Method and device for acquiring soil resistance of offshore wind power component

Abstract

The embodiment of the invention provides a method and a device for acquiring soil resistance of an offshore wind power component. The method comprises the following steps of: acquiring a measured strain value aiming at a target measured section by adopting a strain value acquiring unit aiming at the target measured section; calculating a dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measurement strain value and the bridge arm coefficient; the dynamic bending moment value is polished, and a smooth bending moment value is determined; calculating a smooth shear force value for the offshore wind power tower tube based on the plurality of smooth bending moment values for different sections; calculating a soil resistance value for the foundation component based on the smooth shear force value; generating a test result by adopting the smooth bending moment value, the smooth shear force value and the soil resistance value; abrupt change points and discontinuity are eliminated or reduced, so that a bending moment curve is closer to an actual physical condition, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of load test data processing, and in particular to a method for obtaining soil resistance of an offshore wind power component, a device for obtaining soil resistance of an offshore wind power component, an electronic device, and a computer-readable storage medium. Background Art

[0002] The offshore wind turbine tower serves as a load transfer structure between the wind turbine foundation and the upper tower. In real marine environments, the upper load of the wind turbine is transferred to the tower, and then to the jacket foundation through the tower. Therefore, the actual load capacity of the connection between the jacket and the tower is crucial to the design. Summary of the invention

[0003] An embodiment of the present invention provides a method, device, electronic device and computer-readable storage medium for obtaining soil resistance of offshore wind power components to overcome the above problems or at least partially solve the above problems.

[0004] The embodiment of the present invention discloses a method for obtaining soil resistance of an offshore wind power component, and the method is applied to an offshore wind power tower bending moment and shear load test system, comprising:

[0005] Determine a target measurement section for an offshore wind turbine tower; the offshore wind turbine tower bending moment and shear load test system is configured with a strain value acquisition unit for the target measurement section, the strain value acquisition unit includes a first strain gauge and a second strain gauge for the horizontal direction, and a third strain gauge and a fourth strain gauge for the vertical direction; the first strain gauge and the fourth strain gauge are adjacent to each other and arranged vertically as a first strain gauge group, the second strain gauge and the third strain gauge are adjacent to each other and arranged vertically as a second strain gauge group, the first strain gauge group and the second strain gauge group are respectively arranged on both sides of the offshore wind turbine tower, forming a group of strain value acquisition units;

[0006] Determining a bridge arm coefficient for the offshore wind turbine tower;

[0007] Determining a tower elastic modulus and a section resistance moment for the offshore wind power tower;

[0008] Using a strain value acquisition unit for the target measurement section to acquire a measured strain value for the target measurement section;

[0009] Calculating a dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value, and the bridge arm coefficient;

[0010] Performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value;

[0011] Calculating a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections;

[0012] Calculating a soil resistance value for the foundation member based on the smoothed shear force value;

[0013] The smoothed bending moment value, the smoothed shear force value and the soil resistance value are used to generate a test result.

[0014] Optionally, a plurality of groups of the strain value acquisition units are arranged on the same vertical line, and the arrangement direction of the strain value acquisition units is determined based on the bending direction of the offshore wind turbine tower.

[0015] Optionally, the step of calculating the dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient comprises:

[0016] The elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient are input into Formula 1 to calculate the dynamic bending moment value for the target measurement section. The Formula 1 is:

[0017] M=E·W·ε 测 / A

[0018] Wherein, M is the first dynamic bending moment value, E is the elastic modulus, W is the section resistance moment, ε 测 is the measured strain value, and A is the bridge arm coefficient.

[0019] Optionally, the step of performing polishing on the dynamic bending moment value to determine the smooth bending moment value comprises:

[0020] Determine a first initial bending moment value obtained by converting the dynamic bending moment value of the first measured section downward from the top of the wind turbine tower;

[0021] Determine a second initial bending moment value obtained by converting the dynamic bending moment value of a second measuring section downward from the top of the offshore wind power tower;

[0022] Determine a third initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the top of the wind turbine tower;

[0023] Determine a fourth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the top of the cylinder of the offshore wind power tower;

[0024] Determine a fifth initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the top of the cylinder of the offshore wind power tower;

[0025] A smoothing moment value is determined by the first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value, and the fifth initial bending moment value.

[0026] Optionally, the step of determining a smoothed bending moment value through the first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value comprises:

[0027] The first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value are input into Formula 2 to calculate a first smoothed bending moment value of a first measuring section downward from the top of the offshore wind tower and a second smoothed bending moment value of a second measuring section downward from the top of the offshore wind tower. Formula 2 is:

[0028]

[0029] in,

[0030] M(x0-2h) is the first initial bending moment value;

[0031] M(x0-h) is the second initial bending moment value;

[0032] M(x0) is the third initial bending moment value;

[0033] M(x0+h) is the fourth initial bending moment value;

[0034] M(x0+2h) is the fifth initial bending moment value;

[0035] is the first smoothed bending moment value;

[0036] is the second smoothed bending moment value.

[0037] Optionally, it also includes:

[0038] Determine a sixth initial bending moment value obtained by converting the dynamic bending moment value of a second measuring section upward from the middle section of the offshore wind power tower;

[0039] Determine a seventh initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section upward from the middle section of the offshore wind power tower;

[0040] Determine an eighth initial bending moment value obtained by converting the dynamic bending moment value of the middle section of the offshore wind power tower;

[0041] Determine a ninth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the middle section of the offshore wind power tower;

[0042] Determine a tenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the middle section of the offshore wind power tower;

[0043] A smoothing moment value is determined by the sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value, and the tenth initial bending moment value.

