Load transmission path determination method and device, equipment and storage medium

Abstract

The invention discloses a load transmission path determination method and device, equipment and a storage medium, and relates to the technical field of mechanical stress analysis, and the method comprises the steps: carrying out the modeling of a yaw driving device, so as to obtain a yaw driving model, and carrying out the grid division of the yaw driving model, so as to obtain a grid model corresponding to the yaw driving model; importing the mesh model into finite element analysis software, and analyzing the mesh model by using the finite element analysis software to obtain a target finite element model; and the meshing tooth rigidity of meshing teeth in the target finite element model is determined according to the load acting on the target finite element model, and the transmission path of the load on the yaw driving device is determined based on the target finite element model and by means of the meshing tooth rigidity. The transmission path of the load on the yaw driving device is determined by utilizing the rigidity of the meshing teeth, and the stress condition of the yaw driving device is accurately mastered, so that the operation stability of the wind driven generator can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical force analysis, and in particular to a method, device, equipment and storage medium for determining a load transfer path. Background Art

[0002] In wind power generation systems, the yaw reducer tooth breakage fault may occur due to various factors such as complex terrain, seasonal turbulence, load impact, uneven load, etc. This fault not only affects the normal operation of the wind turbine, but also reduces the overall power generation efficiency of the wind farm. In addition, the yaw drive tooth breakage fault may cause secondary faults such as damage to the main frame and yaw bearing teeth, which may cause the unit to be removed from the tower, greatly increasing maintenance costs. Therefore, the force analysis of the drive is extremely important, and the force calculation of the drive is based on finite elements.

[0003] In the prior art, the small teeth of the yaw drive motor driving teeth and the large teeth of the ring gear in the yaw drive device are respectively loaded with corresponding loads and are subjected to uniform force. This method cannot accurately simulate the load transfer path according to actual conditions, which may cause damage to components in the wind turbine. Therefore, accurately grasping the force conditions of the yaw drive device is a technical problem that needs to be solved at present. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a method, device, equipment and storage medium for determining a load transfer path, which can determine the stiffness of the meshing teeth according to the magnitude of the load acting on the yaw drive device, and analyze the load transfer path on the yaw drive device according to the finite element model corresponding to the meshing teeth stiffness and the yaw drive device. The specific scheme is as follows:

[0005] In a first aspect, the present application discloses a method for determining a load transfer path, comprising:

[0006] Performing a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and performing mesh division on the yaw drive model to obtain a mesh model corresponding to the yaw drive model;

[0007] Importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model;

[0008] The meshing tooth stiffness of the meshing teeth in the target finite element model is determined according to the preset load acting on the target finite element model, and the transmission path of the preset load on the yaw drive device is determined based on the target finite element model and using the meshing tooth stiffness.

[0009] Optionally, the performing three-dimensional modeling operation on the yaw drive device includes:

[0010] The meshing teeth in the yaw drive device are arranged as a preset spring unit, and the transmission dummy in the yaw drive device is arranged as a preset beam unit;

[0011] The yaw drive device is subjected to a three-dimensional modeling operation by utilizing the preset spring unit corresponding to the meshing teeth and the preset beam unit corresponding to the transmission dummy.

[0012] Optionally, determining the meshing tooth stiffness of the meshing teeth in the yaw drive device according to a preset load acting on the yaw drive device comprises:

[0013] The preset load currently acting on the target finite element model is analyzed, and the meshing tooth stiffness of the meshing tooth in the target finite element model is determined according to the corresponding analysis result; wherein, when the analysis result characterizes that the operating condition of the target finite element model is a fatigue condition / limit condition, the meshing tooth stiffness is the corresponding fatigue condition stiffness / limit condition stiffness.

[0014] Optionally, determining a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness includes:

[0015] If the meshing tooth stiffness is the fatigue condition stiffness, determining whether the preset load is greater than the braking capacity of the yaw caliper in the yaw drive device;

[0016] If the preset load is not greater than the braking capacity of the yaw caliper, using the yaw caliper to bear the preset load;

[0017] If the preset load is greater than the braking capacity of the yaw caliper, the preset load is divided based on the braking capacity of the yaw caliper to obtain a first load and a second load; wherein the first load is a load portion within the braking capacity of the yaw caliper, and the second load is a load portion of the preset load that is greater than the braking capacity;

[0018] The first load is carried by the yaw caliper in the yaw drive device, and the second load is carried by the yaw drive motor in the yaw drive device.

