Driven wheel connecting part strength evaluation method and system

Abstract

The invention provides a driven wheel connecting part strength evaluation method and system, and relates to the technical field of vehicles. When the method is executed, grid division is carried out on a driven wheel and a driven wheel connecting part to obtain a plurality of nodes, then node numbers of all the nodes are obtained, a to-be-evaluated area, node numbers of nodes in the to-be-evaluated area, unit numbers of associated units and positions in the associated units are determined from the connecting part, and the to-be-evaluated area and the node numbers of the nodes in the to-be-evaluated area are evaluated. Establishing a first dictionary according to the to-be-evaluated area and the node numbers of the nodes in the to-be-evaluated area; obtaining stress values of nodes of the association units in different calculation steps and establishing a second dictionary; and according to the first dictionary and the second dictionary, generating stress values of all nodes in the to-be-evaluated area, and finally, according to the stress values of all nodes in the to-be-evaluated area, performing strength evaluation on the driven wheel connecting component to realize strength evaluation of the driven wheel connecting component, so that the strength evaluation efficiency of the driven wheel connecting component can be improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method and system for evaluating the strength of a driven wheel connection component. Background Art

[0002] For the finite element strength analysis of traditional transmission and hybrid transmission gears, the purpose of the analysis is to load the three-dimensional force from the driving wheel to the driven wheel and evaluate the strength of the components connected to the driven wheel. In the existing technology, the strength of the driven wheel connection components needs to be manually evaluated, which has low evaluation efficiency.

[0003] In summary, how to improve the efficiency of strength assessment of driven wheel connection components is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In view of this, the present application provides a method and system for evaluating the strength of a driven wheel connection component, aiming to improve the efficiency of the strength evaluation of the driven wheel connection component.

[0005] In a first aspect, the present application provides a method for evaluating the strength of a driven wheel connection component, comprising:

[0006] Meshing the driven wheel and the driven wheel connecting parts to obtain a plurality of nodes;

[0007] Get the node numbers of all nodes;

[0008] Determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components;

[0009] Obtaining a unit number of an associated unit of a node in the area to be evaluated, and a position of the node in the area to be evaluated in the associated unit;

[0010] Establishing a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated;

[0011] Obtaining stress values ​​of the nodes of the associated unit in different calculation steps;

[0012] Establishing a second dictionary according to stress values ​​of the nodes of the associated unit in different calculation steps;

[0013] Generate stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary;

[0014] The strength of the driven wheel connecting component is evaluated according to the stress values ​​of all nodes in the area to be evaluated.

[0015] Optionally, before determining the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components, the method further includes:

[0016] Get the node coordinates of all nodes;

[0017] Establishing a third dictionary according to the node numbers of all the nodes and the node coordinates of all the nodes;

[0018] Determine the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary;

[0019] All the nodes on the same tooth surface are coupled to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface.

[0020] Optionally, determining the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary includes:

[0021] Determine the reference tooth surface;

[0022] Acquire the node coordinates of all nodes on the tooth surface of the reference tooth;

[0023] Rotate all nodes on the tooth surface of the reference tooth according to a preset angle to obtain the node coordinates of all nodes on the tooth surface of the reference tooth after rotation;

[0024] The node numbers corresponding to the node coordinates of all nodes on the tooth surface of the reference tooth after rotation are searched in the third dictionary to obtain the node coordinates and node numbers of all nodes on the same tooth surface.

[0025] Optionally, after coupling all the nodes on the same tooth surface to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface, the method further includes:

[0026] Apply three-axis forces to each reference point;

[0027] According to the three-axis forces applied to each reference point, a calculation step is written for each reference point to obtain the calculation step corresponding to each reference point.

[0028] Optionally, generating stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary includes:

[0029] Generate a plurality of undetermined stress values ​​corresponding to all nodes in the area to be evaluated in the same calculation step according to the first dictionary and the second dictionary;

[0030] Smoothing out multiple undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step;

[0031] Repeating the steps of generating a plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step according to the first dictionary and the second dictionary, and performing a smoothing process on the plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in all calculation steps;

[0032] The maximum undetermined stress value corresponding to all the nodes in the area to be evaluated is determined as the stress value corresponding to all the nodes in the area to be evaluated.

