Method, device and product for determining a biomimetic wear-resistant airfoil

Abstract

This application discloses a method, device, and product for determining a biomimetic wear-resistant airfoil, relating to the field of biomimetic airfoil technology. The method includes acquiring an image of a lizard's typical body posture when resisting wind and sand impact; determining the contour boundary of the typical body posture based on the image; discretizing the contour boundary of the typical body posture to obtain contour line feature points; dividing the contour boundary using the contour line feature points and the curvature characteristics of the contour boundary; performing nonlinear smooth curve fitting on the contour line feature points of the divided result using a polynomial; determining the suction surface contour and pressure surface contour of the biomimetic wear-resistant airfoil based on the fitting result; determining the biomimetic wear-resistant airfoil profile based on the suction surface contour and pressure surface contour; and performing lofting processing using 3D design software based on the biomimetic wear-resistant airfoil profile to generate the biomimetic wear-resistant airfoil. This application can change the impact mode of sand particles, thereby improving the erosion and wear resistance of the airfoil surface.

Description

Technical Field

[0001] This application relates to the field of biomimetic airfoil technology, and in particular to a method, equipment and product for determining a biomimetic wear-resistant airfoil. Background Technology

[0002] In the fields of rotating machinery and aviation, airfoils are a fundamental element of fluid machinery equipment, and their design directly affects the performance of the equipment. Erosion wear is a phenomenon that causes material loss on the surface of fluid machinery equipment. When equipment operates in sandy conditions, the surfaces of its flow-through components inevitably suffer severe erosion wear damage, leading to deformation and failure of parts, resulting in economic losses and even safety accidents. Conventional anti-wear methods include using wear-resistant materials, optimizing component geometry, and limiting equipment operating conditions. However, these measures often have drawbacks such as high costs or hindering efficient equipment operation. In recent years, with the development of bionics, many researchers have discovered that the surfaces of desert organisms are almost undamaged, indicating their specific adaptation to wind and sand erosion, which provides a new direction for anti-wear research.

[0003] Current research on biological resistance to wind and sand erosion primarily focuses on biological specimens, emphasizing the morphology and structure of organisms. However, research on the behavior of living organisms in resisting wind and sand remains lacking. The instinct to seek advantage and avoid harm is inherent in living organisms. Through long-term "natural selection," desert organisms, in addition to evolving unique morphological characteristics, also exhibit specific behavioral patterns in windy and sandy environments, enabling them to resist wind and sand attacks. This behavioral response is likely the optimal way for organisms to resist wind and sand erosion.

[0004] Therefore, when conducting biomimetic wear-resistant design, it is necessary to consider the behavioral responses of desert organisms in order to address the problems existing in this field. Summary of the Invention

[0005] The purpose of this application is to provide a method, device, and product for determining a biomimetic wear-resistant airfoil, which can change the impact mode of sand particles to improve the erosion and wear resistance of the airfoil surface.

[0006] To achieve the above objectives, this application provides the following solution:

[0007] Firstly, this application provides a method for determining a biomimetic wear-resistant airfoil, the method comprising:

[0008] Acquire images of the typical body posture of a lizard when resisting the impact of sandstorms; the typical body posture is the posture that the lizard adjusts when sand particles hit its own body surface;

[0009] Determine the outline boundary of the typical body posture based on the image of the typical body posture;

[0010] Discretize the contour boundaries of typical body shapes to obtain contour feature points;

[0011] The contour boundary is divided using the feature points of the contour line and the curvature features of the contour boundary;

[0012] Polynomials were used to fit nonlinear smooth curves to the feature points of the segmented contour lines.

[0013] The suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil are determined based on the fitting results.

[0014] The biomimetic wear-resistant airfoil profile is determined based on the suction surface profile and the pressure surface profile.

[0015] Based on the biomimetic wear-resistant airfoil profile, a stretching process was performed using 3D design software to generate the biomimetic wear-resistant airfoil.

[0016] Optionally, acquiring images of a lizard's typical posture when resisting wind and sandstorms specifically includes:

[0017] A sandstorm experimental platform was constructed; the sandstorm experimental platform was used to acquire images of the lizard's behavioral response in sandstorms.

