Axial load test method, device, equipment and storage medium

Abstract

The present invention discloses an axial load testing method, which is applied to an axial load testing system. The axial load testing system comprises a strain acquisition device, a welding terminal and a strain gauge module. The strain gauge module comprises at least two groups of strain gauges, each group of strain gauges comprises two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and at least two groups of strain gauges are symmetrical structures. The strain acquisition device is connected to each strain gauge through a welding terminal, and a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method. The method comprises: when it is detected that the axial load testing system is connected to a component to be tested, obtaining measured strain data corresponding to the strain gauge module through the strain acquisition device; determining target strain data of the component to be tested according to the measured strain data corresponding to the strain gauge module; and generating an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of load testing, and in particular to an axial load testing method, device, equipment and 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 transferred to the jacket foundation through the tower. Therefore, the actual load size at the connection between the jacket and the tower is crucial to the design.

[0003] In the related art, when testing the tower load, the load value is usually obtained by arranging strain sensors on the tower surface. The strain gauges of the strain sensors are easily affected by temperature changes, tension and bending moment, which affect the accuracy of the torque test results, resulting in the inability to measure accurate load values ​​for subsequent processing and research. Summary of the invention

[0004] The present invention provides an axial load testing method, device, equipment and storage medium, aiming to at least solve the technical problem in the prior art that the marine ranch cages are inconvenient to transport due to the large main size of the marine ranch cages.

[0005] In a first aspect, the present invention provides an axial load testing system, the axial load testing system comprising a strain acquisition device, a welding terminal and a strain gauge module, the strain gauge module comprising at least two groups of strain gauges, each group of strain gauges comprising two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and the welding terminal and the strain gauge module form a target bridge circuit through a preset connection method, and the method comprises:

[0006] When it is detected that the axial load test system is connected to the component to be tested, the strain data corresponding to the strain gauge module is acquired through the strain acquisition device;

[0007] Determining target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module;

[0008] The axial load corresponding to the component to be tested is generated according to the target strain data and pre-acquired parameters of the component to be tested.

[0009] Optionally, the strain gauge module includes at least two groups of strain gauges, the at least two groups of strain gauges include a first strain gauge group and a second strain gauge group, the first strain gauge group includes a first strain gauge and a second strain gauge, the first strain gauge and the second strain gauge are perpendicular to each other, the second strain gauge group includes a third strain gauge and a fourth strain gauge, the third strain gauge and the fourth strain gauge are perpendicular to each other, and the first strain gauge group and the second strain gauge group are symmetrical based on the axial load direction.

[0010] Optionally, the direction of the resistance wire corresponding to the first strain gauge and the third strain gauge is vertically downward; the direction of the resistance wire corresponding to the second strain gauge and the fourth strain gauge is perpendicular to the axial load direction.

[0011] Optionally, a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method.

[0012] Optionally, determining target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module includes:

[0013] Obtaining a bridge arm coefficient corresponding to the target bridge circuit;

[0014] The target strain data of the component to be measured is generated according to the bridge arm coefficient and the measured strain data corresponding to the strain gauge module.

[0015] Optionally, each of the strain gauges corresponds to two terminal heads respectively, the welding terminals include a first welding terminal, a second welding terminal and a third welding terminal, each of the welding terminals includes at least one welding point, and the strain acquisition device is connected to each of the strain gauges through the welding terminals, including:

[0016] The welding terminal and the strain gauge module form a target bridge circuit through a preset connection method;

[0017] The strain collection device is connected to the welding terminal via a wire.

[0018] Optionally, the welding terminal and the strain gauge module are connected in a preset manner to form a target bridge circuit, which includes:

[0019] The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit.

[0020] Optionally, the welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit, which includes:

[0021] Connecting each terminal corresponding to the first strain gauge and the second strain gauge to the first welding terminal in sequence;

[0022] Connecting each terminal head corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal in sequence;

[0023] Connecting a first terminal of the first strain gauge and a second terminal of the second strain gauge to a first welding point of the third welding terminal through a wire;

[0024] Connecting the second terminal of the first strain gauge and the first terminal of the fourth strain gauge to the second welding point of the third welding terminal through a wire;

[0025] Connecting the first terminal of the third strain gauge and the second terminal of the fourth strain gauge to the third welding point of the third welding terminal through a wire;

[0026] The second terminal of the third strain gauge and the first terminal of the second strain gauge are connected to the fourth welding point of the third welding terminal through a wire to obtain a target bridge circuit.

