Axial load testing method and apparatus, device and storage medium

Abstract

To provide an axial load testing method, a device, an apparatus and a storage medium for solving a transportation problem caused by a large main dimension of a marine farm net cage.SOLUTION: The axial load testing system comprises a strain collecting device, a welding terminal and a strain gauge module, wherein the strain gauge module comprises at least two sets of strain gauges. Each group is composed of two strain gages, sensing directions of the two strain gages are perpendicular, and the multiple groups of strain gages form a symmetrical structure. The strain collection device is connected to each strain gauge through a welding terminal, and forms a bridge circuit in a predetermined connection form. In the testing method, (1) after it is detected that the axial load testing system is connected to a component under test, (2) measured strain data based on a strain gauge module is acquired by a strain collection device, (3) target strain data is determined based on the measured strain data, and (4) a corresponding axial load is calculated based on a pre-acquired parameter of the component under test.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of load testing, and more particularly to an axial load testing method, device, equipment and storage medium. [Background technology]

[0002] An offshore wind power tower is a load transfer structure between the wind turbine foundation and the upper tower frame. In an actual marine environment, the load from the upper part of the wind turbine is transferred to the tower and then to the jacket foundation via the tower. Therefore, the magnitude of the actual load at the connection point between the jacket and the tower is very important for the design.

[0003] In related art, when testing tower loads, it is common to obtain load values ​​by placing strain sensors on the surface of the tower. However, the strain gauges of the strain sensors are easily affected by temperature changes, tensile force, and bending moment, which affects the accuracy of the torque test results and makes it impossible to measure accurate load values ​​that can be used in subsequent processing studies. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides an axial load testing method, device, equipment and storage medium, and aims to at least solve the problem of the inconvenience of transporting mariculture net cages in the prior art due to the large main dimensions of the mariculture net cages. [Means for solving the problem]

[0005] In a first aspect, the present invention provides a method applicable to an axial load testing system, the axial load testing system including a strain collecting device, a welding terminal, and a strain gauge module, the strain gauge module including at least two sets of strain gauges, each set including two strain gauges, a direction corresponding to the two strain gauges being perpendicular, the at least two sets of strain gauges having a symmetrical structure, the strain collecting device being connected to each of the strain gauges via the welding terminal, and a target bridge circuit being formed between the welding terminal and the strain gauge module by a predetermined connection configuration, the method including: acquiring measured strain data corresponding to the strain gauge module with the strain collector when the axial load test system detects that the member under test is connected to the member; determining target strain data for the component under test based on measured strain data corresponding to the strain gage modules; and generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test.

[0006] Optionally, the strain gauge module includes at least two sets of strain gauges, the at least two sets of strain gauges including a first strain gauge set and a second strain gauge set, the first strain gauge set including a first strain gauge and a second strain gauge, the first strain gauge and the second strain gauge being perpendicular to each other, the second strain gauge set including a third strain gauge and a fourth strain gauge, the third strain gauge and the fourth strain gauge being perpendicular to each other, and the first strain gauge set and the second strain gauge set being symmetrical based on an axial load direction.

[0007] Optionally, the direction of the electrical resistance wires corresponding to the first strain gauge and the third strain gauge is vertically downward, and the direction of the electrical resistance wires corresponding to the second strain gauge and the fourth strain gauge is perpendicular to the axial load direction.

[0008] Optionally, a target bridge circuit is formed between the welding terminal and the strain gauge module through a predetermined connection configuration.

[0009] Optionally, said step of determining target strain data for said member under test based on measured strain data corresponding to said strain gauge modules comprises: obtaining bridge arm coefficients corresponding to the target bridge circuit; generating target strain data for the member under test based on the bridge arm coefficients and measured strain data corresponding to the strain gage modules.

[0010] Optionally, each of the strain gauges corresponds to two terminals, 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 collector is connected to each of the strain gauges via the welding terminals; forming a target bridge circuit between the welding terminal and the strain gauge module in a predetermined connection configuration; and connecting the strain collector to the welding lug via a lead wire.

[0011] Optionally, the step of forming a target bridge circuit between the welding terminal and the strain gauge module by a predetermined connection topology includes: The method includes the step of connecting the welding terminals to terminals corresponding to the strain gauges via welding points to form a target bridge circuit.

