

[0026] The mass of the structural model is obtained according to the material density and the model volume.

[0027] In a second aspect, the present application also provides a device for verifying the mechanical strength of a structure. The device comprises:

[0028] An information acquisition module, configured to acquire first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure;

[0029] an acceleration calculation module, configured to determine the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information;

[0030] a force analysis module, configured to generate second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model;

[0031] The strength verification module is used to generate a verification result of the structural mechanical strength according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0032] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are performed:

[0033] Acquiring first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure;

[0034] determining an electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information;

[0035] generating second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model;

[0036] A verification result of the structural mechanical strength is generated according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0037] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the following steps:

[0038] Acquiring first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure;

[0039] determining an electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information;

[0040] generating second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model;

[0041] A verification result of the structural mechanical strength is generated according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0042] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the following steps:

[0043] Acquiring first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure;

[0044] determining an electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information;

[0045] generating second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model;

[0046] A verification result of the structural mechanical strength is generated according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0047] The technical solution of the present application provides a method, device, computer equipment, storage medium and computer program product for verifying the mechanical strength of a structure. First, based on the first stress state information of the target structure in the electromagnetic field, the electrodynamic acceleration of the target structure in the electromagnetic field is generated; then, by introducing the electrodynamic acceleration as a bridge connecting the electromagnetic analysis and the structural strength analysis, load transfer between different models in the electromagnetic-structural coupling field becomes possible. On the basis of the obtained electrodynamic acceleration, based on the structural strength finite element model corresponding to the target structure, a structural dynamics analysis is performed on the target structure to obtain second stress state information that can be applied to the structural strength analysis calculation; further, based on the stress value of the structural strength finite element model under the second stress state and the material strength value corresponding to the target structure, a verification result of the mechanical strength of the structure is formed. The solution completes the load transfer in the electromagnetic-structural coupling field through electrodynamic acceleration, effectively overcoming the errors caused by model switching during the electromagnetic analysis process and the structural strength analysis process; the electromagnetic force load conditions can be accurately transferred to the structural strength finite element model to achieve accurate verification of the mechanical strength under electrodynamic load. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A diagram showing an application environment of a structural mechanical strength verification method according to an embodiment;

[0049] Figure 2Schematic diagram of a flow chart of a method for verifying the mechanical strength of a structure in one embodiment;

[0050] Figure 3 A schematic flow chart of the model simplification sub-steps in one embodiment;

[0051] Figure 4 A schematic flow chart of a method for verifying the mechanical strength of a structure in another embodiment;

[0052] Figure 5 1 is a structural block diagram of a device for verifying the mechanical strength of a structure in one embodiment;

[0053] Figure 6 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] Traditional technical solutions severely simplify the physical model in the electromagnetic-structural coupling field, resulting in significant deviations between the calculated electromagnetic forces and electrodynamic forces, making them unsuitable for structural strength calculations. Therefore, achieving equivalence between electromagnetic force loads in the electromagnetic and structural calculation models is a key challenge in complex sequential electromagnetic-structural field coupling calculations.

[0056] In response to the difficulties mentioned above, the technical solution of this application introduces average electrodynamic acceleration as a bridge connecting electromagnetic calculation and structural calculation to obtain accurate results of mechanical strength verification of physical models under electrodynamic loads.

