Method and device for determining service life of steel structure, storage medium and electronic device

Abstract

The invention discloses a method and device for determining the service life of a steel structure, a storage medium and an electronic device.The method comprises the steps that monitoring data obtained by monitoring a basic structure are obtained, and the monitoring data comprise parameter values of different monitoring parameters; obtaining a corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions, and calculating the residual structure thickness of the basic structure according to the corrosion rate simulation value and the original thickness of the basic structure; and determining the residual service life of the base structure based on the residual structure thickness. By adopting the technical scheme, the problem that the service life of the steel structure in the marine environment cannot be accurately determined is solved.

Description

Technical Field

[0001] The present application relates to the technical field of determining the life of a steel structure, and in particular, to a method and device for determining the life of a steel structure, a storage medium, and an electronic device. Background Art

[0002] In the wave of growing demand for renewable energy, offshore wind power generation, as a key green energy technology, has become increasingly prominent in the global energy transformation. However, the continuous and reliable operation of offshore wind power facilities faces severe challenges, especially the corrosion protection of their underwater infrastructure. These infrastructures have been exposed to highly corrosive marine environments for a long time, and not only have to withstand the erosion of seawater, but also face the multiple influences of waves, tides and marine life. For example, electrochemical inhomogeneity can easily cause accelerated corrosion in local areas of the structure. In addition, fatigue corrosion and stress corrosion cracking are also common corrosion problems, which often accelerate the corrosion process when the structure is subjected to periodic stress or specific stress conditions, thereby shortening the service life of offshore wind power facilities.

[0003] At present, corrosion monitoring of offshore wind power facilities mainly relies on a single corrosion factor such as corrosion potential. However, this monitoring method ignores the combined effects of multiple other factors such as environmental factors on the corrosion rate, and cannot accurately know the corrosion progress and remaining life of the structure, resulting in the inability to accurately determine the life of the structure. Therefore, in the relevant technology, there is currently no effective solution to the problem of being unable to accurately determine the life of steel structures in marine environments.

[0004] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0005] The embodiments of the present application provide a method and device for determining the life of a steel structure, a storage medium, and an electronic device, so as to at least solve the problem that the life of a steel structure in a marine environment cannot be accurately determined.

[0006] According to one aspect of an embodiment of the present application, a method for determining the service life of a steel structure is provided, comprising: obtaining monitoring data obtained by monitoring the base structure, wherein the monitoring data includes parameter values ​​of different monitoring parameters; obtaining corrosion rate simulation values ​​obtained by calculating the monitoring data under different simulation conditions, and calculating the remaining structural thickness of the base structure based on the corrosion rate simulation values ​​and the original thickness of the base structure; and determining the remaining service life of the base structure based on the remaining structural thickness.

[0007] In an exemplary embodiment, the different monitoring parameters include at least one of the following: compound parameters, mechanical property parameters, microstructure parameters, and obtaining monitoring data obtained by monitoring the base structure includes: determining the structural material used by the base structure; determining the target monitoring parameter from the different monitoring parameters according to the material type of the structural material, and monitoring the base structure according to the target monitoring parameter to obtain the parameter value of the target monitoring parameter; determining the monitoring data according to the parameter value of the target monitoring parameter.

[0008] In an exemplary embodiment, obtaining the corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions includes: calculating the monitoring data according to a corrosion rate calculation formula to obtain the corrosion rate simulation value; wherein the corrosion rate calculation formula is expressed as follows:

[0009] R=f(M,P); wherein R represents the corrosion rate simulation value, f(M,P) represents the function for calculating the monitoring data under different simulation conditions, M represents the parameter value included in the monitoring data, and P represents the seawater environment parameters under different simulation conditions.

[0010] In an exemplary embodiment, the parameter value includes current, and the corrosion rate simulation value obtained after calculating the monitoring data under different simulation conditions is obtained, including: for each simulation condition of the different simulation conditions, determining the seawater environmental parameters under each simulation condition, and determining the target external voltage corresponding to the base structure when working under the seawater environmental parameters, wherein the target external voltage represents the power supply voltage of the external power supply of the base structure; obtaining the initial current of the base structure under the initial external voltage and the target current of the base structure under the target external voltage; determining the corrosion current density of the corroded base structure according to the change values ​​of the initial current and the target current, and determining the corrosion rate simulation value according to the corrosion current density.

