Calibration methods, devices, equipment, media and products for transport tooling

Abstract

The present application discloses a method, device, equipment, medium and product for checking transport jigs. A finite element model corresponding to the wind turbine blades is established based on the basic parameter information of the wind turbine blades, and a finite element model corresponding to the transport jig is established based on the structural information of the transport jigs, and the load information of the wind turbine blades and the transport jigs under simulated transport conditions is determined, and then the load information and the finite element model are subjected to finite element analysis to obtain the influencing index of the mechanical properties of the wind turbine blades under the coupling effect of the transport jigs, thereby obtaining the check result. According to the embodiment of the present application, the workload of the finite element analysis process can be reduced, the processing efficiency can be improved, and the influence of the coupling effect of the wind turbine blades and the transport jigs on the transport jigs is taken into account, thereby improving the accuracy of the check result of the transport jigs, thereby avoiding damage to the wind turbine blades due to damage to the structure of the transport jigs during transportation, and improving the safety of the blades during transportation.

Description

Technical Field

[0001] The present application belongs to the field of calibration technology, and in particular, relates to a calibration method, device, equipment, medium and product for transport tooling. Background Art

[0002] Wind turbine blades are lightweight structures that convert wind energy into mechanical energy. To prevent wind turbine blades from being damaged during transportation, it is necessary to calibrate the transport equipment used for wind turbine blades.

[0003] However, in the related art, during the verification process of the transport tooling, the wind turbine blades are usually assumed to be rigid bodies, without considering the characteristics of the wind turbine blades themselves as flexible bodies. That is, the influence of the coupling interaction between the wind turbine blades and the transport tooling on the force of the transport tooling is not considered, resulting in the risk of failure in the design of the transport tooling, thereby increasing the risk of blade transportation. Summary of the invention

[0004] The embodiments of the present application provide a method, device, equipment, medium and product for calibrating transport tooling, which can improve the accuracy of the calibration results of the transport tooling.

[0005] In a first aspect, an embodiment of the present application provides a method for checking a transport tool, wherein the transport tool is applied to a wind turbine blade, and the method comprises:

[0006] Setting a simulated transportation condition of the wind turbine blade;

[0007] Determining load information of the wind turbine blade and the transport tooling under the simulated transport condition;

[0008] Obtaining basic parameter information of the wind turbine blade and structural information of the transport tooling;

[0009] Establishing a first finite element model corresponding to the wind turbine blade according to the basic parameter information;

[0010] Establishing a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling;

[0011] Under the boundary conditions of the simulated transport condition, finite element analysis is performed on the load information, the first finite element model and the second finite element model to obtain an influence index of the mechanical properties of the wind turbine blade under the coupling effect of the transport tooling;

[0012] According to the mechanical performance index of the material of the transport tooling, the mechanical performance influencing index is judged to obtain the verification result of the transport tooling.

[0013] In a second aspect, an embodiment of the present application provides a device for checking a transport tool, wherein the transport tool is applied to a wind turbine blade, and the device comprises:

[0014] A setting module, used for setting the simulated transportation condition of the wind turbine blade;

[0015] A determination module, used to determine load information of the wind turbine blade and the transport tooling under the simulated transport condition;

[0016] An acquisition module, used to acquire basic parameter information of the wind turbine blade and structural information of the transport tooling;

[0017] A first establishing module, used to establish a first finite element model corresponding to the wind turbine blade according to the basic parameter information;

[0018] A second establishing module, used to establish a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling;

[0019] An analysis module, configured to perform finite element analysis on the load information, the first finite element model and the second finite element model under the boundary conditions of the simulated transport condition, so as to obtain an influence index of the mechanical properties of the wind turbine blade under the coupling effect of the transport tooling;

[0020] The verification module is used to judge the mechanical property influencing index according to the mechanical property index of the material of the transport tooling, and obtain the verification result of the transport tooling.

[0021] In a third aspect, an embodiment of the present application provides an electronic device, the electronic device comprising: a processor and a memory storing computer program instructions;

[0022] When the processor executes the computer program instructions, the steps of the method for verifying transport tooling as described in any one of the embodiments of the first aspect are implemented.

[0023] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the steps of the method for verifying transport tooling as described in any one of the embodiments of the first aspect are implemented.

[0024] In a fifth aspect, an embodiment of the present application provides a computer program product. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the steps of the method for verifying transport tooling as described in any one of the embodiments of the first aspect.

