Aviation tire three-dimensional curved surface grid generation method, device and equipment and medium

Abstract

The invention discloses an aircraft tire three-dimensional curved surface grid generation method and device, equipment and a medium, and relates to the field of computer graphics, and the method comprises the steps: obtaining an aircraft tire data set, sorting the information of target lines in the aircraft tire data set, and connecting the target lines according to a sorting result; determining a connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretizing the target lines by using a discretization algorithm to obtain discretized target points, sorting the target points to determine a target two-dimensional point column, and constructing an initial two-dimensional drawing grid according to the target two-dimensional point column; determining a target rotation interval angle and a reference rotation axis based on design requirements, and rotating the target two-dimensional point column according to the connection relation, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional dot matrix; and generating a three-dimensional curved surface grid according to the three-dimensional dot matrix and the initial two-dimensional drawing grid. According to the method, the aircraft tire three-dimensional grid model can be automatically constructed.

Description

Technical Field

[0001] The present invention relates to the field of computer graphics, and in particular to a method, device, equipment and medium for generating a three-dimensional curved surface grid of an aircraft tire. Background Art

[0002] In the field of computer graphics and engineering design, meshes are used to describe the model or area of ​​a computational problem in numerical simulation technology. Mesh generation is a necessary pre-processing step for numerical solution methods such as finite element methods. The quality of mesh units directly determines the correctness, accuracy and performance of simulation calculations. Especially in the design and manufacturing process of complex structures such as aircraft tires, three-dimensional modeling and meshing technology play a vital role. Traditional aircraft tire design relies on manually drawn two-dimensional drawings and manual modeling by experienced engineers. This method is not only time-consuming and labor-intensive, but also prone to human errors, and it is difficult to meet the dual requirements of modern industrial production for efficiency and accuracy. During the manual modeling process, engineers need to repeatedly proofread and adjust the model to ensure that it meets the design requirements, which not only increases the design cycle, but may also lead to a decrease in the consistency and reliability of the model.

[0003] With the development of computer-aided design (CAD) technology, for products with complex geometric shapes such as aircraft tires, it is possible to automatically build accurate and efficient three-dimensional mesh models from their two-dimensional drawings, which will greatly improve the speed and quality of product development. Automated methods can extract key features from two-dimensional drawings through image processing technology and combine computer graphics algorithms to generate high-quality three-dimensional meshes. In this way, it not only reduces manual intervention and improves design efficiency, but also ensures high accuracy and consistency of the model.

[0004] In summary, how to automatically construct an accurate and efficient three-dimensional mesh model is a problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a method, device, equipment and medium for generating a three-dimensional curved surface mesh of an aircraft tire, which can automatically construct an accurate and efficient three-dimensional mesh model. The specific scheme is as follows:

[0006] In a first aspect, the present application provides a method for generating a three-dimensional surface mesh of an aircraft tire, comprising:

[0007] Acquire an aircraft tire data set, sort information of target lines in the aircraft tire data set, and connect the target lines according to the sorting result;

[0008] Determine the connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretize the target lines using a discretization algorithm to obtain discretized target points, sort the target points to determine a target two-dimensional point sequence, and construct an initial two-dimensional drawing grid according to the target two-dimensional point sequence;

[0009] Determine a target rotation interval angle and a reference rotation axis based on design requirements, and rotate the target two-dimensional point array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional point array;

[0010] A three-dimensional surface mesh is generated according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

[0011] Optionally, the aircraft tire data set includes contour line layers, types, and start and end coordinates, length, angle, center point, and radius of each contour line of each component of the aircraft tire.

[0012] Optionally, obtaining an aviation tire dataset includes:

[0013] Line information of a target layer is obtained from an aircraft tire drawing, and the obtained line information of the target layer is integrated to obtain a corresponding aircraft tire data set.

[0014] Optionally, determining the connection relationship between the target lines based on the start and end coordinates of the connected target lines includes:

[0015] The connection relationship between the target lines is determined based on the start and end coordinates of the target lines, and closed contours and open contours are screened out from the target lines based on the connection relationship.