[0044] Optionally, the step of determining a smoothed bending moment value by using the sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value and the tenth initial bending moment value comprises:

[0045] The sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value and the tenth initial bending moment value are input into Formula 3 to calculate a third smoothed bending moment value of the middle section of the offshore wind power tower. Formula 3 is:

[0046]

[0047] in,

[0048] M(x0-2h) is the sixth initial bending moment value;

[0049] M(x0-h) is the seventh initial bending moment value;

[0050] M(x0) is the eighth initial bending moment value;

[0051] M(x0+h) is the ninth initial bending moment value;

[0052] M(x0+2h) is the tenth initial bending moment value;

[0053] is the third smoothed bending moment value.

[0054] Optionally, it also includes:

[0055] Determine an eleventh initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the bottom end of the cylinder of the offshore wind power tower;

[0056] Determine a twelfth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the bottom end of the offshore wind power tower;

[0057] Determine a thirteenth initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the bottom end of the offshore wind power tower;

[0058] Determine a fourteenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the bottom end of the cylinder of the offshore wind power tower;

[0059] Determine the fifteenth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the bottom end of the offshore wind power tower;

[0060] A smoothed bending moment value is determined by the eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value, and the fifteenth initial bending moment value.

[0061] Optionally, the step of determining a smoothed bending moment value by using the eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value and the fifteenth initial bending moment value comprises:

[0062] The eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value and the fifteenth initial bending moment value are input into Formula 4 to calculate a fourth smoothed bending moment value of the second measuring section upward from the bottom end of the offshore wind tower and a fifth smoothed bending moment value of the first measuring section upward from the bottom end of the offshore wind tower. Formula 4 is:

[0063]

[0064] in,

[0065] M(x0-2h) is the eleventh initial bending moment value;

[0066] M(x0-h) is the twelfth initial bending moment value;

[0067] M(x0) is the thirteenth initial bending moment value;

[0068] M(x0+h) is the value of the fourteenth initial bending moment;

[0069] M(x0+2h) is the fifteenth initial bending moment value;

[0070] is the fourth smooth bending moment value;

[0071] is the fifth smooth bending moment value.

[0072] Optionally, the step of calculating a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections comprises:

[0073] Determining the length of the offshore wind tower;

[0074] The length of the offshore wind power tower, the first smoothed bending moment value, the second smoothed bending moment value, the third smoothed bending moment value, the fourth smoothed bending moment value and the fifth smoothed bending moment value are input into Formula 5 to calculate the smoothed shear force value for the offshore wind power tower, and Formula 5 is:

[0075]

[0076] Among them, Q(x0-2h), Q(x0-h), Q(x0), Q(x0+h) and Q(x0+2h) are the smooth shear force values, and is the length of the offshore wind tower.

[0077] Optionally, the step of calculating the soil resistance value for the foundation component based on the smoothed shear force value comprises:

[0078] Determining the pile diameter of the offshore wind power tower;

[0079] Substituting the pile diameter, the length of the offshore wind power tower and the smooth shear force value into Formula 6 to calculate the soil resistance value for the offshore wind power tower, the Formula 6 is:

[0080]

[0081] Wherein, B is the diameter of the pile body.

[0082] Optionally, it also includes:

[0083] Based on the pile diameter, a distribution diagram of the soil resistance value is obtained by the second derivative of the dynamic bending moment value.

[0084] The embodiment of the present invention further discloses a device for acquiring soil resistance of an offshore wind power component, the device being applied to an offshore wind power tower bending moment and shear load test system, comprising:

[0085] A target measurement section determination module is used to determine a target measurement section for an offshore wind power tower; the offshore wind power tower bending moment and shear load test system is configured with a strain value acquisition unit for the target measurement section, and the strain value acquisition unit includes a first strain gauge and a second strain gauge for the horizontal direction, and a third strain gauge and a fourth strain gauge for the vertical direction; the first strain gauge and the fourth strain gauge are adjacent and vertically arranged as a first strain gauge group, the second strain gauge and the third strain gauge are adjacent and vertically arranged as a second strain gauge group, and the first strain gauge group and the second strain gauge group are respectively arranged on both sides of the offshore wind power tower, forming a group of strain value acquisition units;

[0086] A bridge arm coefficient determination module, used to determine the bridge arm coefficient for the offshore wind power tower;

[0087] A tower elastic modulus and section resistance moment determination module, used to determine the tower elastic modulus and section resistance moment for the offshore wind power tower;

[0088] A measured strain value acquisition module, used to acquire a measured strain value for the target measurement section by using a strain value acquisition unit for the target measurement section;

[0089] A dynamic bending moment value calculation module, used to calculate the dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient;

[0090] A smooth bending moment value determination module, used for performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value;

[0091] A smoothed shear force value calculation module, used for calculating a smoothed shear force value for the offshore wind power tower based on a plurality of smoothed bending moment values ​​for different cross sections;

[0092] A soil resistance value calculation module, used for calculating the soil resistance value for the foundation component based on the smoothed shear force value;

[0093] A test result generating module is used to generate a test result using the smoothed bending moment value, the smoothed shear force value and the soil resistance value.

[0094] The embodiment of the present invention further discloses an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0095] The memory is used to store computer programs;

[0096] The processor is used to implement the method described in the embodiment of the present invention when executing the program stored in the memory.

[0097] The embodiment of the present invention further discloses a computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, enables the processors to execute the method described in the embodiment of the present invention.