[0033] Optionally, before meshing the driven wheel and the connecting component to obtain a plurality of nodes, the method further includes:

[0034] Determine the model of the driven wheel and the driven wheel connecting parts;

[0035] The driven wheel and the driven wheel connecting component are connected to each other and provided with materials.

[0036] In a second aspect, the present application provides a driven wheel connection component strength assessment system, comprising:

[0037] A partitioning module, used for partitioning the driven wheel and the driven wheel connecting parts into a grid to obtain a plurality of nodes;

[0038] A first acquisition module is used to acquire node numbers of all nodes;

[0039] A first determining module, used to determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components;

[0040] A second acquisition module is used to acquire the unit number of the association unit of the node in the area to be evaluated, and the position of the node in the area to be evaluated in the association unit;

[0041] A first establishing module, used for establishing a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated;

[0042] A third acquisition module is used to obtain stress values ​​of the nodes of the associated unit in different calculation steps;

[0043] A second establishing module, used to establish a second dictionary according to stress values ​​of the nodes of the associated unit in different calculation steps;

[0044] A generating module, used for generating stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary;

[0045] The evaluation module is used to perform strength evaluation on the driven wheel connection component according to the stress values ​​of all nodes in the area to be evaluated.

[0046] Optionally, the system further includes:

[0047] The fourth acquisition module is used to obtain the node coordinates of all nodes;

[0048] A third establishing module, used for establishing a third dictionary according to the node numbers of all the nodes and the node coordinates of all the nodes;

[0049] A second determination module, configured to determine the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary;

[0050] The coupling module is used to couple all the nodes on the same tooth surface to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface.

[0051] Optionally, the second determining module includes:

[0052] A first determining unit, used for determining a reference tooth surface;

[0053] An acquisition unit, used for acquiring the node coordinates of all nodes on the tooth surface of the reference tooth;

[0054] A rotation unit, for rotating all nodes on the tooth surface of the reference tooth according to a preset angle to obtain node coordinates of all nodes on the tooth surface of the reference tooth after rotation;

[0055] The search unit is used to search the third dictionary for the node numbers corresponding to the node coordinates of all nodes on the tooth surface of the reference tooth after rotation, so as to obtain the node coordinates and node numbers of all nodes on the same tooth surface.

[0056] Optionally, the system further includes:

[0057] A processing module, used for applying three-axis forces to each reference point;

[0058] The writing module is used to write the calculation steps for each reference point according to the three-axis forces applied to each reference point, so as to obtain the calculation steps corresponding to each reference point.

[0059] Optionally, the generating module includes:

[0060] A generating unit, configured to generate, according to the first dictionary and the second dictionary, a plurality of undetermined stress values ​​respectively corresponding to all nodes in the area to be evaluated in the same calculation step;

[0061] A smoothing unit is used to smooth a plurality of undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step;

[0062] an execution unit, configured to repeatedly execute the step of generating a plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step according to the first dictionary and the second dictionary, and the step of performing a smoothing process on the plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in all calculation steps;

[0063] The second determining unit is used to determine the maximum undetermined stress value corresponding to all the nodes in the to-be-evaluated area as the stress values ​​corresponding to all the nodes in the to-be-evaluated area.

[0064] Optionally, the system further includes:

[0065] Determine the model of the driven wheel and the driven wheel connecting parts;

[0066] The driven wheel and the driven wheel connecting component are connected to each other and provided with materials.

[0067] In a third aspect, an embodiment of the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a method for evaluating the strength of a driven wheel connection component as described in any one of the first aspect of the embodiments of the present application is implemented.

[0068] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes a method for evaluating the strength of a driven wheel connection component as described in any one of the first aspect of the embodiment of the present application.