[0057] For example, the structural mechanical strength verification method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. Among them, the simulation terminal 102 can communicate with the server through any network communication method; the simulation terminal 102 is provided with an interactive operation interface 103, through which various simulation models and strength verification results can be visually output, and the interactive operation page 103 can also be used to receive user interactive operation instructions. On the server side, a data storage system is provided, which can store data that the server needs to process. The data storage system can be integrated on the server, or placed on the cloud or other network servers. Figure 1In the illustrated application environment, the process for mechanical strength verification of a gas-insulated metal-enclosed switchgear (GIS) device is as follows: A user issues a strength verification command for GIS device components through the interactive operation interface 103. In response to this command, the simulation terminal 102 performs a dynamic and thermal stability combined simulation of the GIS device components. First, the simulation terminal 102 collects various status data of the GIS device components in real time. Specifically, in this embodiment, the collected status data primarily includes the resultant electrodynamic forces (or electromagnetic forces) experienced by the GIS device components in an electromagnetic field. Alternatively, in this embodiment, the simulation terminal 102 can directly retrieve the status data of the GIS device components from a data storage system. After the simulation terminal 102 loads the status data of the GIS device components, it simulates the electromagnetic field structure of the components to obtain a finite element model of the electromagnetic field structure. Furthermore, during the electromagnetic field structure simulation, a force analysis is performed on the finite element model based on the aforementioned electrodynamic resultant force, and the electrodynamic acceleration of the finite element model (representing the component structure of the GIS device) in the electromagnetic field is further determined. The simulation terminal 102 then constructs a structural strength finite element model containing the components of the GIS device. After determining the structural model mass and electrodynamic acceleration of the structural strength finite element model, the simulation terminal 102 calculates the electrodynamic force that can be used in the structural strength calculation process, thereby determining the stress state of the structural strength finite element model. Finally, the electrodynamic force that can be used in the structural strength calculation process is input into the structural strength calculation finite element model for solution, thereby verifying the mechanical strength under electrodynamic load. Specifically, mechanical strength verification typically utilizes finite element analysis methods to quickly and efficiently calculate structural stress and deformation. Finally, the stress values ​​of the structural strength finite element model are compared with the material strength values ​​corresponding to the target structure to obtain the mechanical strength verification results. Finally, the simulation terminal 102 can visualize the obtained mechanical strength verification results through the interactive operation interface 103; at the same time, the simulation terminal 102 can also upload the mechanical strength verification results to the server and store them in the data storage system.

[0058] It should be noted that in other possible application scenarios, the terminal does not have sufficient data processing capabilities to perform model simulation or perform large-scale data processing. In this case, the terminal can upload the component status data (for example, stress status information, etc.) collected in real time from the GIS equipment to the server. The server will execute the structural mechanical strength verification method and feed back the structural mechanical strength verification results to the terminal for visual output.

[0059] In addition, Figure 1In the application environment shown, the simulation terminal 102 can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and other portable wearable devices. In addition, the server can be implemented as an independent server or a server cluster consisting of multiple servers.

[0060] In one embodiment, Figure 2 As shown, a structural mechanical strength verification method is provided, which can be applied to Figure 1 The simulation terminal 102 in the embodiment; or in the case where the data processing capability of the terminal is low, it can also be executed by the server. The simulation terminal 102 or the server executes the structural mechanical strength verification method, which includes the following steps:

[0061] Step 202: Acquire first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure.

[0062] The target structure refers to a device or apparatus requiring mechanical strength verification. Specifically, in an embodiment, the target structure may refer to the various component structures included in a gas-insulated metal-enclosed switchgear (GIS). In this embodiment, the first stress state characterizes the electromagnetic force or electrodynamic force applied to the target structure in an electromagnetic field. In this embodiment, this can be accomplished by constructing a model of the target structure in an electromagnetic field and solving the model to determine the electromagnetic force applied to the target structure in the electromagnetic field, thereby determining the stress state information of the target structure in the electromagnetic field. The structural strength finite element model in this embodiment is a finite element (simulation) model constructed for structural strength calculation of the target structure. This finite element model is a model of the target structure obtained by modeling the target structure through finite element analysis. More specifically, the finite element model in this embodiment is a set of elements connected only at nodes, transmitting forces only at nodes, and constrained only at nodes.

[0063] For example, in an implementation scenario where a simulation terminal is used to accurately verify the mechanical strength of components in a GIS device under electrodynamic loads, a command for mechanical strength verification is first received through the interactive interface of the simulation device. In response to this command, the simulation terminal retrieves status information of each component in the GIS device from a server in real time based on the GIS device information carried in the command. Specifically, in one embodiment, the terminal device can monitor the status information of each component in the device in real time using sensor acquisition devices pre-installed in the GIS device, or it can obtain the electrical and magnetic characteristics of the GIS device and its components in an electromagnetic field by exchanging data with a server. These electrical and magnetic characteristics include, but are not limited to, the conductivity, magnetic permeability, and dielectric constant of the device's structural materials. The terminal device can further determine the distribution of the electromagnetic field; specifically, the distribution of the electromagnetic field can be determined through numerical simulation or real-time measurement. After determining the electromagnetic characteristics and electromagnetic field distribution of the components in the GIS device, the simulation device can calculate the forces acting on the components in the electromagnetic field based on electromagnetic field formulas, thereby generating first force state information for specific (or preselected) components in the GIS device. On the other hand, in order to be able to check the structural strength of the components in the GIS device, the embodiment also needs to construct a structural strength finite element model of the components in the GIS device, so that after determining the electric force in the structural strength calculation, it can be solved through the structural strength calculation finite element model. Specifically in the embodiment, it is necessary to construct an initial model of the structural information of the components in the GIS device. The initial model needs to have important geometric features and details of the components in the GIS device. This initial model is then meshed; and based on the structural material characteristics of the components in the GIS device, the elastic modulus, Poisson's ratio, density and other properties of the meshed model are defined. Furthermore, boundary conditions and loads are applied to the meshed model to eventually form a structural finite element model of the components in the GIS device.