[0025] The verification method, device, equipment, medium and product of the transport tooling of the embodiment of the present application establishes a finite element model corresponding to the wind turbine blade based on the basic parameter information of the wind turbine blade, establishes a finite element model corresponding to the transport tooling based on the structural information of the transport tooling, and determines the load information of the wind turbine blade and the transport tooling under simulated transportation conditions, and then performs finite element analysis on the load information and the finite element model, which can reduce the workload of the finite element analysis process and improve processing efficiency; thereby, the influencing index of the mechanical properties of the transport tooling is obtained, and then the verification result is obtained. In addition, since the influence of the coupling effect of the wind turbine blade and the transport tooling on the transport tooling is taken into account, the accuracy of the verification result of the transport tooling can be improved, thereby avoiding damage to the wind turbine blades due to damage to the structure of the transport tooling during transportation, and improving the safety of the blades during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 It is a flow chart of a method for checking a transport tool provided in an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of an exemplary wind turbine blade and a transport tool used therefor provided in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of an exemplary divided wind turbine blade model provided in an embodiment of the present application;

[0030] FIG4( a ) is a distribution cloud diagram of the yield stress of an exemplary blade root transport tooling provided in an embodiment of the present application;

[0031] FIG4( b ) is a distribution cloud diagram of the yield stress of an exemplary blade tip transport tooling provided in an embodiment of the present application;

[0032] FIG5( a ) is a distribution cloud diagram of the buckling load factor of an exemplary blade root transport tooling provided in an embodiment of the present application;

[0033] FIG5( b ) is a distribution cloud diagram of the buckling load factor of an exemplary blade tip transport tooling provided in an embodiment of the present application;

[0034] Figure 6 It is a structural schematic diagram of a verification device for transport tooling provided in an embodiment of the present application;

[0035] Figure 7 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0037] 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 statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0038] It should be noted that the acquisition, storage, use and processing of data in the embodiments of the present application are in compliance with the relevant provisions of national laws and regulations.

[0039] The coupling effect is used to represent the coupling interaction between wind turbine blades and transport tools, that is, the influence of gravity, acceleration, wind load, wave load, etc. on the blades under certain transportation conditions, which is transmitted to the transport tools, and the deformation of the blades under the action of load, thereby affecting the transport tools.

[0040] Yield stress is used to indicate the stress generated by the transport tooling used when the wind turbine blades are deformed under the action of gravity, acceleration, wind load, wave load, etc. In addition, to ensure the safety of the transportation process, the yield stress of the transport tooling must not exceed its allowable stress, that is, σ≤[σ].

[0041] The allowable stress can be determined by calculation using the following formula (1):

[0042]

[0043] Among them, σ srepresents the yield strength of the material; n represents the safety factor.

[0044] For example, referring to the design strength indicators of steel in Table 4.4.1 of GB50017 "Code for Design of Steel Structures", the allowable stress of Q345D is 305MPa when the thickness is less than 16mm.

[0045] Buckling Load Factor (BLF) is used to express the factor of safety against buckling or the ratio of buckling load to applied load.

[0046] Specifically, Table 1 lists the explanations of possible BLF values:

[0047] Table 1

[0048]

[0049] Wind turbine blades are lightweight structures that convert wind energy into mechanical energy. Since wind turbine blades have strict requirements on strength, stiffness and quality, they have complex curved surface designs, complex composite material lay-ups and complex reinforcement structure designs, which means that wind turbine blades have many types of materials and uneven mass distribution.

[0050] In order to prevent wind turbine blades from being damaged during transportation, it is necessary to calibrate the transport jigs used for wind turbine blades. However, in the related art, the wind turbine blade model is directly used in the finite element calibration of the transport jigs used for wind turbine blades, which has high computational complexity and low efficiency.

[0051] In addition, in the related art, during the verification of the transport tooling, the wind turbine blades are usually assumed to be rigid bodies, and only the weight and center of gravity of the blades are considered, without considering the characteristics of the wind turbine blades as flexible bodies. That is, the influence of the coupling interaction between the wind turbine blades and the transport tooling on the force of the transport tooling is not considered, resulting in the risk of failure in the design of the transport tooling, thereby increasing the risk of blade transportation.

[0052] In order to solve the problems of related technologies, the embodiments of the present application provide a method, device, equipment, medium and product for calibrating transport tooling.

[0053] The following is a detailed description of the method for calibrating the transport tooling provided in the embodiment of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0054] Figure 1 The flowchart of the method 100 for checking the transport tooling according to the embodiment of the present application is shown. In addition, the transport tooling in the method 100 for checking the transport tooling can be applied to wind turbine blades.