[0098] The embodiments of the present invention include the following advantages:

[0099] According to an embodiment of the present invention, a target measurement section for an offshore wind turbine tower is determined; a bridge arm coefficient for the offshore wind turbine tower is determined; an elastic modulus and a section resistance moment of the offshore wind turbine tower are determined; a strain value acquisition unit for the target measurement section is used to acquire a measured strain value for the target measurement section; a dynamic bending moment value for the target measurement section is calculated based on the elastic modulus, the section resistance moment, the measured strain value, and the bridge arm coefficient; the dynamic bending moment value is polished to determine a smooth bending moment value; a smooth shear force value for the offshore wind turbine tower is calculated based on a plurality of smooth bending moment values ​​for different sections; a soil resistance value for a foundation component is calculated based on the smooth shear force value; a test result is generated using the smooth bending moment value, the smooth shear force value, and the soil resistance value; mutation points and discontinuities are eliminated or reduced to make the bending moment curve closer to the actual physical situation, so as to improve the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] Figure 1 It is a flowchart of the steps of a method for obtaining soil resistance of an offshore wind power component provided in an embodiment of the present invention;

[0101] Figure 2 is a structural schematic diagram of a strain value acquisition unit provided in an embodiment of the present invention;

[0102] Figure 3 It is a comparison diagram of a structural bending moment distribution curve along the length before and after smoothing provided in an embodiment of the present invention;

[0103] Figure 4 is a distribution curve of structural shear force / soil resistance along the length after differentiation provided in an embodiment of the present invention;

[0104] Figure 5 It is a structural block diagram of a device for obtaining soil resistance of an offshore wind power component provided in an embodiment of the present invention;

[0105] Figure 6 is a hardware structure block diagram of an electronic device provided in an embodiment of the present invention;

[0106] Figure 7 is a schematic diagram of a computer-readable medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0107] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0108] In practical applications, the differential method is generally used to calculate the shear force curve based on the bending moment distribution. However, when encountering problems such as mutation points, the distribution of variables such as the calculated bending moment and shear force along the length of the structure often does not conform to the actual situation. If processing is required, professional software is often required to perform successive fitting and perform differential calculations after obtaining the fitting curve. The operation process requires a high degree of professionalism and is not easy to use.

[0109] The relevant technologies have the following problems and shortcomings when processing the bending moment and shear force data of offshore wind power steel pipe piles and tower structures:

[0110] 1. The moment curve obtained by strain transformation calculation obtained from actual on-site measurements is generally affected by random factors such as measurement errors contained in the measurement signal. The moment curve is prone to mutations and is not a smooth shape. The direct data processing process of obtaining the shear force curve by differential moment curve and the soil resistance curve by secondary differential moment curve is prone to data errors, which is not conducive to data analysis. At the same time, the unsmooth data may lead to inaccurate analysis results of pile foundation or tower test, thereby leading to inaccurate foundation structure design.

[0111] 2. Mutation points often do not conform to the continuity assumption in physical reality. In actual physical systems, most parameter changes are continuous rather than sudden. The existence of mutation points may lead to unreasonable differential results and fail to correctly reflect the actual physical situation.

[0112] 3. The moment curve converted from the strain data obtained from actual field measurements often has mutation points and discontinuities due to measurement errors and random factors. These mutation points will lead to unreasonable results in the shear force and soil resistance curves obtained by subsequent differential calculations.

[0113] 4. Professional software is required for successive fitting and calculation. The operation is complicated and requires high professional knowledge, which is difficult for ordinary testers to operate.

[0114] 5. When performing differential calculations at mutation points, small errors in measurement and calculation will be magnified, resulting in inaccurate results and affecting data analysis and structural design.

[0115] 6. Data mutation and discontinuity not only affect the differential calculation results, but may also lead to inaccurate analysis results of pile foundation or tower test, thus affecting the rationality and safety of foundation structure design.

[0116] Reference Figure 1 , shows a flowchart of a method for obtaining soil resistance of an offshore wind power component provided in an embodiment of the present invention, which may specifically include the following steps:

[0117] Step S1, determining a target measurement section for an offshore wind turbine tower;

[0118] Step S2, determining a bridge arm coefficient for the offshore wind power tower;

[0119] Step S3, determining the tower elastic modulus and section resistance moment of the offshore wind power tower;

[0120] Step S4, using a strain value acquisition unit for the target measurement section to acquire a measured strain value for the target measurement section;

[0121] Step S5, calculating a dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient;

[0122] Step S6, performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value;

[0123] Step S7, calculating a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections;

[0124] Step S8, calculating the soil resistance value for the foundation component based on the smoothed shear force value;

[0125] Step S9, using the smoothed bending moment value, the smoothed shear force value and the soil resistance value to generate a test result.

[0126] In a specific implementation, the embodiment of the present invention can be applied to an offshore wind power tower bending moment and shear load test system, which can include a strain gauge for obtaining strain values, as well as a signal transmission unit, a signal acquisition unit and a data processing device. Optionally, the method can also be applied to a bending moment and shear load test system for components with a circular cross-section, such as a blade root and a steel pipe pile.

[0127] In practical applications, the offshore wind power components of an offshore wind turbine may include an offshore wind power tower and a foundation component. The offshore wind power tower is used to assemble fan blades, and the foundation component is used to step into the seabed to provide stability for the offshore wind turbine.

[0128] refer to Figure 2 , Figure 2 is a structural schematic diagram of a strain value acquisition unit provided in an embodiment of the present invention;

[0129] The section to be measured is determined as the target measurement section, and strain sensors are symmetrically arranged on both sides of the offshore wind turbine tower; the strain gauges on each side are two single straight gauges, the first strain gauge 101 is perpendicular to and adjacent to the fourth strain gauge 104 in the installation direction, the second strain gauge 102 is perpendicular to and adjacent to the third strain gauge 103 in the installation direction, the first strain gauge 101 and the fourth strain gauge 104 constitute a first strain gauge group, the second strain gauge 102 and the third strain gauge 103 constitute a second strain gauge group, and the first strain gauge group and the second strain gauge group constitute a group of strain value acquisition units;

[0130] Optionally, multiple groups of strain value acquisition units are arranged on the same vertical line, and the arrangement direction of the strain value acquisition units is determined based on the bending direction of the offshore wind turbine tower. For example, the installation direction of the strain value acquisition unit can be determined according to the bending direction 11 of the offshore wind turbine tower 10.