[0011] In an exemplary embodiment, a corrosion rate simulation value is obtained after calculating the monitoring data under different simulation conditions, including: for each simulation condition of the different simulation conditions, a corrosion tank is set according to the seawater environmental parameters under each simulation condition; a mass change value of the sample structure of the base structure in the corrosion tank is obtained from the monitoring data, and the corrosion rate simulation value is determined according to the mass change value.

[0012] In an exemplary embodiment, the remaining structural thickness of the base structure is calculated based on the corrosion rate simulation value and the original thickness of the base structure, including: calculating the corroded structural thickness of the base structure in a historical time period based on the corrosion rate simulation value; and determining the remaining structural thickness based on the difference between the original thickness and the corroded structural thickness.

[0013] According to another aspect of an embodiment of the present application, a device for determining the life of a steel structure is also provided, including: a monitoring module, used to obtain monitoring data obtained by monitoring the base structure, wherein the monitoring data includes parameter values ​​of different monitoring parameters; a calculation module, used to obtain a corrosion rate simulation value obtained after calculating the monitoring data under different simulation conditions, and calculate the remaining structural thickness of the base structure based on the corrosion rate simulation value and the original thickness of the base structure; a determination module, used to determine the remaining service life of the base structure based on the remaining structural thickness.

[0014] According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned method for determining the life of a steel structure when running.

[0015] According to another aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method for determining the life of the steel structure through the computer program.

[0016] According to another aspect of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0017] Through the present application, monitoring data including parameter values ​​of different monitoring parameters are obtained by monitoring the foundation structure, and corrosion rate simulation values ​​are obtained after calculating the monitoring data under different simulation conditions, and the remaining structural thickness of the foundation structure is calculated according to the corrosion rate simulation value and the original thickness of the foundation structure, and then the remaining service life of the foundation structure is determined based on the remaining structural thickness. The present application comprehensively considers various corrosion influencing factors to determine the life of the steel structure, uses the accurately calculated corrosion rate to study the influence of corrosion on the remaining thickness of the structure, and then determines the service life of the foundation structure, which solves the problem of being unable to accurately determine the life of the steel structure in the marine environment, improves the accuracy of the life of the steel structure, realizes the accurate assessment and effective management of the corrosion status of offshore wind power facilities, improves the operating stability of offshore wind power facilities, and also provides a reliable analysis basis for timely replacement of steel structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a hardware structure block diagram of a mobile terminal of a method for determining the life of a steel structure according to an embodiment of the present application;

[0021] Figure 2 is a flow chart of a method for determining the life of a steel structure according to an embodiment of the present application;

[0022] Figure 3 It is a structural block diagram of a device for determining the life of a steel structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 11 is a hardware structure block diagram of a mobile terminal of a method for determining the life of a steel structure in an embodiment of the present application. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0026] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining the life of a steel structure in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0027] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0028] In this embodiment, a method for determining the life of a steel structure is provided. Figure 2 is a flow chart of a method for determining the life of a steel structure according to an embodiment of the present application, such as Figure 2As shown, the process includes the following steps:

[0029] Step S202: Acquire monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters;

[0030] It should be noted that the above-mentioned different monitoring parameters are determined based on the corrosion effects on infrastructure from multiple aspects such as material science, environmental monitoring, and industrial production. By using different monitoring parameters, the properties and quality of substances can be comprehensively evaluated and controlled. For example, in environmental monitoring, parameters such as seawater salinity, seawater temperature, and seawater flow rate can be selected. In material science, parameters such as chemical composition and mechanical properties can be selected from the perspectives of material properties and stress state of the infrastructure.

[0031] Step S204: obtaining corrosion rate simulation values ​​obtained by calculating the monitoring data under different simulation conditions, and calculating the remaining structural thickness of the foundation structure according to the corrosion rate simulation values ​​and the original thickness of the foundation structure;

[0032] Step S206: determining the remaining service life of the base structure based on the remaining structure thickness.