[0016] Optionally, after the target line is discretized by using a discretization algorithm to obtain a discretized target point, the method further includes:

[0017] The positions of the closed contour and the open contour in the aircraft tire data set are determined so as to rotate the target two-dimensional point array according to the positions of the closed contour and the open contour, the target rotation interval angle and the reference rotation axis to obtain the corresponding three-dimensional point array.

[0018] Optionally, determining the target rotation interval angle and the reference rotation axis based on design requirements includes:

[0019] The reference rotation axis, grid density and rotation angle are determined based on the design requirements, and the target rotation interval angle is determined using an optimization algorithm according to the grid density and the rotation angle.

[0020] Optionally, generating a three-dimensional surface mesh according to the three-dimensional dot matrix and the initial two-dimensional drawing mesh includes:

[0021] The rotated two-dimensional drawing grid is determined based on the three-dimensional dot matrix, and the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid are connected using a grid generation algorithm to generate a three-dimensional surface grid.

[0022] In a second aspect, the present application provides a device for generating a three-dimensional curved surface mesh of an aircraft tire, comprising:

[0023] A target line connection module is used to obtain an aircraft tire data set, sort the information of target lines in the aircraft tire data set, and connect the target lines according to the sorting result;

[0024] An initial two-dimensional drawing grid construction module is used to determine the connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretize the target lines using a discretization algorithm to obtain discretized target points, sort the target points to determine a target two-dimensional point sequence, and construct an initial two-dimensional drawing grid according to the target two-dimensional point sequence;

[0025] A three-dimensional dot matrix acquisition module, used to determine a target rotation interval angle and a reference rotation axis based on design requirements, and to rotate the target two-dimensional dot array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional dot matrix;

[0026] The three-dimensional surface mesh generation module is used to generate a three-dimensional surface mesh according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

[0027] In a third aspect, the present application provides an electronic device, including:

[0028] Memory, used to store computer programs;

[0029] The processor is used to execute the computer program to implement the above-mentioned method for generating a three-dimensional curved surface mesh of an aircraft tire.

[0030] In a fourth aspect, the present application provides a computer-readable medium for storing a computer program; wherein, when the computer program is executed by a processor, the aforementioned method for generating a three-dimensional surface mesh of an aircraft tire is implemented.

[0031] In summary, the present application first obtains an aircraft tire data set, sorts the information of target lines in the aircraft tire data set, and connects the target lines according to the sorting result; determines the connection relationship between the target lines based on the start and end coordinates of the connected target lines, and discretizes the target lines using a discretization algorithm to obtain discretized target points, sorts the target points to determine a target two-dimensional point sequence, and constructs an initial two-dimensional drawing grid according to the target two-dimensional point sequence; determines a target rotation interval angle and a reference rotation axis based on design requirements, rotates the target two-dimensional point sequence according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional point matrix; and generates a three-dimensional surface mesh according to the three-dimensional point matrix and the initial two-dimensional drawing grid. It can be seen that after acquiring the aircraft tire data set, the application extracts the information of the target lines, then sorts the target lines according to specific rules and connects the target lines according to the sorting results, determines the connection relationship based on the start and end coordinates of the connected target lines, and then discretizes the connected target lines using a discretization algorithm to obtain target points, sorts the target points to form a two-dimensional point column, and constructs an initial two-dimensional drawing grid based on this, determines the target rotation interval angle and the reference rotation axis based on the design requirements, and then rotates the target two-dimensional point column according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a three-dimensional dot matrix, and finally generates a three-dimensional surface grid based on the three-dimensional dot matrix and the initial two-dimensional drawing grid. In this way, data information can be automatically extracted from the aircraft tire drawings, and an accurate three-dimensional surface grid can be generated, which greatly improves the efficiency of aircraft tire design and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A flow chart of a method for generating a three-dimensional curved surface mesh of an aircraft tire provided by the present invention;

[0034] Figure 2 A line diagram of all layers of an aircraft tire disclosed in the present invention;