[0064] It should be noted that in this embodiment, an electromagnetic field structure finite element model can also be constructed to describe the stress state of components in the GIS equipment in the electromagnetic field through model simulation. Correspondingly, the process of constructing the electromagnetic field structure finite element model also includes processing steps such as defining materials, setting the external environment, setting boundary conditions and excitation sources, and meshing.

[0065] Step 204: Determine the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information.

[0066] In the embodiment, the electromotive force is a magnetic field around a conductor through which current flows, and the magnetic field acts on ferromagnetic materials within its range to cause them to be subjected to force; the electromotive force acceleration is the acceleration generated by the action of the electromotive force.

[0067] For example, in an implementation scenario where the mechanical strength of components in a GIS device under electrodynamic loads is accurately calibrated through a simulation terminal, after the force state information of the components in the GIS device in the electromagnetic field is determined in step 202, the simulation terminal calculates the average electrodynamic acceleration based on the resultant electrodynamic force borne by the components in the GIS device in the electromagnetic field described by the force state information and the structural mass of the components in the GIS device.

[0068] Step 206 : generating second stress state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model.

[0069] In this embodiment, the structural model quality of the structural strength finite element model refers to the model quality of the structural strength finite element model constructed by the simulation terminal based on the structural information of the components in the GIS device. Furthermore, the second force state information in this embodiment is used to represent the state of the structural strength finite element model corresponding to the component in the GIS device when subjected to electromagnetic force or electrodynamic force.

[0070] Specifically, in the embodiment, when constructing an electromagnetic field structural finite element model to analyze the forces acting on components within the GIS device and obtain the net electrodynamic forces acting on the components within the electromagnetic field calculation, since electromagnetic field calculations often employ simplified models, the mesh of the structural finite element model is simplified, resulting in a significant deviation between the calculated electromagnetic forces and the actual forces. More specifically, the electromagnetic field structural finite element model undergoes significant simplifications, while the structural strength finite element model undergoes minimal simplifications, retaining the detailed physical model. Therefore, due to these simplifications, the structural strength finite element model exhibits significant differences in volume and mass compared to the electromagnetic field structural finite element model, which can be specifically reflected in the differences in model volume and mass. Therefore, in the embodiment, the average electrodynamic acceleration is calculated using the aforementioned steps. By introducing the average electrodynamic acceleration, load transfer between finite element models of varying levels of detail within the electromagnetic-structural coupling field is possible.

[0071] In one embodiment, before generating the second stress state information of the structural strength finite element model based on the electrodynamic acceleration and the structural model quality of the structural strength finite element model, it is necessary to determine the quality of the structural model. Furthermore, the method in the embodiment includes the following steps:

[0072] Step 1: Obtain the material density and model volume of the structural strength finite element model.

[0073] Step 2: Obtain the mass of the structural model based on the material density and model volume.

[0074] For example, in the implementation scenario of accurately verifying the mechanical strength under electrodynamic load, the simulation terminal obtains the electrodynamic force borne by the GIS equipment components in the electromagnetic field calculation based on the simplified electromagnetic field structure finite element model, and further calculates the average electric acceleration; based on the component structure volume and material density in the structural strength finite element model pre-built by the simulation terminal, the mass of the component structure in the structural strength finite element model is calculated, and combined with the average electric acceleration, the electrodynamic value that can be used for structural strength verification is calculated. The specific calculation formula is as follows:

[0075]

[0076]

[0077] in, The structural mass of components in structural strength calculations; It is the structural volume of components in structural strength calculation; is the material density; is the electric force used for structural strength verification. It should be noted that in the process of calculating the electric force value used for structural strength verification, according to the D'Alembert principle, the direction of the inertial force is opposite to the direction of acceleration. In addition, in the calculation process, a more detailed structural strength finite element model parameter is introduced. , making The stress condition of the component structure that is close to the real scene is the second stress state information.