[0019] Optionally, the using the yaw drive motor in the yaw drive device to carry the second load includes:

[0020] Setting the total torque of all driving teeth of the yaw drive motor as a first target total torque, and setting the torque of a single driving tooth as a first target torque based on the first target total torque;

[0021] The second load is carried by the yaw drive motor in the yaw drive device based on the first target torque of the single drive tooth.

[0022] Optionally, the using the yaw drive motor in the yaw drive device to carry the second load includes:

[0023] If the second load is greater than a load threshold of a single yaw drive motor, different yaw drive motors in the yaw drive device are used to carry the second load in sequence.

[0024] Optionally, determining a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness includes:

[0025] If the meshing tooth stiffness is the limit working condition stiffness, the total torque of all the drive teeth is set to a second target total torque corresponding to the total braking capacity of all the yaw drive motors, and the torque of a single drive tooth is set to a second target torque based on the second target total torque;

[0026] The second load is carried by the yaw drive motor in the yaw drive device based on the second target torque of the single drive tooth.

[0027] In a second aspect, the present application provides a load transfer path determination device, comprising:

[0028] A mesh model acquisition module is used to perform a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and to mesh the yaw drive model to obtain a mesh model corresponding to the yaw drive model;

[0029] A finite element model acquisition module, used for importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model;

[0030] A path determination module is used to determine the meshing tooth stiffness of the meshing teeth in the target finite element model according to a preset load acting on the target finite element model, and to determine a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness.

[0031] In a third aspect, the present application provides an electronic device, including:

[0032] Memory, used to store computer programs;

[0033] A processor is used to execute the computer program to implement the aforementioned load transfer path determination method.

[0034] In a fourth aspect, the present application provides a computer-readable storage medium for storing a computer program, wherein the computer program implements the aforementioned load transfer path determination method when executed by a processor.

[0035] The present application first performs a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and meshes the yaw drive model to obtain a mesh model corresponding to the yaw drive model, and then imports the mesh model into a preset finite element analysis software, and uses the preset finite element analysis software to analyze the mesh model to obtain a target finite element model corresponding to the mesh model, and finally determines the meshing tooth stiffness of the meshing teeth in the target finite element model according to the preset load acting on the target finite element model, and determines the transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness. It can be seen that the present application determines the stiffness of the meshing teeth according to the load acting on the yaw drive device, and determines the transmission path of the load in the yaw drive device using the finite element model obtained by modeling and the stiffness of the meshing teeth, accurately grasps the force condition of the yaw drive device, and can improve the stability of the wind turbine during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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 will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 A flow chart of a method for determining a load transfer path disclosed in the present application;

[0038] Figure 2 A schematic diagram of a finite element model disclosed in this application;

[0039] Figure 3 A schematic diagram of meshing tooth stiffness disclosed in this application;

[0040] Figure 4 A schematic diagram of meshing tooth stiffness disclosed in this application;

[0041] Figure 5A schematic diagram of meshing tooth stiffness disclosed in this application;

[0042] Figure 6 A schematic diagram of a load transfer path disclosed in this application;

[0043] Figure 7 A schematic diagram of a local load transfer method disclosed in this application;

[0044] Figure 8 A flow chart of a finite element model construction method disclosed in this application;

[0045] Fig. 9 This is a schematic structural diagram of a load transfer path determination device disclosed in this application;

[0046] Fig.10 This is a structural diagram of an electronic device disclosed in this application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] At present, the small teeth of the yaw drive motor driving gear and the large teeth of the gear ring in the yaw drive device are loaded with corresponding loads respectively, and the force is evenly applied, which may cause damage to the parts in the wind turbine. To this end, the present application provides a method for determining the load transfer path, by determining the stiffness of the meshing teeth according to the load, and using the meshing teeth stiffness and the finite element analysis model to determine the load transfer path in the yaw drive device, thereby avoiding the problem of mechanical damage caused by even force on the parts.