[0018] Optionally, determining the contour boundary of the typical body posture based on the image of the typical body posture specifically includes:

[0019] In images of typical body postures, an xy coordinate system is established with the starting point of the lower side of the lizard's tail as the origin. Feature points of the contour lines of the lizard's head, back, abdomen, and tail in the direction of the incoming flow are extracted when the lizard is in a typical body posture.

[0020] Based on the feature points of the contour line, a nonlinear smooth curve is used to fit the feature points to obtain the contour boundary of a typical body shape.

[0021] Optionally, the governing equations corresponding to the fitting results specifically include:

[0022] y1 = 0, 0 ≤ x ≤ 228.1

[0023] y2=7.69094583141533e -03 x 2 -3.52828148366162x+4.04638022616098e +02 228.1≤x≤253.3

[0024] y3 = 1.85071216823784e -05 x 5 -2.42784255067005e -02 x 4 +1.27369397544407e+01 x 3 -3.3402813229505e +03 x 2 +4.37900317097303e +05 x-2.295794028859e +07 253.3≤x≤275.0

[0025]

[0026] y5=5.07846643505935e -10 x 6 -6.39291285802748e -07 x 5 +3.33906057351526e -04 x 4 -9.25752886825032e -02 x 3 +1.43613412541344e +01 x 2 -1.18119999888849e +03 x+4.02245116205783e +04 163.3 ≤ x ≤ 252.3

[0027] y6 = 6e -12 x 6 -3e -09 x 5 +4e -07 x 4 -3e -05 x 3 +0.001x 2 +0.038x+0.035, 0≤x≤163.3

[0028] Where y1, y2, y3, y4, y5 and y6 are the control equations corresponding to the fitting results, and x is the coordinate point.

[0029] Optionally, the maximum relative camber of the biomimetic wear-resistant airfoil Location of maximum curvature Maximum relative thickness

[0030] Secondly, this application provides a device for determining a biomimetic wear-resistant airfoil, the device comprising:

[0031] The typical body posture image acquisition module is used to acquire images of the typical body posture of a lizard when resisting the impact of sandstorms; the typical body posture is the body posture that the lizard adjusts when sand particles hit its own body surface;

[0032] The contour boundary determination module is used to determine the contour boundary of a typical body shape based on an image of a typical body shape.

[0033] The contour feature point determination module is used to discretize the contour boundaries of typical body shapes to obtain contour feature points;

[0034] The contour boundary division module is used to divide the contour boundary using contour line feature points and contour boundary curvature features;

[0035] The curve fitting module is used to perform nonlinear smooth curve fitting on the feature points of the contour lines of the segmentation results using polynomials.

[0036] The suction surface profile and pressure surface profile determination module is used to determine the suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil based on the fitting results.

[0037] The airfoil profile determination module is used to determine the biomimetic wear-resistant airfoil profile based on the suction surface profile and the pressure surface profile.

[0038] The airfoil generation module is used to generate a biomimetic wear-resistant airfoil by using 3D design software to perform lofting processing based on the biomimetic wear-resistant airfoil profile.

[0039] Thirdly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for determining the biomimetic wear-resistant airfoil.

[0040] Fourthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the method for determining the biomimetic wear-resistant airfoil.

[0041] According to the specific embodiments provided in this application, the following technical effects are disclosed:

[0042] This application provides a method, apparatus, and product for determining a biomimetic wear-resistant airfoil. Based on an image of a lizard's typical posture resisting wind and sand, a biomimetic wear-resistant airfoil is designed. The contour boundary of the typical posture is determined from the image, thus obtaining the contour boundary of the lizard's typical posture resisting wind and sand. Then, the suction surface contour and pressure surface contour of the biomimetic wear-resistant airfoil are determined based on the contour boundary. This contour boundary is used as the airfoil profile and stretched along the spanwise direction to obtain a two-dimensional airfoil with typical sand-facing posture characteristics. By utilizing the typical posture of a lizard resisting wind and sand, the airfoil obtained in this application can change the way sand particles impact the airfoil, thereby improving the erosion and wear resistance of the airfoil surface. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is an application environment diagram of a method for determining a biomimetic wear-resistant airfoil according to an embodiment of this application;

[0045] Figure 2 A flowchart illustrating a method for determining a biomimetic wear-resistant airfoil according to an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the fitting results provided in an embodiment of this application;

[0047] Figure 4 This is a cross-sectional schematic diagram of a biomimetic wear-resistant airfoil provided in an embodiment of this application.