[0012] Optionally, the step of connecting the welding terminals to terminals corresponding to the strain gauges via welding points to form a target bridge circuit comprises: sequentially connecting terminals corresponding to the first strain gauge and the second strain gauge to the first welding terminal; sequentially connecting terminals corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal; 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 via lead wires; connecting a second terminal of the first strain gauge and a first terminal of the fourth strain gauge to a second welding point of the third welding terminal via lead wires; connecting a first terminal of the third strain gauge and a second terminal of the fourth strain gauge to a third welding point of the third welding terminal via lead wires; and connecting the second terminal of the third strain gauge and the first terminal of the second strain gauge to a fourth welding point of the third welding terminal via lead wires to obtain a target bridge circuit.

[0013] Optionally, the step of connecting the strain collector to the welding terminal via a lead wire comprises: The step of connecting the third welding terminal to the strain collecting device via a lead wire, the strain collecting device being used to collect the measured strain data based on a preset sampling frequency, is included.

[0014] Optionally, the step of connecting the third welding terminal to the strain collector via a lead wire comprises: positively connecting a first welding point of the third welding terminal to an excitation voltage of a strain collector via a lead wire; connecting a second welding point of the third welding terminal to a signal of a strain collecting device in a positive polarity via a lead wire; connecting a third welding point of the third welding terminal to a negative polarity of an excitation voltage of a strain collector via a lead wire; and connecting a fourth welding point of the third welding terminal to a signal of a strain collector with a negative polarity via a lead wire.

[0015] Optionally, when the axial load testing system detects that it is connected to a member under test, the step of acquiring measured strain data corresponding to the strain gauge module with the strain collector comprises: controlling the strain gage module to couple to the component under test; and acquiring measured strain data corresponding to the strain gauge module with the strain collector.

[0016] Optionally, generating an axial load corresponding to the member under test based on the target strain data and previously acquired parameters of the member under test is generated by the following equation: JPEG2026015202000002.jpg19156where, F z is the axial load corresponding to the member under test, A is the bridge arm coefficient, the value corresponding to A is 2(1+ν), ε is the target strain data of the member under test, and ε 測定 is the measured strain data corresponding to the strain gauge module, σ is the stress, ν is the Poisson's ratio of the elastic element of the member under test, E is the elastic modulus of the member under test, and S is the cross-sectional area of ​​the member under test.

[0017] In a second aspect, the present invention provides a horizontal load testing apparatus applicable to an axial load testing system, the axial load testing system including a strain collecting device, a welding terminal, and a strain gauge module, the strain gauge module including at least two sets of strain gauges, each set including two strain gauges, a direction corresponding to the two strain gauges being vertical, the at least two sets of strain gauges being symmetrical to each other, the strain collecting device being connected to each of the strain gauges via the welding terminal, and the apparatus including: an acquisition module for acquiring measured strain data corresponding to the strain gauge module by the strain collector when the axial load testing system detects that the member under test is connected to the member; a determination module for determining target strain data for the component under test based on measured strain data corresponding to the strain gauge modules; and a generation module for generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test.

[0018] In a third aspect, 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, the electronic device realizing any one of the axial load testing methods described above when the processor executes the computer program.

[0019] In a fourth aspect, the present invention further provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any one of the axial load testing methods described above. [Effects of the Invention]

[0020] In an embodiment of the present invention, an axial load test method applicable to an axial load test system is disclosed, the axial load test system includes a strain collector, a welding terminal, and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are perpendicular, the at least two sets of strain gauges have a symmetrical structure, the strain collector 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 by a predetermined connection form, the method includes the steps of: when the axial load test system detects that it is connected to a member to be tested, acquiring measured strain data corresponding to the strain gauge module by the strain collector; determining target strain data for the component under test based on the measured strain data corresponding to the module; and generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test. In this embodiment, a target bridge circuit, configured with a predetermined connection between the welding lugs and the strain gauge modules, serves as the axial strain sensor. After the tower under test is connected to the horizontal load test system, the voltage and resistance changes of the corresponding strain gauges can be measured based on different measurement interfaces to obtain target strain data. The target bridge circuit improves the output voltage, eliminates the influence of tensile and compressive deformation on bending deformation measurement, and accurately obtains bending strain of the tower structure. The layout of the strain gauges in the target bridge circuit and the axial strain sensor creates a mutual temperature compensation effect between the strain gauges, avoiding the additional influence of environmental temperature changes on the test results of the strain gauge itself, and obtaining true stress-strain information of the structure. [Brief explanation of the drawings]

