Hub fairing support with detection device and installation and detection method

Abstract

The invention discloses a hub fairing support with a detection device and an installation and detection method. Strain gauges are installed on the fairing support, the fairing support is connected to the Internet through an industrial personal computer, remote control software is installed, strain data are collected, remote observation and analysis are achieved, and the reason for cracking of the fairing support is analyzed through the strain data. And by comparing the strain data before and after the optimization, the problem of cracking of the fairing bracket of the fan hub is solved, and the safety and reliability of the fan are improved. According to the main technical scheme, the hub fairing support with the detection device comprises a fairing support body, and the fairing support body comprises a plurality of connecting ribs; the plurality of stress detection pieces are arranged on the connecting ribs, and the plurality of stress detection pieces are distributed on the fairing bracket in a scattered manner; and the stress detection piece is connected with the signal processor and is used for transmitting the stress information of the fairing bracket to the signal processor. The method is mainly used for optimizing the fairing support.

Description

Technical Field

[0001] This invention relates to the field of wind turbine generator technology, and in particular to a hub fairing bracket with a detection device, and its installation and detection method. Background Technology

[0002] During wind turbine operation, there is a lack of effective means to quantify the fairing, its support structure, and its stiffness. Traditional methods involve using 3D modeling tools like UG to model and install the fairing structure, followed by stress simulation software such as ANSYS for strength calculations and force analysis to derive the structural model. This model is then imported for manufacturing, with fiberglass being the most common material, although other materials such as alloys are sometimes chosen. Traditional engineering design and finite element analysis methods struggle to effectively simulate actual wind conditions, vibrations, and other boundary conditions. Considering the specific load conditions on the turbine hub in actual applications, previous work has effectively quantified the stress on the turbine hub under real-world conditions. These modeling approaches and methods are universally applicable to the stress analysis of the fairing support frame and have significant analytical and reference value.

[0003] However, during actual installation, due to errors in the molds, manufacturing processes, and deformation of the steel structure on site, the fairing support frame will be subjected to varying degrees of stress, which was not calculated in advance during the simulation. Under more demanding conditions, welding and irregular shapes may occur on site, potentially causing even greater errors in the stress on the fairing support frame. This significantly increases the difficulty of on-site installation and the inaccuracy of stress analysis, thus increasing the likelihood of intermittent breakage of the front and rear steel frames of the fairing after the unit is installed and put into operation.

[0004] Prolonged operation with cracked hub shield supports poses certain safety risks to the equipment. For example, a broken guide vane steel frame could cause deformation of the hub guide vane, potentially leading to interference and wear on the wind turbine blades, resulting in blade damage. If blade wear occurs, replacing the blades would require a prolonged turbine shutdown, and the cost of the blades and replacement labor is substantial. The resulting loss of power generation and the need for new equipment would result in significant economic losses. Furthermore, welding repairs on the tower after the wind turbine guide vane support has cracked requires hot work, which is a high-risk operation and poses a fire hazard at the wind turbine's air intake.

[0005] Therefore, there is an urgent need to explore methods and technologies for stress detection of the fairing support, and to make targeted technical modifications to improve the safety and reliability of the wind turbine. Summary of the Invention

[0006] In view of this, in order to solve at least one of the above-mentioned technical problems, the present invention provides a hub fairing bracket with a detection device, and an installation and detection method thereof.

[0007] To achieve the above objectives, the present invention mainly provides the following technical solutions:

[0008] On one hand, the present invention provides a hub fairing bracket with a detection device, comprising:

[0009] The fairing support includes multiple connecting ribs;

[0010] Multiple stress detection devices are installed on the connecting ribs and are distributed on the guide fairing support.

[0011] The signal processor is connected to the stress detection device and is used to transmit the stress information of the fairing support to the signal processor.

[0012] The stress detection component is a strain gauge, and the signal processor includes a strain gauge and an industrial control computer. The strain gauge is electrically connected to the strain gauge, and the strain gauge is electrically connected to the industrial control computer. The industrial control computer is used to analyze and process the stress information and to wirelessly transmit the stress information remotely.