[0027] Optionally, the strain collection device is connected to the welding terminal via a wire, comprising:

[0028] The third welding terminal is connected to the strain acquisition device through a wire, wherein the strain acquisition device is used to collect the measured strain data based on a preset sampling frequency.

[0029] Optionally, the third welding terminal is connected to the strain acquisition device via a wire, including:

[0030] The first welding point of the third welding terminal is positively connected to the excitation voltage of the strain acquisition device through a wire;

[0031] The second welding point of the third welding terminal is positively connected to the signal of the strain acquisition device through a wire;

[0032] The third welding point of the third welding terminal is negatively connected to the excitation voltage of the strain acquisition device through a wire;

[0033] The fourth welding point of the third welding terminal is connected to the signal negative of the strain acquisition device through a wire.

[0034] Optionally, when it is detected that the axial load test system is connected to the component to be tested, obtaining the measured strain data corresponding to the strain gauge module by the strain acquisition device includes:

[0035] Controlling the connection between the strain gauge module and the component to be measured;

[0036] The measured strain data corresponding to the strain gauge module is obtained through the strain acquisition device.

[0037] Optionally, the axial load corresponding to the component to be tested is generated according to the target strain data and the pre-acquired parameters of the component to be tested by the following formula:

[0038]

[0039] Wherein, Fz is the axial load corresponding to the component to be tested, A is the bridge arm coefficient, the value corresponding to A is 2(1+υ), ε is the target strain data of the component to be tested, ε 测 is the measured strain data corresponding to the strain gauge module, σ is the stress, υ is the Poisson's ratio of the elastic element of the component to be measured, E is the elastic modulus of the component to be measured, and S is the cross-sectional area of ​​the component to be measured.

[0040] In a second aspect, the present invention provides a horizontal load testing device, which is applied to an axial load testing system. The axial load testing system includes a strain acquisition device, a welding terminal and a strain gauge module. The strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, and the directions corresponding to the two strain gauges are vertical directions. The at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and the device includes:

[0041] an acquisition module, configured to acquire measured strain data corresponding to the strain gauge module through the strain acquisition device when it is detected that the axial load test system is connected to the component to be tested;

[0042] A determination module, used to determine target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module;

[0043] A generating module is used to generate an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested.

[0044] In a third aspect of implementation, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, an axial load test method as described above is implemented.

[0045] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the axial load test method as described above is implemented.

[0046] In an embodiment of the present invention, an axial load testing method is disclosed, which is applied to an axial load testing system. The axial load testing system includes a strain acquisition device, a welding terminal and a strain gauge module. The strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method. The method includes: when it is detected that the axial load testing system is connected to the component to be tested, the strain gauge is obtained through the strain acquisition device. module; determine the target strain data of the component to be tested according to the measured strain data corresponding to the strain gauge module; generate the axial load corresponding to the component to be tested according to the target strain data and the pre-acquired parameters of the component to be tested; that is, in the embodiment of the present application, the target bridge circuit formed by the welding terminal and the strain gauge module through a preset connection method is used as an axial strain sensor. After the tower to be tested and the horizontal load test system are connected, the corresponding strain gauge voltage resistance change can be measured based on different measurement interfaces, and then the target strain data can be obtained. The output voltage can be increased through the target bridge circuit, eliminating the influence of tensile and compressive deformation on the bending deformation measurement, and obtaining accurate tower structure bending strain. And through the target bridge circuit and the strain gauge layout in the axial strain sensor, the mutual temperature compensation effect of the strain gauge can be formed, avoiding the additional influence of environmental temperature changes on the test results of the strain gauge body, and obtaining the real stress and strain information of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0048] Figure 1 A flowchart of the steps of the axial load testing method provided in an embodiment of the present invention;

[0049] Figure 2 A device block diagram of an axial load testing device provided in an embodiment of the present invention;

[0050] Figure 3 A schematic diagram of the structure of a communication device provided in an embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the layout of the axial load measurement sensor provided in an embodiment of the present invention;

[0052] Figure 5 Schematic diagram of the connection of the strain gauge circuit provided in the embodiment of the present invention.