[0021] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces drawings that need to be used to describe the embodiments or the prior art. [Figure 1] 1 is a flowchart of steps of an axial load testing method according to an embodiment of the present invention. [Figure 2] 1 is a block diagram of an axial load testing device according to an embodiment of the present invention. [Figure 3] 1 is a schematic diagram of the structure of a communication device according to an embodiment of the present invention; [Figure 4] 1 is a schematic diagram of a layout of an axial load measuring sensor according to an embodiment of the present invention; [Figure 5] FIG. 2 is a schematic diagram of strain gauge circuit connections according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Referring to FIG. 1, a flowchart 1 of the steps of a horizontal load testing method according to an embodiment of the present invention is shown, which is applied to an axial load testing system, the axial load testing system includes a strain collecting device, a welding terminal, and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the direction corresponding to the two strain gauges is vertical, the at least two sets of strain gauges have a symmetrical structure, the strain collecting 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 through a predetermined connection form.

[0023] In the embodiments of the present application, the axial load test method is applied to an axial load test system, which includes a strain collection device, a welding terminal, and a strain gauge module, wherein the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are vertical, and the at least two sets of strain gauges have a symmetrical structure.

[0024] The strain collecting device is connected to each of the strain gauges via the welding terminals, and a target bridge circuit is formed between the welding terminals and the strain gauge modules in a predetermined connection configuration.

[0025] Specifically, as shown in Figure 4, horizontal strain sensors are arranged symmetrically on both sides of the tower, and the strain gauges on each side of the horizontal strain sensors are two single straight gauges, i.e., one set, and each set of strain gauges contains two strain gauges.

[0026] Further, the strain gauge module includes at least two sets of strain gauges, the at least two sets of strain gauges including a first strain gauge set and a second strain gauge set, the first strain gauge set including a first strain gauge and a second strain gauge, the first strain gauge and the second strain gauge being perpendicular to each other, the second strain gauge set including a third strain gauge and a fourth strain gauge, the third strain gauge and the fourth strain gauge being perpendicular to each other, and the first strain gauge set and the second strain gauge set being symmetrical based on the axial load direction.

[0027] Furthermore, the direction of the electrical resistance wires corresponding to the first strain gauge and the third strain gauge is vertically downward, and the direction of the electrical resistance wires corresponding to the second strain gauge and the fourth strain gauge is perpendicular to the axial load direction.

[0028] In the embodiment of the present application, a measurement cross section of a member such as a tower is determined, and strain sensors are symmetrically arranged on both sides of the tower. Here, the load measurement method in this application is applicable not only to the measurement cross section of a member such as a tower, but also to structures with symmetrical cross sections, such as circular or rectangular, such as members of a tower, a blade base, a steel pipe pile, etc.

[0029] The strain gauges on each side are two single straight gauges. The strain gauges R1 and R2 are installed vertically and adjacent to each other. R1, R2 and the opposite side R3, R4 form a set, and the dynamic axial load F z Measure.

[0030] The strain gauges on the two sections are aligned along the same vertical line, and the layout orientation of the strain sensors on the measurement section is independent of wind direction. The strain gauges R1 and R3 are arranged on opposite sides, with their electrical resistance lines pointing vertically downward and overlapping in the direction of the axial load. The two strain gauges R2 and R4 are arranged on opposite sides, with their electrical resistance lines pointing perpendicular to the axial load and adjacent to R1 and R3, respectively.