[0069] The present application provides a method for evaluating the strength of a driven wheel connecting component. When executing the method, the driven wheel and the driven wheel connecting component are first meshed to obtain a plurality of nodes, and then the node numbers of all nodes are obtained, and then the area to be evaluated and the node numbers of the nodes in the area to be evaluated are determined from the connecting component, and then the unit numbers of the associated units of the nodes in the area to be evaluated and the positions of the nodes in the area to be evaluated in the associated units are obtained, and then a first dictionary is established according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated; the stress values ​​of the nodes of the associated units in different calculation steps are obtained; a second dictionary is established according to the stress values ​​of the nodes of the associated units in different calculation steps; the stress values ​​of all nodes in the area to be evaluated are generated according to the first dictionary and the second dictionary, and finally the strength evaluation of the driven wheel connecting component is performed according to the stress values ​​of all nodes in the area to be evaluated, so as to realize the strength evaluation of the driven wheel connecting component, so as to improve the efficiency of the strength evaluation of the driven wheel connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in this embodiment or 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 some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0071] Figure 1 A flow chart of a method for evaluating the strength of a driven wheel connecting component provided in an embodiment of the present application;

[0072] Figure 2 A schematic structural diagram of a driven wheel and its connecting parts provided in an embodiment of the present application;

[0073] Figure 3 A schematic diagram of a driven wheel and its connecting parts after grid division provided in an embodiment of the present application;

[0074] Figure 4 A schematic diagram of a driven wheel tooth surface after meshing provided in an embodiment of the present application;

[0075] Figure 5 A schematic diagram of a unit provided in an embodiment of the present application;

[0076] Figure 6 A schematic diagram of multiple units provided in an embodiment of the present application;

[0077] Figure 7 A schematic diagram of coupling all nodes on a tooth surface to a reference point provided in an embodiment of the present application;

[0078] Figure 8A schematic diagram of the structure of a driven wheel connection component strength assessment system provided in an embodiment of the present application;

[0079] Fig. 9 A schematic diagram of the structure of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0080] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. The present application provides a method and system for evaluating the strength of a driven wheel connection component, which is used in the field of vehicle technology. The above is only an example and does not limit the application field of the method and system provided by the present application.

[0081] For the finite element strength analysis of traditional transmission and hybrid transmission gears, the purpose of the analysis is to load the three-dimensional force from the driving wheel to the driven wheel and evaluate the strength of the components connected to the driven wheel. In the existing technology, the strength of the driven wheel connection components needs to be manually evaluated, which has low evaluation efficiency.

[0082] The inventor has proposed the technical solution of the present application after research. When executing the method, the driven wheel and the driven wheel connecting component are firstly meshed to obtain a plurality of nodes, and then the node numbers of all the nodes are obtained. Then, the area to be evaluated and the node numbers of the nodes in the area to be evaluated are determined from the connecting component. Then, the unit numbers of the associated units of the nodes in the area to be evaluated and the positions of the nodes in the area to be evaluated in the associated units are obtained. Then, a first dictionary is established according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated. The stress values ​​of the nodes of the associated units in different calculation steps are obtained. A second dictionary is established according to the stress values ​​of the nodes of the associated units in different calculation steps. The stress values ​​of all the nodes in the area to be evaluated are generated according to the first dictionary and the second dictionary. Finally, the strength evaluation of the driven wheel connecting component is performed according to the stress values ​​of all the nodes in the area to be evaluated, so as to realize the strength evaluation of the driven wheel connecting component. In this way, the efficiency of the strength evaluation of the driven wheel connecting component can be improved.

[0083] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0084] See also Figure 1 , Figure 1 A flow chart of a method for evaluating the strength of a driven wheel connecting component provided in an embodiment of the present application includes:

[0085] S101: Meshing the driven wheel and the driven wheel connecting components to obtain a plurality of nodes.

[0086] First determine the model of the driven wheel and the connected parts of the driven wheel, then establish a connection relationship between the driven wheel and its connected parts, and assign materials. The connected parts of the driven wheel include: shaft, housing, etc. For example, Figure 2 As shown, Figure 2 A structural schematic diagram of a driven wheel and its connecting component provided in an embodiment of the present application includes: a driven wheel A and a driven wheel connecting component B, and the driven wheel A and the driven wheel connecting component B have established a connection relationship.

[0087] Then, if Figure 3 As shown, Figure 3 A schematic diagram of a driven wheel and its connecting parts after mesh division is provided in an embodiment of the present application, wherein the driven wheel and the driven wheel connecting parts are meshed to obtain multiple nodes.

[0088] S102: Obtain the node numbers of all nodes.