[0131] In practical applications, bending moment and shear force are forces acting inside a component, and they cannot be measured directly. Therefore, it is necessary to calculate the bending moment and shear force by analyzing the internal force balance of the component section. Consider a component with a known stress state, and take two sections on any section. The two sections can be regarded as separate mechanical systems. For these two mechanical systems, the moment balance and shear force balance equations can be established respectively. These two equations are independent because they are obtained from different sections.

[0132] Soil resistance refers to the horizontal resistance value of the foundation soil at different depths below the mud surface acting on the pile foundation. The soil resistance of the steel pipe pile foundation at different depth sections and the deformation of the pile body at that position form a pair of values. The py curve, which is composed of a series of p and y measuring points generated under different horizontal loads, represents the pile-soil interaction spring and can calculate the horizontal bearing capacity and inclination deformation of the steel pipe pile foundation in various soils. The revised and verified py curve can accurately calculate the distribution of the pile body bending moment, soil pressure and pile body displacement, which plays a vital role in the safety of offshore wind turbines. However, the py curves recommended by various specifications currently have various problems, which seriously overestimate or greatly underestimate the soil resistance and initial stiffness around the pile, and need to be predicted and designed through actual measurement verification.

[0133] Therefore, the embodiment of the present invention can determine multiple measurement sections for the offshore wind power tower according to preset intervals.

[0134] After determining the target measurement section, the arm coefficient and material parameters of the offshore wind power tower in the strain value acquisition unit layout scheme can be determined. The material parameters at least include the elastic modulus and section resistance moment of the tower.

[0135] In the process of measuring bending moment and shear force, the bridge arm coefficient, tower elastic modulus and section resistance moment are three important parameters, which have a significant impact on the calculation results.

[0136] The bridge arm coefficient refers to the ratio of the distance from the center of gravity of the tower section to the neutral axis to the section resistance moment. It is a dimensionless quantity. The bridge arm coefficient reflects the influence of the cross-sectional shape on the moment resistance. The larger the bridge arm coefficient, the greater the resistance of the cross-sectional shape to the moment.

[0137] The elastic modulus refers to the unit strain of a material under unit stress. It is a mechanical parameter. The elastic modulus reflects the stiffness of the tower material. The larger the elastic modulus, the greater the stiffness of the material and the stronger its ability to resist deformation.

[0138] Section resistance moment refers to the ratio of the section inertia moment of the section about the neutral axis to the maximum distance from the center of the section. It is a mechanical parameter. Section resistance moment reflects the influence of the section shape on the moment resistance. The larger the section resistance moment, the greater the resistance of the section to the moment.

[0139] The embodiment of the present invention may adopt a strain value acquisition unit for a target measurement section to acquire a measured strain value for the target measurement section.

[0140] Optionally, the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient may be input into Formula 1 to calculate the dynamic bending moment value for the target measurement section, and Formula 1 is:

[0141] M=E·W·ε 测 / A

[0142] Wherein, M is the first dynamic bending moment value, E is the elastic modulus, W is the section resistance moment, ε 测 is the measured strain value, and A is the bridge arm coefficient.

[0143] In specific implementation, if the bending moment obtained from the test is not equal to the vertical spacing distance of the pile body of the offshore wind turbine tower, linear interpolation can be performed first to obtain equidistant inserted bending moment data, and then the multi-point sliding method can be used for polishing to locally correct the dynamic bending moment value of the bending moment, thereby obtaining a smooth bending moment value, and dealing with problems such as data mutation and uneven curves. Then, based on multiple smooth bending moment values ​​for different cross-sections, the smoothed shear force value for the offshore wind turbine tower is calculated, and based on the smoothed shear force value, the soil resistance value for the foundation component is calculated, eliminating or reducing mutation points and discontinuities, making the bending moment curve closer to the actual physical situation, so as to improve the accuracy of the test results.

[0144] Furthermore, differentiation is the process of finding the slope of a curve. A mutation point will cause the slope to change sharply near that point, thereby amplifying the errors in measurement and calculation. Even small noise or errors will be amplified when performing differential calculations at mutation points, resulting in inaccurate results. The original moment curve is processed by the multi-point smooth difference method to reduce or eliminate mutation points. The smoothed curve and differential can solve the problems of large errors in data analysis results and inaccurate distribution curves caused by data mutations, as well as pseudo extreme values ​​or abnormal points caused by mutations. The smoothed data is closer to the actual situation, and the differential results are more reliable.

[0145] Furthermore, high-efficiency analysis can be achieved without the need for any tools, and data processing and analysis results can be obtained directly through manual calculations. This greatly solves the problem that the threshold for data analysis is too high and most testers have difficulty in data analysis.

[0146] Furthermore, a mutation point in the shear force diagram may be mistaken for the actual shear force extreme value, thus affecting the design decision. Smoothing is an indispensable part of both the pre-processing stage of the measured data and the subsequent analysis and design process. Through smoothing, the reliability and accuracy of the data can be improved, ensuring the rationality and safety of the structural analysis and design.

[0147] Furthermore, by efficiently obtaining processed bending moment, shear force and soil resistance data, the operational difficulty and professional threshold are reduced.

[0148] Furthermore, it is suitable for data processing along the entire length of steel pipe piles or towers, providing complete bending moment, shear force and soil resistance distribution results.

[0149] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0150] In an optional embodiment of the present invention, the dynamic bending moment value may be polished by formula zero to determine the smooth bending moment value.

[0151] Formula Zero:

[0152]

[0153] In an optional embodiment of the present invention, the step of performing polishing on the dynamic bending moment value to determine the smooth bending moment value comprises:

[0154] Determine a first initial bending moment value obtained by converting the dynamic bending moment value of the first measured section downward from the top of the wind turbine tower;

[0155] Determine a second initial bending moment value obtained by converting the dynamic bending moment value of a second measuring section downward from the top of the offshore wind power tower;

[0156] Determine a third initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the top of the wind turbine tower;

[0157] Determine a fourth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the top of the cylinder of the offshore wind power tower;

[0158] Determine a fifth initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the top of the cylinder of the offshore wind power tower;

[0159] A smoothing moment value is determined by the first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value, and the fifth initial bending moment value.