[0031] The strain gauge installation process involves polishing the inner wall of the tower until the silver steel body is exposed, with the polished area being larger than the area required for the strain gauge. Then, a buffing machine is used to buff the surface of the steel so that the strain gauge is tightly attached. According to the installation plan, a steel needle is used to draw a line at the appropriate position, which is then cleaned with alcohol. The strain gauge is then attached to the inner wall of the tower in sequence with adhesive, and a welding terminal is attached. Finally, the surface of the strain gauge is protected to prevent damage to the strain gauge, completing the installation process.

[0032] In addition, since components such as offshore wind power towers are extremely large, the strain sensor placement method involves symmetrically placing multiple sets of strain sensors at uniform intervals around the entire 360-degree circumference of the tower to obtain the axial load in each direction, so that the axial load in each direction can be obtained.Finally, the dynamic test average value of the multiple sets of axial forces can be used as the representative axial force of the tower.

[0033] Also, refer to Figures 4 and 5. As shown in Figure 4, this is a schematic diagram of the layout of an axial load measurement sensor. The tower load is generally pressure. Based on the pressure in the schematic diagram, a force-bearing analysis is first performed to determine whether the strain of the strain gauge is positive or negative. If the strain gauge is defined as being subjected to tensile strain in the positive direction and compressive strain in 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.

[0034] Furthermore, a target bridge circuit is formed between the welding terminals and the strain gauge module in a predetermined connection configuration.

[0035] Furthermore, each of the strain gauges corresponds to two terminals, 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 collecting device is connected to each of the strain gauges via the welding terminals. forming a target bridge circuit between the welding terminal and the strain gauge module in a predetermined connection configuration; and connecting the strain collector to the welding lug via a lead wire.

[0036] Furthermore, the step of forming a target bridge circuit between the welding terminal and the strain gauge module in a predetermined connection configuration includes: The method includes the step of connecting the welding terminals to terminals corresponding to the strain gauges via welding points to form a target bridge circuit.

[0037] Furthermore, the step of connecting the welding terminals to the terminals corresponding to the strain gauges via welding points to form a target bridge circuit includes: sequentially connecting terminals corresponding to the first strain gauge and the second strain gauge to the first welding terminal; sequentially connecting terminals corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal; 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 via lead wires; connecting a second terminal of the first strain gauge and a first terminal of the fourth strain gauge to a second welding point of the third welding terminal via lead wires; connecting a first terminal of the third strain gauge and a second terminal of the fourth strain gauge to a third welding point of the third welding terminal via lead wires; and connecting the second terminal of the third strain gauge and the first terminal of the second strain gauge to a fourth welding point of the third welding terminal via lead wires to obtain a target bridge circuit.

[0038] Furthermore, the step of connecting the strain collector to the welding terminal via a lead wire further comprises: The step of connecting the third welding terminal to the strain collecting device via a lead wire, the strain collecting device being used to collect the measured strain data based on a preset sampling frequency, is included.

[0039] In the present embodiment, each strain gauge has two terminals. The terminals of the strain gauges R1 and R2 are connected to the first welding terminal 301 in sequence, and then R3 and R4 are connected to the first welding terminal 302 in a similar manner. The first terminal of the strain gauge R1 and the second terminal of the strain gauge R2 are connected to the first welding point 304 of the third welding terminal 303 via lead wires; The second terminal of the strain gauge R1 and the first terminal of the strain gauge R4 are connected to the second welding point 305 of the third welding terminal 303 via lead wires; The first terminal of the strain gauge R3 and the second terminal of the strain gauge R4 are connected to the third welding point 306 of the third welding terminal 303 via lead wires; The second terminal of the strain gauge R3 and the first terminal of the strain gauge R2 are connected via lead wires to the fourth welding point 307 of the third welding terminal 303. By this time, the wiring connection of the strain sensors is completed.

[0040] In the data collection connection method, the third welding terminal 303 is connected to a strain collection device, a sampling frequency is set, and strain data is collected.

[0041] Furthermore, the step of connecting the third welding terminal to the strain collector via a lead wire further comprises: positively connecting a first welding point of the third welding terminal to an excitation voltage of a strain collector via a lead wire; connecting a second welding point of the third welding terminal to a signal of a strain collecting device in a positive polarity via a lead wire; connecting a third welding point of the third welding terminal to a negative polarity of an excitation voltage of a strain collector via a lead wire; and connecting a fourth welding point of the third welding terminal to a signal of a strain collector with a negative polarity via a lead wire.