[0048] Figure 5 A wear comparison diagram of a biomimetic wear-resistant airfoil and a conventional airfoil provided in an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] The method for determining the biomimetic wear-resistant airfoil provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be set up independently, integrated into server 104, or placed in the cloud or on other servers. Terminal 102 can send an image of a lizard's typical posture when resisting wind and sand to server 104. Server 104 receives the image and, based on it, determines the contour boundary of the typical posture; discretizes the contour boundary to obtain contour line feature points; divides the contour boundary using the contour line feature points and the curvature characteristics of the contour boundary; performs nonlinear smooth curve fitting using polynomials on the contour line feature points of the divided contour boundary; determines the suction surface contour and pressure surface contour of the biomimetic wear-resistant airfoil based on the fitting results; determines the biomimetic wear-resistant airfoil profile based on the suction surface contour and pressure surface contour; and uses 3D design software to perform lofting processing based on the biomimetic wear-resistant airfoil profile to generate the biomimetic wear-resistant airfoil. Server 104 can feed back the obtained airfoil model to terminal 102. In addition, in some embodiments, the method for determining the biomimetic wear-resistant airfoil can also be implemented by either server 104 or terminal 102. For example, terminal 102 can directly process images of the typical body posture of a lizard resisting wind and sand, or server 104 can obtain images of the typical body posture of a lizard resisting wind and sand from the data storage system and then process them.

[0052] In one exemplary embodiment, such as Figure 2 As shown, a method for determining a biomimetic wear-resistant airfoil is provided. This method is executed by a computer device, specifically a terminal or server, or both. In this embodiment, the method is applied to... Figure 1 Taking server 104 as an example, the explanation includes the following steps S201 to S208. Among them:

[0053] S201, acquire an image of the typical body posture of a lizard when resisting the impact of sandstorms; the typical body posture is the body posture that the lizard adjusts when sand particles hit its own body surface;

[0054] S202, Determine the outline boundary of the typical body posture based on the image of the typical body posture;

[0055] S203, discretize the contour boundary of a typical body shape to obtain the contour feature points;

[0056] S204, the contour boundary is divided by using the feature points of the contour line and the curvature features of the contour boundary;

[0057] S205, Polynomial nonlinear smooth curve fitting is performed on the feature points of the contour line of the segmentation result;

[0058] S206, Based on the fitting results, determine the suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil;

[0059] S207, the biomimetic wear-resistant airfoil profile is determined based on the suction surface profile and the pressure surface profile;

[0060] S208, based on the biomimetic wear-resistant airfoil profile, uses 3D design software for stretching processing to generate a biomimetic wear-resistant airfoil.

[0061] The design concept of this invention originates from the behavior of desert lizards in resisting wind and sand. By designing and constructing a wind and sand experimental platform, the behavioral responses of lizards in wind and sand were studied, and the mechanism of lizards' sand-facing behavior was investigated. Based on the desert lizard's resistance to wind and sand, a biomimetic wear-resistant airfoil was proposed.

[0062] This invention is based on the typical posture of desert lizards to resist wind and sand, and designs a biomimetic wear-resistant airfoil. The airfoil structure is consistent with the typical posture of desert lizards under windy and sandy conditions. Compared to a windless environment, when facing wind and sand, desert lizards slightly raise their heads and gradually bend them towards their backs until the head and back form a certain arc. This typical posture is a beneficial adjustment made by the lizard to reduce the damage caused by sand particles to its body surface.

[0063] The biomimetic wear-resistant airfoil is designed based on the contour lines of a lizard in its typical posture. By extracting the contours of the lizard's head, back, abdomen, and tail in the direction of the incoming airflow in its typical posture, the contour boundary of the lizard's typical posture resisting wind and sand is obtained. This contour boundary is used as the airfoil section and stretched along the spanwise direction to obtain a two-dimensional airfoil with typical sand-facing posture characteristics.

[0064] In an exemplary embodiment, S201 specifically includes:

[0065] A sandstorm experimental platform was constructed; the sandstorm experimental platform was used to acquire images of the lizard's behavioral response in sandstorms.

[0066] The sandstorm experimental platform includes a heating system, an air supply system, a material supply system, a pipeline system, a dust removal system, a measurement and control system, and a moving system. The sandstorm experimental platform can simulate a real desert sandstorm environment through adjustable temperature, adjustable wind speed, and variable solid phase concentration.