[0160] refer to Figure 2 , Figure 2 is a structural schematic diagram of a strain value acquisition unit provided in an embodiment of the present invention;

[0161] The smoothed bending moment at the first measured position 1 from the top of the offshore wind turbine tower and the smoothed moment at the second measured position 2 The smooth bending moment can be calculated using the first and second rows of formula zero, respectively.

[0162] The first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value are input into Formula 2 to calculate a first smoothed bending moment value of a first measuring section downward from the top of the offshore wind tower and a second smoothed bending moment value of a second measuring section downward from the top of the offshore wind tower. Formula 2 is:

[0163]

[0164] in,

[0165] M(x0-2h) is the first initial bending moment value;

[0166] M(x0-h) is the second initial bending moment value;

[0167] M(x0) is the third initial bending moment value;

[0168] M(x0+h) is the fourth initial bending moment value;

[0169] M(x0+2h) is the fifth initial bending moment value;

[0170] is the first smoothed bending moment value;

[0171] is the second smoothed bending moment value.

[0172] In an optional embodiment of the present invention, a sixth initial bending moment value is determined by converting the dynamic bending moment value of a second measuring section upward from the middle section of the offshore wind power tower;

[0173] Determine a seventh initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section upward from the middle section of the offshore wind power tower;

[0174] Determine an eighth initial bending moment value obtained by converting the dynamic bending moment value of the middle section of the offshore wind power tower;

[0175] Determine a ninth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the middle section of the offshore wind power tower;

[0176] Determine a tenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the middle section of the offshore wind power tower;

[0177] A smoothing moment value is determined by the sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value, and the tenth initial bending moment value.

[0178] refer to Figure 2 , Figure 2 is a structural schematic diagram of a strain value acquisition unit provided in an embodiment of the present invention;

[0179] For all measurement sections (positions 3 and 4) between position 2, the second measurement downward from the top of the offshore wind turbine tower, and position 5, the second measurement upward from the bottom of the offshore wind turbine tower, the smoothed bending moment You can use the third line of formula zero for calculation.

[0180] Of course, the above examples are only for illustration, and those skilled in the art can use any number to determine the measurement section. For example, when the measurement section is 100, the measurement section between the second measured position downward from the top of the offshore wind turbine tower and the second measured position upward from the bottom of the offshore wind turbine tower is the 3rd to 98th, and the embodiments of the present invention are not limited to this.

[0181] The sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value and the tenth initial bending moment value are input into Formula 3 to calculate a third smoothed bending moment value of the middle section of the offshore wind power tower. Formula 3 is:

[0182]

[0183] in,

[0184] M(x0-2h) is the sixth initial bending moment value;

[0185] M(x0-h) is the seventh initial bending moment value;

[0186] M(x0) is the eighth initial bending moment value;

[0187] M(x0+h) is the ninth initial bending moment value;

[0188] M(x0+2h) is the tenth initial bending moment value;

[0189] is the third smoothed bending moment value.

[0190] In an optional embodiment of the present invention, it also includes:

[0191] Determine an eleventh initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the bottom end of the cylinder of the offshore wind power tower;

[0192] Determine a twelfth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the bottom end of the offshore wind power tower;

[0193] Determine a thirteenth initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the bottom end of the offshore wind power tower;

[0194] Determine a fourteenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the bottom end of the cylinder of the offshore wind power tower;

[0195] Determine the fifteenth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the bottom of the cylinder of the offshore wind power tower;

[0196] A smoothed bending moment value is determined by the eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value, and the fifteenth initial bending moment value.

[0197] refer to Figure 2 , Figure 2 is a structural schematic diagram of a strain value acquisition unit provided in an embodiment of the present invention;

[0198] The smoothed bending moment at the first measured position 6 from the bottom of the structure and the smoothed moment at position 5 of the second measurement The smooth bending moment is calculated using the fifth and fourth row formulas of formula zero respectively.

[0199] The eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value and the fifteenth initial bending moment value are input into Formula 4 to calculate a fourth smoothed bending moment value of the second measuring section upward from the bottom end of the offshore wind tower and a fifth smoothed bending moment value of the first measuring section upward from the bottom end of the offshore wind tower. Formula 4 is:

[0200]

[0201] in,

[0202] M(x0-2h) is the eleventh initial bending moment value;

[0203] M(x0-h) is the twelfth initial bending moment value;

[0204] M(x0) is the thirteenth initial bending moment value;

[0205] M(x0+h) is the value of the fourteenth initial bending moment;

[0206] M(x0+2h) is the fifteenth initial bending moment value;

[0207] is the fourth smooth bending moment value;

[0208] is the fifth smooth bending moment value.

[0209] refer to Figure 3 , Figure 3 It is a comparison diagram of a structural bending moment distribution curve along the length before and after smoothing provided in an embodiment of the present invention; in an embodiment of the present invention, by obtaining smooth bending moment values ​​for different cross-sections of an offshore wind turbine tower, a bending moment load test on the entire offshore wind turbine tower is achieved, thereby further improving the test efficiency.

[0210] For offshore wind turbine tower structures and steel pipe piles, it is necessary to calculate the structural shear force distribution results. The smoothed bending moment is differentiated once at multiple points using the following calculation method to obtain the pile shear force Q.

[0211] Optionally, the step of calculating a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections comprises:

[0212] Determining the length of the offshore wind tower;

[0213] The length of the offshore wind power tower, the first smoothed bending moment value, the second smoothed bending moment value, the third smoothed bending moment value, the fourth smoothed bending moment value and the fifth smoothed bending moment value are input into Formula 5 to calculate the smoothed shear force value for the offshore wind power tower, and Formula 5 is:

[0214]

[0215] Among them, Q(x0-2h), Q(x0-h), Q(x0), Q(x0+h) and Q(x0+2h) are the smooth shear force values, and is the length of the offshore wind tower.