[0053] Reference numerals:

[0054] 1-wind turbine tower, 100-axial load direction, 101-first strain gauge, 102-second strain gauge, 103-third strain gauge, 104-fourth strain gauge, 200-first measuring section, 201-second measuring section, 301-first welding terminal, 302-second welding terminal, 303-third welding terminal, 304-first welding point, 305-second welding point, 306-third welding point, 307-fourth welding point. DETAILED DESCRIPTION

[0055] Reference Figure 1 , showing the steps of the horizontal load test method provided by the embodiment of the present invention Figure 1 , applied to an axial load testing system, the axial load testing system includes a strain acquisition device, a welding terminal and a strain gauge module, the strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and the welding terminal and the strain gauge module form a target bridge circuit through a preset connection method.

[0056] It should be noted that, in an embodiment of the present application, the axial load testing method is applied to an axial load testing system, which includes a strain acquisition device, a welding terminal and a strain gauge module, wherein the strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures.

[0057] The strain acquisition device is connected to each of the strain gauges via the welding terminal, and a target bridge circuit is formed between the welding terminal and the strain gauge module via a preset connection method.

[0058] Specifically, Figure 4 As shown, horizontal strain sensors are symmetrically arranged on both sides of the tower. The strain gauges on each side of the horizontal strain sensor are two single straight gauges, that is, a group, and each group of strain gauges includes two strain gauges.

[0059] Further, the strain gauge module includes at least two groups of strain gauges, the at least two groups of strain gauges include a first strain gauge group and a second strain gauge group, the first strain gauge group includes a first strain gauge and a second strain gauge, the first strain gauge and the second strain gauge are perpendicular to each other, the second strain gauge group includes a third strain gauge and a fourth strain gauge, the third strain gauge and the fourth strain gauge are perpendicular to each other, and the first strain gauge group and the second strain gauge group are symmetrical based on the axial load direction.

[0060] Further, the direction of the resistance wire corresponding to the first strain gauge and the third strain gauge is vertically downward; the direction of the resistance wire corresponding to the second strain gauge and the fourth strain gauge is perpendicular to the axial load direction.

[0061] It should be noted that, in the embodiment of the present application, the measurement cross section of components such as the tower is determined, and strain sensors are symmetrically arranged on both sides of the tower;

[0062] Among them, the load measurement method in this application is not only applicable to the measurement cross-section of components such as towers, but also to structures with symmetrical cross-sections such as circular and square, such as towers, blade roots, steel pipe piles and other components.

[0063] There are two single straight strain gauges on each side. The strain gauges R1 and R2 are installed perpendicularly and closely to each other. R1, R2 and R3 and R4 on the opposite side form a group to measure the dynamic axial load Fz of the section.

[0064] The strain gauges of the two sections are aligned along the same vertical line, and the orientation of the strain sensor of the measurement section is independent of the wind direction. The strain gauges R1 and R3 are arranged on opposite sides, with the resistance wires pointing vertically downward and overlapping along the axial load direction. The strain gauges R2 and R4 are arranged on opposite sides, with the resistance wires pointing vertically to the axial load and adjacent to R1 and R3 respectively.

[0065] The strain gauge installation process is as follows: specifically, the inner wall of the tower is polished until the silver steel body is exposed. The polishing range should be larger than the area required for the strain gauge to be installed. Then, a polishing machine is used to polish the steel surface to facilitate the strain gauge to fit tightly. According to the installation plan, a steel needle is used to mark and locate the position, and it is cleaned with alcohol. Subsequently, the strain gauge is glued to the inner wall of the tower in turn, and the welding terminal is installed. Finally, the surface of the strain gauge is protected to prevent the strain gauge from being damaged, and the installation work is completed.

[0066] In addition, as offshore wind turbine towers and other components are oversized, in order to measure the axial load more accurately, multiple sets of strain sensors can be evenly and symmetrically arranged around the tower at 360 degrees to obtain the axial load in all directions. Finally, the dynamic test average value of multiple sets of axial forces is used as the representative axial force of the tower.