[0089] Get the node numbers of all nodes. Figure 4 For example, Figure 4 A schematic diagram of a driven wheel tooth surface after meshing is provided in an embodiment of the present application. As shown in the figure, node 1, node 2, node 3, node 4, node 5, node 6, node 7, node 8, node 9, and node 10 are obtained to obtain the node numbers of all nodes.

[0090] S103: Determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components.

[0091] An area to be evaluated is determined in the connection component, and node numbers of nodes in the area to be evaluated are obtained, for example, node 100, node 101, node 102, and the like.

[0092] S104: Obtain the unit number of the associated unit of the node in the to-be-evaluated area, and the position of the node in the to-be-evaluated area in the associated unit.

[0093] Get the unit number of the associated unit of the node in the area to be evaluated, as well as the position of the node in the associated unit, Figure 5 For example, Figure 5A schematic diagram of a unit provided for an embodiment of the present application, assuming that node 100 is a node in the area to be evaluated, and its associated unit is unit 50. Unit 50 has four nodes, namely node 100, node 101, node 102 and node 103. Node 100 is the first node in unit 50, that is, the position of node 100 in unit 50 is determined to be the first node.

[0094] by Figure 6 For example, Figure 6 A schematic diagram of multiple units provided for an embodiment of the present application, assuming that node 110 is a node in the area to be evaluated, and its associated units are unit 51, unit 52, unit 53, unit 54 and unit 55. If unit 51 has four nodes, namely node 70, node 80, node 90 and node 110, the position of node 110 in unit 51 is determined to be the fourth node; if unit 52 has four nodes, namely node 71, node 81, node 110 and node 120, the position of node 110 in unit 52 is determined to be the third node.

[0095] S105: Establish a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated.

[0096] According to the area to be evaluated and the node numbers of the nodes in the area to be evaluated, a first dictionary is established, which includes the unit number and the node number and node order contained in the unit. As mentioned above, if unit 51 has four nodes, namely node 70, node 80, node 90 and node 110, that is, the position of node 110 in unit 51 is determined to be the fourth node, then the content in the dictionary is: unit 51 [node 70, node 80, node 90, node 110]; if unit 52 has four nodes, namely node 71, node 81, node 110 and node 120, then the position of node 110 in unit 52 is determined to be the third node, then the content in the dictionary is: unit 52 [node 71, node 81, node 110, node 120]

[0097] S106: Obtain stress values ​​of nodes of associated units in different calculation steps.

[0098] Get the stress values ​​of nodes in the associated elements of the nodes in the area to be evaluated in different calculation steps.

[0099] S107: Establish a second dictionary according to the stress values ​​of the nodes of the associated unit in different calculation steps.

[0100] For a node of a single associated unit, the maximum value of the stress values ​​in different calculation steps is taken as the stress value of the node. For example, unit 51 in S105, unit 51 [100, 200, 300, 400], that is, the maximum stress of node 70 is 100, the maximum stress of node 80 is 200, the maximum stress of node 90 is 300, and the maximum stress of node 110 is 400. For example, unit 52 in S105, unit 52 [150, 250, 350, 450], that is, the maximum stress of node 70 is 150, the maximum stress of node 80 is 250, the maximum stress of node 90 is 350, and the maximum stress of node 110 is 450.

[0101] S108: Generate stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary.

[0102] First, according to the first dictionary and the second dictionary, multiple undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step are generated, and then the multiple undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step are smoothed to obtain the undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step. Then, the steps of generating multiple undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step according to the first dictionary and the second dictionary, and smoothing the multiple undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step to obtain the undetermined stress values ​​corresponding to all nodes in the region to be evaluated in all calculation steps are repeated. Finally, the maximum undetermined stress value corresponding to all nodes in the region to be evaluated is determined as the stress value corresponding to all nodes in the region to be evaluated. In this way, the stress values ​​of all nodes in the region to be evaluated can be obtained.

[0103] S109: Perform strength assessment on the driven wheel connection component according to stress values ​​of all nodes in the area to be assessed.

[0104] According to the stress values ​​of all nodes in the area to be evaluated, the strength of the area to be evaluated of the driven wheel connecting component is evaluated.