[0049] See also Figure 1 As shown, an embodiment of the present invention discloses a method for determining a load transfer path, comprising:

[0050] Step S11: perform a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and perform grid division on the yaw drive model to obtain a grid model corresponding to the yaw drive model.

[0051] In this embodiment, when modeling different parts of the yaw drive device, it is necessary to use model units with similar properties to the mechanical parts in the yaw drive device to model the yaw drive device. For example, the meshing teeth in the yaw drive device can be set as preset spring units, and the transmission prosthesis in the yaw drive device can be set as preset beam units; the yaw drive device is three-dimensionally modeled by using the preset spring units corresponding to the meshing teeth and the preset beam units corresponding to the transmission prosthesis; accordingly, other mechanical parts in the yaw drive device are also modeled by using modeling units with similar properties during the modeling process. The specific model units can be determined according to application requirements and are not specifically limited here. By using modeling units with similar properties to model the mechanical parts in the yaw drive device, the reliability of the generated yaw drive model is guaranteed.

[0052] Step S12: importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model.

[0053] In this embodiment, it is necessary to use a preset finite element analysis software to analyze the mesh model generated according to the yaw drive model, so as to obtain a finite element model corresponding to the mesh model; wherein the above finite element analysis software can be determined according to actual application requirements and is not specifically limited here. Figure 2 As shown, the finite element model corresponding to the yaw drive device mainly includes structures such as the yaw drive motor, the main frame, the yaw gear ring, and the yaw caliper. By generating a finite element model based on the mesh model, the necessary conditions are provided for the analysis process of the load transfer path.

[0054] Step S13: determining the meshing tooth stiffness of the meshing teeth in the target finite element model according to the preset load acting on the target finite element model, and determining a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness.

[0055] In this embodiment, the process of determining the stiffness of the meshing teeth according to the load acting on the target finite element model may specifically include: analyzing the preset load currently acting on the target finite element model, and determining the meshing tooth stiffness of the meshing teeth in the target finite element model according to the corresponding analysis results; wherein, when the analysis results characterize that the working condition of the target finite element model is a fatigue condition / limit condition, the meshing tooth stiffness is the corresponding fatigue condition stiffness / limit condition stiffness. It should be noted that the load acting on the target finite element model is a dynamic load that will change; and before determining the stiffness of the meshing teeth, it is also necessary to obtain the stiffness of the meshing teeth under different conditions. In a specific implementation, the curve simulation method can be used to calculate the following respectively. Figure 3The limit load of the meshing teeth is shown as the limit working stiffness, Figure 4 The first fatigue condition stiffness of the meshing teeth when only the yaw caliper is subjected to force and Figure 5 The second fatigue condition stiffness of the meshing teeth when the yaw drive motor is subjected to force is shown in FIG. Figure 6 As shown in the figure, when the yaw drive device is fatigued, due to the uncertainty of the total load, the torque corresponding to the preset load in the preset direction on the yaw drive motor and the yaw caliper is different, and four fatigue working conditions are derived, namely the positive and negative working conditions of the yaw caliper braking and the positive and negative working conditions of the yaw drive braking; when the fatigue working condition is derived, the load needs to be divided at the place of the yaw caliper braking capacity, the load is lower than the yaw caliper braking capacity, the load is divided into positive and negative channels; the load is higher than the yaw caliper braking capacity , the load of the caliper force channel = load - yaw caliper braking capacity, the load is divided into positive and negative channels, that is, when the load is lower than the yaw caliper braking capacity, the force is directly applied to the caliper, and the force on the yaw drive motor is 0; when the load is higher than the yaw caliper braking capacity, it is divided into two parts, (1) the yaw caliper is only subjected to the braking capacity part, (2) the higher part is subjected to the yaw drive tooth of the yaw drive motor, and the load = load - yaw caliper braking capacity; the positive and negative of the above working conditions and channels refer to the situation where the force directions are opposite. The process of determining the load transfer path according to the target finite element model and the meshing tooth stiffness may specifically include: if the meshing tooth stiffness is a fatigue condition stiffness, determining whether the preset load is greater than the braking capacity of the yaw caliper in the yaw drive device; if the preset load is not greater than the braking capacity of the yaw caliper, using the yaw caliper to carry the preset load; if the preset load is greater than the braking capacity of the yaw caliper, dividing the preset load based on the braking capacity of the yaw caliper to obtain a first load and a second load; wherein the first load is a load portion within the braking capacity of the yaw caliper, and the second load is a load portion of the preset load greater than the braking capacity; using the yaw caliper in the yaw drive device to carry the first load, and using the yaw drive motor in the yaw drive device to carry the second load; it can be understood that if the preset load is not greater than the braking capacity of the yaw caliper, then the stiffness of the meshing tooth is the first fatigue condition stiffness; if the preset load is greater than the braking capacity of the yaw caliper and less than the limit load, then the stiffness of the meshing tooth is the second fatigue condition stiffness.