[0067] In addition, refer to Figure 4 , 5 ,according to Figure 4 The figure shows the layout of the axial load measurement sensor. The tower load is generally pressure. Assuming the pressure in the diagram, a force analysis is first performed to determine the positive and negative strain of the strain gauge. It is now defined that the strain gauge is subjected to tensile strain as the positive direction and compressive strain as the negative direction. The strain value of strain gauge R1 is negative, strain gauge R2 is positive, strain gauge R3 is negative, and strain gauge R4 is positive.

[0068] Furthermore, a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method.

[0069] Further, each of the strain gauges corresponds to two terminal heads respectively, the welding terminals include a first welding terminal, a second welding terminal and a third welding terminal, each of the welding terminals includes at least one welding point, and the strain acquisition device is connected to each of the strain gauges through the welding terminals, including:

[0070] The welding terminal and the strain gauge module form a target bridge circuit through a preset connection method;

[0071] The strain collection device is connected to the welding terminal via a wire.

[0072] Furthermore, the target bridge circuit is formed by a preset connection method between the welding terminal and the strain gauge module, including:

[0073] The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit.

[0074] Furthermore, the welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit, which includes:

[0075] Connecting each terminal corresponding to the first strain gauge and the second strain gauge to the first welding terminal in sequence;

[0076] Connecting each terminal head corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal in sequence;

[0077] Connecting a first terminal of the first strain gauge and a second terminal of the second strain gauge to a first welding point of the third welding terminal through a wire;

[0078] Connecting the second terminal of the first strain gauge and the first terminal of the fourth strain gauge to the second welding point of the third welding terminal through a wire;

[0079] Connecting the first terminal of the third strain gauge and the second terminal of the fourth strain gauge to the third welding point of the third welding terminal through a wire;

[0080] The second terminal of the third strain gauge and the first terminal of the second strain gauge are connected to the fourth welding point of the third welding terminal through a wire to obtain a target bridge circuit.

[0081] Furthermore, the strain collection device is connected to the welding terminal via a wire and includes:

[0082] The third welding terminal is connected to the strain acquisition device through a wire, wherein the strain acquisition device is used to collect the measured strain data based on a preset sampling frequency.

[0083] It should be noted that, in the embodiment of the present application, each strain gauge has two terminals. Each terminal of the strain gauges R1 and R2 is connected to the first welding terminal 301 in sequence. The same operation is performed to connect R3 and R4 to the first welding terminal 302.

[0084] Connecting the first terminal of the strain gauge R1 and the second terminal of the strain gauge R2 to the first welding point 304 of the third welding terminal 303 through a wire;

[0085] Connect the second terminal of the strain gauge R1 and the first terminal of the strain gauge R4 to the second welding point 305 of the third welding terminal 303 through a wire;

[0086] Connect the first terminal of the strain gauge R3 and the second terminal of the strain gauge R4 to the third welding point 306 of the third welding terminal 303 through a wire;

[0087] The second terminal of the strain gauge R3 and the first terminal of the strain gauge R2 are connected to the fourth welding point 307 of the third welding terminal 303 through a wire. At this point, the line connection of the strain sensor is completed.

[0088] Data acquisition connection method: Connect the third welding terminal 303 to the strain acquisition device, set the sampling frequency, and perform strain data acquisition.

[0089] Furthermore, the third welding terminal is connected to the strain acquisition device via a wire, including:

[0090] The first welding point of the third welding terminal is positively connected to the excitation voltage of the strain acquisition device through a wire;

[0091] The second welding point of the third welding terminal is positively connected to the signal of the strain acquisition device through a wire;

[0092] The third welding point of the third welding terminal is negatively connected to the excitation voltage of the strain acquisition device through a wire;

[0093] The fourth welding point of the third welding terminal is connected to the signal negative of the strain acquisition device through a wire.

[0094] It should be noted that in the embodiments of the present application, for specific examples, please refer to Figure 5 , the wires can be connected in 4-wire or 6-wire system.