[0013] The strain gauge and industrial control computer are located inside the wheel hub.

[0014] The fairing support includes a front fairing support and a rear fairing support, and stress detection components are respectively installed on the front fairing support and the rear fairing support.

[0015] The front support of the fairing includes a support body and a reinforcing frame. The connecting ribs of the support body include fairing ribs, hub ribs and connecting ribs. The connecting ribs are connected to the fairing ribs and hub ribs respectively. Stress detection devices are provided at the connection between the connecting ribs and the fairing ribs.

[0016] Stress testing components are installed on the reinforcing frame.

[0017] On the other hand, the present invention provides a method for installing a detection device for mounting a hub fairing bracket with a detection device, the method comprising:

[0018] Inspect and sort stress-tested parts;

[0019] Surface pretreatment of the fairing support;

[0020] Determine the installation point of the fairing bracket and mark the installation direction of the stress detection component at the installation point;

[0021] Set up point reprocessing;

[0022] Connect the stress testing components to the setting points according to the direction markings;

[0023] Connect the strain gauge to the stress testing device, and weld the measuring leads to the strain gauge.

[0024] The step of connecting the stress testing component to the setting point according to the direction markings also includes:

[0025] Apply waterproofing treatment to the pasted stress test specimens;

[0026] After connecting the strain gauge to the stress testing device and welding the measuring wire to the strain gauge, the method further includes:

[0027] Measure the resistance of the wires and check the connection between the stress testing component and the fairing support.

[0028] Furthermore, the present invention also provides a method for testing a hub fairing bracket, for a hub fairing bracket equipped with a testing device, the testing method comprising:

[0029] Obtain the original stress information and perform data cleaning on the original stress information;

[0030] The cause of the wheel hub fairing bracket cracking was determined based on the original stress information after cleaning.

[0031] Based on the cause of the cracking, the structure of the wheel hub fairing bracket was optimized to obtain a new wheel hub fairing bracket.

[0032] Install the stress testing component onto the new hub fairing bracket, and install the new hub fairing bracket with the testing device.

[0033] Acquire new stress information and perform data cleaning on the new stress information;

[0034] The feasibility of the new hub fairing bracket was determined based on the new stress information after cleaning.

[0035] The steps for determining the cause of the wheel hub fairing bracket cracking based on the stress information after cleaning include:

[0036] The cause of the wheel hub fairing bracket cracking was determined based on the stress information after cleaning, the material and strength of the wheel hub fairing bracket.

[0037] The step of determining the feasibility of the new hub fairing bracket based on the new stress information after cleaning includes:

[0038] Establish different wind speed operating conditions. Under the same operating conditions, compare the new stress information with the original stress information to determine the feasibility of the new hub fairing support. If the new hub fairing support is not feasible, determine the cause of cracking of the new hub fairing support based on the new stress information after cleaning, the material and strength of the new hub fairing support. Based on the cause of cracking, optimize the structure of the new hub fairing support to obtain the next hub fairing support.

[0039] This invention proposes a hub fairing support with a detection device, its installation, and a detection method for wind turbine generator sets. It addresses the engineering problem of periodic cracking caused by insufficient rigidity in the support structure of the wind turbine hub fairing, and conducts a detailed analysis of the causes. Stress data of the fairing support is obtained using stress testing devices. Analysis of this stress data reveals the stress condition of the fairing support, leading to modifications to the support structure and the addition of corresponding fixing points to improve rigidity. Stress data monitoring and processing are used to verify the results of the optimized solution. Comparative analysis of relevant data before and after the modification facilitates the determination of the feasibility of the solution and identifies the optimal measures to solve the cracking of the wind turbine hub fairing steel frame, achieving a quantitative analysis of the feasibility of structural optimization. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of a partial structure of a hub fairing bracket with a detection device provided in an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the electrical connection of a hub fairing bracket with a detection device provided in an embodiment of the present invention;

[0042] Figure 3 A flowchart illustrating an installation method for a detection device provided in an embodiment of the present invention;

[0043] Figure 4 This is a flowchart of a detection method for a hub fairing bracket provided in an embodiment of the present invention. Detailed Implementation

[0044] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of the hub fairing bracket with detection device proposed according to the present invention.