[0216] Since the smoothed shear force value of the embodiment of the present invention is generated by calculating the smoothed bending moment value, it effectively avoids mutation points and discontinuities, and further improves the accuracy of the load test results.

[0217] In an optional embodiment of the present invention, the bending moment obtained by the test can be inserted at equal distances along the axial direction of the steel pipe pile foundation, and then polished using a multi-point sliding method to make local corrections to the bending moment. The smoothed bending moment is differentiated once to obtain the pile body shear force Q, unit (kN), and the shear force is differentiated once more and divided by the pile body diameter to obtain the soil resistance q, unit (kN / m).

[0218] In a specific implementation, the pile diameter of the offshore wind power tower may be determined;

[0219] Substituting the pile diameter, the length of the offshore wind power tower and the smooth shear force value into Formula 6 to calculate the soil resistance value for the offshore wind power tower, the Formula 6 is:

[0220]

[0221] Wherein, B is the diameter of the pile body.

[0222] Optionally, the key to obtaining the soil resistance q is to obtain the distribution diagram of the soil resistance q that the pile body is subjected to under various levels of load. In the embodiment of the present invention, the soil resistance q can be obtained by the second derivative of the dynamic bending moment value through Formula 7;

[0223] Formula 7:

[0224]

[0225] Formula 7 describes the relationship between the bending moment of the pile of an offshore wind turbine tower and the distributed load acting on the pile.

[0226] M: represents the bending moment of the pile at position x. The bending moment is the internal moment that causes the beam to bend.

[0227] x: represents the coordinate along the length of the pile.

[0228] q: represents the distributed load acting on the pile body, perpendicular to the x-axis.

[0229] B: Pile diameter.

[0230] The physical meaning of Formula 7 is that the curvature of the bending moment curve of the pile body is proportional to the distributed load acting on the pile body. In other words, the greater the distributed load, the greater the bending degree of the pile body.

[0231] refer to Figure 4 , Figure 4 It is a distribution curve of structural shear force / soil resistance along the length after differentiation provided in an embodiment of the present invention; the original bending moment curve is processed by a multi-point smooth difference method to reduce or eliminate mutation points. The smoothed curve and differential can solve the problems of large errors in data analysis results and inaccurate distribution curves caused by data mutations, as well as pseudo extreme values ​​or abnormal points caused by mutations. The smoothed data is closer to the actual situation, and the differential results are more reliable. A mutation point in the shear force diagram may be mistaken for the actual shear force extreme value, thereby affecting the design decision. Whether in the pre-processing stage of the measurement data or in the subsequent analysis and design process, smoothing is an indispensable link. Through smoothing, the reliability and accuracy of the data can be improved to ensure the rationality and safety of structural analysis and design.

[0232] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0233] Reference Figure 5 , shows a structural block diagram of a device for obtaining soil resistance of an offshore wind power component provided in an embodiment of the present invention, which may specifically include the following modules:

[0234] The target measurement section determination module 501 is used to determine the target measurement section for the offshore wind turbine tower; the offshore wind turbine tower bending moment and shear load test system is configured with a strain value acquisition unit for the target measurement section, and the strain value acquisition unit includes a first strain gauge and a second strain gauge for the horizontal direction, and a third strain gauge and a fourth strain gauge for the vertical direction; the first strain gauge and the fourth strain gauge are adjacent to each other and arranged vertically as a first strain gauge group, the second strain gauge and the third strain gauge are adjacent to each other and arranged vertically as a second strain gauge group, and the first strain gauge group and the second strain gauge group are respectively arranged on both sides of the offshore wind turbine tower to form a group of strain value acquisition units;

[0235] A bridge arm coefficient determination module 502 is used to determine the bridge arm coefficient for the offshore wind power tower;

[0236] A tower elastic modulus and section resistance moment determination module 503, used to determine the tower elastic modulus and section resistance moment for the offshore wind power tower;

[0237] A measured strain value acquisition module 504, configured to acquire a measured strain value for the target measurement section using a strain value acquisition unit for the target measurement section;

[0238] A dynamic bending moment value calculation module 505 is used to calculate the dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient;

[0239] A smoothed bending moment value determination module 506, configured to perform a polishing process on the dynamic bending moment value to determine a smoothed bending moment value;

[0240] A smoothed shear force value calculation module 507, configured to calculate a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections;

[0241] A soil resistance value calculation module 508, configured to calculate a soil resistance value for a foundation component based on the smoothed shear force value;

[0242] The test result generating module 509 is used to generate a test result using the smoothed bending moment value, the smoothed shear force value and the soil resistance value.

[0243] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0244] In addition, an embodiment of the present invention further provides an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned embodiment of the method for obtaining the soil resistance of offshore wind power components are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0245] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the above-mentioned method for obtaining soil resistance of offshore wind power components is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0246] Figure 6A schematic diagram of the hardware structure of an electronic device for implementing various embodiments of the present invention.

[0247] The electronic device 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that Figure 6 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. In the embodiments of the present invention, the electronic device includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted terminal, a wearable device, and a pedometer.

[0248] It should be understood that in the embodiment of the present invention, the radio frequency unit 601 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving downlink data from the base station, it is sent to the processor 610 for processing; in addition, uplink data is sent to the base station. Generally, the radio frequency unit 601 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 601 can also communicate with the network and other devices through a wireless communication system.

[0249] The electronic device provides users with wireless broadband Internet access through the network module 602, such as helping users to send and receive emails, browse web pages, and access streaming media.

[0250] The audio output unit 603 can convert the audio data received by the RF unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output it as sound. Moreover, the audio output unit 603 can also provide audio output related to a specific function performed by the electronic device 600 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, etc.

[0251] The input unit 604 is used to receive audio or video signals. The input unit 604 may include a graphics processor (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 606. The image frame processed by the graphics processor 6041 can be stored in the memory 609 (or other storage medium) or sent via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 601 in the case of a telephone call mode.