[0055] like Figure 1As shown, the transport tool verification method 100 may specifically include the following steps:

[0056] S101, setting a simulated transportation condition of a wind turbine blade;

[0057] S102, determining load information of the wind turbine blade and the transport tooling under the simulated transport condition;

[0058] S103, obtaining basic parameter information of the wind turbine blade and structural information of the transport tooling;

[0059] S104, establishing a first finite element model corresponding to the wind turbine blade according to the basic parameter information;

[0060] S105, establishing a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling;

[0061] S106. Under the boundary conditions of the simulated transport condition, perform finite element analysis on the load information, the first finite element model, and the second finite element model to obtain an influence index of the mechanical properties of the wind turbine blade under the coupling effect of the transport tooling;

[0062] S107, judging the influencing index of the mechanical properties according to the mechanical properties index of the material of the transport tooling, and obtaining the verification result of the transport tooling.

[0063] Therefore, a finite element model corresponding to the wind turbine blade is established based on the basic parameter information of the wind turbine blade, and a finite element model corresponding to the transport tooling is established based on the structural information of the transport tooling, and the load information of the wind turbine blade and the transport tooling under the simulated transportation condition is determined, and then the load information and the finite element model are subjected to finite element analysis, rather than directly using the refined model corresponding to the actual model for finite element analysis, which can reduce the workload of the finite element analysis process and improve processing efficiency; thereby, the influencing index of the mechanical properties of the transport tooling is obtained, and then the verification result is obtained. In addition, since the influence of the coupling effect of the wind turbine blade and the transport tooling on the transport tooling is considered, the accuracy of the verification result of the transport tooling can be improved, thereby avoiding damage to the wind turbine blades due to damage to the structure of the transport tooling during transportation, and improving the safety of the blades during transportation.

[0064] The specific implementation methods of the above steps are introduced below.

[0065] It should be noted that in the embodiments of the present application, the transport tooling can be applied to wind turbine blades in a wind turbine generator set, specifically referring to transport aids during the transportation of wind turbine blades, such as transport brackets. The embodiments of the present application do not limit the specific structure of the transport tooling.

[0066] In addition, in the embodiment of the present application, the transport tooling may include a blade root transport tooling and a blade tip transport tooling. Specifically, Figure 2 FIG. 1 shows a schematic diagram of an exemplary wind turbine blade and the transport tooling used therein. Figure 2 As shown, a blade root transport fixture 202 and a blade tip transport fixture 203 are respectively provided at the root and tip of the blade 201 .

[0067] In some embodiments, in step S101, the simulated transport condition can be set to any one of other transport conditions such as land transport condition, sea transport condition or hoisting condition, which is not limited in this embodiment. Specifically, the setting of the simulated transport condition of the wind turbine blade can be set according to the location of the wind farm of the wind turbine blade. For example, when the wind farm is located in a place with convenient transportation and can be reached by highway, the simulated transport condition can be set to the land transport condition.

[0068] In some embodiments, after step S101, the boundary conditions corresponding to the simulated transport conditions may also be determined. Specifically, the boundary conditions may include the environmental boundary conditions corresponding to the simulated transport conditions and the use boundary conditions of the transport tooling under the simulated transport conditions. Among them, for the environmental boundary conditions, it is necessary to meet the minimum requirements for environmental conditions specified in the relevant specifications (for example, IEC specifications); for the use boundary conditions of the transport tooling under the simulated transport conditions, that is, the constraint conditions of the transport tooling when in use, taking the land transport condition as an example, it may be the specific fixing method of the transport tooling to the vehicle during land transport.

[0069] In some embodiments, in step S102, the load information may include gravity, acceleration, wind load, wave load, etc. It should be noted that the corresponding load information is different for different simulated transportation conditions. For example, for land transportation conditions, the loads on wind turbine blades and transportation tools may include gravity, acceleration, wind load, etc.; for sea transportation conditions, the loads on wind turbine blades and transportation tools may include acceleration, wind load, wave load, etc. In addition, wind turbine blades will deform under the action of loads, so the deformation of wind turbine blades will have a force effect on transportation tools. In this way, the coupling effect between wind turbine blades and transportation tools will be further considered in the subsequent finite element analysis, so as to improve the accuracy of the verification results of transportation tools.

[0070] During specific implementation, in response to the transportation condition being a land transportation condition, the gravity, acceleration and wind load of the wind turbine blade and the transportation tooling under the land transportation condition are determined; in response to the transportation condition being a sea transportation condition, the acceleration, wind load and wave load of the wind turbine blade and the transportation tooling under the sea transportation condition are determined; in response to the transportation condition being a hoisting condition, the gravity and acceleration of the wind turbine blade and the transportation tooling under the hoisting condition are determined.