[0045] On the one hand, such as Figure 1-2 As shown, the present invention provides a hub fairing bracket with a detection device, comprising:

[0046] The fairing support 100 includes multiple connecting ribs;

[0047] Multiple stress detection elements 200 are provided on the connecting ribs and are distributed on the guide fairing support 100.

[0048] The stress detection component 200 is connected to the signal processor and is used to transmit the stress information of the fairing support 100 to the signal processor.

[0049] The fairing bracket 100 is installed inside the fairing and supports the fairing with the help of the wheel hub. The fairing bracket 100 can take various forms, such as a fairing including a guide cone located at the front and a fairing plate located behind the guide cone and connected to the guide cone. The fairing bracket 100 can be further divided into a front fairing bracket and a rear fairing bracket. The front fairing bracket is connected to the junction of the guide cone and the fairing plate, and the rear fairing bracket is connected to the end of the fairing plate away from the guide cone, thereby providing multi-directional support for the fairing.

[0050] The stress detection element 200 can be a metal strain gauge or a resistance strain gauge, and is fixed to the fairing support 100 by adhesive bonding. The specific structure of the fairing support 100 can vary. The stress detection element 200 is attached according to the structure of the fairing support 100 to ensure that it can be placed at typical stress points of the fairing support 100, such as locations prone to breakage based on experience. The placement will be described in more specific structural examples later.

[0051] A resistance strain gauge is attached to the surface of the fairing support 100, and the two ends of the resistance wire inside the strain gauge are connected to a measuring circuit (Wheatstone bridge). As the fairing support 100 is subjected to stress deformation, the resistance wire of the strain gauge also undergoes corresponding deformation, causing a change in resistance value. From the working principle of the strain gauge, it can be seen that when the strain is along the principal axis of the strain gauge, the rate of change of resistance ΔR / R of the strain gauge and the principal strain ε of the fairing support 100 are related. X Proportional, that is

[0052] ε X =△R / RK

[0053] In the formula, K is the sensitivity coefficient of the strain gauge, which is the factory setting value; R is the initial value of the strain gauge resistance when no force is applied; ΔR is the change in resistance of the strain gauge after stress deformation. Therefore, as long as the relative change in the strain gauge resistance is measured, the strain of the fairing support 100 can be obtained.

[0054] Furthermore, the signal processor includes a strain gauge and an industrial computer. The strain gauge is electrically connected to the strain gauge, and the strain gauge is electrically connected to the industrial computer. The industrial computer is used to analyze and process the stress information, as well as to wirelessly transmit the stress information remotely. This enables both the acquisition and storage of stress information, and remote real-time monitoring.

[0055] This invention proposes a hub fairing support with a detection device, along with its installation and detection method, for wind turbine generator sets. It addresses the issue of periodic cracking caused by insufficient rigidity in the hub fairing support structure, and analyzes the specific causes. The method involves remotely monitoring the stress on the fairing support by installing strain gauges and collecting data using vibration monitoring equipment. The on-site vibration monitoring equipment is connected to an industrial control computer, which is then connected to the internet and equipped with remote control software for remote observation and data download for background analysis. By comprehensively analyzing the stress data, the material and strength of the wind turbine hub fairing steel frame, the specific causes of the wind turbine hub fairing support cracking are determined, fundamentally solving the problem and improving the safety and reliability of the wind turbine.

[0056] In a more specific implementation, the instruments and meters of the detection device can be selected as follows:

[0057] The stress testing component 200 can use the BX120-3EB strain gauge, which is a full-bridge strain gauge with a room temperature resistance of 120Ω. The sensitive grid is 3×2mm, the base size is 11×11mm, the range is 20000 micro-strain, and it comes with a 3-meter insulated lead wire.