[0035] Figure 3 A schematic diagram of the outer contour layer of an aircraft tire disclosed in the present invention;

[0036] Figure 4 It is a front schematic diagram of a three-dimensional curved surface grid of an aircraft tire disclosed in the present invention;

[0037] Figure 5 A schematic side view of a three-dimensional curved mesh of an aircraft tire disclosed in the present invention;

[0038] Figure 6 A flowchart of a specific method for generating a three-dimensional curved surface mesh of an aircraft tire disclosed in the present invention;

[0039] Figure 7 It is a schematic structural diagram of a device for generating a three-dimensional curved surface grid of an aircraft tire disclosed in the present invention;

[0040] Figure 8 The present invention is a structural diagram of an electronic device disclosed in the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] At present, traditional aircraft tire design relies on manually drawn two-dimensional drawings and manual modeling by experienced engineers. This method is not only time-consuming and labor-intensive, but also prone to human errors, making it difficult to meet the dual requirements of modern industrial production for efficiency and accuracy. During the manual modeling process, engineers need to repeatedly proofread and adjust the model to ensure that it meets the design requirements, which not only increases the design cycle, but may also lead to a decrease in the consistency and reliability of the model. In order to solve the above technical problems, the present application discloses a method, device, equipment and medium for generating a three-dimensional surface mesh of an aircraft tire, which can automatically construct an accurate and efficient three-dimensional mesh model.

[0043] See also Figure 1 As shown, the embodiment of the present invention discloses a method for generating a three-dimensional curved surface mesh of an aircraft tire, comprising:

[0044] Step S11, acquiring an aircraft tire data set, sorting information of target lines in the aircraft tire data set, and connecting the target lines according to the sorting result.

[0045] In this embodiment, it is necessary to first obtain an aircraft tire data set, and line information of a target layer may be obtained from an aircraft tire drawing, and the obtained line information of the target layer may be integrated to obtain a corresponding aircraft tire data set.

[0046] In a specific implementation, first open the CAD drawing file containing the aircraft tire design, and extract line information from the CAD software aircraft tire drawing. Figure 2As shown in the figure, these line information are all the line information of the aircraft tire in the drawing, including key parameters such as each line layer, type, start and end coordinates, length, arc angle, center and radius. Then, the line information of the outer contour layer is selected from the extracted line information, and the extracted line information of the outer contour layer is processed to form an aircraft tire outer contour data set, including the type, start and end coordinates, length, arc angle, center and radius of each line of each aircraft tire outer contour.

[0047] In another specific implementation, first open the CAD drawing file containing the aircraft tire design, and extract line information from the CAD software aircraft tire drawing. These line information are all the line information of the aircraft tire in the drawing, including key parameters such as the layer, type, start and end coordinates, length, arc angle, center and radius of each line segment. Then, the line information of the apex layer and the wire ring layer is selected from the extracted line information, and the line information of the apex layer and the wire ring layer is processed to form an aircraft tire apex wire ring data set, including the type, start and end coordinates, length, arc angle, center and radius of each line segment of each aircraft tire apex and wire ring.

[0048] In this embodiment, after the corresponding aircraft tire data set is obtained, the data in the aircraft tire data set is cleaned, for example, invalid or erroneous data, data whose data format does not meet the requirements or is obviously contrary to the actual situation are removed to ensure the accuracy and integrity of the data. Then, in order to facilitate subsequent processing and utilization, all line information of the target lines in the aircraft tire data set is sorted, and the target lines are connected in sequence according to the sorting result.

[0049] Step S12, determining the connection relationship between the target lines based on the start and end coordinates of the connected target lines, and using a discretization algorithm to discretize the target lines to obtain discretized target points, sorting the target points to determine a target two-dimensional point sequence, and constructing an initial two-dimensional drawing grid based on the target two-dimensional point sequence.