[0071] The following lists the corresponding exemplary load information and data under different transportation conditions: when the simulated transportation condition is a land transportation condition, the exemplary load data may include 1.5g in the gravity direction, 0.5g in the blade axial direction and 0.5g in the chord direction, and the wind load may refer to relevant specifications (for example, building structure load specifications); when the simulated transportation condition is a sea transportation condition, the exemplary load data may include the maximum accelerations in the vertical, longitudinal and lateral directions of 9.2m / s respectively. 2 (excluding gravity), 3.8m / s2, 7m / s 2 , splash force and wind load are both 1kN / m 2 ; When the simulated transportation condition is a lifting condition, exemplary load data may include the gravity direction 2g.

[0072] In some embodiments, in step S103, the basic parameter information of the wind turbine blade may include: the shape information of the wind turbine blade (for example, the length, width, height and root roundness of the wind turbine blade, etc.), weight information, center of gravity coordinates, and the posture of the blade under the simulated transportation condition (for example, the wind turbine blade is in a horizontal placement state or a hanging state), and the deformation of the blade under a certain gravity (for example, the deformation of the blade under the gravity corresponding to 1g / 1.5g / 2g, etc.). It should be understood that these basic parameter information have a certain influence on the load of the wind turbine blade under the simulated transportation condition.

[0073] In some embodiments, the structural information of the transport tooling may refer to specific components or structural units of the transport tooling, as well as the structural types (e.g., sheet metal shell structure, body structure, etc.) and material properties corresponding to these components, and the connection methods between these components (e.g., welding).

[0074] In some embodiments, in step S104, a first finite element model corresponding to the wind turbine blade is established. Specifically, the process of establishing the first finite element model may include: performing equivalent processing on the wind turbine blade to obtain a simplified model of the wind turbine blade; dividing the simplified model into a plurality of simplified units; and calculating the density and elastic modulus corresponding to each simplified unit of the simplified model according to the shape information, weight information and center of gravity coordinates of the wind turbine blade, and using the density and elastic modulus corresponding to each simplified unit as the material parameters of the first finite element model.

[0075] It should be understood that, since the more simplified units there are, the higher the computational complexity of the subsequent finite element analysis process, the more time required for finite element analysis and the simplified accuracy of the first finite element model need to be considered, and the appropriate number of simplified units needs to be determined, that is, the number of simplified units should not be too many or too few. Specifically, the preferred range of the number of simplified units can be 6 to 20, and the optional range can be 3 to 150.

[0076] In specific implementation, the division can be performed by continuously adjusting the axial distance of each simplified unit of the wind turbine blade until the weight parameters and the center of gravity coordinates can be fitted to be consistent with the actual parameters of the wind turbine blade obtained above, thereby determining the simplified model after the final division.

[0077] In specific implementation, it can also be divided into sufficiently small simplified units, that is, setting a minimum unit value. It can be understood that this is equivalent to equally dividing the simplified model and assigning a different density value to each simplified unit, thereby obtaining the simplified model after the final division.

[0078] refer to Figure 3 , is an exemplary divided wind turbine blade model of this embodiment. Figure 3 As shown, the model consists of 9 units. Figure 3 The specific meanings of A and B will be explained later.

[0079] Furthermore, based on the shape information, weight information and center of gravity coordinates of the wind turbine blade, the weight and volume corresponding to each simplified unit of the simplified model are calculated respectively, and the corresponding density is calculated based on the weight and volume; and, based on the weight corresponding to each simplified unit, a corresponding gravity load is applied to each simplified unit to obtain a corresponding deformation, thereby calculating a corresponding elastic modulus based on the deformation.

[0080] In specific implementation, since wind turbine blades can undergo elastic deformation, a unified isotropic constitutive model can be assigned to each simplified unit, and the undetermined parameters of the model are the elastic modulus E and density ρ. In other words, the elastic modulus E corresponding to each simplified unit needs to be determined one by one. i and density ρ i , where i represents the number corresponding to the simplified unit. Figure 3 For example, the value range of i is 1 to 9.

[0081] In the specific implementation, fixed constraints are set at the junction of unit 8 and unit 9 of the refined model and simplified model of the wind turbine blade, and then the simplified unit 9 of the simplified model is given an initial elastic modulus And density ρ9. It can be understood that the refined model is the model corresponding to the actual wind turbine blade, such as Figure 3 As shown, the corresponding refined units are all represented by A (for example, A1), and the simplified units of the simplified model are all represented by B (for example, B1).

[0082] Among them, the density ρ i It can be calculated by the following formula (2):

[0083]

[0084] Among them, m i represents the weight of unit i measured by the refined model of the wind turbine blade; V i represents the volume of unit i measured through a simplified model of the wind turbine blade.