[0078] Step 208 : generating a verification result of the mechanical strength of the structure according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0079] In the embodiments, stress values ​​are used to characterize the stress magnitude of each component of the target structure, determined through stress calculation based on force analysis. Material strength refers to the material's ability to resist damage under external forces. When a material is subjected to an external force, stress is generated within it. As the external force increases, the stress increases accordingly, until the bonding force between particles within the material is insufficient to resist the external force, potentially leading to material failure.

[0080] Specifically, in the embodiment, the simulation terminal can input the electric force value calculated in the above steps into the structural strength calculation finite element model for solution, thereby realizing the mechanical strength verification under the electric force load. Introduced into the finite element model for structural strength calculation, due to The forces acting on the structure more closely resemble those of a real structure, resulting in more accurate mechanical strength verification under electrodynamic loads. More specifically, the simulation terminal in the embodiment performs (electrodynamic) force analysis on component structures within the GIS equipment, determines the stress magnitude of the component structure through stress calculation, and rapidly calculates the structural stress and deformation based on the finite element model. Furthermore, the calculated stress value is compared with the material strength value to determine whether the component structure meets the strength requirements, thereby generating a verification result for the component's mechanical strength. The structural mechanical strength verification method provided in this application first generates an electrodynamic acceleration of the target structure in an electromagnetic field based on information about a first stress state of the target structure in an electromagnetic field. Then, by introducing the electrodynamic acceleration as a bridge between electromagnetic analysis and structural strength analysis, load transfer between different models in the electromagnetic-structural coupling field is enabled. Based on the obtained electrodynamic acceleration, a structural dynamics analysis is performed on the target structure based on its corresponding structural strength finite element model to obtain information about a second stress state that can be applied to the structural strength analysis calculation. Furthermore, the structural mechanical strength verification result is generated based on the stress value of the structural strength finite element model under the second stress state and the material strength value of the target structure. The method completes the load transfer in the electromagnetic-structural coupling field through electrodynamic acceleration, effectively overcoming the errors caused by model switching between the electromagnetic analysis process and the structural strength analysis process; the electromagnetic force load conditions can be accurately transferred to the structural strength finite element model to achieve accurate verification of the mechanical strength under electrodynamic load.

[0081] In one embodiment, a method for obtaining the first force state information may include the following steps:

[0082] Step 1: Obtain the electromagnetic field structure model of the target structure in the electromagnetic field.

[0083] In an embodiment, the electromagnetic field structure model is a finite element model formed by modeling a target structure in the electromagnetic field using a finite element analysis method.

[0084] Specifically, in the embodiment, the stress conditions of various components in the GIS device in the electromagnetic field can be analyzed by constructing an electromagnetic field structural finite element model. To this end, the simulation terminal first needs to construct a structural finite element model of the GIS device in the electromagnetic field. Similar to constructing a structural strength finite element model, during the modeling process, it is first necessary to perform preliminary modeling based on the structural information of the GIS device. During the modeling process, the geometric body representing the GIS device is subdivided into several units, and the material properties of each unit are defined, such as conductivity, magnetic permeability, and dielectric constant. Furthermore, the simulation terminal needs to calculate the electromagnetic field and add boundary conditions and loads to the finite element model. The addition of boundary conditions and loads needs to take into account actual application scenarios, such as current, voltage, magnetic field strength, etc. When the convergence conditions are met, the corresponding electromagnetic field structural model of the GIS device is obtained.

[0085] Step 2: Generate first stress state information based on stress state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field.

[0086] Specifically, in the embodiment, the electromagnetic field structure model constructed in the previous step is a finite element model. Based on the characteristics of finite element models, any component or structure in the corresponding model of the GIS device is composed of a number of units (e.g., tetrahedrons or hexahedrons, etc.). Therefore, in the embodiment, when a specific component structure in the GIS device is required, it is first necessary to determine all units included in the specific component structure in the electromagnetic field structure (finite element) model, and simultaneously obtain the force conditions of each unit. The force conditions of all units are integrated to ultimately form the resultant force borne by the specific component structure in the GIS device, that is, to form the first force state information of the component structure. In the embodiment, the force state information of the target structure is determined through finite element analysis, which can quickly and relatively accurately perform force analysis on the target structure.