[0058] The strain gauge can be a YSV8316 static strain gauge with 40 measuring points; resolution of 0.1με; total sampling rate of 200Hz; supports three-wire self-compensating strain testing; supports three-wire RTD, two-wire RTD, thermocouple, and 4-20mA transmitter testing; supports automatic 1 / 4 bridge conductor resistance testing; electronic switch for measuring points; supports bus networking testing mode; supports online, offline, and wireless testing; can be used for structural strain and stress measurement and calculation, enabling stress measurement and long-term monitoring, and comes with strain testing and analysis software.

[0059] The industrial control computer uses the YSV8300 wireless gateway for wireless signal reception and transmission.

[0060] The industrial PC can be a customized fanless embedded industrial PC, AIMC-2000, using a miniature host ARK-6322 micro J bare machine, without memory or hard drive, and the adapter can be Advantech AIMC-2000 / J1900. In some implementations, the industrial PC can be housed in a customized chassis to protect it.

[0061] In one embodiment, the strain gauge and industrial control computer are installed inside the wheel hub to reduce vibration.

[0062] During installation, the strain gauge is attached to the selected measuring point inside the fairing bracket. Then, it is connected to the YSV8316 strain gauge via the strain gauge's built-in wires and extension wires. The industrial control computer then transmits the data to the data acquisition terminal via the YSV8300 wireless gateway. The data acquisition terminal performs post-processing on the acquired data using YSV data analysis software, thereby enabling remote observation and downloading of monitoring data for background analysis.

[0063] The strain gauges can be installed in various locations. For example, stress detection elements 200 can be installed on both the front and rear supports of the fairing, allowing for structural optimization and stress analysis of both the front and rear supports. Alternatively, they can be installed on either the front or rear support of the fairing.

[0064] For example Figure 1 Taking the fairing support 100 as a more specific example, the front fairing support includes a support body and a reinforcing frame 110. The connecting ribs of the support body include fairing ribs 120, hub ribs 130, and connecting ribs 140, which are connected to the fairing ribs 120 and hub ribs 130, respectively. The fairing ribs 120 are used to connect to the fairing, and the hub ribs 130 are used to connect to the hub. Both the fairing ribs 120 and hub ribs 130 are annular support ribs, arranged concentrically at intervals. The connecting ribs 140 can be of various forms, such as... Figure 1 The system features approximately V-shaped support ribs. The bottom rib connects to the hub rib 130, while two separate supports at the top connect to the fairing rib 120. Stress detection elements 200 are installed at the connection points between the connecting rib 140 and the fairing rib 120; strain gauges are installed at the connection points of the two supports and the fairing rib 120, as illustrated by the elliptical strain gauges in the figure. Reinforcing frames 120 can be positioned corresponding to the connecting ribs 140, such as between two supports. Reinforcing frames 120 can be two approximately triangular supports arranged in parallel, with a strain gauge installed on the hypotenuse of either triangular support, as illustrated by the square strain gauges in the figure. Three connecting ribs 140 can be evenly distributed around the circumference of the fairing rib 120, resulting in a total of six strain gauges on the three connecting ribs 140. Similarly, three reinforcing frames 120 correspond to three connecting ribs 140, resulting in a total of six strain gauges on the three reinforcing frames 120.

[0065] The fairing rear support can also be three circumferentially arranged, and the shape can be set as needed. One strain gauge is installed on each fairing rear support. That is, a total of 16 strain gauges are installed on the fairing support 100, which serve to detect strain at various key stress points.

[0066] On the other hand, such as Figure 3As shown, the present invention provides a method for installing a detection device for mounting a hub fairing bracket with a detection device. The method includes:

[0067] S3-1. Inspect and sort stress test pieces.

[0068] Select qualified strain gauges that meet the requirements.

[0069] S3-2, Surface pretreatment of the fairing support.

[0070] Grind and clean the surface of the fairing bracket 100 to remove oil, paint, etc., and ensure strong adhesion.