[0085] Furthermore, gravity loads are applied to the refined model and the simplified model to obtain the corresponding tip deformation d9, and thus the corrected value of the elastic modulus can be calculated by the following formula (3):

[0086]

[0087] Thus, the simplified model can be given a correction value of the elastic modulus The tip deformation is calculated again, and the second correction value of the elastic modulus is calculated by formula (3). In this way, the elastic modulus E9 is finally obtained through multiple corrections of the elastic modulus.

[0088] In this way, the elastic modulus E corresponding to each simplified unit is calculated in turn. i and density ρ i , so that the first finite element model has higher accuracy.

[0089] In some embodiments, the process of establishing the first finite element model further includes processing geometric parameters of the wind turbine blade, that is, determining the geometric parameters of the first finite element model. It is understandable that since the wind turbine blade is a sheet shell structure, it can be processed by extracting the mid-surface and dividing the 2D grid.

[0090] In some embodiments, in step S105, since the connection between the components or structural units of the transport tooling is welding, in the process of establishing the second finite element model, a common node method can be used for simulation when dividing the mesh.

[0091] In some embodiments, the transport tooling may include a sheet shell structure and a body structure; for the sheet shell structure, a number of 2D sheet shell units are obtained by extracting the mid-surface and dividing the 2D grid; for the body structure, a number of 3D body units are obtained by dividing the 3D network. In this way, these 2D sheet shell units and 3D body units can be used as the second finite element model corresponding to the transport tooling. In this way, the unit type, material and properties corresponding to each component of the transport tooling can be established respectively, and these parameters can be assigned to each component.

[0092] In addition, in some embodiments, in the process of establishing the second finite element model, geometry cleaning can be performed before meshing, and mesh checking can be performed after meshing. In this way, mesh quality can be automatically checked to improve meshing quality.

[0093] In some embodiments, in step S106, the boundary conditions, load information, first finite element model and second finite element model obtained above can be imported into finite element software for finite element analysis to obtain the mechanical performance influence index of the wind turbine blade on the transport tooling. The mechanical performance influence index represents the mechanical performance influence index of the wind turbine blade under the coupling effect on the transport tooling, and specifically, can include yield stress and buckling load factor.

[0094] In some embodiments, after step S106, a distribution cloud map corresponding to the yield stress of several structural units of the transport tooling under the simulated transport condition may be generated. Further, the distribution cloud map is analyzed, the maximum value of the yield stress is determined as the maximum yield stress, and the structural unit corresponding to the maximum yield stress is determined as the weak structural unit of the transport tooling. In this way, the weak structural unit can be consolidated and strengthened to avoid the risk of failure of the transport tooling.

[0095] In addition, in some embodiments, a distribution cloud diagram corresponding to the buckling load factors of several structural units of the transport tooling under the simulated transport condition may also be generated. It should be noted that, in order to facilitate the judgment of the verification results, the buckling load factors obtained by the finite element analysis are processed as absolute values.

[0096] In some embodiments, in step S107, the mechanical property index of the material of the transport jig may include an allowable stress, that is, the allowable stress corresponding to the material property of the transport jig. In this way, the process of judging the mechanical property influencing index to obtain the verification result of the transport jig may include: in response to the maximum yield stress obtained by finite element analysis being less than or equal to the allowable stress, and in response to the absolute value of the buckling load factor being greater than 1, determining that the verification result of the transport jig meets the safety transportation requirements. It can be understood that the safety transportation requirements represent the safe transportation of wind turbine blades that can be applied under simulated transportation conditions.

[0097] In this way, the deformation of wind turbine blades under certain working conditions and the influence of wind loads and wave loads on the transport tooling are taken into consideration. Thus, the problem that the verification scheme in the relevant technology does not take into account the coupling interaction between wind turbine blades and transport tooling, resulting in the risk of design failure of the transport tooling and thus the transportation risk of the wind turbine blades can be avoided.

[0098] In other words, the solution of this application makes the finite element verification analysis of the transport tooling closer to the actual transportation situation, so that the verification analysis results obtained are more accurate, and the transport tooling after finite element verification analysis optimization improves the safety of the blades during transportation. Furthermore, it avoids blade damage caused by damage to the transport tooling structure during transportation under complex transportation conditions.

[0099] In addition, this embodiment also provides the mechanical properties influencing index data and verification results of the finite element analysis.

[0100] The simulated transport condition is land transport condition. The material of the transport tooling is Q345D, and the elastic modulus is 2.06e+11N / m 2 , Poisson's ratio is 0.28, mass density is 7850kg / m 3 Taking the yield strength of 345MPa as an example, Figure 4(a) shows the distribution cloud diagram of the yield stress of the blade root transport fixture, and Figure 4(b) shows the distribution cloud diagram of the yield stress of the blade tip transport fixture; Figure 5(a) shows the distribution cloud diagram of the buckling load factor of the blade root transport fixture, and Figure 5(b) shows the distribution cloud diagram of the buckling load factor of the blade tip transport fixture.

