A method, device, equipment and medium for rapid selection of front wall panel impact-resistant structure

Abstract

This application discloses a method, apparatus, equipment, and medium for rapid selection of front wall panel impact-resistant structures. The method includes the following steps: S1, extracting the two-dimensional cross-sectional profile of the separator inner wall component; S2, establishing a small-thickness cross-sectional solid finite element model based on the two-dimensional cross-sectional profile; S3, establishing an SPH or Lagrange single-layer bird / ice finite element model; S4, assembling the above two finite element models into a finite element analysis model of a bird / ice impact model with a small-thickness cross-sectional profile; S5, performing explicit analysis and calculation on the finite element analysis model to obtain the process and damage results of the front wall panel structure under impact; S6, repeating the above process to obtain the process and damage results of front wall panel structures with different configurations or different materials under impact; S7, comparing the impact deformation and damage results of front wall panel structures with different configurations or different materials to complete the rapid selection of front wall panel impact-resistant structures. The selection process of this application has high analysis efficiency and a short cycle.

Description

Technical Field

[0001] This invention relates to the field of aero-engine technology, and in particular to a method, apparatus, equipment, and medium for rapid selection of front panel impact-resistant structures. Background Technology

[0002] Inertial particle separators, representing the air intake protection components of turboshaft engines, are widely used to separate sand, dust, bird, and ice debris. Currently, the commonly used inner wall components of inertial particle separators consist of metal panels, composite panels, supports, mounting edges, fasteners, and connectors. Hot air is often circulated between the outer and inner wall panels to prevent icing. Because helicopters may ingest birds, hail, and other objects during high-speed flight, this inevitably causes a significant impact on the separator's front wall panel, leading to failure, deformation, bulging, cracking, and air leakage. This negatively impacts structural strength, separation efficiency, and aerodynamic performance. Therefore, the impact-resistant design of the particle separator's inner wall components is particularly important.

[0003] Current technologies all rely on 3D models to select the impact-resistant structure of the front wall panel of the particle separator inner wall component, which is costly and time-consuming. Summary of the Invention

[0004] This application provides a method for rapid selection of front wall panel impact-resistant structures to solve the technical problems of high cost and long cycle when selecting front wall panel impact-resistant structures for particle separator inner wall components in the prior art.

[0005] This application is achieved through the following solution:

[0006] A rapid selection method for front wall panel impact-resistant structure includes the following steps:

[0007] S1. Extract the two-dimensional cross-sectional line type containing the particle separator inner wall component as the modeling benchmark for selection. The particle separator inner wall component includes the front wall panel structure and related support structure.

[0008] S2. Based on the two-dimensional cross-sectional profile containing the inner wall components of the particle separator, establish a solid finite element model with a small thickness cross-section.

[0009] S3. Establish an SPH or Lagrange single-layer bird / ice finite element model;

[0010] S4. Assemble the thin-thickness profile solid finite element model, SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice foreign object impact thin-thickness profile model;

[0011] S5. Perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects.

[0012] S6. Replace the two-dimensional cross-sectional model with different configurations or materials, and repeat the above process to obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects.

[0013] S7. Compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structure.

[0014] Furthermore, in step S1, the extracted two-dimensional cross-sectional profile containing the inner wall components of the particle separator includes all components of the separator's load-bearing structure, specifically including: the structural profiles of the front outer wall panel, the front inner wall panel, the rear outer wall panel, the rear inner wall panel, the support, and the mounting edge.

[0015] Furthermore, in step S2, when establishing a small-thickness cross-sectional solid finite element model based on the two-dimensional cross-sectional line containing the inner wall components of the particle separator, hexahedral explicit elements are used. The size of the hexahedral explicit elements in the thickness direction is less than or equal to 2% of the diameter of the entire ring of the separator, and the minimum size of the mesh established in the cross-sectional direction is consistent with the minimum size of the mesh in the thickness direction.

[0016] Furthermore, in step S3, when establishing the SPH or Lagrange single-layer bird / ice finite element model, a rectangular / circular SPH or Lagrange single-layer bird / ice finite element model is established based on the central cross section of the cylindrical simulated bird and the spherical hailstone object.