[0252] The electronic device 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 6061 and / or the backlight when the electronic device 600 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used to identify the posture of the electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 605 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

[0253] The display unit 606 is used to display information input by the user or information provided to the user. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0254] The user input unit 607 can be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the electronic device. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 6071 or near the touch panel 6071 using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 6071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 610, receives the command sent by the processor 610 and executes it. In addition, the touch panel 6071 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic waves. In addition to the touch panel 6071, the user input unit 607 may also include other input devices 6072. Specifically, other input devices 6072 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0255] Enter In another embodiment, the touch panel 6071 can be covered on the display panel 6061. When the touch panel 6071 detects a touch operation on or near it, it is transmitted to the processor 610 to determine the type of touch event. Then, the processor 610 provides corresponding visual output on the display panel 6061 according to the type of touch event. Figure 6 In the figure, the touch panel 6071 and the display panel 6061 are used as two independent components to realize the input and output functions of the electronic device. However, in some embodiments, the touch panel 6071 and the display panel 6061 can be integrated to realize the input and output functions of the electronic device, which is not limited here.

[0256] The interface unit 608 is an interface for connecting an external device to the electronic device 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic device 600 or may be used to transmit data between the electronic device 600 and an external device.

[0257] The memory 609 can be used to store software programs and various data. The memory 609 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 609 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0258] The processor 610 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 609 and calling data stored in the memory 609, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 610.

[0259] The electronic device 600 may also include a power supply 611 (such as a battery) for supplying power to each component. Preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0260] In addition, the electronic device 600 includes some functional modules not shown, which will not be described in detail here.

[0261] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0262] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods 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 invention, 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, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0263] like Figure 7 As shown, in another embodiment provided by the present invention, a computer-readable storage medium 701 is also provided, in which instructions are stored. When the computer-readable storage medium 701 is run on a computer, the computer executes the method for obtaining the soil resistance of offshore wind power components described in the above embodiment.

[0264] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

[0265] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0266] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0267] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0268] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0269] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0270] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0271] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for obtaining soil resistance of offshore wind power components, characterized in that: The method is applied to an offshore wind power tower bending moment and shear load test system, including: Determine a target measurement section for an offshore wind turbine tower; the offshore wind turbine tower bending moment and shear load test system is configured with a strain value acquisition unit for the target measurement section, the strain value acquisition unit includes a first strain gauge and a second strain gauge for the horizontal direction, and a third strain gauge and a fourth strain gauge for the vertical direction; the first strain gauge and the fourth strain gauge are adjacent to each other and arranged vertically as a first strain gauge group, the second strain gauge and the third strain gauge are adjacent to each other and arranged vertically as a second strain gauge group, the first strain gauge group and the second strain gauge group are respectively arranged on both sides of the offshore wind turbine tower, forming a group of strain value acquisition units; Determining a bridge arm coefficient for the offshore wind turbine tower; Determining a tower elastic modulus and a section resistance moment for the offshore wind power tower; Using a strain value acquisition unit for the target measurement section to acquire a measured strain value for the target measurement section; Calculating a dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value, and the bridge arm coefficient; Performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value; Calculating a smoothed shear force value for the offshore wind turbine tower based on a plurality of smoothed bending moment values ​​for different cross sections; Calculating a soil resistance value for the foundation member based on the smoothed shear force value; The smoothed bending moment value, the smoothed shear force value and the soil resistance value are used to generate a test result.

2. The method according to claim 1, characterized in that A plurality of groups of the strain value acquisition units are arranged on the same vertical line, and the arrangement direction of the strain value acquisition units is determined based on the bending direction of the offshore wind power tower.

3. The method according to claim 1, characterized in that The step of calculating the dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient comprises: The elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient are input into Formula 1 to calculate the dynamic bending moment value for the target measurement section. The Formula 1 is: ME·W·ε 测 / AM Wherein, M is the first dynamic bending moment value, E is the elastic modulus, W is the section resistance moment, ε 测 is the measured strain value, and A is the bridge arm coefficient.

4. The method according to claim 3, characterized in that The step of performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value comprises: Determine a first initial bending moment value obtained by converting the dynamic bending moment value of the first measured section downward from the top of the wind turbine tower; Determine a second initial bending moment value obtained by converting the dynamic bending moment value of a second measuring section downward from the top of the offshore wind power tower; Determine a third initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the top of the wind turbine tower; Determine the fourth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the top of the cylinder of the offshore wind power tower; Determine a fifth initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the top of the cylinder of the offshore wind power tower; A smoothing moment value is determined by the first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value.

5. The method according to claim 4, characterized in that The step of determining a smoothed bending moment value by using the first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value comprises: The first initial bending moment value, the second initial bending moment value, the third initial bending moment value, the fourth initial bending moment value and the fifth initial bending moment value are input into Formula 2 to calculate a first smoothed bending moment value of a first measuring section downward from the top of the offshore wind tower and a second smoothed bending moment value of a second measuring section downward from the top of the offshore wind tower. Formula 2 is: in, M(x0-2h) is the first initial bending moment value; M(x0-h) is the second initial bending moment value; M(x0) is the third initial bending moment value; M(x0+h) is the fourth initial bending moment value; M(x0+2h) is the fifth initial bending moment value; is the first smoothed bending moment value; is the second smoothed bending moment value.

6. The method according to claim 5, characterized in that Also includes: Determine a sixth initial bending moment value obtained by converting the dynamic bending moment value of a second measuring section upward from the middle section of the offshore wind power tower; Determine the seventh initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section upward from the middle section of the offshore wind power tower; Determine an eighth initial bending moment value obtained by converting the dynamic bending moment value of the middle section of the offshore wind power tower; Determine a ninth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the middle section of the offshore wind power tower; Determine a tenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the middle section of the offshore wind power tower; A smoothing moment value is determined by the sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value, and the tenth initial bending moment value.