[0067] In an exemplary embodiment, S202 specifically includes:

[0068] S110, In the image of a typical body posture, an xy coordinate system is established with the starting point of the lower side of the lizard's tail as the origin, and feature points of the contour lines of the head, back, abdomen and tail of the lizard in the typical body posture in the direction of the incoming flow are extracted.

[0069] S111, based on the feature points of the contour line, a nonlinear smooth curve is used to fit the feature points to obtain the contour boundary of a typical body shape.

[0070] In an exemplary embodiment, the extracted contour feature points of the typical lizard body shape are divided into six parts—curve 1, curve 2, curve 3, curve 4, curve 5, and curve 6—based on the curvature characteristics of the contour lines. Figure 3 As shown, nonlinear smooth curve fitting was performed on the feature points of the six parts using polynomials, resulting in fitting curves 1, 2, 3, 4, 5, and 6, and the corresponding governing equations y1, y2, y3, y4, y5, and y6, as detailed below:

[0071] y1 = 0, 0 ≤ x ≤ 228.1

[0072] y2=7.69094583141533e -03 x 2 -3.52828148366162x+4.04638022616098e +02 228.1≤x≤253.3

[0073] y3 = 1.85071216823784e -05 x 5 -2.42784255067005e -02 x 4 +1.27369397544407e +01 x 3 -3.3402813229505e +03 x 2 +4.37900317097303e +05 x-2.295794028859e +07 253.3≤x≤275.0

[0074]

[0075] y5=5.07846643505935e -10 x 6 -6.39291285802748e -07 x 5+3.33906057351526e -04 x 4 -9.25752886825032e -02 x 3 +1.43613412541344e +01 x 2 -1.18119999888849e +03 x+4.02245116205783e +04 163.3 ≤ x ≤ 252.3

[0076] y6 = 6e -12 x 6 -3e -09 x 5 +4e -07 x 4 -3e -05 x 3 +0.001x 2 +0.038x+0.035, 0≤x≤163.3

[0077] Where y1, y2, y3, y4, y5 and y6 are the control equations corresponding to the fitting results, and x is the coordinate point.

[0078] y1, y2, and y3 are the control equations corresponding to the fitting curves of the lower tail and part of the abdomen, the abdomen near the head, and the lower jaw of the head, respectively, in the typical body posture of lizards resisting wind and sand. y4, y5, and y6 are the control equations corresponding to the fitting curves of the upper head, back, and upper tail of lizards, respectively, in the typical body posture of lizards resisting wind and sand.

[0079] In an exemplary embodiment, S206 specifically includes:

[0080] By connecting the fitting results corresponding to the control equations y1, y2, and y3 in sequence, the pressure surface profile of the biomimetic wear-resistant airfoil is obtained. By connecting the fitting results corresponding to the control equations y4, y5, and y6 in sequence, the suction surface profile of the biomimetic wear-resistant airfoil is obtained.

[0081] By connecting the pressure surface profile and suction surface profile of the biomimetic wear-resistant airfoil, the cross-section of the biomimetic wear-resistant airfoil is obtained, as shown below. Figure 4 As shown.

[0082] The maximum relative camber of the biomimetic wear-resistant airfoil is f = 0.06, and the location of the maximum camber is X. f =0.02, maximum relative thickness t=0.06.

[0083] The biomimetic wear-resistant airfoil profile provided by this invention can alter the way sand grains strike the airfoil. The pitch angle of the airfoil's leading edge allows the airfoil's nose to be nearly parallel to the direction of sand grain movement. This not only allows the biomimetic airfoil to avoid some of the sand grains' impact, thus reducing the number of times its surface is struck by sand grains, but also changes the impact position and angle of the sand grains, thereby weakening the impact intensity.

[0084] Compared with the prior art, the present invention has the following beneficial effects:

[0085] The biomimetic wear-resistant airfoil provided in this application is designed based on the typical body posture of desert lizards to resist wind and sand attacks. Desert lizards, living in windy and sandy environments, have evolved a typical body posture through long-term natural selection to resist wind and sand attacks, making their body surface almost undamaged. The biomimetic wear-resistant airfoil proposed based on the contour lines of this typical body posture can achieve near-parallel alignment between the airfoil's nose and the direction of sand grain movement under windy and sandy conditions. This allows the airfoil surface to avoid some of the sand grain impact and changes the impact position and angle of the sand grains, thereby weakening the impact intensity.