[0056] The above-mentioned process of using the yaw drive motor in the yaw drive device to carry the second load may specifically include: setting the total torque of all drive teeth of the yaw drive motor to the first target total torque, and setting the torque of a single drive tooth to the first target torque based on the first target total torque; using the yaw drive motor in the yaw drive device, and carrying the second load based on the first target torque of a single drive tooth; in a specific implementation, the total torque of the drive tooth is set to 1000KNM (unit stress under unit load). The torque of a single drive tooth is set to 1000 / n, and the force is F=1000 / n / r, where n is the number of drives and r is the meshing radius. If the second load is greater than the load threshold of a single yaw drive motor, different yaw drive motors in the yaw drive device are used to carry the second load in sequence. In a specific embodiment, if there are 5 yaw drive motors in the yaw drive device, and the load threshold of each motor is the same, when the second load is not greater than the load threshold of the first motor, only the first motor is subjected to force; when the second load is greater than the load threshold of the first motor, the excess portion is subjected to force in sequence by the remaining yaw drive motors according to actual conditions. It should be noted that drive tooth deformation = drive force / drive stiffness. In order to prevent the first force-driven, that is, the first yaw drive motor is always subjected to force, when the drive force reaches the force that the drive itself can bear, the original drive tooth deformation is multiplied by an infinite multiple to make the deformation infinite, so that the second drive begins to be subjected to force; it should be noted that Figure 7 As shown, the load is transferred between the yaw drive motors in the following manner: the motor load parachute transfers the force from the motor body to the motor tooth end, and the gear ring load parachute transfers the force transferred by the motor to the gear ring meshing teeth, that is, the motor load parachute of the first yaw drive motor transfers the load received by the first motor to the motor tooth end of the next yaw drive motor through the transmission prosthesis; wherein the stiffness of the motor tooth end and the transmission prosthesis is sufficiently rigid.

[0057] The process of determining the transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness can specifically include: if the meshing tooth stiffness is the limit working condition stiffness, the total torque of all drive teeth is set to the second target total torque corresponding to the total braking capacity of all yaw drive motors, and the torque of a single drive tooth is set to the second target torque based on the second target total torque; using the yaw drive motor in the yaw drive device, and carrying the second load based on the second target torque of a single drive tooth. Specifically, the total torque of the drive teeth is set to the total braking capacity M of the drive. The torque of a single drive tooth is set to M / n, and the force is F=M / n / r, where n is the number of drives and r is the meshing radius. By analyzing the transmission path of the load in the yaw drive device according to the preset load and the meshing tooth stiffness, the accurate transmission path of the load on the yaw drive device under different load conditions is obtained.

[0058] It can be seen that this embodiment compares the preset load with the braking capacity of the yaw caliper, and compares the second load that is larger than the braking capacity of the yaw caliper with the load threshold of a single yaw drive motor, and accurately analyzes the exact transmission path of the preset load on the yaw drive device according to different load conditions, thereby accurately grasping the force condition of the yaw drive device, and then being able to maintain the wind turbine according to the force condition of the yaw drive device, thereby improving the stability of the wind turbine during operation.

[0059] Based on the above embodiments, it can be seen that the present application describes the process of determining the load transfer path on the yaw drive device according to the meshing tooth stiffness and the finite element model. Next, the present application will explain the modeling process of the yaw drive device. Figure 8 As shown, the embodiment of the present application discloses a finite element model construction method, including:

[0060] Step S21 : performing a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device.