[0095] For the 4-wire system, the first welding point of the third welding terminal 303 is connected to a wire, which is positively connected to the excitation voltage of the collector, the second welding point is connected to a wire, which is positively connected to the signal of the collector, the third welding point is connected to a wire, which is negatively connected to the excitation voltage of the collector, and the fourth welding point is connected to a wire, which is negatively connected to the signal of the collector.

[0096] For the 6-wire system, the first welding point of the third welding terminal 303 is connected to two wires, which are respectively connected to the positive excitation voltage and the positive sensing lead of the collector, the second welding point is connected to one wire, which is connected to the positive signal of the collector, the third welding point is connected to two wires, which are respectively connected to the negative excitation voltage and the negative sensing lead of the collector, and the fourth welding point is connected to one wire, which is connected to the negative signal of the collector.

[0097] Step 401, when it is detected that the axial load test system is connected to the component to be tested, obtaining the measured strain data corresponding to the strain gauge module through the strain acquisition device;

[0098] Further, when it is detected that the axial load test system is connected to the component to be tested, obtaining the measured strain data corresponding to the strain gauge module through the strain acquisition device includes:

[0099] Controlling the connection between the strain gauge module and the component to be measured;

[0100] The measured strain data corresponding to the strain gauge module is obtained through the strain acquisition device.

[0101] It should be noted that, in the embodiment of the present application, firstly, it is ensured that the strain gauge module is correctly connected to the component to be measured, so as to ensure that the strain gauge can accurately sense the slight deformation of the component to be measured when subjected to force.

[0102] After confirming that the connection is correct, start the strain acquisition device and collect the measured strain data output by the strain gauge module in real time through the preset circuit connection (such as the target bridge circuit). These data reflect the actual strain of the component to be measured when it is subjected to axial load.

[0103] Through the above steps, the strain information of the component to be tested under stress state can be accurately obtained, providing basic data for subsequent load calculation and analysis.

[0104] Step 402, determining target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module;

[0105] Further, determining the target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module includes:

[0106] Obtaining a bridge arm coefficient corresponding to the target bridge circuit;

[0107] The target strain data of the component to be measured is generated according to the bridge arm coefficient and the measured strain data corresponding to the strain gauge module.

[0108] It should be noted that in the embodiment of the present application, first, the bridge arm coefficients of the target bridge circuit are obtained. These coefficients are pre-set and used to correct and convert the original measured strain data output by the strain gauge module to ensure the accuracy and reliability of the data. The bridge arm coefficients are usually related to the configuration of the bridge and the characteristics of the strain gauge.

[0109] The acquired bridge arm coefficient is combined with the measured strain data of the strain gauge module to perform data processing and calculation to generate the target strain data of the component to be measured.

[0110] Through the above steps, key information can be extracted from the original measured strain data to generate accurate target strain data, providing accurate basic data for subsequent axial load calculations.

[0111] Step 403: Generate an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested.

[0112] Furthermore, the axial load corresponding to the component to be tested is generated according to the target strain data and the pre-acquired parameters of the component to be tested by the following formula:

[0113]

[0114] Wherein, Fz is the axial load corresponding to the component to be tested, A is the bridge arm coefficient, the value corresponding to A is 2(1+υ), ε is the target strain data of the component to be tested, ε 测 is the measured strain data corresponding to the strain gauge module, σ is the stress, υ is the Poisson's ratio of the elastic element of the component to be measured, E is the elastic modulus of the component to be measured, and S is the cross-sectional area of ​​the component to be measured.

[0115] Furthermore, before performing the calculation according to Formula 1, the target strain data ε of the component to be measured and the stress σ are determined according to Formulas 2 and 3 below, thereby calculating the axial load.

[0116] ε=ε 测 / A(Formula 2)

[0117] σ=εE (Formula 3)

[0118] Among them, A is the bridge arm coefficient, which is taken as 2(1+υ); ε is the true strain of the strain gauge; is the direct indication reading strain value of the strain gauge, is the stress; υ is the Poisson's ratio of the elastic element being measured, E is the elastic modulus of the tower, and S is the cross-sectional area of ​​the tower.