[0017] Furthermore, in step S4, when assembling the thin-thickness profile solid finite element model, SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice object impacting the thin-thickness profile model, the finite element analysis model restricts the degree of freedom in the thickness direction, so that all elements or particles move in the plane of the profile direction. The fixed support method of the thin-thickness profile solid finite element model is consistent with the fixed support method of the installation edge of the separator under the actual impact state. The impact search method is established between the bird / ice object and the thin-thickness profile solid finite element model in a point-to-surface contact manner. The components of the separator are fixed or in surface-to-surface contact according to the actual situation.

[0018] Furthermore, in step S5, when performing explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of a foreign object, the damage results are used as the maximum deformation of the front wall panel as a characteristic evaluation parameter.

[0019] Furthermore, in step S7, the impact deformation and damage results of front wall panel structures with different configurations or materials under external impact are compared. When rapidly screening front wall panel impact-resistant structures by observing or calculating the damage area or damage morphology severity, the evaluation coefficient is optimized. CAs an evaluation standard, C The higher the value, the better the selection:

[0020] ;

[0021] in, n This is the fracture loss coefficient for the front panel. If the front panel does not fracture during the impact, then... n =1, if the front wall panel breaks, then n =0.5; L This represents the maximum displacement at the rear mounting point of the front panel during impact. S The maximum deformation cross-sectional area of ​​the front panel during impact is calculated from the area enclosed by the line connecting the front and rear installation points and the deformation surface.

[0022] This application also provides a rapid selection device for the front wall panel impact-resistant structure, including:

[0023] The two-dimensional profile line extraction module is used to extract two-dimensional profile lines containing the particle separator inner wall components as a modeling benchmark for selection. The particle separator inner wall components include the front wall panel structure and related support structures.

[0024] The module for establishing a solid finite element model with a small thickness profile is used to establish a solid finite element model with a small thickness profile based on the two-dimensional profile line containing the inner wall components of the particle separator.

[0025] The module for creating single-layer bird / ice finite element models is used to create SPH or Lagrange single-layer bird / ice finite element models.

[0026] The finite element analysis model assembly module is used to assemble a thin-thickness profile solid finite element model, an SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of a bird / ice object impact with a thin-thickness profile.

[0027] The explicit analysis and calculation module is used to perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects.

[0028] The repeat calculation module is used to replace the two-dimensional cross-sectional line model with different configurations or materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects.

[0029] The rapid screening module is used to compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and to observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structures.

[0030] This application also provides an electronic 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 steps of the rapid selection method for the front wall panel impact-resistant structure.

[0031] This application also provides a storage medium including a stored program that, when the program is executed, controls the device containing the storage medium to perform the steps of the rapid selection method for the front wall panel impact-resistant structure.

[0032] Compared with the prior art, this application has the following advantages:

[0033] This application provides a method, apparatus, equipment, and medium for rapid selection of impact-resistant structures for front wall panels. The method is based on the cross-sectional profile of the inner wall components of a particle separator, constructing an impact analysis model for the inner wall components with a small thickness profile. It rapidly calculates the impact process and response of the small-thickness profile of the front wall panel, mapping the deformation of the small-thickness profile to the impact dents and deformations of the actual structure. This allows for the rapid selection of the most optimized solution among inner wall components of separators with different structures or materials, supporting early and rapid selection of separator structures. Because this application uses a small-thickness model in the selection process, it significantly improves computational analysis efficiency. Compared with existing analyses using a full-ring model, it can save over 90% of computer time, resulting in lower costs and shorter cycles.