[0071] S3-3. Determine the installation point of the fairing bracket and mark the installation direction of the stress detection component at the installation point.

[0072] Since strain gauges measure strain in a specific direction, a scribe line can be used to mark a cross on the polished surface of the fairing bracket 100 to indicate the direction and guide the subsequent installation of the strain gauges.

[0073] S3-4, Set point reprocessing.

[0074] Clean the adhesive area with alcohol or acetone.

[0075] S3-5. Connect the stress testing piece to the setting point according to the direction marking.

[0076] When attaching strain gauges, it is essential to ensure that there are no air bubbles inside the gauges and that they are attached in one go. Some implementations also include waterproofing the attached stress testing component to prevent strain gauge failure in the event of oil leaks or high humidity, and to avoid damage or mold growth from prolonged use, thus ensuring the sensitivity of the strain gauges and the accuracy of the detected structure.

[0077] S3-6. Connect the strain terminal to the stress detection component and weld the measuring wire to the strain terminal.

[0078] The measuring leads provide the electrical connection between the strain gauge and the strain meter. The measuring leads must have low resistance, and they can be soldered to the strain terminals. The resistance of the connected measuring leads can be measured with a multimeter to check the effectiveness of the connection between the stress detection element (strain gauge) and the fairing support 100. The fairing support 100 can be manually or with external force pressed to test whether the strain gauge and the fairing support 100 are linked.

[0079] Strain measurement requires strict adherence to strain gauge bonding techniques. The installation method described in this application ensures correct and secure bonding of strain gauges, thereby guaranteeing measurement accuracy. This approach enables a comprehensive analysis of the stress data, the material properties of the wind turbine hub fairing steel frame, and its strength to identify the specific causes of cracking in the wind turbine hub fairing support, ultimately resolving the problem of wind turbine hub fairing support cracking.

[0080] On the other hand, such as Figure 4 As shown, the present invention also provides a method for testing a hub fairing bracket, which is used for a hub fairing bracket equipped with a testing device.

[0081] Taking the front steel frame of the 2.0MW unit fairing as an example, the original design: the front steel frame of the 2.0MW unit fairing was a three-dimensional spatial structure, only including Figure 1 The support body shown is an example. Due to poor manufacturing precision and dimensional deviations in the guide vane that it connects with, the front steel frame of the guide vane experiences internal stress after the wind turbine is assembled. Furthermore, since this part is manufactured by welding, welding stress at the weld seams cannot be ruled out. As a result, the front steel frame of the guide vane has intermittently broken after the unit was installed and put into operation. Therefore, a strengthening and technical improvement plan was developed, namely, adding... Figure 1 The intermediate stiffener 110. Even after the technical upgrade, occasional breakage of the stiffener, installation difficulties on different aircraft models, and maintenance problems with the secondary distributor of the pitch lubrication system still occurred. Therefore, this testing method was adopted for further structural updates.

[0082] The detection methods include:

[0083] S4-1. Obtain the original stress information and perform data cleaning on the original stress information.

[0084] That is, to obtain the strain information of 16 strain gauges on the fairing support 100 before the update.

[0085] The purpose of data cleaning is to remove outliers, duplicates, errors, and missing values ​​from the data. First, data cleaning involves outlier detection, identifying and eliminating outliers using statistical methods or visualization tools to prevent them from interfering with subsequent data analysis and modeling. Second, data cleaning also needs to handle duplicate values, ensuring data uniqueness by comparing, merging, or deleting duplicate records. Next, data cleaning addresses errors, such as incorrect data types or data ranges, through logical checks and corrections. Finally, data cleaning handles missing values, using methods such as interpolation, deletion, or imputation to fill in missing data. This process ultimately results in more accurate and continuous strain information data.

[0086] S4-2. Determine the cause of the cracking of the hub fairing bracket based on the original stress information after cleaning.

[0087] For example, the cause of the wheel hub fairing bracket crack can be determined based on the stress information after cleaning, the material and strength of the wheel hub fairing bracket. That is, find the location of the crack and the reasons that caused it, such as whether the material hardness is insufficient or the local support strength is insufficient.