[0101] As shown in Figure 4(a), the maximum yield stress of the blade root transport fixture is 213 MPa, and its maximum yield stress occurs at the intersection of the horizontal beam and the vertical beam, that is, the weak structural unit of the blade root transport fixture is the intersection of the horizontal beam and the vertical beam; as shown in Figure 4(b), the maximum yield stress of the blade tip transport fixture is 252 MPa, and its maximum yield stress occurs at the intersection of the transverse stiffened plate and the vertical stiffened plate, that is, the weak structural unit of the blade tip transport fixture is the intersection of the transverse stiffened plate and the vertical stiffened plate.

[0102] As shown in Figure 5(a), the buckling load factor of the blade root transport fixture is 14.227; as shown in Figure 5(b), the buckling load factor of the blade tip transport fixture is 9.778. That is, both are greater than 1.

[0103] Therefore, the yield stress of the blade root transport fixture and the blade tip transport fixture are both less than the allowable stress of 305 MPa, and the buckling load factors are both greater than 1, indicating that the design of the transport fixture under land transportation conditions meets the safe transportation requirements of wind turbine blades.

[0104] In addition, a comparison table of the mechanical performance influencing index data obtained by the solution of this embodiment and the solution in the related art that does not consider the coupling effect between the wind turbine blade and the transport tooling is provided, as shown in Table 2.

[0105] Table 2

[0106]

[0107] It can be seen from Table 2 that the yield stress value of the scheme that does not consider the coupling effect between the wind turbine blade and the transport tooling is much smaller than the yield stress value of the scheme of this embodiment, that is, the deformation and mass distribution of the wind turbine blade have a greater impact on the yield stress of the transport tooling. Therefore, if the coupling effect is not considered during the verification of the transport tooling, the design of the transport tooling will have a risk of failure, thereby causing a transportation risk for the wind turbine blades. Therefore, the scheme of this embodiment makes the verification result more accurate, thereby improving the safety of the wind turbine blades during transportation.

[0108] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0109] Based on the same technical concept, corresponding to any of the above-mentioned embodiments and methods, the present application further provides a transport tool calibration device 600. Moreover, the transport tool of the transport tool calibration device 600 is applied to wind turbine blades.

[0110] like Figure 6 As shown, the verification device 600 of the transport tool may include:

[0111] A setting module 601 is used to set the simulated transportation condition of the wind turbine blade;

[0112] A determination module 602 is used to determine load information of the wind turbine blade and the transport tooling under the simulated transport condition;

[0113] An acquisition module 603 is used to acquire basic parameter information of the wind turbine blade and structural information of the transport tooling;

[0114] A first establishing module 604, configured to establish a first finite element model corresponding to the wind turbine blade according to the basic parameter information;

[0115] A second establishing module 605 is used to establish a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling;

[0116] An analysis module 606 is used to perform finite element analysis on the load information, the first finite element model and the second finite element model under the boundary conditions of the simulated transportation condition to obtain an influence index of the mechanical performance of the wind turbine blade under the coupling effect of the transportation tooling;

[0117] The verification module 607 is used to judge the mechanical property influencing index according to the mechanical property index of the material of the transport tooling, and obtain the verification result of the transport tooling.

[0118] In some embodiments, the mechanical property influencing index includes yield stress and buckling load factor; the mechanical property index of the material of the transport tooling includes allowable stress. The verification module 607 is specifically used to determine that the verification result of the transport tooling meets the safety transportation requirements in response to the maximum yield stress being less than or equal to the allowable stress, and in response to the absolute value of the buckling load factor being greater than 1; the safety transportation requirements represent the safe transportation of the wind turbine blades that can be applied under the simulated transportation conditions.

[0119] In some embodiments, the transport tooling verification device 600 further includes a generation module ( Figure 6 (not shown in the figure), the generating module is used to generate a distribution cloud diagram corresponding to the yield stress of several structural units of the transport tooling under the simulated transport condition; analyze the distribution cloud diagram, determine the maximum value of the yield stress as the maximum yield stress; determine the structural unit corresponding to the maximum yield stress as the weak structural unit of the transport tooling.

[0120] In some embodiments, the simulated transport condition may be any one of a land transport condition or a sea transport condition. The determination module 602 is specifically configured to determine the gravity, acceleration and wind load of the wind turbine blade and the transport tooling under the land transport condition in response to the transport condition being a land transport condition; and to determine the acceleration, wind load and wave load of the wind turbine blade and the transport tooling under the sea transport condition in response to the transport condition being a sea transport condition.