[0034] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0037] Figure 1 This is a schematic diagram of the rapid selection method for the front wall panel impact-resistant structure according to a preferred embodiment of this application;

[0038] Figure 2 This is a front view schematic diagram of a solid finite element model of a separator inner wall with a small thickness profile according to a preferred embodiment of this application;

[0039] Figure 3 This is a schematic front view of the SPH single-layer bird ice finite element model of a preferred embodiment of this application;

[0040] Figure 4 A schematic diagram of the finite element analysis model of a bird / ice impact profile model with a thin section, according to a preferred embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the impact process of a foreign object on the front wall panel structure according to a preferred embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the damage results of the front wall panel structure in a preferred embodiment of this application;

[0043] Figure 7 This is a schematic diagram of the rapid selection device module for the front wall panel impact-resistant structure according to a preferred embodiment of this application;

[0044] Figure 8 This is a schematic block diagram of an electronic device according to a preferred embodiment of this application;

[0045] Figure 9 This is an internal structural diagram of a computer device according to a preferred embodiment of this application. Detailed Implementation

[0046] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0047] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0048] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a rapid selection device for front wall panel impact-resistant structures capable of achieving the above functions. The following description uses a rapid selection device for front wall panel impact-resistant structures as the executing entity to illustrate this embodiment and the subsequent embodiments.

[0049] like Figure 1 As shown, a preferred embodiment of this application provides a method for rapid selection of impact-resistant structures for front panels, including the following steps:

[0050] S1. Extract the two-dimensional cross-sectional line type containing the particle separator inner wall component as the modeling benchmark for selection. The particle separator inner wall component includes the front wall panel structure and related support structure.

[0051] S2. Based on the two-dimensional cross-sectional profile containing the inner wall components of the particle separator, establish a solid finite element model with a small thickness cross-section.

[0052] S3. Establish an SPH or Lagrange single-layer bird / ice finite element model;

[0053] S4. Assemble the thin-thickness profile solid finite element model, SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice foreign object impact thin-thickness profile model;

[0054] S5. Perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects.

[0055] S6. Replace the two-dimensional cross-sectional model with different configurations or materials, and repeat the above process to obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects.

[0056] S7. Compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structure.

[0057] This embodiment provides a rapid selection method for the impact-resistant structure of the front wall panel. Based on the cross-sectional profile of the particle separator inner wall assembly, this method constructs an impact analysis model for the inner wall assembly with a small thickness profile. It quickly calculates the impact process and response of the small-thickness profile of the front wall panel, mapping the deformation of the small-thickness profile to the impact dents and deformations of the actual structure. This allows for the rapid selection of the most optimized solution among separator inner wall assemblies of different structures or materials, supporting early and rapid selection of separator structures. Because this embodiment uses a small-thickness model in the selection process, it significantly improves computational analysis efficiency. Compared with existing analyses using a full-ring model, it can save more than 90% of computing time, resulting in lower costs and a shorter cycle.

[0058] Preferably, in step S1, the extracted two-dimensional cross-sectional profile containing the particle separator inner wall components includes all components of the separator load-bearing structure, specifically including: the structural profiles of the front outer wall panel, the front inner wall panel, the rear outer wall panel, the rear inner wall panel, the support, and the mounting edge.

[0059] In this embodiment, the extracted two-dimensional cross-sectional profile containing the inner wall components of the particle separator includes all the components of the separator's load-bearing structure, specifically including: the front outer wall plate, the front inner wall plate, the rear outer wall plate, the rear inner wall plate, the support, and the structural profile of the mounting edge. The purpose and benefits of including all the components of the separator's load-bearing structure are as follows: by using a quasi-two-dimensional approach to establish a small-thickness model, it is possible to ensure the damage characteristics of the model's impact center area slice, and it is also possible to avoid carrying out large-scale full three-dimensional solid modeling and full three-dimensional numerical simulation, which can greatly improve the analysis efficiency.

[0060] In a preferred embodiment of this application, when establishing a small-thickness cross-sectional solid finite element model in step S2 based on the two-dimensional cross-sectional line containing the inner wall component of the particle separator, hexahedral explicit elements are used. The size of the hexahedral explicit elements in the thickness direction is less than or equal to 2% of the diameter of the separator ring, and the minimum size of the mesh established in the cross-sectional direction is consistent with the minimum size of the mesh in the thickness direction.