[0088] S4-3. Based on the cause of the cracking, the structure of the wheel hub fairing bracket is optimized to obtain a new wheel hub fairing bracket.

[0089] As this application relates to, Figure 1 The improved fairing bracket 100 shown is subject to a second technical modification. The new modification scheme is to increase the support point by using the pitch bearing and hub mounting bolts, and then install the corresponding bracket through the support point and connect it to the front steel frame of the fairing for reinforcement and fixation.

[0090] S4-4. Install the stress testing component onto the new hub fairing bracket, and install the new hub fairing bracket with the testing device.

[0091] The position of the strain gauges can be set according to the structure of the new hub fairing bracket. The structure of the secondary technical modification scheme described above is largely unchanged from the primary technical modification scheme, and the following can still be adopted: Figure 1 The strain gauges are set in the same way, that is, 16 strain gauges are still set.

[0092] S4-5. Obtain new stress information and perform data cleaning on the new stress information.

[0093] The purpose of data cleaning is to remove outliers, duplicates, errors, and missing values ​​from the data. Details will not be elaborated further.

[0094] S4-6. Determine the feasibility of the new hub fairing bracket based on the new stress information after cleaning.

[0095] Specifically, different wind speed operating conditions can be established. Under the same operating conditions, the new stress information and the original stress information can be compared to determine the feasibility of the new hub fairing support. If the new hub fairing support is not feasible, the cause of cracking of the new hub fairing support can be determined based on the new stress information after cleaning, the material and strength of the new hub fairing support. Based on the cause of cracking, the structure of the new hub fairing support can be optimized to obtain the next hub fairing support.

[0096] By setting up different wind speed operating modes and comparing them under the same operating conditions, the structural optimization is compared under consistent objective conditions, making the evaluation of the effectiveness of the optimization methods more accurate. The above-mentioned secondary technical modification scheme in this application significantly shortens the cantilever of the reinforced support of the front steel frame of the fairing compared to the past. With the same materials, its strength can be greatly improved. At the same time, its installation path avoids the oblique square tube of the front steel frame of the fairing and the secondary distributor of the pitch lubrication system, which can eliminate the previous installation difficulties and solve the problems of difficult maintenance of the secondary distributor of the pitch lubrication system.

[0097] Data collection began on March 10, 2024 and continued until September 10, 2024, lasting 6 months. It recorded in detail the stress levels of 16 channels of the wind turbine hub cover steel frame under wind speeds of 18 meters (inclusive) and below. The structure proved that the technical improvement was effective and reduced the risk of cracking.

[0098] This testing method addresses the cracking problem caused by insufficient stiffness in the wind turbine hub fairing support structure. An optimized model was established; stress data of the fairing support structure was acquired using a 16-channel stress testing device; and the effectiveness of the data and the applicability of the method were verified through actual engineering projects.

[0099] 1. By changing the support structure of the fairing and adding corresponding fixing points, the rigidity is improved. At the same time, the design also takes into account reducing the difficulty of installation. The solution has good versatility and can be widely promoted.

[0100] 2. Data monitoring and processing were used to verify the results of the optimized scheme. Numerical verification confirmed that the stress amplitude was effectively controlled and the uniformity of the overall structural stress was achieved, greatly enhancing the persuasiveness of the structural optimization. Specifically, this scheme used stress testing devices to obtain stress data of the fairing support. By analyzing the stress data, the stress condition of the fairing support was determined, and the support structure of the fairing was modified by adding corresponding fixing points to improve rigidity. The stress data monitoring and processing were used to verify the results of the optimized scheme, enabling a comparative analysis of relevant data before and after the modification. This facilitated the determination of the feasibility of the scheme and the identification of the optimal measures to solve the cracking of the wind turbine hub cover steel frame. Numerical verification confirmed that the stress amplitude was effectively controlled and the uniformity of the overall structural stress was achieved, enabling a quantitative analysis of the feasibility of the structural optimization.