[0087] like Figure 3 As shown, in order to further improve the efficiency of the force analysis of the target structure in the electromagnetic field, in one embodiment, generating first force state information according to the force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field includes the following steps:

[0088] Step 302: Acquire current path information in the electromagnetic field structure model.

[0089] Step 304 : compressing the electromagnetic field structure model while retaining the current path information.

[0090] Step 306 : generating first stress state information based on the stress state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field.

[0091] Specifically, in the embodiment, the process of simplifying and compressing the electromagnetic field structure model focuses on deleting or compressing parts that are not relevant to the current path. For example, in the electromagnetic field structure model of the GIS equipment in the embodiment, insulators, mechanism boxes, screws, and housings that do not serve as current loops can be simplified by directly removing them. Furthermore, small gaps (e.g., threaded holes) in the electromagnetic field structure model are also deleted. While ensuring the integrity of the current path information and maintaining significant external features of the parts (e.g., connection paths and current flow lengths), fillets and chamfers are removed from all model components. Spring contact fingers are removed to ensure a seamless fit between the moving and static contacts. Design engineers identify locations that do not require attention and directly replace actual parts with straight conductors of equal diameter to ensure a more intuitive and clear representation of the current path information. After the aforementioned simplification is completed, the stress conditions of specific component structures in the model are analyzed using finite element analysis based on the fully preserved current path information and the electromagnetic field distribution to obtain first stress state information. In the embodiment, the electromagnetic field structure model is reasonably simplified, and only the current path information of the electrodynamic force analysis in the electromagnetic field is retained, so that the amount of data involved in the model's calculation and processing process is effectively streamlined, thereby improving the efficiency of the model's force state calculation and processing process.

[0092] In one embodiment, the method generates first stress state information based on stress state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field, including the following steps:

[0093] Step 1: Obtain the Ampere force data of each finite element unit in the electromagnetic field structure model in the electromagnetic field.

[0094] Step 2: Combine the Ampere force data corresponding to multiple finite element units to generate electrodynamic force data of the electromagnetic field structure model.

[0095] Step three: generating first force state information of the electromagnetic field structure model according to the electrodynamic data.

[0096] In the embodiments, the Ampere force refers to the force exerted on a current-carrying conductor in a magnetic field. Specifically, in the aforementioned steps, during the construction of the electromagnetic field structure model, the electromagnetic field structure model corresponding to the GIS device is partitioned and discretized using a grid-based finite element method. Furthermore, after the grid-based discretization of the electromagnetic field structure model is completed, an alternating current excitation is applied to the model. According to Maxwell's equations, the varying current generates a varying magnetic field, further determining the magnetic field distribution within the model. Furthermore, based on the Ampere force law, a current-carrying conductor in a magnetic field will be subjected to the Ampere force. Each grid cell is subjected to this force. Based on the principles of finite element analysis, the Ampere forces exerted on multiple grid cells are integrated to obtain the resultant electrodynamic force of the electromagnetic structure finite element model. In the embodiments, when GIS equipment contains highly complex components, such as those with uneven material properties, arbitrary boundary conditions, and complex geometric shapes, finite element analysis is employed to integrate the Ampere forces exerted on each finite element cell to ultimately determine the resultant electrodynamic force exerted on the complex structure. This allows for flexible processing and solution, improving computational efficiency.

[0097] In one embodiment, the process of generating the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information in the method may include the following steps:

[0098] Step 1: Obtain the quality of the electromagnetic field structure model.

[0099] Step 2: Calculate the electrodynamic acceleration of the target structure in the electromagnetic field based on the first force state information and the mass of the electromagnetic field structure model.