[0105] In an embodiment of the present application, a method for evaluating the strength of a driven wheel connecting component is provided. When executing the method, the driven wheel and the driven wheel connecting component are first meshed to obtain a plurality of nodes, and then the node numbers of all the nodes are obtained. Then, the area to be evaluated and the node numbers of the nodes in the area to be evaluated are determined from the connecting component. Then, the unit numbers of the associated units of the nodes in the area to be evaluated and the positions of the nodes in the area to be evaluated in the associated units are obtained. Then, a first dictionary is established according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated. The stress values ​​of the nodes of the associated units in different calculation steps are obtained. A second dictionary is established according to the stress values ​​of the nodes of the associated units in different calculation steps. The stress values ​​of all the nodes in the area to be evaluated are generated according to the first dictionary and the second dictionary. Finally, the strength of the driven wheel connecting component is evaluated according to the stress values ​​of all the nodes in the area to be evaluated, so as to achieve the strength evaluation of the driven wheel connecting component. In this way, the efficiency of the strength evaluation of the driven wheel connecting component can be improved.

[0106] In addition, the implementation method of the present application also includes: obtaining the node coordinates of all nodes, the node coordinate origin of which is the geometric center point of the driven wheel, the x-axis direction is the axial direction, the y-axis direction is the circumferential direction, and the z-axis direction is the radial direction. A third dictionary is established based on the node numbers of all nodes and the node coordinates of all nodes. Then, the node coordinates and node numbers of all nodes on the same tooth surface are determined according to the third dictionary, specifically in the following manner: first determine the reference tooth surface, then obtain the node coordinates of all nodes on the reference tooth surface, then rotate all nodes on the reference tooth surface according to a preset angle to obtain the node coordinates of all nodes on the reference tooth surface after rotation, wherein the preset angle is 360° / n*i, n is the total number of teeth, and i is a positive integer, and finally search the third dictionary for the node numbers corresponding to the node coordinates of all nodes on the reference tooth surface after rotation to obtain the node coordinates and node numbers of all nodes on the same tooth surface.

[0107] Then, according to the node coordinates and node numbers of all nodes on the same tooth surface, all nodes on the same tooth surface are coupled to the same reference point, such as Figure 7 As shown, Figure 7 A schematic diagram of coupling all nodes on a tooth surface to a reference point provided in an embodiment of the present application, if there are 80 tooth surfaces in total, 80 reference points are obtained by coupling. According to the node coordinates and node numbers of all nodes on the same tooth surface, after coupling all nodes on the same tooth surface to the same reference point, three-dimensional forces are applied to each reference point, and then according to the three-dimensional forces applied to each reference point, the calculation steps for each reference point are written to obtain the calculation steps corresponding to each reference point.

[0108] The above are some specific implementations of the method for evaluating the strength of the driven wheel connecting component provided by the embodiment of the present application. Based on this, the present application also provides a corresponding system. The system provided by the embodiment of the present application will be introduced from the perspective of functional modularization.

[0109] See also Figure 8 , Figure 8 A schematic diagram of a structure of a driven wheel connection component strength assessment system provided in an embodiment of the present application, the driven wheel connection component strength assessment system 800 includes:

[0110] A division module 810 is used to divide the driven wheel and the driven wheel connecting component into a grid to obtain a plurality of nodes;

[0111] A first acquisition module 820 is used to acquire node numbers of all nodes;

[0112] A first determining module 830 is used to determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components;

[0113] A second acquisition module 840 is used to acquire the unit number of the association unit of the node in the area to be evaluated, and the position of the node in the area to be evaluated in the association unit;

[0114] A first establishing module 850 is used to establish a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated;

[0115] A third acquisition module 860 is used to obtain stress values ​​of the nodes of the associated unit in different calculation steps;

[0116] A second establishing module 870 is used to establish a second dictionary according to stress values ​​of the nodes of the associated unit in different calculation steps;

[0117] A generating module 880, configured to generate stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary;

[0118] The evaluation module 890 is used to perform strength evaluation on the driven wheel connection component according to the stress values ​​of all nodes in the area to be evaluated.

[0119] Optionally, the system 800 further includes:

[0120] The fourth acquisition module is used to obtain the node coordinates of all nodes;

[0121] A third establishing module, used for establishing a third dictionary according to the node numbers of all the nodes and the node coordinates of all the nodes;

[0122] A second determination module, configured to determine the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary;

[0123] The coupling module is used to couple all the nodes on the same tooth surface to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface.