[0033] Furthermore, the allowable service life of the infrastructure may be determined according to the remaining service life and the current service life of the infrastructure, and the service life limit of the steel structure may be set based on the allowable service life.

[0034] Through the above steps, monitoring data including parameter values ​​of different monitoring parameters are obtained by monitoring the foundation structure, and corrosion rate simulation values ​​are obtained after calculating the monitoring data under different simulation conditions, and the remaining structural thickness of the foundation structure is calculated according to the corrosion rate simulation value and the original thickness of the foundation structure, and then the remaining service life of the foundation structure is determined based on the remaining structural thickness. The present application comprehensively considers various corrosion influencing factors to determine the life of the steel structure, uses the accurately calculated corrosion rate to study the influence of corrosion on the remaining thickness of the structure, and then determines the service life of the foundation structure, which solves the problem that the life of the steel structure in the marine environment cannot be accurately determined, improves the accuracy of the life of the steel structure, realizes the accurate assessment and effective management of the corrosion status of offshore wind power facilities, improves the operating stability of offshore wind power facilities, and also provides a reliable analysis basis for timely replacement of steel structures.

[0035] In an exemplary embodiment, the different monitoring parameters include at least one of the following: compound parameters, mechanical property parameters, and microstructure parameters. The process of obtaining the monitoring data obtained by monitoring the infrastructure specifically includes: determining the structural material used by the infrastructure; determining the target monitoring parameter from the different monitoring parameters according to the material type of the structural material, and monitoring the infrastructure according to the target monitoring parameter to obtain the parameter value of the target monitoring parameter; and determining the monitoring data according to the parameter value of the target monitoring parameter.

[0036] In this embodiment, the chemical composition, mechanical properties, microstructure and other material properties of the structural material can be analyzed, and the monitoring data can be determined based on the changes in these material properties. These three parameters are interrelated. The chemical composition determines the basic properties of the infrastructure, the microstructure affects the mechanical properties and physical properties of the infrastructure, and the mechanical properties directly determine the performance of the infrastructure in practical applications. Therefore, in the corrosion prevention and control process of the infrastructure, comprehensive monitoring of these parameters is of great significance to improve the service life of the infrastructure.

[0037] It is understood that chemical composition corresponds to the above-mentioned compound parameters, which represent the elemental composition of a substance. For example, in materials science, by monitoring the chemical composition of an infrastructure (e.g., composed of metals or metal alloys), properties such as strength and corrosion resistance can be obtained. In environmental monitoring, by monitoring the chemical composition of the air or water in which the infrastructure is located, the degree and type of pollution can be assessed.

[0038] Mechanical performance monitoring mainly evaluates the response and behavior of the infrastructure under the action of forces, including strength, hardness, toughness, elastic modulus, fatigue performance, etc. For example, monitoring the mechanical properties of the infrastructure can ensure its safety and durability.

[0039] Microstructure monitoring focuses on the organization and morphology of materials at the microscopic scale, including crystal structure, phase composition, grain size and morphology, microscopic defects, etc. The microstructure has a significant impact on the strength, toughness, conductivity and other properties of the infrastructure. For example, by monitoring the microstructure of the infrastructure, its corrosion state can be assessed.

[0040] In an exemplary embodiment, the process of obtaining the corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions can be described by the following steps: the monitoring data is calculated according to the corrosion rate calculation formula to obtain the corrosion rate simulation value; wherein the corrosion rate calculation formula is expressed as follows:

[0041] R=f(M,P); wherein R represents the corrosion rate simulation value, f(M,P) represents the function for calculating the monitoring data under different simulation conditions, M represents the parameter value included in the monitoring data, and P represents the seawater environment parameters under different simulation conditions.

[0042] In an exemplary embodiment, the parameter value includes current, and a technical solution is also proposed for obtaining a corrosion rate simulation value obtained after calculating the monitoring data under different simulation conditions, specifically including: for each simulation condition of the different simulation conditions, determining the seawater environmental parameters under each simulation condition, and determining the target external voltage corresponding to the infrastructure when working under the seawater environmental parameters, wherein the target external voltage represents the power supply voltage of the external power supply of the infrastructure; obtaining the initial current of the infrastructure under the initial external voltage and the target current of the infrastructure under the target external voltage; determining the corrosion current density of the infrastructure according to the change values ​​of the initial current and the target current, and determining the corrosion rate simulation value according to the corrosion current density.