[0086] This application uses the outline of a lizard in a typical sand-facing posture as the cross-section of a biomimetic wear-resistant airfoil, fully respecting the results of natural selection. Compared with conventional airfoils, the wear area and wear intensity of the biomimetic airfoil surface are significantly reduced, exhibiting excellent wear resistance, such as... Figure 5 As shown.

[0087] The biomimetic wear-resistant airfoil provided in this application can improve the erosion and wear resistance of the airfoil surface and extend its service life. By changing the way sand particles strike, the airfoil nose can be made nearly parallel to the direction of sand particle movement, allowing the airfoil surface to avoid some of the sand particles' impact, and changing the impact position and angle of the sand particles, thereby weakening the impact intensity of the sand particles.

[0088] Based on the same inventive concept, this application also provides a biomimetic wear-resistant airfoil determining device for implementing the above-described biomimetic wear-resistant airfoil determining method. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the biomimetic wear-resistant airfoil determining device provided below can be found in the limitations of the biomimetic wear-resistant airfoil determining method described above, and will not be repeated here.

[0089] In one exemplary embodiment, a device for determining a biomimetic wear-resistant airfoil includes:

[0090] The typical body posture image acquisition module is used to acquire images of the typical body posture of a lizard when resisting the impact of sandstorms; the typical body posture is the body posture that the lizard adjusts when sand particles hit its own body surface;

[0091] The contour boundary determination module is used to determine the contour boundary of a typical body shape based on an image of a typical body shape.

[0092] The contour feature point determination module is used to discretize the contour boundaries of typical body shapes to obtain contour feature points;

[0093] The contour boundary division module is used to divide the contour boundary using contour line feature points and contour boundary curvature features;

[0094] The curve fitting module is used to perform nonlinear smooth curve fitting on the feature points of the contour lines of the segmentation results using polynomials.

[0095] The suction surface profile and pressure surface profile determination module is used to determine the suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil based on the fitting results.

[0096] The airfoil profile determination module is used to determine the biomimetic wear-resistant airfoil profile based on the suction surface profile and the pressure surface profile.

[0097] The airfoil generation module is used to generate a biomimetic wear-resistant airfoil by using 3D design software to perform lofting processing based on the biomimetic wear-resistant airfoil profile.

[0098] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal. The computer device includes a processor, memory, input / output interfaces (I / O), and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is connected to the system bus via the I / O interfaces. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The I / O interfaces of the computer device are used for exchanging information between the processor and external devices. The communication interface of the computer device is used for communicating with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for determining a biomimetic wear-resistant airfoil.