[0124] Optionally, the second determining module includes:

[0125] A first determining unit, used for determining a reference tooth surface;

[0126] An acquisition unit, used for acquiring the node coordinates of all nodes on the tooth surface of the reference tooth;

[0127] A rotation unit, for rotating all nodes on the tooth surface of the reference tooth according to a preset angle to obtain node coordinates of all nodes on the tooth surface of the reference tooth after rotation;

[0128] The search unit is used to search the third dictionary for the node numbers corresponding to the node coordinates of all nodes on the tooth surface of the reference tooth after rotation, so as to obtain the node coordinates and node numbers of all nodes on the same tooth surface.

[0129] Optionally, the system 800 further includes:

[0130] A processing module, used for applying three-axis forces to each reference point;

[0131] The writing module is used to write the calculation steps for each reference point according to the three-axis forces applied to each reference point, so as to obtain the calculation steps corresponding to each reference point.

[0132] Optionally, the generating module 880 includes:

[0133] A generating unit, configured to generate, according to the first dictionary and the second dictionary, a plurality of undetermined stress values ​​respectively corresponding to all nodes in the area to be evaluated in the same calculation step;

[0134] A smoothing unit is used to smooth a plurality of undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step;

[0135] an execution unit, configured to repeatedly execute the step of generating a plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step according to the first dictionary and the second dictionary, and the step of performing a smoothing process on the plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in all calculation steps;

[0136] The second determining unit is used to determine the maximum undetermined stress value corresponding to all the nodes in the to-be-evaluated area as the stress values ​​corresponding to all the nodes in the to-be-evaluated area.

[0137] Optionally, the system 800 further includes:

[0138] Determine the model of the driven wheel and the driven wheel connecting parts;

[0139] The driven wheel and the driven wheel connecting component are connected to each other and provided with materials.

[0140] The embodiments of the present application also provide corresponding devices and computer storage media for implementing the solutions provided by the embodiments of the present application.

[0141] like Fig. 9 As shown, the computer device 01 is in the form of a general computing device. The components of the computer device 01 may include but are not limited to: one or more processors or processing units 03, a system memory 08, and a bus 04 connecting different system components (including the system memory 08 and the processing unit 03).

[0142] Bus 04 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus and Peripheral Component Interconnect (PCI) bus.

[0143] The computer device 01 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 01, including volatile and non-volatile media, removable and non-removable media.

[0144] The system memory 08 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 09 and / or cache memory 10. The computer device 01 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 11 may be used to read and write non-removable, non-volatile magnetic media ( Fig. 9 not shown, usually called a "hard drive"). Although Fig. 9 Not shown in the figure, a disk drive for reading and writing a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 04 via one or more data medium interfaces. The memory 08 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0145] A program / utility 12 having a set (at least one) of program modules 13 may be stored, for example, in the memory 08, such program modules 13 including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may include an implementation of a network environment. The program modules 13 generally perform the functions and / or methods of the embodiments described herein.

[0146] The computer device 01 may also communicate with one or more external devices 02 (e.g., keyboard, pointing device, display 07, etc.), one or more devices that enable a user to interact with the computer device 01, and / or any device that enables the computer device 01 to communicate with one or more other computing devices (e.g., network card, modem, etc.). Such communication may be performed via input / output (I / O) interface 06. Furthermore, the computer device 01 may also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN) and / or public network, such as the Internet) via network adapter 05. Fig. 9 As shown, the network adapter 05 communicates with other modules of the computer device 01 via the bus 04. It should be understood that although Fig. 9 Not shown, other hardware and / or software modules may be used in conjunction with computer device 01, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0147] The processor unit 03 executes various functional applications and data processing by running the programs stored in the system memory 08, such as implementing the strength assessment method of the driven wheel connection component provided in the embodiment of the present application.

[0148] 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 existence of other identical elements in the process, method, article or device including the elements.

[0149] Through the description of the above implementation methods, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above-mentioned embodiment method can be implemented by means of software plus a general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment of the present application or some parts of the embodiments.