[0043] In this embodiment, the corrosion rate is monitored using an electrochemical test method, which can reflect the corrosion condition of the foundation structure in a simulated seawater environment.

[0044] The test process is generally to connect the infrastructure to an electrochemical workstation. Then, techniques such as CP (Cathodic Protection) or EIS (Electrochemical Impedance Spectroscopy) are used to monitor the electrochemical reaction on the surface of the infrastructure. The voltage applied to the infrastructure can be changed and the current changes can be recorded. Finally, the measurement data is analyzed using software to calculate the corrosion current density, and then the corrosion rate can be inferred. For example, the corrosion current density can be analyzed based on the Tafel polarization curve or electrochemical impedance spectrum to obtain the calculated corrosion rate.

[0045] EIS is an electrochemical technique for monitoring charge transfer behavior at the electrode / electrolyte interface. CP refers to the prevention of electrochemical corrosion of the structure by sacrificial anode or impressed current.

[0046] Optionally, the electrochemical test method can also be used to test parameters such as redox potential, pH value, conductivity, dissolved oxygen concentration, etc.

[0047] Redox potential is an indicator of the relative concentration of oxidants and reductants in water, which can be directly obtained through electrochemical measurement. The process of measuring redox potential is, for example, placing a redox potential electrode (which can be a platinum or gold electrode) in seawater, and reading the potential difference between the electrode and the reference electrode (such as a silver / silver chloride electrode), which is the ORP value. The change in ORP reflects the change in the redox state in water, which is of great significance for monitoring seawater pollution and the self-purification capacity of water bodies.

[0048] The pH value reflects the acidity and alkalinity of the water body and can be measured by potentiometric method using a pH electrode. The process of pH value measurement is, for example, placing the pH electrode in seawater, measuring the potential difference between the electrode and the reference electrode, and converting it to pH value using an electrochemical workstation or a specialized pH meter. Changes in pH value reflect changes in the degree of seawater acidification, which has a direct impact on marine life and coral reef health.

[0049] Conductivity reflects the ability of water to conduct electricity and is related to the ion concentration in the water. Conductivity can be calculated by measuring the resistance or conductance of seawater. The process of conductivity measurement is, for example, to use a conductivity electrode (which can be a platinum electrode) placed in seawater to measure the current or resistance passing through the seawater. An electrochemical workstation or conductivity meter can convert these measurements into conductivity, reflecting changes in seawater salinity and pollution levels.

[0050] The dissolved oxygen concentration can be measured by an electrochemical probe (such as Clark electrode) based on the reduction reaction of oxygen on the electrode surface. The process of measuring dissolved oxygen concentration is, for example, placing a dissolved oxygen electrode in seawater, applying voltage to reduce oxygen on the electrode surface, and generating current. The current is proportional to the dissolved oxygen concentration. The current signal can be read by an electrochemical workstation or dissolved oxygen meter to calculate the dissolved oxygen concentration. The change in dissolved oxygen reflects the biological activity and self-purification ability of seawater.

[0051] In an exemplary embodiment, further, another implementation scheme for obtaining the corrosion rate simulation value obtained after calculating the monitoring data under different simulation conditions is proposed, specifically including: for each simulation condition of the different simulation conditions, setting a corrosion tank according to the seawater environmental parameters under each simulation condition; obtaining the mass change value of the sample structure of the base structure in the corrosion tank from the monitoring data, and determining the corrosion rate simulation value based on the mass change value.

[0052] The corrosion rate simulation value is determined according to the mass change value, and specifically, the corrosion rate simulation value is determined by utilizing the ratio between the mass change value and the corrosion time period.

[0053] Optionally, in one embodiment, a method for determining the corrosion degree of a foundation structure in a simulated seawater environment may be proposed in combination with the following steps.