[0061] In this embodiment, the process of performing a three-dimensional modeling operation on the yaw drive device may specifically include: setting the meshing teeth in the yaw drive device as a preset spring unit, and setting the transmission prosthesis in the yaw drive device as a preset beam unit; performing a three-dimensional modeling operation on the yaw drive device by using the preset spring unit corresponding to the meshing teeth and the preset beam unit corresponding to the transmission prosthesis. In a specific embodiment, the preset spring unit may be a spring unit Combin39, and the preset beam unit may be a Beam188 unit. It should be noted that the meshing teeth include the motor teeth of the yaw drive motor and the ring teeth of the yaw gear ring in the yaw drive device. The force mode of the meshing teeth in the preset direction is: the force in the preset direction is directly loaded on the node, and the nodes at both ends of the meshing teeth are respectively loaded with forces of equal magnitude and opposite directions; the stiffness of the spring unit may be set according to the braking capacity of the yaw drive motor, and the stiffness of the beam unit is consistent with the transmission stiffness of the yaw drive motor. It should be noted that the spring unit Combin39 is a nonlinear unidirectional unit, and in the corresponding cylindrical coordinate system constructed for the yaw drive device, it only bears the transmission of the circumferential direction force. By using the preset spring unit and the preset beam unit to model the yaw drive device, it is ensured that the generated yaw drive model can accurately reflect the mechanical properties of the yaw drive device.

[0062] Step S22: mesh the yaw drive model to obtain a mesh model corresponding to the yaw drive model.

[0063] In this embodiment, the operation of meshing the yaw drive model can be performed manually by an operator according to actual application requirements or the physical properties of the yaw drive device, or the yaw drive model can be automatically meshed using relevant meshing software, and the automatically meshed grid can be manually adjusted. The specific meshing method is not limited herein.

[0064] Step S23: importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model.

[0065] It is understandable that the mesh model generated according to the yaw drive model cannot be used directly for analysis. Due to the complexity of the shape of the yaw drive model and the complexity of the mesh generation process, the divided mesh may have overlapping nodes or units, unreasonable numbering order and other problems. These problems will lead to unreasonable analysis results. Therefore, after obtaining the mesh model, it is necessary to analyze the mesh model through the preset finite element analysis software. The finite element analysis software can be selected according to the actual application requirements and is not specifically limited here.

[0066] It can be seen that, in this embodiment, by using the preset spring unit and the preset beam unit to model the yaw drive device, it is ensured that the generated yaw drive model can accurately reflect the mechanical properties of the yaw drive device; by using the finite element analysis software to analyze the mesh model to obtain the finite element model, the reliability of the generated finite element model is ensured, and the reliability of the analysis result of the yaw drive device is improved.

[0067] See also Fig. 9 As shown, an embodiment of the present invention discloses a load transfer path determination device, comprising:

[0068] A mesh model acquisition module 11 is used to perform a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and to mesh the yaw drive model to obtain a mesh model corresponding to the yaw drive model;

[0069] A finite element model acquisition module 12 is used to import the mesh model into a preset finite element analysis software, and analyze the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model;

[0070] The path determination module 13 is used to determine the meshing tooth stiffness of the meshing teeth in the target finite element model according to the preset load acting on the target finite element model, and determine the transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness.

[0071] It can be seen that the present application determines the stiffness of the meshing teeth according to the load acting on the yaw drive device, and determines the load transmission path in the yaw drive device using the finite element model obtained by modeling and the stiffness of the meshing teeth, thereby accurately grasping the force conditions of the yaw drive device, thereby being able to improve the stability of the wind turbine during operation.

[0072] In some specific embodiments, the grid model acquisition module 11 specifically includes:

[0073] a meshing tooth setting unit, used to set the meshing teeth in the yaw drive device as a preset spring unit, and to set the transmission dummy in the yaw drive device as a preset beam unit;

[0074] A model building unit is used to perform a three-dimensional modeling operation on the yaw drive device by using the preset spring unit corresponding to the meshing teeth and the preset beam unit corresponding to the transmission prosthesis.