[0150] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0151] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A method for evaluating the strength of a driven wheel connecting component, characterized in that: include: Meshing the driven wheel and the driven wheel connecting parts to obtain a plurality of nodes; Get the node numbers of all nodes; Determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components; Obtaining a unit number of an associated unit of a node in the area to be evaluated, and a position of the node in the area to be evaluated in the associated unit; Establishing a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated; Obtaining stress values ​​of the nodes of the associated unit in different calculation steps; Establishing a second dictionary according to stress values ​​of the nodes of the associated unit in different calculation steps; Generate stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary; The strength of the driven wheel connecting component is evaluated according to the stress values ​​of all nodes in the area to be evaluated.

2. The method according to claim 1, characterized in that Before determining the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components, the method further includes: Get the node coordinates of all nodes; Establishing a third dictionary according to the node numbers of all the nodes and the node coordinates of all the nodes; Determine the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary; All the nodes on the same tooth surface are coupled to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface.

3. The method according to claim 2, characterized in that Determining the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary includes: Determine the reference tooth surface; Acquire the node coordinates of all nodes on the tooth surface of the reference tooth; Rotate all nodes on the tooth surface of the reference tooth according to a preset angle to obtain the node coordinates of all nodes on the tooth surface of the reference tooth after rotation; The node numbers corresponding to the node coordinates of all nodes on the tooth surface of the reference tooth after rotation are searched in the third dictionary to obtain the node coordinates and node numbers of all nodes on the same tooth surface.

4. The method according to claim 2, characterized in that: After coupling all the nodes on the same tooth surface to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface, the method further includes: Apply three-axis forces to each reference point; According to the three-axis forces applied to each reference point, a calculation step is written for each reference point to obtain the calculation step corresponding to each reference point.

5. The method according to claim 1, characterized in that: The step of generating stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary includes: Generate a plurality of undetermined stress values ​​corresponding to all nodes in the area to be evaluated in the same calculation step according to the first dictionary and the second dictionary; Smoothing out multiple undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the to-be-evaluated region in the same calculation step; Repeating the steps of generating a plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step according to the first dictionary and the second dictionary, and performing a smoothing process on the plurality of undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in the same calculation step, so as to obtain undetermined stress values ​​corresponding to all nodes in the region to be evaluated in all calculation steps; The maximum undetermined stress value corresponding to all the nodes in the area to be evaluated is determined as the stress value corresponding to all the nodes in the area to be evaluated.

6. The method according to claim 1, characterized in that Before meshing the driven wheel and the connecting parts to obtain a plurality of nodes, the method further includes: Determine the model of the driven wheel and the driven wheel connecting parts; The driven wheel and the driven wheel connecting component are connected to each other and provided with materials.

7. A driven wheel connection component strength assessment system, characterized in that: include: A partitioning module, used for performing mesh partitioning on the driven wheel and the driven wheel connecting parts to obtain a plurality of nodes; A first acquisition module is used to acquire node numbers of all nodes; A first determining module, used to determine the area to be evaluated and the node numbers of the nodes in the area to be evaluated from the connection components; A second acquisition module is used to acquire the unit number of the association unit of the node in the area to be evaluated, and the position of the node in the area to be evaluated in the association unit; A first establishing module, used for establishing a first dictionary according to the area to be evaluated and the node numbers of the nodes in the area to be evaluated; A third acquisition module is used to obtain stress values ​​of the nodes of the associated unit in different calculation steps; A second establishing module, used to establish a second dictionary according to stress values ​​of the nodes of the associated unit in different calculation steps; A generating module, used for generating stress values ​​of all nodes in the area to be evaluated according to the first dictionary and the second dictionary; The evaluation module is used to perform strength evaluation on the driven wheel connection component according to the stress values ​​of all nodes in the area to be evaluated.

8. The system according to claim 7, characterized in that Also includes: The fourth acquisition module is used to obtain the node coordinates of all nodes; A third establishing module, used for establishing a third dictionary according to the node numbers of all the nodes and the node coordinates of all the nodes; A second determination module, configured to determine the node coordinates and node numbers of all nodes on the same tooth surface according to the third dictionary; The coupling module is used to couple all the nodes on the same tooth surface to the same reference point according to the node coordinates and node numbers of all the nodes on the same tooth surface.

9. A computer device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method for evaluating the strength of a driven wheel connection component as described in any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the method for evaluating the strength of a driven wheel connection component according to any one of claims 1 to 6.

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