[0054] Step 1. Define monitoring parameters. It is necessary to determine the parameters to be monitored, such as corrosion rate, composition of corrosion products, electrochemical properties (such as potential, current density), surface morphology changes, material mass loss, etc.

[0055] Step 2. Set the environmental parameters of seawater, such as temperature, salinity, pH value, dissolved oxygen concentration, flow rate, etc.

[0056] Step 3. Material preparation and pretreatment: Select the materials to be tested and perform necessary pretreatment, such as cleaning, polishing, weighing, etc., to ensure the accuracy of the experiment.

[0057] Step 4. Exposure test: Place the treated material in a set seawater environment for a certain period of time. For example, this can be done in a laboratory corrosion tank or in a field test in an actual marine environment.

[0058] Step 5. Data collection: Collect data from the test regularly, which may include measuring the mass loss of the material, changes in electrochemical parameters, changes in surface morphology, etc. The frequency of data collection depends on the nature of the test and the corrosion rate of the material.

[0059] Step 6. Data analysis: Process and analyze the collected data to calculate the change values ​​of different monitoring parameters under different seawater environmental parameters. For example, use mass loss data to calculate corrosion rate, use electrochemical methods to evaluate changes in corrosion potential, and use surface analysis technology to observe the formation of corrosion products.

[0060] Step 7. Interpretation and application of results: Based on the corrosion behavior of the infrastructure in a specific seawater environment as reflected by the analysis results, evaluate the impact of environmental parameters on corrosion and apply this information to material selection, design, protection and life prediction.

[0061] In an exemplary embodiment, the process of calculating the remaining structural thickness of the base structure based on the corrosion rate simulation value and the original thickness of the base structure may include: calculating the corroded structural thickness of the base structure in a historical time period based on the corrosion rate simulation value; and determining the remaining structural thickness based on the difference between the original thickness and the corroded structural thickness.

[0062] Obviously, the embodiments described above are only some embodiments of the present application, not all embodiments. In order to better understand the above method, the above process is described below in conjunction with the embodiments, but it is not intended to limit the technical solutions of the embodiments of the present application, specifically:

[0063] In an optional embodiment, the present application describes the process of determining the service life of a steel structure through the following steps.

[0064] Step 1: Analyze the material properties and corrosion susceptibility of the foundation structure.

[0065] The material characteristics of the infrastructure are analyzed in terms of chemical composition, mechanical properties, microstructure, etc., and the infrastructure is monitored accordingly. The parameter values ​​of the above compound parameters are monitored based on the chemical composition, the parameter values ​​of the above mechanical property parameters are monitored based on the mechanical properties, and the parameter values ​​of the above microstructure parameters are monitored based on the microstructure.

[0066] By studying the corrosion sensitivity of the material properties of the foundation structure in seawater, the corrosion rate of the foundation structure under different seawater environmental conditions can be determined. Specifically, the corrosion rate can be obtained through electrochemical testing, corrosion experiments and other methods. The relationship between the corrosion rate and the material properties (corresponding to the above parameter values) and the seawater environmental parameter P is as follows:

[0067] R=f(M,P).

[0068] R represents the simulated corrosion rate value, f(M, P) represents the function of calculating the monitoring data under different simulation conditions, M represents the parameter value included in the monitoring data, and P represents the seawater environment parameter under different simulation conditions. The specific function form can be determined based on experimental data and theoretical analysis.

[0069] Step 2: Calculate the remaining thickness (i.e. the remaining structural thickness) and predict the lifespan.

[0070] First, the corrosion allowance of the steel structure is evaluated based on the remaining thickness (corresponding to the remaining thickness). The remaining thickness calculation formula is as follows:

[0071]

[0072] Among them, T res is the current remaining thickness, T0 is the original thickness, R i is the corrosion rate in the i-th time period of history, t i is the length of time during the i-th time period.

[0073] In this embodiment, the remaining service life of the steel structure can also be flexibly predicted by dynamically adjusting the corrosion rate and the remaining thickness. The remaining service life prediction formula is as follows:

[0074]

[0075] Among them, L res is the remaining life, T min This is the minimum safe thickness.