[0061] In this embodiment, hexahedral explicit elements are used when establishing the finite element model of the small-thickness cross-section solid. Moreover, the size of the hexahedral explicit elements in the thickness direction is less than or equal to 2% of the diameter of the separator ring. The minimum size of the mesh established in the cross-section direction is consistent with the minimum size of the mesh in the thickness direction. The purpose and benefits of this setting include: ensuring the quality of finite element meshing and calculation accuracy.

[0062] In a preferred embodiment of this application, when establishing the SPH or Lagrange single-layer bird / ice finite element model in step S3, a rectangular / circular SPH or Lagrange single-layer bird / ice finite element model is established based on the central cross section of the cylindrical simulated bird and the spherical hailstone object.

[0063] In this embodiment, the purpose and benefits of establishing a rectangular / circular SPH or Lagrange single-layer bird / ice finite element model based on the central cross-section of a cylindrical simulated bird and a spherical hailstone are: to simplify modeling.

[0064] In a preferred embodiment of this application, when assembling the thin-thickness profile solid finite element model, SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice object impacting a thin-thickness profile model in step S4, the finite element analysis model restricts the degree of freedom in the thickness direction, so that all elements or particles move in the plane of the profile direction. The fixed support method of the thin-thickness profile solid finite element model is consistent with the fixed support method of the installation edge of the separator under the actual impact state. The impact search method is established between the bird / ice object and the thin-thickness profile solid finite element model in a point-to-surface contact manner. The components of the separator are fixed or in surface-to-surface contact according to the actual situation.

[0065] In this embodiment, when assembling a thin-thickness profile solid finite element model, an SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice impact on a thin-thickness profile, an impact search method is established for the thickness direction of the finite element analysis model, the fixed support method of the thin-thickness profile solid finite element model, and the point-to-surface contact method. The components of the separator are fixed or in contact with each other according to the actual situation. The purpose and benefits of this setting include: characterizing the real contact state and load transfer state between the components of the separator, which is closer to the real analysis results than the common node or element-tied method.

[0066] In a preferred embodiment of this application, when performing explicit analysis and calculation on the assembled finite element analysis model in step S5 to obtain the process and damage results of the front wall panel structure under the impact of a foreign object, the damage results are used as the maximum deformation of the front wall panel as a characteristic evaluation parameter.

[0067] In this embodiment, when analyzing and calculating the process and damage results of the front wall panel structure under the impact of a foreign object, the damage results are used as the maximum deformation of the front wall panel as a characteristic evaluation parameter. The purpose and benefits include that the response of the front wall panel during the impact can be intuitively characterized, and the impact deformation of the front wall panel of the separator inner wall assembly can be directly compared in subsequent verification.

[0068] In a preferred embodiment of this application, in step S7, the impact deformation damage results of front wall panel structures with different configurations or materials under external impact are compared. When rapidly screening front wall panel impact-resistant structures by observing or calculating the damage area or damage morphology severity, an optimal evaluation coefficient is used. C As an evaluation standard, C The higher the value, the better the selection:

[0069] ;

[0070] in, n This is the fracture loss coefficient for the front panel. If the front panel does not fracture during the impact, then... n =1, if the front wall panel breaks, then n =0.5; L This represents the maximum displacement at the rear mounting point of the front panel during impact. S The maximum deformation cross-sectional area of ​​the front panel during impact is calculated from the area enclosed by the line connecting the front and rear installation points and the deformation surface.

[0071] In this embodiment, a preferred evaluation coefficient is set. C As a basis for rapid selection, the optimal evaluation coefficient C The front panel was damaged, which reduced its anti-icing capability. n Is the overall displacement too large? L ), and whether the deformation and dents are too large ( S This affects the foreign object removal characteristics and subsequent aerodynamic performance, thus enabling the rapid selection of a more optimized solution among separator inner wall components of different structures or materials.

[0072] The rapid selection method for the impact-resistant structure of the front wall panel of the present invention will be described in detail below through another embodiment. This embodiment takes the impact-resistant selection analysis of the separator's front wall panel under a 100g bird strike as an example, combined with the accompanying drawings, to provide a detailed explanation of the technical solution.