[0119] The circuit connection method in the target bridge circuit constructed in the present application can increase the output voltage by 2 (1 + υ) times. At the same time, due to the averaging effect, the influence of bending on the tensile and compressive deformation measurement is eliminated, and accurate tensile and compressive strains of the tower structure are obtained. In addition, based on the circuit connection method and the preceding strain sensor arrangement scheme, a mutual temperature compensation effect of strain gauges can be formed to avoid the additional influence of ambient temperature changes on the test results of the strain gauge body, and obtain the real stress and strain information of the structure.

[0120] In an embodiment of the present invention, an axial load testing method is disclosed, which is applied to an axial load testing system. The axial load testing system includes a strain acquisition device, a welding terminal and a strain gauge module. The strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method. The method includes: when it is detected that the axial load testing system is connected to the component to be tested, the strain gauge is obtained through the strain acquisition device. module; determine the target strain data of the component to be tested according to the measured strain data corresponding to the strain gauge module; generate the axial load corresponding to the component to be tested according to the target strain data and the pre-acquired parameters of the component to be tested; that is, in the embodiment of the present application, the target bridge circuit formed by the welding terminal and the strain gauge module through a preset connection method is used as an axial strain sensor. After the tower to be tested and the horizontal load test system are connected, the corresponding strain gauge voltage resistance change can be measured based on different measurement interfaces, and then the target strain data can be obtained. The output voltage can be increased through the target bridge circuit, eliminating the influence of tensile and compressive deformation on the bending deformation measurement, and obtaining accurate tower structure bending strain. And through the target bridge circuit and the strain gauge layout in the axial strain sensor, the mutual temperature compensation effect of the strain gauge can be formed, avoiding the additional influence of environmental temperature changes on the test results of the strain gauge body, and obtaining the real stress and strain information of the structure.

[0121] Reference Figure 2 , Figure 2 A device block diagram of a horizontal load testing device is provided, characterized in that it is applied to a horizontal load testing system, the horizontal load testing system comprises a strain acquisition device and a horizontal strain sensor, wherein the horizontal strain sensor comprises a welding terminal and a strain gauge module, the strain gauge module comprises at least two groups of strain gauges, each group of strain gauges comprises two strain gauges, the two strain gauges are arranged in parallel, and the at least two groups of strain gauges are arranged symmetrically, and the device comprises:

[0122] An acquisition module 501 is used to acquire the measured strain data corresponding to the strain gauge module through the strain acquisition device when it is detected that the axial load test system is connected to the component to be tested;

[0123] A determination module 502 is used to determine target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module;

[0124] The generating module 503 is used to generate the axial load corresponding to the component to be tested according to the target strain data and the pre-acquired parameters of the component to be tested.

[0125] In the embodiment of the present application, the target bridge circuit formed by the welding terminal and the strain gauge module through the preset connection method is used as the axial strain sensor. After the tower to be tested is connected to the horizontal load test system, the corresponding strain gauge voltage resistance change can be measured based on different measurement interfaces to obtain the target strain data. The output voltage can be increased through the target bridge circuit to eliminate the influence of tensile and compressive deformation on the bending deformation measurement, and obtain accurate tower structure bending strain. And through the target bridge circuit and the layout of the strain gauges in the axial strain sensor, the mutual temperature compensation effect of the strain gauges can be formed to avoid the additional influence of the ambient temperature change on the test results of the strain gauge body, and obtain the real stress and strain information of the structure.

[0126] The embodiment of the present invention also provides a communication device, such as Figure 3 As shown, it includes a processor 601, a communication interface 602, a memory 603 and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other through the communication bus 604.

[0127] Memory 603, used for storing computer programs;

[0128] The processor 601, when used to execute the program stored in the memory 603, can implement the following steps:

[0129] When it is detected that the horizontal load test system is connected to the tower to be tested, determining a first measurement section and a second measurement section corresponding to the tower to be tested, wherein the first measurement section and the second measurement section are at a preset distance from each other;

[0130] Acquire, by the strain acquisition device, a first bending moment corresponding to the first measurement section and a second bending moment corresponding to the second measurement section;

[0131] The horizontal shear load of the tower to be tested is generated according to the first bending moment, the second bending moment and the preset distance.