[0100] In the embodiment, the quality of the electromagnetic field structure model is used to characterize the quality of the model obtained by modeling through simulation software, and the model quality is determined by model parameters such as the model volume and the material density of the model. More specifically, the simulation equipment needs to obtain the average electrodynamic acceleration based on the electrodynamic force borne by the electromagnetic field structure model and the simulation (model) quality corresponding to the electromagnetic field structure model. More specifically, the electrodynamic force generated by the component structure in the GIS equipment in the electromagnetic field Under the action of motion, and it can be considered that the electromotive force acceleration of each call on the component structure is ; So we can get the following expression:

[0101]

[0102]

[0103] Among them, M m Structural mass in electromagnetic field calculations; is the structural volume in the electromagnetic field structure finite element model; is the material density; The resultant electrodynamic force experienced by the structure in the electromagnetic field structure finite element model. After calculating the average electrodynamic acceleration, the deviation between the electrodynamic force in the embodiment and the actual force is minimized. The simplified model obtains the electromagnetic force under the simplified model. In actual scenarios, the electromagnetic force experienced by the non-simplified physical model differs significantly from the electrodynamic force obtained by the simplified model due to the simplification operation. The average electrodynamic acceleration is used as a common, identical physical quantity as a bridge to obtain the accurate electrodynamic force for the non-simplified model.

[0104] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0105] In conjunction with the instructions Figure 4 The complete implementation process of the structural mechanical strength verification method provided in the technical solution of this application is described as follows:

[0106] Step 1: Construct an electromagnetic field structure finite element model and determine the resultant electrodynamic force on the target structure in the electromagnetic field. A simplified electromagnetic field structure finite element model is generated, and an alternating current excitation is applied to the mesh discretized finite element model. According to Maxwell's equations, the changing current generates a changing magnetic field. According to the Ampere force law, a current-carrying conductor in a magnetic field is subject to the Ampere force, and each mesh element is subjected to the Ampere force. Finite element analysis is used to determine the resultant electrodynamic force on the electromagnetic structure finite element model.

[0107] Step 2: According to the electrodynamic force of the structure in the electromagnetic field and the mass of the structure in the electromagnetic field, the average electrodynamic acceleration is obtained. Under the action of motion, and assume that the electric acceleration of each particle on the structure is The electromagnetic force obtained from the simplified model corresponds to the electromagnetic force under the simplified model. Due to the simplification, the magnitude of the electromagnetic force on the actual non-simplified physical model differs significantly from the electromagnetic force obtained from the simplified model. By using the average electrodynamic acceleration as a common, equal-magnitude physical quantity as a bridge, the accurate electrodynamic force of the non-simplified model can be obtained.

[0108] Step three: Based on the structural mass in the structural strength finite element model, the average electrodynamic acceleration is used to obtain the electrodynamic force used in the structural strength calculation. The structural strength finite element model constructed in the structural dynamics analysis in the embodiment is more complex than the structural finite element model in the electromagnetic field analysis, so there are certain differences in volume and mass. Therefore, the embodiment introduces the average electrodynamic acceleration and then uses the structural mass in the structural strength calculation to calculate a more accurate electrodynamic force used in the structural strength verification process.

[0109] Step 4: Input the electric force used in the structural strength verification process into the structural strength calculation finite element model for solution to achieve mechanical strength verification under the electric force load. Introduced into the finite element model for structural strength calculation, due to The force on the structure is closer to the actual structure, so the mechanical strength verification under electrodynamic load is more accurate.

[0110] Based on the same inventive concept, embodiments of the present application also provide a structural mechanical strength verification device for implementing the structural mechanical strength verification method described above. The solution to the problem provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more structural mechanical strength verification device embodiments provided below can be found in the above-mentioned limitations of the structural mechanical strength verification method and will not be repeated here.

[0111] In one embodiment, Figure 5 As shown, a structural mechanical strength verification device 500 is provided, comprising: an information acquisition module 501, an acceleration calculation module 502, a force analysis module 503 and a strength verification module 504, wherein:

[0112] The information acquisition module 501 is used to acquire first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure.

[0113] The acceleration calculation module 502 is used to determine the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information.

[0114] The force analysis module 503 is used to generate second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model quality of the structural strength finite element model.

[0115] The strength verification module 504 is configured to generate a verification result of the mechanical strength of the structure according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure.

[0116] In one embodiment, the information acquisition module 501 is further configured to acquire an electromagnetic field structure model of the target structure in the electromagnetic field; and generate first force state information according to force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field.

[0117] In one embodiment, the information acquisition module 501 is also used to obtain current path information in the electromagnetic field structure model; compress the electromagnetic field structure model while retaining the current path information; and generate first force state information based on the force state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field.