7. The method according to claim 6, characterized in that The step of determining a smoothed bending moment value by using the sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value and the tenth initial bending moment value comprises: The sixth initial bending moment value, the seventh initial bending moment value, the eighth initial bending moment value, the ninth initial bending moment value and the tenth initial bending moment value are input into Formula 3 to calculate a third smoothed bending moment value of the middle section of the offshore wind power tower. Formula 3 is: in, M(x0-2h) is the sixth initial bending moment value; M(x0-h) is the seventh initial bending moment value; M(x0) is the eighth initial bending moment value; M(x0+h) is the ninth initial bending moment value; M(x0+2h) is the tenth initial bending moment value; is the third smoothed bending moment value.

8. The method according to claim 7, characterized in that Also includes: Determine an eleventh initial bending moment value obtained by converting the dynamic bending moment value of the fifth measuring section downward from the bottom end of the cylinder of the offshore wind power tower; Determine a twelfth initial bending moment value obtained by converting the dynamic bending moment value of the fourth measuring section downward from the bottom end of the offshore wind power tower; Determine a thirteenth initial bending moment value obtained by converting the dynamic bending moment value of the third measuring section downward from the bottom end of the offshore wind power tower; Determine a fourteenth initial bending moment value obtained by converting the dynamic bending moment value of the second measuring section downward from the bottom end of the cylinder of the offshore wind power tower; Determine the fifteenth initial bending moment value obtained by converting the dynamic bending moment value of the first measuring section downward from the bottom end of the offshore wind power tower; A smoothed bending moment value is determined by the eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value, and the fifteenth initial bending moment value.

9. The method according to claim 8, characterized in that The step of determining a smoothed bending moment value by using the eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value and the fifteenth initial bending moment value comprises: The eleventh initial bending moment value, the twelfth initial bending moment value, the thirteenth initial bending moment value, the fourteenth initial bending moment value and the fifteenth initial bending moment value are input into Formula 4 to calculate a fourth smoothed bending moment value of the second measuring section upward from the bottom end of the offshore wind tower and a fifth smoothed bending moment value of the first measuring section upward from the bottom end of the offshore wind tower. Formula 4 is: in, M(x0-2h) is the eleventh initial bending moment value; M(x0-h) is the twelfth initial bending moment value; M(x0) is the thirteenth initial bending moment value; M(x0+h) is the value of the fourteenth initial bending moment; M(x0+2h) is the fifteenth initial bending moment value; is the fourth smooth bending moment value; is the fifth smooth bending moment value.

10. The method according to claim 9, characterized in that The step of calculating the smoothed shear force value for the offshore wind power tower based on a plurality of smoothed bending moment values ​​for different cross sections comprises: Determining the length of the offshore wind tower; The length of the offshore wind power tower, the first smoothed bending moment value, the second smoothed bending moment value, the third smoothed bending moment value, the fourth smoothed bending moment value and the fifth smoothed bending moment value are input into Formula 5 to calculate the smoothed shear force value for the offshore wind power tower, and Formula 5 is: Among them, Q(x0-2h), Q(x0-h), Q(x0), Q(x0+h) and Q(x0+2h) are the smooth shear force values, and is the length of the offshore wind tower.

11. The method according to claim 10, characterized in that The step of calculating the soil resistance value for the foundation component based on the smoothed shear force value comprises: Determining the pile diameter of the offshore wind power tower; Substituting the pile diameter, the length of the offshore wind power tower and the smooth shear force value into Formula 6 to calculate the soil resistance value for the offshore wind power tower, the Formula 6 is: Wherein, B is the diameter of the pile body.

12. The method according to claim 10, characterized in that Also includes: Based on the pile diameter, a distribution diagram of the soil resistance value is obtained by the second differential of the dynamic bending moment value.

13. A device for obtaining soil resistance of an offshore wind power component, characterized in that: The device is applied to the offshore wind power tower bending moment and shear load test system, including: A target measurement section determination module is used to determine a target measurement section for an offshore wind power tower; the offshore wind power tower bending moment and shear load test system is configured with a strain value acquisition unit for the target measurement section, and the strain value acquisition unit includes a first strain gauge and a second strain gauge for the horizontal direction, and a third strain gauge and a fourth strain gauge for the vertical direction; the first strain gauge and the fourth strain gauge are adjacent and vertically arranged as a first strain gauge group, the second strain gauge and the third strain gauge are adjacent and vertically arranged as a second strain gauge group, and the first strain gauge group and the second strain gauge group are respectively arranged on both sides of the offshore wind power tower to form a group of strain value acquisition units; A bridge arm coefficient determination module, used to determine the bridge arm coefficient for the offshore wind power tower; A tower elastic modulus and section resistance moment determination module, used to determine the tower elastic modulus and section resistance moment for the offshore wind power tower; A measured strain value acquisition module, used to acquire the measured strain value for the target measurement section by using the strain value acquisition unit for the target measurement section; A dynamic bending moment value calculation module, used to calculate the dynamic bending moment value for the target measurement section based on the elastic modulus, the section resistance moment, the measured strain value and the bridge arm coefficient; A smooth bending moment value determination module, used for performing a polishing process on the dynamic bending moment value to determine a smooth bending moment value; A smoothed shear force value calculation module, used for calculating a smoothed shear force value for the offshore wind power tower based on a plurality of smoothed bending moment values ​​for different cross sections; A soil resistance value calculation module, used for calculating the soil resistance value for the foundation component based on the smoothed shear force value; A test result generating module is used to generate a test result using the smoothed bending moment value, the smoothed shear force value and the soil resistance value.

14. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; The memory is used to store computer programs; The processor is used to implement the method according to any one of claims 1 to 12 when executing the program stored in the memory.

15. A computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, cause the processors to perform the method according to any one of claims 1 to 12.

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