[0121] In some embodiments, the basic parameter information of the wind turbine blade includes: shape information, weight information and center of gravity coordinates. The first establishment module 604 is specifically used to perform equivalent processing on the wind turbine blade to obtain a simplified model of the wind turbine blade; divide the simplified model into a plurality of simplified units; calculate the density and elastic modulus corresponding to each simplified unit of the simplified model according to the shape information, weight information and center of gravity coordinates of the wind turbine blade, and use the density and elastic modulus corresponding to each simplified unit as the first finite element model.

[0122] In some embodiments, the transport tooling includes a sheet shell structure and a body structure. The second establishment module 605 is specifically used to extract the mid-surface of the sheet shell structure and divide the 2D grid to obtain a plurality of 2D sheet shell units; divide the body structure into a 3D grid to obtain a plurality of 3D body units; and use the plurality of 2D sheet shell units and the plurality of 3D body units as the second finite element model corresponding to the transport tooling.

[0123] It should be noted that, for the convenience of description, the above device is described in various modules according to their functions. Of course, when implementing this application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0124] The device of the above embodiment is used to implement the verification method of the corresponding transport tooling in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0125] Based on the same technical concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides an electronic device.

[0126] Figure 7 A more specific schematic diagram of the hardware structure of an electronic device provided by this embodiment is shown.

[0127] The electronic device 700 may include a processor 701 and a memory 702 storing computer program instructions.

[0128] Specifically, the processor 701 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0129] The memory 702 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 702 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 702 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 702 is a non-volatile solid-state memory.

[0130] In certain embodiments, the memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical / tangible memory storage device. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present application.

[0131] The processor 701 reads and executes the computer program instructions stored in the memory 702 to implement any one of the transport tooling verification methods in the above embodiments.

[0132] In some examples, the electronic device 700 may further include a communication interface 703 and a bus 710. Figure 7 As shown, the processor 701, the memory 702, and the communication interface 703 are connected via a bus 710 and communicate with each other.

[0133] The communication interface 703 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0134] Bus 710 includes hardware, software or both, and the parts of online data flow billing equipment are coupled to each other. For example, but not limitation, bus 710 may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 710 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

[0135] Exemplarily, the electronic device 700 may be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA).

[0136] Based on the same technical concept, corresponding to any of the above-mentioned embodiments, the present application also provides a non-transitory computer-readable storage medium. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any of the above-mentioned transport tooling verification methods is implemented. Examples of computer-readable storage media include non-transitory computer-readable storage media, such as portable disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, etc.

[0137] Based on the same technical concept, corresponding to any of the above-mentioned embodiments, the present application also provides a computer program product, which includes computer program instructions. In some embodiments, the computer program instructions can be executed by one or more processors of a computer so that the computer and / or the processor execute the verification method of the transport tooling. Corresponding to the execution subject corresponding to each step in each embodiment of the verification method of the transport tooling, the processor that executes the corresponding step can belong to the corresponding execution subject.

[0138] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0139] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0140] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0141] The above reference is according to the method of the embodiment of the present application, the flow chart of the device (system) and the computer program product and / or the block diagram described various aspects of the present application.It should be understood that each square box in the flow chart and / or the block diagram and the combination of each square box in the flow chart and / or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function / action specified in one or more square boxes of the flow chart and / or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square box in the block diagram and / or the flow chart and the combination of the square boxes in the block diagram and / or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.

[0142] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A method for checking transport tooling, characterized in that: The transport tool is applied to a wind turbine blade, and the method comprises: Setting a simulated transportation condition of the wind turbine blade; Determining load information of the wind turbine blade and the transport tooling under the simulated transport condition; Obtaining basic parameter information of the wind turbine blade and structural information of the transport tooling; Establishing a first finite element model corresponding to the wind turbine blade according to the basic parameter information; Establishing a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling; Under the boundary conditions of the simulated transport condition, finite element analysis is performed on the load information, the first finite element model and the second finite element model to obtain an influence index of the mechanical properties of the wind turbine blade under the coupling effect of the transport tooling; According to the mechanical performance index of the material of the transport tooling, the mechanical performance influencing index is judged to obtain the verification result of the transport tooling.

2. The method according to claim 1, characterized in that The transport tooling includes a number of structural units; the influencing index of mechanical properties includes yield stress; Under the boundary conditions of the simulated transport condition, after performing finite element analysis on the load information, the first finite element model and the second finite element model to obtain an index of influence of the mechanical properties of the wind turbine blade under the coupling effect on the transport tooling, the method further includes: Generate a distribution cloud diagram corresponding to the yield stress of several structural units of the transport tooling under the simulated transport condition.