[0132] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits together, which are all well known in the art, so this article will not further describe them. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor can be transmitted on a wired medium or on a wireless medium through an antenna. Further, the antenna also receives data and transmits the data to the processor. The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory can be used to store data used by the processor when performing operations.

[0133] The communication bus mentioned in the above terminal can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0134] The communication interface is used for communication between the above terminal and other devices.

[0135] The memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0136] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0137] In another embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores instructions. When the instructions are executed on a computer, the computer executes the data downloading method described in any one of the above embodiments.

[0138] In another embodiment of the present invention, a computer program product including instructions is provided. When the computer program product is run on a computer, the computer executes the data downloading method described in any one of the above embodiments.

[0139] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk SolidState Disk (SSD)), etc.

[0140] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0141] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system 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.

[0142] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An axial load testing method, characterized in that: Applied to an axial load test system, the axial load test system includes a strain acquisition device, a welding terminal and a strain gauge module, the strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and the welding terminal and the strain gauge module form a target bridge circuit through a preset connection method, and the method includes: When it is detected that the axial load test system is connected to the component to be tested, the strain data corresponding to the strain gauge module is acquired through the strain acquisition device; Determining target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module; Generating an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested; The strain gauge module includes at least two groups of strain gauges, the at least two groups of strain gauges include a first strain gauge group and a second strain gauge group, the first strain gauge group includes a first strain gauge and a second strain gauge, and the second strain gauge group includes a third strain gauge and a fourth strain gauge; Each of the strain gauges corresponds to two terminal heads respectively, the welding terminals include a first welding terminal, a second welding terminal and a third welding terminal, each of the welding terminals includes at least one welding point, and the strain acquisition device is connected to each of the strain gauges through the welding terminals, including: The welding terminal and the strain gauge module form a target bridge circuit through a preset connection method; The strain collection device is connected to the welding terminal via a wire; The target bridge circuit formed by the preset connection between the welding terminal and the strain gauge module includes: The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit; The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit including: Connecting each terminal corresponding to the first strain gauge and the second strain gauge to the first welding terminal in sequence; Connecting each terminal head corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal in sequence; Connecting a first terminal of the first strain gauge and a second terminal of the second strain gauge to a first welding point of the third welding terminal through a wire; Connecting the second terminal of the first strain gauge and the first terminal of the fourth strain gauge to the second welding point of the third welding terminal through a wire; Connecting the first terminal of the third strain gauge and the second terminal of the fourth strain gauge to the third welding point of the third welding terminal through a wire; Connecting the second terminal of the third strain gauge and the first terminal of the second strain gauge to the fourth welding point of the third welding terminal through a wire to obtain a target bridge circuit; The strain collection device is connected to the welding terminal through a wire and includes: The third welding terminal is connected to the strain acquisition device through a wire, wherein the strain acquisition device is used to collect the measured strain data based on a preset sampling frequency; The third welding terminal is connected to the strain acquisition device through a wire, comprising: The first welding point of the third welding terminal is positively connected to the excitation voltage of the strain acquisition device through a wire; The second welding point of the third welding terminal is positively connected to the signal of the strain acquisition device through a wire; The third welding point of the third welding terminal is negatively connected to the excitation voltage of the strain acquisition device through a wire; The fourth welding point of the third welding terminal is connected to the signal negative of the strain acquisition device through a wire.

2. The method according to claim 1, characterized in that: The first strain gauge and the second strain gauge are perpendicular to each other, the third strain gauge and the fourth strain gauge are perpendicular to each other, and the first strain gauge group and the second strain gauge group are symmetrical based on the axial load direction.

3. The method according to claim 2, characterized in that The direction of the resistance wire corresponding to the first strain gauge and the third strain gauge is vertically downward; the direction of the resistance wire corresponding to the second strain gauge and the fourth strain gauge is perpendicular to the axial load direction.

4. The method according to claim 1, characterized in that: The welding terminal and the strain gauge module form a target bridge circuit through a preset connection method.

5. The method according to claim 4, characterized in that Determining the target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module includes: Obtaining a bridge arm coefficient corresponding to the target bridge circuit; The target strain data of the component to be measured is generated according to the bridge arm coefficient and the measured strain data corresponding to the strain gauge module.