[0099] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0100] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0101] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0102] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0103] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for determining a biomimetic wear-resistant airfoil, characterized in that, The method for determining the biomimetic wear-resistant airfoil includes: Images of typical body postures of lizards resisting sandstorms are obtained; the typical body posture is the body posture adjusted by the lizard when sand particles hit its own body surface; when desert lizards are facing sandstorms, they raise their heads and gradually bend them towards their backs until the head and back form a specific arc. Determine the outline boundary of the typical body posture based on the image of the typical body posture; Discretize the contour boundaries of typical body shapes to obtain contour feature points; The contour boundary is divided using the feature points of the contour line and the curvature features of the contour boundary; Polynomials were used to fit nonlinear smooth curves to the feature points of the segmented contour lines. The suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil are determined based on the fitting results. The biomimetic wear-resistant airfoil profile is determined based on the suction surface profile and the pressure surface profile. Based on the biomimetic wear-resistant airfoil profile, a three-dimensional design software was used to perform an extrusion operation to generate a biomimetic wear-resistant airfoil. The biomimetic wear-resistant airfoil was designed based on the contour line of a lizard in a typical body posture. By extracting the contours of the head, back, abdomen, and tail of the lizard in a typical body posture in the direction of the incoming flow, the contour boundary of the lizard in a typical body posture resisting wind and sand was obtained. This contour boundary was used as the airfoil profile and stretched along the spanwise direction to obtain a two-dimensional airfoil with typical sand-facing body posture characteristics. The acquisition of images showing the typical posture of a lizard resisting wind and sandstorms specifically includes: A sandstorm experimental platform was constructed to acquire images of lizards' behavioral responses in sandstorms. The platform includes a heating system, an air supply system, a material supply system, a pipeline system, a dust removal system, a measurement and control system, and a movement system. The platform can simulate a real desert sandstorm environment through adjustable temperature, adjustable wind speed, and variable solid concentration. The governing equations corresponding to the fitting results specifically include: y1 = 0, 0 ≤ x ≤ 228.1 y2=7.69094583141533e -03 x 2 -3.52828148366162x+4.04638022616098e +02 ,228.1≤x≤253.3 y3=1.85071216823784e -05 x 5 -2.42784255067005e -02 x 4 +1.27369397544407e +01 x 3 -3.3402813229505e +03 x 2 +4.37900317097303e +05 x-2.295794028859e +07 ,253.3≤x≤275.0 y4=-1.09564078253634e -06 x 6 +1.72356438156742e -03 x 5 -1.12958252932075x 4 +3.94774499203293e +02 x 3 -7.75969019035025e +04 x 2 +8.13354506729073e +06 x -3.55177591961373e +08 253.3 ≤ x ≤ 275.0 y5=5.07846643505935e -10 x 6 -6.39291285802748e -07 x 5 +3.33906057351526e -04 x 4 -9.25752886825032e -02 x 3 +1.43613412541344e +01 x 2 -1.18119999888849e +03 x +4.02245116205783e +04 ,163.3≤x≤252.3 y6=6e -12 x 6 -3e -09 x 5 +4e -07 x 4 -3e -05 x 3 +0.001x 2 +0.038x+0.035,0≤x≤163.3 In the formula, y1, y2, y3, y4, y5, and y6 are the control equations corresponding to the fitting results, and x is the coordinate point; y1, y2, and y3 are the control equations corresponding to the fitting curves of the lower tail and part of the abdomen, the abdomen near the head, and the lower jaw of the head, respectively, in the typical body posture of lizards resisting wind and sand; y4, y5, and y6 are the control equations corresponding to the fitting curves of the upper head, back, and upper tail of lizards, respectively, in the typical body posture of lizards resisting wind and sand.

2. The method for determining the biomimetic wear-resistant airfoil according to claim 1, characterized in that, The step of determining the contour boundary of a typical body posture based on an image of a typical body posture specifically includes: In images of typical body postures, an xy coordinate system is established with the starting point of the lower side of the lizard's tail as the origin. Feature points of the contour lines of the lizard's head, back, abdomen, and tail in the direction of the incoming flow are extracted when the lizard is in a typical body posture. Based on the feature points of the contour line, a nonlinear smooth curve is used to fit the feature points to obtain the contour boundary of a typical body shape.

3. The method for determining the biomimetic wear-resistant airfoil according to claim 1, characterized in that, Maximum relative camber of biomimetic wear-resistant airfoil Location of maximum curvature Maximum relative thickness 4. A device for determining a biomimetic wear-resistant airfoil, to implement the method for determining a biomimetic wear-resistant airfoil according to any one of claims 1-3, characterized in that, The device for determining the biomimetic wear-resistant airfoil includes: The typical body posture image acquisition module is used to acquire images of the typical body posture of a lizard when resisting the impact of sandstorms; the typical body posture is the body posture that the lizard adjusts when sand particles hit its own body surface; The contour boundary determination module is used to determine the contour boundary of a typical body shape based on an image of a typical body shape. The contour feature point determination module is used to discretize the contour boundaries of typical body shapes to obtain contour feature points; The contour boundary division module is used to divide the contour boundary using contour line feature points and contour boundary curvature features; The curve fitting module is used to perform nonlinear smooth curve fitting on the feature points of the contour lines of the segmentation results using polynomials. The suction surface profile and pressure surface profile determination module is used to determine the suction surface profile and pressure surface profile of the biomimetic wear-resistant airfoil based on the fitting results. The airfoil profile determination module is used to determine the biomimetic wear-resistant airfoil profile based on the suction surface profile and the pressure surface profile. The airfoil generation module is used to generate a biomimetic wear-resistant airfoil by using 3D design software to perform lofting processing based on the biomimetic wear-resistant airfoil profile.

5. A computer device, comprising: The memory and processor contain a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the method for determining the biomimetic wear-resistant airfoil according to any one of claims 1-3.

6. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the method for determining the biomimetic wear-resistant airfoil as described in any one of claims 1-3.

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