[0050] In this embodiment, after connecting the target lines, the connection relationship between the target lines is determined based on the start and end coordinates of the target lines, and closed contours and open contours are screened out from the target lines based on the connection relationship. Specifically, by judging the start and end coordinates of the lines, the connection relationship between the lines is determined. If the aircraft tire data set is determined to be an aircraft tire outer contour data set, a closed contour as shown in 3 is screened out from the target lines based on the connection relationship; if the aircraft tire data set is determined to be an aircraft tire apex wire ring data set, multiple closed contours are screened out from the target lines based on the connection relationship.

[0051] Furthermore, a discretization algorithm is used to operate on each target line segment, and each target line segment is discretized into a series of points. For example, all aircraft tire outer contour lines or aircraft tire apex wire ring lines are discretized by a discretization algorithm to obtain discretized target points, and the discretized target points are arranged in sequence to form a corresponding target two-dimensional point column. Then, two adjacent points in the target two-dimensional point column are combined to form a line segment unit, which are reasonably spliced ​​and arranged to construct an initial two-dimensional drawing grid according to the formed line segment units.

[0052] Step S13, determining a target rotation interval angle and a reference rotation axis based on design requirements, and rotating the target two-dimensional point array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional point array.

[0053] In this embodiment, according to the design requirements of the aircraft tire, the reference rotation axis, grid density and rotation angle are determined, and the target rotation interval angle is determined by using an optimization algorithm according to the grid density and rotation angle. Specifically, the central axis of the aircraft tire can be used as the reference rotation axis, and then the grid density is determined by comprehensively considering factors such as the specific design objectives, computing resources and requirements for result accuracy of the aircraft tire. Then, the rotation angle can be determined according to the functional test angle requirements, appearance display angle requirements, etc., and the target rotation interval angle is calculated by using an optimization algorithm according to the rotation angle and grid density.

[0054] In this embodiment, the positions of the closed contour and the open contour in the aircraft tire data set are determined, so as to rotate the target two-dimensional point array according to the positions of the closed contour and the open contour, the target rotation interval angle, and the reference rotation axis to obtain the corresponding three-dimensional point array. Specifically, firstly, the specific positions of the closed contour and the open contour in the aircraft tire data set are clarified, and then the target two-dimensional point array is rotated in combination with the determined target rotation interval angle and the reference rotation axis. By rotating the target two-dimensional point array around the determined reference rotation axis according to the target rotation interval angle, after such a rotation operation, the point array originally in a two-dimensional state will undergo spatial changes and then be transformed into a corresponding three-dimensional point array. This three-dimensional point array can more three-dimensionally and comprehensively display the spatial morphology and other characteristics of the relevant contours of the aircraft tire, and has an important basic supporting role for the subsequent further in-depth research on the spatial structure, performance analysis, and related design optimization of the aircraft tire.

[0055] Step S14: generating a three-dimensional surface mesh according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

[0056] In this embodiment, after obtaining the corresponding three-dimensional dot matrix, the rotated two-dimensional drawing grid is determined based on the three-dimensional dot matrix, and the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid are connected by a grid generation algorithm to generate a three-dimensional curved surface grid. Specifically, after obtaining the three-dimensional dot matrix, a new three-dimensional coordinate is generated, and then the rotated two-dimensional drawing grid is determined based on the new three-dimensional coordinate. After that, the corresponding connection points and reasonable connection paths between the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid are found by the grid generation algorithm, and the two are organically connected together to generate the corresponding three-dimensional curved surface grid. Through such a connection operation, the originally scattered two-dimensional grid structures in different states are integrated to jointly construct a complete structure that can reflect the three-dimensional spatial form of the aircraft tire. In addition, after generating the three-dimensional curved surface grid, it is also necessary to optimize the generated three-dimensional curved surface grid, for example, by adjusting the distribution of the grid nodes, optimizing the shape of the grid units, etc., to eliminate the existing unreasonable aspects, so that the three-dimensional curved surface grid can more accurately reflect the real form and characteristics of the aircraft tire, ensure that it can provide reliable data support in subsequent use, and achieve the following results. Figure 4 , Figure 5 The outer contour of the aircraft tire is shown.