6. The method according to claim 1, characterized in that When it is detected that the axial load test system is connected to the component to be tested, obtaining the measured strain data corresponding to the strain gauge module through the strain acquisition device includes: Controlling the connection between the strain gauge module and the component to be measured; The measured strain data corresponding to the strain gauge module is obtained through the strain acquisition device.

7. The method according to claim 1, characterized in that The axial load corresponding to the component to be tested is generated according to the target strain data and the pre-acquired parameters of the component to be tested by the following formula: Wherein, Fz is the axial load corresponding to the component to be tested, A is the bridge arm coefficient, the value corresponding to A is 2 (1+υ), ε is the target strain data of the component to be tested, is the measured strain data corresponding to the strain gauge module, is the stress, υ is the Poisson's ratio of the elastic element of the component to be measured, E is the elastic modulus of the component to be measured, and S is the cross-sectional area of ​​the component to be measured.

8. An axial load testing device, characterized in that: Applied to an axial load test system, the axial load test system includes a strain acquisition device, a welding terminal and a strain gauge module, the strain gauge module includes at least two groups of strain gauges, each group of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and the at least two groups of strain gauges are symmetrical structures; the strain acquisition device is connected to each of the strain gauges through the welding terminal, and the device includes: an acquisition module, configured to acquire measured strain data corresponding to the strain gauge module through the strain acquisition device when it is detected that the axial load test system is connected to the component to be tested; A determination module, used to determine target strain data of the component to be measured according to the measured strain data corresponding to the strain gauge module; A generating module, used for generating an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested; The strain gauge module includes at least two groups of strain gauges, the at least two groups of strain gauges include a first strain gauge group and a second strain gauge group, the first strain gauge group includes a first strain gauge and a second strain gauge, and the second strain gauge group includes a third strain gauge and a fourth strain gauge; Each of the strain gauges corresponds to two terminal heads respectively, the welding terminals include a first welding terminal, a second welding terminal and a third welding terminal, each of the welding terminals includes at least one welding point, and the strain acquisition device is connected to each of the strain gauges through the welding terminals, including: The welding terminal and the strain gauge module form a target bridge circuit through a preset connection method; The strain collection device is connected to the welding terminal via a wire; The target bridge circuit formed by the preset connection between the welding terminal and the strain gauge module includes: The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit; The welding terminal is connected to the wiring head corresponding to the strain gauge through the welding point to form a target bridge circuit including: Connecting each terminal corresponding to the first strain gauge and the second strain gauge to the first welding terminal in sequence; Connecting each terminal head corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal in sequence; Connecting a first terminal of the first strain gauge and a second terminal of the second strain gauge to a first welding point of the third welding terminal through a wire; Connecting the second terminal of the first strain gauge and the first terminal of the fourth strain gauge to the second welding point of the third welding terminal through a wire; Connecting the first terminal of the third strain gauge and the second terminal of the fourth strain gauge to the third welding point of the third welding terminal through a wire; Connecting the second terminal of the third strain gauge and the first terminal of the second strain gauge to the fourth welding point of the third welding terminal through a wire to obtain a target bridge circuit; The strain collection device is connected to the welding terminal through a wire and includes: The third welding terminal is connected to the strain acquisition device through a wire, wherein the strain acquisition device is used to collect the measured strain data based on a preset sampling frequency; The third welding terminal is connected to the strain acquisition device through a wire, comprising: The first welding point of the third welding terminal is positively connected to the excitation voltage of the strain acquisition device through a wire; The second welding point of the third welding terminal is positively connected to the signal of the strain acquisition device through a wire; The third welding point of the third welding terminal is negatively connected to the excitation voltage of the strain acquisition device through a wire; The fourth welding point of the third welding terminal is connected to the signal negative of the strain acquisition device through a wire.

9. A communication device, characterized in that: include: A transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; The processor is used to read the program in the memory to implement the axial load testing method as described in any one of claims 1-7.

10. A readable storage medium for storing a program, characterized in that: When the program is executed by a processor, the axial load testing method as described in any one of claims 1 to 7 is implemented.

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