[0101] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hub fairing bracket with a detection device, characterized in that, include: A fairing support (100) includes multiple connecting ribs; Multiple stress detection elements (200) are disposed on the connecting ribs, and the multiple stress detection elements (200) are distributed on the fairing support (100); The stress detection device (200) is connected to the signal processor and is used to transmit the stress information of the fairing support (100) to the signal processor.

2. The hub fairing bracket with detection device according to claim 1, characterized in that, The stress detection device (200) is a strain gauge, and the signal processor includes a strain gauge and an industrial control computer. The strain gauge is electrically connected to the strain gauge, and the strain gauge is electrically connected to the industrial control computer. The industrial control computer is used to analyze and process the stress information and to wirelessly transmit the stress information remotely.

3. The hub fairing bracket with detection device according to claim 1, characterized in that, The strain gauge and the industrial control computer are located inside the wheel hub.

4. The hub fairing bracket with detection device according to claim 1, characterized in that, The fairing support (100) includes a front fairing support and a rear fairing support, and the stress detection element (200) is respectively provided on the front fairing support and the rear fairing support.

5. The hub fairing bracket with detection device according to claim 4, characterized in that, The front support of the fairing includes a support body and a reinforcing frame (110). The connecting ribs of the support body include fairing ribs (120), hub ribs (130) and connecting ribs (140). The connecting ribs (140) are connected to the fairing ribs (120) and the hub ribs (130) respectively. The stress detection element (200) is provided at the connection between the connecting ribs (140) and the fairing ribs (120). The stress detection element (200) is provided on the reinforcing frame (120).

6. A method for installing a detection device, used for installing a hub fairing bracket with a detection device, characterized in that, The method includes: Inspect and sort stress-tested parts; Surface pretreatment of the fairing support; Determine the installation point of the fairing bracket and mark the installation direction of the stress detection component at the installation point; Set up point reprocessing; Connect the stress testing component to the designated point according to the direction markings; Connect the strain terminal to the stress detection element, and weld the measuring wire to the strain terminal.

7. The installation method of the detection device according to claim 6, characterized in that, After the step of connecting the stress testing element to the setting point according to the direction marking, the method further includes: Apply waterproofing treatment to the pasted stress testing component; After connecting the strain terminal to the stress detection element and welding the measuring wire to the strain terminal, the method further includes: Measure the resistance of the conductor and check the connection between the stress detection element and the fairing support.

8. A method for testing a hub fairing bracket, characterized in that, For a hub fairing bracket with a detection device, the detection method includes: Obtain the original stress information and perform data cleaning on the original stress information; The cause of the wheel hub fairing bracket cracking was determined based on the original stress information after cleaning. Based on the cause of the cracking, the structure of the wheel hub fairing bracket was optimized to obtain a new wheel hub fairing bracket. Install the stress testing component onto the new hub fairing bracket, and install the new hub fairing bracket with the testing device. Obtain new stress information and perform data cleaning on the new stress information; The feasibility of the new hub fairing bracket is determined based on the new stress information obtained after cleaning.

9. The installation method of the detection device according to claim 8, characterized in that, The steps for determining the cause of the wheel hub fairing bracket cracking based on the stress information after cleaning include: The cause of the cracking of the wheel hub fairing bracket was determined based on the stress information after cleaning, the material and strength of the wheel hub fairing bracket.

10. The method for detecting the hub fairing bracket according to claim 1, characterized in that, The steps for determining the feasibility of the new hub fairing bracket based on the new stress information after cleaning include: Different wind speed operating conditions are established. Under the same operating condition, the new stress information and the original stress information are compared to determine the feasibility of the new hub fairing bracket. If the new hub fairing bracket is not feasible, the cause of cracking of the new hub fairing bracket is determined based on the new stress information after cleaning, the material and strength of the new hub fairing bracket, and the cause of cracking. The structure of the new hub fairing bracket is optimized based on the cause of cracking to obtain the next hub fairing bracket.

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