[0057] It can be seen that after acquiring the aircraft tire data set, the application extracts the information of the target lines, then sorts the target lines according to specific rules and connects the target lines according to the sorting results, determines the connection relationship based on the start and end coordinates of the connected target lines, and then discretizes the connected target lines using a discretization algorithm to obtain target points, sorts the target points to form a two-dimensional point column, and constructs an initial two-dimensional drawing grid based on this, determines the target rotation interval angle and the reference rotation axis based on the design requirements, and then rotates the target two-dimensional point column according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a three-dimensional dot matrix, and finally generates a three-dimensional surface grid based on the three-dimensional dot matrix and the initial two-dimensional drawing grid. In this way, data information can be automatically extracted from the aircraft tire drawings, and an accurate three-dimensional surface grid can be generated, which greatly improves the efficiency of aircraft tire design and analysis.

[0058] Based on the above embodiment, the present application discloses a method for generating a three-dimensional curved surface mesh of an aircraft tire, which can automatically construct an accurate and efficient three-dimensional mesh model. Figure 6 The specific aircraft tire three-dimensional surface mesh generation method shown is described in detail.

[0059] This application first needs to obtain the corresponding CAD drawing file, and extract line information from the CAD software aircraft tire drawing, process the information of the extracted target line, form the corresponding aircraft tire data set, then clean the data in the aircraft tire data set, and then sort all the line information of the target line in the aircraft tire data set, and connect the target lines in order according to the sorting result. After connecting the target lines, determine the connection relationship between the target lines based on the start and end coordinates of the target lines, and select closed contours and open contours from the target lines according to the connection relationship. After that, use the discretization algorithm to operate each segment of the target line, discretize each segment of the target line into a series of points, obtain the discretized target points, arrange the discretized target points in order, form the corresponding target two-dimensional point column, combine two adjacent points in the target two-dimensional point column to form a line segment unit, and then construct the initial two-dimensional drawing grid according to the formed line segment unit. According to the design requirements of the aircraft tire, determine the reference rotation axis, grid density and rotation angle, and then calculate the target rotation interval angle by the determined grid density and rotation angle. Subsequently, the specific positions of the closed contours and open contours in the aircraft tire data set are determined, and then the target two-dimensional point array is rotated in combination with the determined target rotation interval angle and the reference rotation axis. The target two-dimensional point array is rotated around the determined reference rotation axis according to the target rotation interval angle, and then converted into a corresponding three-dimensional dot matrix. After obtaining the corresponding three-dimensional dot matrix, a new three-dimensional coordinate is generated, and then the rotated two-dimensional drawing grid is determined based on the new three-dimensional coordinate. The corresponding connection points and reasonable connection paths between the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid are found through the grid generation algorithm, and the two are organically connected together to generate the corresponding three-dimensional surface grid. In this way, the aircraft tire data is effectively and gradually converted into a three-dimensional surface grid model that can be used for in-depth analysis, simulation, design optimization, etc. of aircraft tires, which improves the scientificity and accuracy of aircraft tire design and research.

[0060] See also Figure 7 As shown, the embodiment of the present invention discloses a device for generating a three-dimensional curved surface mesh of an aircraft tire, comprising:

[0061] The target line connection module 11 is used to obtain an aircraft tire data set, sort the information of the target lines in the aircraft tire data set, and connect the target lines according to the sorting result;

[0062] The initial two-dimensional drawing grid construction module 12 is used to determine the connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretize the target lines using a discretization algorithm to obtain discretized target points, sort the target points to determine a target two-dimensional point sequence, and construct an initial two-dimensional drawing grid according to the target two-dimensional point sequence;

[0063] A three-dimensional dot matrix acquisition module 13 is used to determine a target rotation interval angle and a reference rotation axis based on design requirements, and to rotate the target two-dimensional dot array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional dot matrix;

[0064] The three-dimensional surface mesh generation module 14 is used to generate a three-dimensional surface mesh according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