[0076] Through the above-mentioned embodiments, the corrosion allowance of the foundation structure is comprehensively evaluated by combining electrochemical monitoring, numerical simulation and fatigue corrosion coupling analysis, so that the corrosion condition of the foundation structure can be monitored in real time. Through experiments and simulations of future corrosion behaviors, the corrosion sensitivity of the foundation structure in seawater can be studied, and its corrosion rate and corrosion mode under different seawater environmental conditions can be determined, thereby predicting the remaining service life corresponding to the corrosion rate.

[0077] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0078] In this embodiment, a device for determining the life of a steel structure is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0079] Figure 3 : is a structural block diagram of a device for determining the life of a steel structure according to an embodiment of the present application, the device comprising:

[0080] A monitoring module 42, configured to obtain monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters;

[0081] A calculation module 44 is used to obtain a corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions, and calculate the remaining structural thickness of the foundation structure according to the corrosion rate simulation value and the original thickness of the foundation structure;

[0082] The determination module 46 is configured to determine the remaining useful life of the base structure based on the remaining structural thickness.

[0083] Through the above-mentioned device, monitoring data including parameter values ​​of different monitoring parameters are obtained by monitoring the foundation structure, and corrosion rate simulation values ​​are obtained after calculating the monitoring data under different simulation conditions, and the remaining structural thickness of the foundation structure is calculated according to the corrosion rate simulation value and the original thickness of the foundation structure, and then the remaining service life of the foundation structure is determined based on the remaining structural thickness. The present application comprehensively considers various corrosion influencing factors to determine the life of the steel structure, uses the accurately calculated corrosion rate to study the influence of corrosion on the remaining thickness of the structure, and then determines the service life of the foundation structure, which solves the problem that the life of the steel structure in the marine environment cannot be accurately determined, improves the accuracy of the life of the steel structure, realizes the accurate assessment and effective management of the corrosion status of offshore wind power facilities, improves the operating stability of offshore wind power facilities, and also provides a reliable analysis basis for the timely replacement of steel structures.

[0084] In an exemplary embodiment, the different monitoring parameters include at least one of the following: compound parameters, mechanical property parameters, microstructure parameters, and the monitoring module 42 is also used to: determine the structural material used for the base structure; determine the target monitoring parameter from the different monitoring parameters according to the material type of the structural material, and monitor the base structure according to the target monitoring parameter to obtain the parameter value of the target monitoring parameter; determine the monitoring data according to the parameter value of the target monitoring parameter.

[0085] In an exemplary embodiment, the calculation module 44 is further used to: calculate the monitoring data according to the corrosion rate calculation formula to obtain the corrosion rate simulation value; wherein the corrosion rate calculation formula is expressed as follows:

[0086] R=f(M,P); wherein R represents the corrosion rate simulation value, f(M,P) represents the function for calculating the monitoring data under different simulation conditions, M represents the parameter value included in the monitoring data, and P represents the seawater environment parameters under different simulation conditions.

[0087] In an exemplary embodiment, the parameter value includes current, and the calculation module 44 is also used to: determine the seawater environmental parameters under each simulation condition for each of the different simulation conditions, and determine the target external voltage corresponding to the base structure when it operates under the seawater environmental parameters, wherein the target external voltage represents the power supply voltage of the external power supply of the base structure; obtain the initial current of the base structure under the initial external voltage and the target current of the base structure under the target external voltage; determine the corrosion current density of the corroded base structure according to the change values ​​of the initial current and the target current, and determine the corrosion rate simulation value according to the corrosion current density.

[0088] In an exemplary embodiment, the calculation module 44 is also used to: for each simulation condition of the different simulation conditions, set a corrosion tank according to the seawater environmental parameters under each simulation condition; obtain the mass change value of the sample structure of the foundation structure in the corrosion tank from the monitoring data, and determine the corrosion rate simulation value according to the mass change value.

[0089] In an exemplary embodiment, the determination module 46 is further used to: calculate the corroded structural thickness of the base structure in a historical time period according to the corrosion rate simulation value; and determine the remaining structural thickness according to the difference between the original thickness and the corroded structural thickness.