[0042] In the embodiment of the present application, specifically, see FIG. 5, and the lead wires can be connected using a four-wire or six-wire system.

[0043] For the four-wire system, the first welding point of the third welding terminal 303 is connected to one lead wire and is connected to the excitation voltage of the collector with positive polarity, the second welding point is connected to one lead wire and is connected to the signal of the collector with positive polarity, the third welding point is connected to one lead wire and is connected to the excitation voltage of the collector with negative polarity, and the fourth welding point is connected to one lead wire and is connected to the signal of the collector with negative polarity.

[0044] For the six-wire system, the first welding point of the third welding terminal 303 is connected to two lead wires, which are respectively connected to the positive pole of the excitation voltage of the collecting device and the positive polarity of the sensor lead wire; the second welding point is connected to one lead wire, which is respectively connected to the positive polarity of the signal of the collecting device; the third welding point is connected to two lead wires, which are respectively connected to the negative pole of the excitation voltage of the collecting device and the negative polarity of the induction lead wire; and the fourth welding point is connected to one lead wire, which is respectively connected to the negative polarity of the signal of the collecting device.

[0045] In step 401, when the axial load testing system detects that the member to be tested is connected, the strain collecting device acquires measured strain data corresponding to the strain gauge module; Furthermore, when the axial load test system detects that the member under test is connected, the step of acquiring measured strain data corresponding to the strain gauge module by the strain collector further comprises: controlling the strain gage module to couple to the component under test; and acquiring measured strain data corresponding to the strain gauge module with the strain collector.

[0046] In the embodiment of the present application, first, an accurate connection between the strain gauge module and the member under test is ensured to ensure that the strain gauge can accurately detect minute deformations when the member under test is subjected to force.

[0047] After checking that the connections are correct, start the strain collection device and use a predetermined circuit connection (e.g., target bridge circuit) to collect the measured strain data output from the strain gauge module in real time. These data reflect the actual strain state of the component under test when subjected to an axial load.

[0048] The above steps allow accurate strain information of the component under test under force to be obtained, providing the basis for subsequent load calculations and analysis.

[0049] In step 402, determining target strain data for the component under test based on measured strain data corresponding to the strain gage modules; Further, the step of determining target strain data for the component under test based on measured strain data corresponding to the strain gage modules further comprises: obtaining bridge arm coefficients corresponding to the target bridge circuit; generating target strain data for the member under test based on the bridge arm coefficients and measured strain data corresponding to the strain gage modules.

[0050] In the embodiment of the present application, the bridge arm coefficients of the target bridge circuit are first obtained. These coefficients are preset and are used to correct and convert the original measured strain data output from the strain gauge module to ensure the accuracy and reliability of the data. The bridge arm coefficients are usually related to the bridge configuration and the characteristics of the strain gauges.

[0051] The obtained bridge arm coefficients are used in combination with the measured strain data of the strain gauge module to perform data processing and calculations to generate target strain data for the member under test.

[0052] The above steps allow key information to be extracted from the original measured strain data to generate accurate target strain data, providing accurate basis data for subsequent axial load calculations.

[0053] In step 403, an axial load corresponding to the component under test is generated based on the target strain data and previously acquired parameters of the component under test.

[0054] Furthermore, the step of generating an axial load corresponding to the member under test based on the target strain data and previously acquired parameters of the member under test is performed using the following equation: JPEG2026015202000003.jpg20170where, F z is the axial load corresponding to the member under test, A is the bridge arm coefficient, the value corresponding to A is 2(1+ν), ε is the target strain data of the member under test, and ε 測定 is the measured strain data corresponding to the strain gauge module, σ is the stress, ν is the Poisson's ratio of the elastic element of the member under test, E is the elastic modulus of the member under test, and S is the cross-sectional area of ​​the member under test.

[0055] Furthermore, before performing the calculation of Equation 1, the target strain data ε and stress σ of the member to be tested are determined using Equations 2 and 3 below, and the axial load is calculated based on these data. ε=ε 測定 / A (formula 2) σ = εE (Equation 3) where A is the bridge arm coefficient, 2(1+ν), ε is the true strain of the strain gauge, which is the strain value directly indicated by the strain gauge, and is the stress, ν is the Poisson's ratio of the elastic member under test, E is the tower elastic modulus, and S is the tower cross-sectional area.