[0065] It can be seen that after acquiring the aircraft tire data set, the application extracts the information of the target lines, then sorts the target lines according to specific rules and connects the target lines according to the sorting results, determines the connection relationship based on the start and end coordinates of the connected target lines, and then discretizes the connected target lines using a discretization algorithm to obtain target points, sorts the target points to form a two-dimensional point column, and constructs an initial two-dimensional drawing grid based on this, determines the target rotation interval angle and the reference rotation axis based on the design requirements, and then rotates the target two-dimensional point column according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a three-dimensional dot matrix, and finally generates a three-dimensional surface grid based on the three-dimensional dot matrix and the initial two-dimensional drawing grid. In this way, data information can be automatically extracted from the aircraft tire drawings, and an accurate three-dimensional surface grid can be generated, which greatly improves the efficiency of aircraft tire design and analysis.

[0066] In some specific implementations, the target line connection module 11 may specifically include:

[0067] The aircraft tire data set acquisition unit is used to acquire line information of a target layer from an aircraft tire drawing, and integrate the acquired line information of the target layer to obtain a corresponding aircraft tire data set.

[0068] In some specific implementations, the initial two-dimensional drawing grid construction module 12 may specifically include:

[0069] The contour screening unit is used to determine the connection relationship between the target lines based on the start and end coordinates of the target lines, and screen closed contours and open contours from the target lines based on the connection relationship.

[0070] In some specific implementations, the aircraft tire three-dimensional curved surface mesh generation device may further include:

[0071] The three-dimensional dot matrix determining unit is used to determine the positions of the closed contour and the open contour in the aircraft tire data set, so as to rotate the target two-dimensional point array according to the positions of the closed contour and the open contour, the target rotation interval angle and the reference rotation axis to obtain the corresponding three-dimensional dot matrix.

[0072] In some specific implementations, the three-dimensional point array acquisition module 13 may specifically include:

[0073] The target rotation interval angle determination unit is used to determine the reference rotation axis, grid density and rotation angle based on the design requirements, and determine the target rotation interval angle using an optimization algorithm according to the grid density and the rotation angle.

[0074] In some specific implementations, the three-dimensional surface mesh generation module 14 may specifically include:

[0075] The two-dimensional drawing grid connection unit is used to determine the rotated two-dimensional drawing grid based on the three-dimensional dot matrix, and connect the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid using a grid generation algorithm to generate a three-dimensional surface grid.

[0076] Furthermore, the present application also discloses an electronic device. Figure 8 This is a structural diagram of an electronic device 20 according to an exemplary embodiment. The content in the diagram cannot be regarded as any limitation on the scope of use of the present application.

[0077] Figure 8 The present invention provides a schematic diagram of the structure of an electronic device 20 provided in an embodiment of the present application. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input / output interface 25, and a communication bus 26. The memory 22 is used to store a computer program, which is loaded and executed by the processor 21 to implement the relevant steps in the method for generating a three-dimensional curved surface mesh of an aircraft tire disclosed in any of the aforementioned embodiments. In addition, the electronic device 20 in this embodiment may specifically be an electronic computer.

[0078] In this embodiment, the power supply 23 is used to provide working voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and the external device, and the communication protocol it follows is any communication protocol that can be applied to the technical solution of the present application, and is not specifically limited here; the input and output interface 25 is used to obtain external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs and is not specifically limited here.

[0079] In addition, the memory 22, as a carrier for storing resources, can be a read-only memory, a random access memory, a disk or an optical disk, etc. The resources stored thereon can include an operating system 221, a computer program 222, etc., and the storage method can be temporary storage or permanent storage.

[0080] The operating system 221 is used to manage and control the hardware devices and computer program 222 on the electronic device 20, and may be Windows Server, Netware, Unix, Linux, etc. In addition to the computer program that can be used to complete the method for generating a three-dimensional curved surface mesh of an aircraft tire executed by the electronic device 20 disclosed in any of the aforementioned embodiments, the computer program 222 may further include a computer program that can be used to complete other specific tasks.

[0081] Furthermore, the present application also discloses a computer-readable medium for storing a computer program; wherein, when the computer program is executed by a processor, the above-disclosed method for generating a three-dimensional curved surface mesh of an aircraft tire is implemented. The specific steps of the method can be referred to the corresponding contents disclosed in the above-disclosed embodiments, and will not be repeated here.