[0090] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0091] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0092] S1, acquiring monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters;

[0093] S2, obtaining corrosion rate simulation values ​​obtained by calculating the monitoring data under different simulation conditions, and calculating the remaining structural thickness of the foundation structure according to the corrosion rate simulation values ​​and the original thickness of the foundation structure;

[0094] S3, determining the remaining service life of the base structure based on the remaining structure thickness.

[0095] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0096] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0097] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0098] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0099] S1, acquiring monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters;

[0100] S2, obtaining corrosion rate simulation values ​​obtained by calculating the monitoring data under different simulation conditions, and calculating the remaining structural thickness of the foundation structure according to the corrosion rate simulation values ​​and the original thickness of the foundation structure;

[0101] S3, determining the remaining service life of the base structure based on the remaining structure thickness.

[0102] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0103] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0104] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0105] An embodiment of the present application also provides a computer program, which includes computer instructions, which are stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the steps in any one of the above method embodiments.

[0106] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0107] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0108] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for determining the service life of a steel structure, characterized in that: A steel structure for use in a marine environment, wherein the steel structure comprises at least a submerged infrastructure, including: Acquiring monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters; Acquire corrosion rate simulation values ​​obtained by calculating the monitoring data under different simulation conditions, and calculate the remaining structural thickness of the foundation structure according to the corrosion rate simulation values ​​and the original thickness of the foundation structure; A remaining useful life of the base structure is determined based on the remaining structural thickness.

2. The method according to claim 1, characterized in that The different monitoring parameters include at least one of the following: compound parameters, mechanical property parameters, and microstructure parameters. The monitoring data obtained by monitoring the basic structure includes: Determining the structural materials used for the base structure; Determining a target monitoring parameter from the different monitoring parameters according to the material type of the structural material, and monitoring the infrastructure according to the target monitoring parameter to obtain a parameter value of the target monitoring parameter; The monitoring data is determined according to the parameter value of the target monitoring parameter.

3. The method according to claim 1, characterized in that The corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions includes: Calculating the monitoring data according to the corrosion rate calculation formula to obtain the corrosion rate simulation value; The corrosion rate calculation formula is as follows: R = f(M,P); Wherein, R represents the simulated value of the corrosion rate, f(M,P) represents the function for calculating the monitoring data under different simulation conditions, M represents the parameter value included in the monitoring data, and P represents the seawater environment parameters under different simulation conditions.

4. The method according to claim 1, characterized in that The parameter value includes current, and obtaining the corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions includes: For each simulation condition of the different simulation conditions, determining the seawater environment parameters under each simulation condition, and determining the target external voltage corresponding to the basic structure when working under the seawater environment parameters, wherein the target external voltage represents the power supply voltage of the external power supply of the basic structure; Acquire an initial current of the basic structure at an initial external voltage and a target current of the basic structure at the target external voltage; The corrosion current density of the base structure being corroded is determined according to the change values ​​of the initial current and the target current, and the corrosion rate simulation value is determined according to the corrosion current density.

5. The method according to claim 1, characterized in that The corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions includes: For each of the different simulation conditions, setting a corrosion tank according to the seawater environment parameters under each simulation condition; The mass change value of the sample structure of the base structure in the corrosion tank is obtained from the monitoring data, and the corrosion rate simulation value is determined according to the mass change value.

6. The method according to claim 1, characterized in that Calculating the remaining structural thickness of the base structure according to the corrosion rate simulation value and the original thickness of the base structure includes: Calculate the corroded structure thickness of the foundation structure in the historical time period according to the corrosion rate simulation value; The remaining structure thickness is determined based on the difference between the original thickness and the corroded structure thickness.

7. A device for determining the life of a steel structure, characterized in that: include: A monitoring module, used to obtain monitoring data obtained by monitoring the infrastructure, wherein the monitoring data includes parameter values ​​of different monitoring parameters; A calculation module, used for obtaining a corrosion rate simulation value obtained by calculating the monitoring data under different simulation conditions, and calculating the remaining structural thickness of the foundation structure according to the corrosion rate simulation value and the original thickness of the foundation structure; A determination module is used to determine the remaining service life of the base structure based on the remaining structural thickness.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

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.

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