[0056] The circuit connection method in the target bridge circuit constructed in this application can improve the output voltage by 2(1+ν) times and has an averaging effect, thereby eliminating the influence of bending on the measurement of tensile and compressive deformation and accurately obtaining the tensile and compressive strain of the tower structure. Furthermore, based on the circuit connection method and the arrangement of the front-end strain sensor, a mutual temperature compensation effect of the strain gauges is formed, which prevents the additional influence of environmental temperature changes on the test results of the strain gauge itself and allows true stress and strain information of the structure to be obtained.

[0057] In an embodiment of the present invention, an axial load test method applicable to an axial load test system is disclosed, the axial load test system includes a strain collector, a welding terminal, and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are perpendicular, the at least two sets of strain gauges have a symmetrical structure, the strain collector 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 by a predetermined connection form, the method includes the steps of: when the axial load test system detects that it is connected to a member to be tested, acquiring measured strain data corresponding to the strain gauge module by the strain collector; determining target strain data for the component under test based on the measured strain data corresponding to the module; and generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test. In this embodiment, a target bridge circuit, configured with a predetermined connection between the welding lugs and the strain gauge modules, serves as the axial strain sensor. After the tower under test is connected to the horizontal load test system, the voltage and resistance changes of the corresponding strain gauges can be measured based on different measurement interfaces to obtain target strain data. The target bridge circuit improves the output voltage, eliminates the influence of tensile and compressive deformation on bending deformation measurement, and accurately obtains bending strain of the tower structure. The layout of the strain gauges in the target bridge circuit and the axial strain sensor creates a mutual temperature compensation effect between the strain gauges, avoiding the additional influence of environmental temperature changes on the test results of the strain gauge itself, and obtaining true stress-strain information of the structure.

[0058] Referring to Fig. 2, Fig. 2 provides a block diagram of a horizontal load testing device, which is characterized as follows: Applied to a horizontal load testing system, the horizontal load testing system includes a strain collecting device and a horizontal strain sensor, wherein the horizontal strain sensor includes a welding terminal and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the two strain gauges are installed in parallel, and the at least two sets of strain gauges are installed symmetrically, the device: an acquisition module 501 for acquiring measured strain data corresponding to the strain gauge module by the strain collector when the axial load testing system detects that the member under test is connected; a determination module 502 for determining target strain data for the component under test based on measured strain data corresponding to the strain gauge modules; and a generation module 503 for generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test.

[0059] In the present embodiment, a target bridge circuit, which is configured with a predetermined connection between the welding terminals and the strain gauge module, is used as the axial strain sensor. After the tower under test is connected to the horizontal load test system, the voltage and resistance changes of the corresponding strain gauges can be measured using different measurement interfaces to obtain target strain data. The target bridge circuit improves the output voltage, eliminates the influence of tensile and compressive deformation on bending deformation measurement, and accurately obtains the bending strain of the tower structure. The layout of the strain gauges in the target bridge circuit and the axial strain sensor creates a mutual temperature compensation effect between the strain gauges, avoiding the additional influence of environmental temperature changes on the test results of the strain gauge itself, and obtaining true stress and strain information of the structure.

[0060] An embodiment of the present invention further provides a communication device, as shown in FIG. 3, including 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 complete communication between each other through the communication bus 604; The memory 603 is used to store computer programs. When the processor 601 executes a program stored in the memory 603, determining a first measurement section and a second measurement section corresponding to the tower cylinder under test when the horizontal load measurement system detects that the horizontal load measurement system is connected to the tower cylinder under test, the first measurement section and the second measurement section being a predetermined distance apart; acquiring a first bending moment corresponding to the first measurement cross section and a second bending moment corresponding to the second measurement cross section using the strain collector; generating a horizontal shear load on the tower under test based on the first bending moment, the second bending moment, and the predetermined distance.