[0082] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0083] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0084] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of medium known in the art.

[0085] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0086] The technical solution provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for generating a three-dimensional curved surface mesh of an aircraft tire, characterized in that: include: Acquire an aircraft tire data set, sort information of target lines in the aircraft tire data set, and connect the target lines according to the sorting result; Determine the connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretize the target lines using a discretization algorithm to obtain discretized target points, sort the target points to determine a target two-dimensional point sequence, and construct an initial two-dimensional drawing grid according to the target two-dimensional point sequence; Determine a target rotation interval angle and a reference rotation axis based on design requirements, and rotate the target two-dimensional point array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional point array; A three-dimensional surface mesh is generated according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

2. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to claim 1, characterized in that: The aircraft tire data set includes the contour line layer, type, and the start and end coordinates, length, angle, center point, and radius of each contour line of each component of the aircraft tire.

3. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to claim 1, characterized in that: The step of obtaining an aviation tire dataset includes: Line information of a target layer is obtained from an aircraft tire drawing, and the obtained line information of the target layer is integrated to obtain a corresponding aircraft tire data set.

4. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to claim 1, characterized in that: The determining the connection relationship between the target lines based on the start and end coordinates of the connected target lines includes: The connection relationship between the target lines is determined based on the start and end coordinates of the target lines, and closed contours and open contours are screened out from the target lines based on the connection relationship.

5. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to claim 4, characterized in that: After the target line is discretized by using a discretization algorithm to obtain a discretized target point, the method further includes: The positions of the closed contour and the open contour in the aircraft tire data set are determined so as to rotate the target two-dimensional point array according to the positions of the closed contour and the open contour, the target rotation interval angle and the reference rotation axis to obtain the corresponding three-dimensional point array.

6. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to claim 1, characterized in that: The step of determining the target rotation interval angle and the reference rotation axis based on the design requirements includes: The reference rotation axis, grid density and rotation angle are determined based on the design requirements, and the target rotation interval angle is determined using an optimization algorithm according to the grid density and the rotation angle.

7. The method for generating a three-dimensional curved surface mesh of an aircraft tire according to any one of claims 1 to 6, characterized in that: The step of generating a three-dimensional surface mesh according to the three-dimensional dot matrix and the initial two-dimensional drawing mesh comprises: The rotated two-dimensional drawing grid is determined based on the three-dimensional dot matrix, and the rotated two-dimensional drawing grid and the initial two-dimensional drawing grid are connected using a grid generation algorithm to generate a three-dimensional surface grid.

8. A device for generating a three-dimensional curved surface grid of an aircraft tire, characterized in that: include: A target line connection module is used to obtain an aircraft tire data set, sort the information of target lines in the aircraft tire data set, and connect the target lines according to the sorting result; An initial two-dimensional drawing grid construction module is used to determine the connection relationship between the target lines based on the start and end coordinates of the connected target lines, discretize the target lines using a discretization algorithm to obtain discretized target points, sort the target points to determine a target two-dimensional point sequence, and construct an initial two-dimensional drawing grid according to the target two-dimensional point sequence; A three-dimensional dot matrix acquisition module, used to determine a target rotation interval angle and a reference rotation axis based on design requirements, and to rotate the target two-dimensional dot array according to the connection relationship, the target rotation interval angle and the reference rotation axis to obtain a corresponding three-dimensional dot matrix; The three-dimensional surface mesh generation module is used to generate a three-dimensional surface mesh according to the three-dimensional point matrix and the initial two-dimensional drawing mesh.

9. An electronic device, characterized in that: include: Memory, used to store computer programs; A processor is used to execute the computer program to implement the method for generating a three-dimensional curved surface mesh of an aircraft tire according to any one of claims 1 to 7.

10. A computer-readable medium, characterized in that Used to store a computer program; wherein, when the computer program is executed by a processor, the method for generating a three-dimensional curved surface mesh of an aircraft tire according to any one of claims 1 to 7 is implemented.

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