[0075] In some specific embodiments, the path determination module 13 specifically includes:

[0076] A stiffness determination unit is used to analyze the preset load currently acting on the target finite element model, and determine the meshing tooth stiffness of the meshing tooth in the target finite element model according to the corresponding analysis result; wherein, when the analysis result characterizes that the working condition of the target finite element model is a fatigue condition / limit condition, the meshing tooth stiffness is the corresponding fatigue condition stiffness / limit condition stiffness.

[0077] In some specific embodiments, the path determination module 13 specifically includes:

[0078] a load judging unit, configured to judge whether the preset load is greater than the braking capacity of the yaw caliper in the yaw drive device if the meshing tooth stiffness is the fatigue condition stiffness;

[0079] a load bearing unit, configured to use the yaw caliper to bear the preset load if the preset load is not greater than the braking capacity of the yaw caliper;

[0080] a load splitting unit, configured to split the preset load based on the braking capacity of the yaw caliper to obtain a first load and a second load if the preset load is greater than the braking capacity of the yaw caliper; wherein the first load is a load portion within the braking capacity of the yaw caliper, and the second load is a load portion of the preset load greater than the braking capacity;

[0081] The load bearing submodule is used to use the yaw caliper in the yaw drive device to bear the first load, and use the yaw drive motor in the yaw drive device to bear the second load.

[0082] In some specific embodiments, the load bearing submodule specifically includes:

[0083] a first torque setting unit, configured to set the total torque of all driving teeth of the yaw drive motor to a first target total torque, and to set the torque of a single driving tooth to a first target torque based on the first target total torque;

[0084] The second load bearing unit is configured to use the yaw drive motor in the yaw drive device to bear the second load based on the first target torque of a single drive tooth.

[0085] In some specific embodiments, the load bearing submodule specifically includes:

[0086] A third load bearing unit is configured to use different yaw drive motors in the yaw drive device to bear the second load in sequence if the second load is greater than a load threshold of a single yaw drive motor.

[0087] In some specific implementations, the path determination module 13 specifically includes:

[0088] a second torque setting unit, configured to set the total torque of all the driving teeth to a second target total torque corresponding to the total braking capacity of all the yaw drive motors if the meshing tooth stiffness is the limit working condition stiffness, and to set the torque of a single driving tooth to a second target torque based on the second target total torque;

[0089] A fourth load bearing unit is configured to use the yaw drive motor in the yaw drive device to bear the second load based on the second target torque of a single drive tooth.

[0090] Furthermore, the present application also discloses an electronic device. Fig.10 This is a structural diagram of an electronic device 20 according to an exemplary embodiment. The content in the diagram cannot be regarded as any limitation on the scope of use of the present application.

[0091] Fig.10The present invention provides a schematic diagram of the structure of an electronic device 20 provided in an embodiment of the present application. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input / output interface 25, and a communication bus 26. The memory 22 is used to store a computer program, which is loaded and executed by the processor 21 to implement the relevant steps in the load transfer path determination method disclosed in any of the aforementioned embodiments. In addition, the electronic device 20 in this embodiment may specifically be an electronic computer.

[0092] In this embodiment, the power supply 23 is used to provide working voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and the external device, and the communication protocol it follows is any communication protocol that can be applied to the technical solution of the present application, and is not specifically limited here; the input and output interface 25 is used to obtain external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs and is not specifically limited here.

[0093] In addition, the memory 22 as a carrier for storing resources may be a read-only memory, a random access memory, a disk or an optical disk, etc. The resources stored thereon may include an operating system 221, a computer program 222, etc., and the storage method may be temporary storage or permanent storage.

[0094] The operating system 221 is used to manage and control the hardware devices on the electronic device 20 and the computer program 222, which can be Windows Server, Netware, Unix, Linux, etc. In addition to including a computer program that can be used to complete the load transfer path determination method performed by the electronic device 20 disclosed in any of the aforementioned embodiments, the computer program 222 can further include a computer program that can be used to complete other specific tasks.

[0095] Furthermore, the present application also discloses a computer-readable storage medium for storing a computer program; wherein, when the computer program is executed by a processor, the load transfer path determination method disclosed above is implemented. For the specific steps of the method, reference may be made to the corresponding contents disclosed in the above embodiments, and no further description will be given here.