[0061] Here, the memory and processor are connected in the form of a bus, which may include any number of interconnected buses and bridges, connecting various circuits of one or more processors and the memory. The bus may also connect various other circuits, such as peripheral devices, regulators, and power control circuits, all of which are well known to those skilled in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and a transceiver. The transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor can be transmitted over a wired medium or wirelessly via an antenna, which receives the data and transmits it to the processor. The processor is responsible for bus management and general processing and may also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Meanwhile, the memory may be used to store data used by the processor when performing operations.

[0062] The communication bus mentioned in the above terminal may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of illustration, the buses are shown in bold in the figure, but this does not indicate that there is only one bus or only one type of bus.

[0063] The communication interface is used for communication between the terminal and other devices.

[0064] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk memory. Optionally, the memory may be a storage device remote from the at least one processor.

[0065] The processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc., and may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.

[0066] In yet another embodiment of the present invention, there is further provided a computer-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the axial load testing method according to any one of the previous embodiments.

[0067] In yet another embodiment according to the present invention, there is further provided a computer program product comprising instructions which, when executed on a computer, cause the computer to carry out the axial load testing method according to any one of the previous embodiments.

[0068] The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, they may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer commands. When the computer program commands are loaded into a computer and executed, they generate the flow or function described in the embodiments of the present invention in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer commands may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer commands may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.). The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device such as a server or data center that includes one or more available media. The available medium may be a magnetic medium (for example, a soft disk, a hard disk, or a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

[0069] It should be noted that, in this specification, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another and do not necessarily require or imply the existence of any actual relationship or order between those entities or operations. Furthermore, the terms "comprise," "comprises," or any other variant thereof are intended to include a non-exclusive inclusion, whereby a process, method, article, or device comprising a set of elements not only includes those elements, but also includes other elements not expressly listed, or further elements inherent in such process, method, article, or device. Absent more limitations, elements qualified by the phrase "comprises ..." do not exclude the presence of other identical elements in the process, method, article, or device comprising said elements.

[0070] Each embodiment in this specification will be described using a related form, and identical or similar parts between the embodiments may be referred to, and the focus of each embodiment will be on the differences from other embodiments. In particular, since the system embodiments are basically similar to the method embodiments, they will be briefly described, and for related parts, please refer to the description of the method embodiments.

[0071] The above is only a preferred embodiment of the present invention, and does not limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention. [Explanation of symbols]

[0072] 1 - wind power tower, 100 - axial load direction, 101 - first strain gauge, 102 - second strain gauge, 103 - third strain gauge, 104 - fourth strain gauge, 200 - first measurement cross section, 201 - second measurement cross 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.

Claims

1. An axial load test method, which is applied to an axial load test system, the axial load test system includes a strain collector, a welding terminal, and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, a direction corresponding to the two strain gauges is a vertical direction, the at least two sets of strain gauges have a symmetrical structure, the strain collector 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 by a predetermined connection form, the method includes: acquiring measured strain data corresponding to the strain gauge module with the strain collector when the axial load test system detects that the member under test is connected to the member; determining target strain data for the component under test based on measured strain data corresponding to the strain gage modules; and generating an axial load corresponding to the component under test based on the target strain data and previously acquired component parameters of the component under test.

2. 2. The method of claim 1, wherein the strain gauge module includes at least two sets of strain gauges, the at least two sets of strain gauges including a first strain gauge set and a second strain gauge set, the first strain gauge set including a first strain gauge and a second strain gauge, the first strain gauge and the second strain gauge being perpendicular to each other, the second strain gauge set including a third strain gauge and a fourth strain gauge, the third strain gauge and the fourth strain gauge being perpendicular to each other, and the first strain gauge set and the second strain gauge set being symmetrical based on an axial load direction.

3. 3. The method of claim 2, wherein the directions of the electrical resistance wires corresponding to the first strain gauge and the third strain gauge are vertically downward, and the directions of the electrical resistance wires corresponding to the second strain gauge and the fourth strain gauge are perpendicular to the axial load direction.

4. 2. The method according to claim 1, wherein a target bridge circuit is formed between the welding terminal and the strain gauge module in a predetermined connection configuration.