3. The method according to claim 2, characterized in that After generating distribution cloud diagrams corresponding to the yield stress of the plurality of structural units of the transport tooling under the simulated transport condition, the method further includes: Analyze the distribution cloud diagram and determine the maximum value of the yield stress as the maximum yield stress; The structural unit corresponding to the maximum yield stress is determined as the weak structural unit of the transport tooling.

4. The method according to claim 3, characterized in that The mechanical property influencing index also includes a buckling load factor; the mechanical property index of the material of the transport tooling includes an allowable stress; The step of judging the influencing index of the mechanical properties according to the mechanical properties index of the material of the transport tooling to obtain the verification result of the transport tooling includes: In response to the maximum yield stress being less than or equal to the allowable stress, and in response to the absolute value of the buckling load factor being greater than 1, it is determined that the verification result of the transport tooling meets the safety transportation requirements; the safety transportation requirements characterize the safe transportation of the wind turbine blades that can be applied under the simulated transportation conditions.

5. The method according to claim 1, characterized in that The transport tooling comprises a sheet shell structure and a body structure; The step of establishing a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling comprises: Extracting mid-surfaces and dividing 2D grids of the sheet-shell structure to obtain a number of 2D sheet-shell units; Dividing the volume structure into 3D networks to obtain a number of 3D volume units; The plurality of 2D sheet shell units and the plurality of 3D body units are used as a second finite element model corresponding to the transport tooling.

6. The method according to claim 1, characterized in that The basic parameter information of the wind turbine blade includes: shape information, weight information and center of gravity coordinates; The step of establishing a first finite element model corresponding to the wind turbine blade according to the basic parameter information includes: Performing equivalent processing on the wind turbine blade to obtain a simplified model of the wind turbine blade; Dividing the simplified model into a plurality of simplified units; According to the shape information, weight information and center of gravity coordinates of the wind turbine blade, the density and elastic modulus corresponding to each simplified unit of the simplified model are calculated respectively, and the density and elastic modulus corresponding to each simplified unit are used as the first finite element model.

7. The method according to claim 6, characterized in that The step of calculating the density and elastic modulus corresponding to each simplified unit of the simplified model according to the shape information, weight information and center of gravity coordinates of the wind turbine blade comprises: According to the shape information, weight information and center of gravity coordinates of the wind turbine blade, respectively calculate the weight and volume corresponding to each simplified unit of the simplified model, and calculate the corresponding density according to the weight and volume; According to the weight corresponding to each simplified unit, a corresponding gravity load is applied to each simplified unit to obtain a corresponding deformation amount, and then a corresponding elastic modulus is calculated according to the deformation amount.

8. The method according to claim 1, characterized in that The simulated transport condition is any one of a land transport condition and a sea transport condition; The determining of the load information of the wind turbine blade and the transport tooling under the simulated transport condition includes: In response to the transport condition being a land transport condition, determining the gravity, acceleration and wind load of the wind turbine blade and the transport tooling under the land transport condition; In response to the transportation condition being a marine condition, the acceleration, wind load and wave load of the wind turbine blade and the transportation tool under the marine condition are determined.

9. The method according to claim 1, characterized in that: The transport tooling includes: a blade tip transport tooling and a blade root transport tooling.

10. A transport tooling calibration device, characterized in that: The transport tool is applied to wind turbine blades, and the device comprises: A setting module, used for setting the simulated transportation condition of the wind turbine blade; A determination module, used to determine load information of the wind turbine blade and the transport tooling under the simulated transport condition; An acquisition module, used to acquire basic parameter information of the wind turbine blade and structural information of the transport tooling; A first establishing module, used to establish a first finite element model corresponding to the wind turbine blade according to the basic parameter information; A second establishing module, used to establish a second finite element model corresponding to the transport tooling according to the structural information of the transport tooling; An analysis module, configured to perform finite element analysis on the load information, the first finite element model and the second finite element model under the boundary conditions of the simulated transport condition, so as to obtain an influence index of the mechanical properties of the wind turbine blade under the coupling effect of the transport tooling; The verification module is used to judge the mechanical property influencing index according to the mechanical property index of the material of the transport tooling, and obtain the verification result of the transport tooling.

11. An electronic device, characterized in that: The device comprises: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the method for checking the transport tooling as described in any one of claims 1 to 9 is implemented.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method for verifying the transport tooling as described in any one of claims 1 to 9 is implemented.

13. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the method for verifying transport tooling as described in any one of claims 1 to 9.

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