[0118] In one embodiment, the information acquisition module 501 is also used to obtain the Ampere force data that each finite element unit in the electromagnetic field structure model is subjected to in the electromagnetic field; combine the Ampere force data corresponding to multiple finite element units to generate electrodynamic data of the electromagnetic field structure model; and generate the first force state information of the electromagnetic field structure model based on the electrodynamic data.

[0119] In one embodiment, the acceleration calculation module 502 is further configured to obtain the mass of the electromagnetic field structure model; and calculate the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information and the mass of the electromagnetic field structure model.

[0120] In one embodiment, the force analysis module 503 is further configured to obtain the material density and model volume of the structural strength finite element model; and obtain the mass of the structural model based on the material density and model volume.

[0121] Each module in the above-mentioned structural mechanical strength verification device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0122] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 6As shown. The computer device includes a processor, memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via wired or wireless means, and the wireless means can be achieved via Wi-Fi, mobile cellular networks, NFC (near-field communication), or other technologies. When executed by the processor, the computer program implements a method for verifying the mechanical strength of a structure. The display unit of the computer device is used to produce a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0123] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0124] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0125] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0126] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0127] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0128] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for verifying the mechanical strength of a structure, characterized in that: The method comprises: Acquiring first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure; determining an electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information, wherein the first force state information represents a state of the electromagnetic force applied to the target structure in the electromagnetic field; generating second force state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model, wherein the second force state information is used to represent that the structural strength finite element model corresponding to the target structure bears electromagnetic force; generating a verification result of the mechanical strength of the structure according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure; Determining the electrodynamic acceleration of the target structure in the electromagnetic field according to the first force state information includes: Obtain the quality of the electromagnetic field structure model; The electrodynamic acceleration of the target structure in the electromagnetic field is calculated based on the first force state information and the mass of the electromagnetic field structure model.

2. The method according to claim 1, characterized in that The method for obtaining the first force state information includes the following steps: Acquiring an electromagnetic field structure model of the target structure in the electromagnetic field; The first force state information is generated according to the force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field.

3. The method according to claim 2, characterized in that The generating the first force state information according to the force state information of each finite element unit in the electromagnetic field structure model in the electromagnetic field includes: Acquiring current path information in the electromagnetic field structure model; compressing the electromagnetic field structure model while retaining the current path information; The first force state information is generated based on the force state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field.

4. The method according to claim 3, characterized in that The generating of the first force state information based on the force state information of each finite element unit in the compressed electromagnetic field structure model in the electromagnetic field includes: Obtaining Ampere force data of each finite element unit in the electromagnetic field structure model in the electromagnetic field; combining Ampere force data corresponding to a plurality of finite element units to generate electrodynamic force data of the electromagnetic field structure model; First force state information of the electromagnetic field structure model is generated according to the electrodynamic data.

5. The method according to claim 1, characterized in that Generating a verification result of the mechanical strength of the structure according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure includes: The stress value is compared with the material strength value to determine whether the target structure meets the strength requirements, and a verification result of the mechanical strength of the structure is generated.

6. The method according to any one of claims 1 to 5, characterized in that Before generating second stress state information of the structural strength finite element model according to the electrodynamic acceleration and the structural model mass of the structural strength finite element model, the method further includes: Obtaining the material density and model volume of the structural strength finite element model; The mass of the structural model is obtained according to the material density and the model volume.

7. A device for verifying the mechanical strength of a structure, characterized in that: The device comprises: An information acquisition module, configured to acquire first stress state information of the target structure in the electromagnetic field and a structural strength finite element model corresponding to the target structure; an acceleration calculation module, configured to determine an electrodynamic acceleration of the target structure in the electromagnetic field based on the first force state information, wherein the first force state information represents a state of the electromagnetic force applied to the target structure in the electromagnetic field; a force analysis module, configured to generate second force state information of the structural strength finite element model based on the electrodynamic acceleration and the structural model mass of the structural strength finite element model, wherein the second force state information is used to characterize the electromagnetic force borne by the structural strength finite element model corresponding to the target structure; a strength verification module, configured to generate a verification result of the mechanical strength of the structure according to the stress value of the structural strength finite element model in the second stress state information and the material strength value corresponding to the target structure; The acceleration calculation module is further configured to obtain the mass of the electromagnetic field structure model, and calculate the electrodynamic acceleration of the target structure in the electromagnetic field based on the first force state information and the mass of the electromagnetic field structure model.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

Images