[0096] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0097] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0098] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0099] Finally, 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 "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0100] The technical solution provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for determining a load transfer path, characterized in that: include: Performing a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and performing mesh division on the yaw drive model to obtain a mesh model corresponding to the yaw drive model; Importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model; The meshing tooth stiffness of the meshing teeth in the target finite element model is determined according to the preset load acting on the target finite element model, and the transmission path of the preset load on the yaw drive device is determined based on the target finite element model and using the meshing tooth stiffness.

2. The load transfer path determination method according to claim 1, characterized in that: The three-dimensional modeling operation of the yaw drive device includes: The meshing teeth in the yaw drive device are arranged as a preset spring unit, and the transmission dummy in the yaw drive device is arranged as a preset beam unit; The yaw drive device is subjected to a three-dimensional modeling operation by utilizing the preset spring unit corresponding to the meshing teeth and the preset beam unit corresponding to the transmission dummy.

3. The load transfer path determination method according to claim 1, characterized in that: The step of determining the meshing tooth stiffness of the meshing teeth in the target finite element model according to the preset load acting on the target finite element model comprises: The preset load currently acting on the target finite element model is analyzed, and the meshing tooth stiffness of the meshing tooth in the target finite element model is determined according to the corresponding analysis result; wherein, when the analysis result characterizes that the operating condition of the target finite element model is a fatigue condition / limit condition, the meshing tooth stiffness is the corresponding fatigue condition stiffness / limit condition stiffness.

4. The load transfer path determination method according to claim 3, characterized in that: The step of determining a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness comprises: If the meshing tooth stiffness is the fatigue condition stiffness, determining whether the preset load is greater than the braking capacity of the yaw caliper in the yaw drive device; If the preset load is not greater than the braking capacity of the yaw caliper, using the yaw caliper to bear the preset load; If the preset load is greater than the braking capacity of the yaw caliper, the preset load is divided based on the braking capacity of the yaw caliper to obtain a first load and a second load; wherein the first load is a load portion within the braking capacity of the yaw caliper, and the second load is a load portion of the preset load that is greater than the braking capacity; The first load is carried by the yaw caliper in the yaw drive device, and the second load is carried by the yaw drive motor in the yaw drive device.

5. The load transfer path determination method according to claim 4, characterized in that: The step of using the yaw drive motor in the yaw drive device to carry the second load comprises: Setting the total torque of all driving teeth of the yaw drive motor as a first target total torque, and setting the torque of a single driving tooth as a first target torque based on the first target total torque; The second load is carried by the yaw drive motor in the yaw drive device based on the first target torque of the single drive tooth.

6. The load transfer path determination method according to claim 4, characterized in that: The step of using the yaw drive motor in the yaw drive device to carry the second load comprises: If the second load is greater than a load threshold of a single yaw drive motor, different yaw drive motors in the yaw drive device are used to sequentially and superimpose the second load.

7. The load transfer path determination method according to claim 5, characterized in that: The step of determining a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness comprises: If the meshing tooth stiffness is the limit working condition stiffness, the total torque of all the drive teeth is set to a second target total torque corresponding to the total braking capacity of all the yaw drive motors, and the torque of a single drive tooth is set to a second target torque based on the second target total torque; The second load is carried by the yaw drive motor in the yaw drive device based on the second target torque of the single drive tooth.

8. A load transfer path determination device, characterized in that: include: A mesh model acquisition module is used to perform a three-dimensional modeling operation on the yaw drive device to obtain a yaw drive model corresponding to the yaw drive device, and to mesh the yaw drive model to obtain a mesh model corresponding to the yaw drive model; A finite element model acquisition module, used for importing the mesh model into a preset finite element analysis software, and analyzing the mesh model using the preset finite element analysis software to obtain a target finite element model corresponding to the mesh model; A path determination module is used to determine the meshing tooth stiffness of the meshing teeth in the target finite element model according to a preset load acting on the target finite element model, and to determine a transmission path of the preset load on the yaw drive device based on the target finite element model and using the meshing tooth stiffness.

9. An electronic device, characterized in that: include: Memory, used to store computer programs; A processor, configured to execute the computer program to implement the load transfer path determination method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store a computer program, which, when executed by a processor, implements the load transfer path determination method according to any one of claims 1 to 7.

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