5. determining target strain data for the component under test based on measured strain data corresponding to the strain gage modules; obtaining bridge arm coefficients corresponding to the target bridge circuit; and generating target strain data for the member under test based on the bridge arm coefficients and measured strain data corresponding to the strain gage modules.

6. Each of the strain gauges corresponds to two terminals, 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 collecting device is connected to each of the strain gauges via the welding terminals; forming a target bridge circuit between the welding terminal and the strain gauge module in a predetermined connection configuration; and connecting the strain collector to the welding lug via a lead wire.

7. The step of forming a target bridge circuit between the welding terminal and the strain gauge module in a predetermined connection configuration includes:

7. The method of claim 6, further comprising the step of connecting the welding terminals to terminals corresponding to the strain gauges via welding points to form a target bridge circuit.

8. The step of connecting the welding terminals to the terminals corresponding to the strain gauges via welding points to form a target bridge circuit includes: sequentially connecting terminals corresponding to the first strain gauge and the second strain gauge to the first welding terminal; sequentially connecting terminals corresponding to the third strain gauge and the fourth strain gauge to the second welding terminal; 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 via lead wires; connecting a second terminal of the first strain gauge and a first terminal of the fourth strain gauge to a second welding point of the third welding terminal via lead wires; connecting a first terminal of the third strain gauge and a second terminal of the fourth strain gauge to a third welding point of the third welding terminal via lead wires; and connecting the second terminal of the third strain gauge and the first terminal of the second strain gauge to a fourth welding point of the third welding terminal via lead wires to obtain a target bridge circuit.

9. The step of connecting the strain collector to the welding terminal via a lead wire comprises:

7. The method of claim 6, further comprising the step of connecting the third welding terminal to the strain collector via a lead wire, the strain collector being used to collect the measured strain data based on a preset sampling frequency.

10. The step of connecting the third welding terminal to the strain collector via a lead wire includes: positively connecting a first welding point of the third welding terminal to an excitation voltage of a strain collector via a lead wire; connecting a second welding point of the third welding terminal to a signal of a strain collector in a positive polarity via a lead wire; connecting a third welding point of the third welding terminal to a negative polarity of an excitation voltage of a strain collector via a lead wire; and connecting a fourth welding point of the third welding terminal to a signal of a strain collector in a negative polarity via a lead wire.

11. the step of acquiring measured strain data corresponding to the strain gauge module by the strain collector when the axial load test system detects that the member under test is connected to the member, further comprising: controlling the strain gage module to couple to the component under test; and acquiring measured strain data corresponding to the strain gauge module with the strain collector.

12. 2. The method of claim 1, wherein the step of generating an axial load corresponding to the component under test based on the target strain data and previously acquired component parameters under test is performed using the following formula: F ｚ = σ·S = ε test / A·E·S (Here, F ｚ is the axial load corresponding to the member under test, A is the bridge arm coefficient, the numerical value corresponding to A is 2(1+ν), ε is the target strain data of the member under test, and ε 測定 is the measured strain data corresponding to the strain gauge module, σ is the stress, ν is the Poisson's ratio of the elastic element of the member under test, E is the elastic modulus of the member under test, and S is the cross-sectional area of ​​the member under test.

13. An axial load test device, which is applied to an axial load test system, includes a strain collector, a welding terminal, and a strain gauge module, the strain gauge module includes at least two sets of strain gauges, each set of strain gauges includes two strain gauges, the directions corresponding to the two strain gauges are perpendicular, the at least two sets of strain gauges have a symmetrical structure, the strain collector is connected to each of the strain gauges via the welding terminal, and the device: an acquisition module for acquiring measured strain data corresponding to the strain gauge module by the strain collector when the axial load testing system detects that the member under test is connected to the member; a determination module for determining target strain data for the component under test based on measured strain data corresponding to the strain gauge modules; a generation module for generating an axial load corresponding to the component under test based on the target strain data and previously acquired parameters of the component under test.

14. a transceiver, a memory, a processor, and a program stored in the memory and executable by the processor; A communication device, characterized in that the processor is used to read a program in a memory and implement the axial load testing method according to any one of claims 1 to 12.

15. A readable storage medium for storing a program, the program implementing the axial load testing method according to any one of claims 1 to 12 when executed by a processor.

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