[0073] A rapid selection method for front wall panel impact-resistant structure includes the following steps:

[0074] S1. Extract the two-dimensional cross-sectional line type containing the particle separator inner wall component as the modeling benchmark for selection. The particle separator inner wall component includes the front wall panel structure and related support structure. The front wall panel is initially made of 2A12 aluminum alloy.

[0075] S2, such as Figure 2 As shown, a small-thickness section solid finite element model is established based on the two-dimensional cross-sectional line containing the inner wall components of the particle separator.

[0076] S3, such as Figure 3 As shown, a single-layer bird / ice finite element model of SPH is established;

[0077] S4, such as Figure 4 As shown, a finite element analysis model is formed by assembling a small-thickness profile solid finite element model, an SPH or Lagrange single-layer bird / ice finite element model into a bird / ice foreign object impact small-thickness profile model.

[0078] S5, such as Figure 5 As shown, explicit analysis and calculations were performed on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under impact from a foreign object; as... Figure 6 As shown, the front panel is not cracked. n =1; Measured L =0.14mm, S =616mm2, calculated as follows C =0.012;

[0079] S6. Replace the front wall panel material with TC4 titanium alloy, repeat steps S1~S5 to carry out modeling, calculation and analysis, and obtain the process and damage results of the front wall panel structure of 2A12 aluminum alloy and TC4 titanium alloy under the impact of foreign objects.

[0080] S7. Calculate the optimal evaluation coefficient for the two selection schemes. C By comparing their sizes, a rapid optimization result is obtained. In this embodiment, the optimization evaluation coefficient C of the first selection scheme is 0.012. ， The optimal evaluation coefficient C for the second selection scheme is 0.015. It can be seen that since the optimal evaluation coefficient C for the second selection scheme is larger, the second selection scheme is selected as the final front wall panel impact resistance structure selection.

[0081] like Figure 7 As shown, another preferred embodiment of this application also provides a rapid selection device for the front wall panel impact-resistant structure, including:

[0082] The two-dimensional profile line extraction module is used to extract two-dimensional profile lines containing the particle separator inner wall components as a modeling benchmark for selection. The particle separator inner wall components include the front wall panel structure and related support structures.

[0083] The module for establishing a solid finite element model with a small thickness profile is used to establish a solid finite element model with a small thickness profile based on the two-dimensional profile line containing the inner wall components of the particle separator.

[0084] The module for creating single-layer bird / ice finite element models is used to create SPH or Lagrange single-layer bird / ice finite element models.

[0085] The finite element analysis model assembly module is used to assemble a thin-thickness profile solid finite element model, an SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of a bird / ice object impact with a thin-thickness profile.

[0086] The explicit analysis and calculation module is used to perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects.

[0087] The repeat calculation module is used to replace the two-dimensional cross-sectional line model with different configurations or materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects.

[0088] The rapid screening module is used to compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and to observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structures.

[0089] The proposed device for rapid selection of front wall panel impact-resistant structures, employing the rapid selection method described in the above embodiments, solves the technical problems of high cost and long cycle time in the prior art when selecting the front wall panel impact-resistant structure for particle separator inner wall components. Compared with the prior art, the beneficial effects of the electronic device provided in this application are the same as those of the rapid selection method for front wall panel impact-resistant structures provided in the above embodiments, and other technical features of the electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0090] like Figure 8 As shown, a preferred embodiment of this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the rapid selection method for the front wall impact-resistant structure in the above embodiments.

[0091] The electronic device provided in this application, employing the rapid selection method for the front wall impact-resistant structure in the above embodiments, can solve the technical problems of high cost and long cycle when selecting the front wall impact-resistant structure of the inner wall component of the particle separator in the prior art. Compared with the prior art, the beneficial effects of the electronic device provided in this application are the same as those of the rapid selection method for the front wall impact-resistant structure provided in the above embodiments, and other technical features of the electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0092] like Figure 9 As shown, a preferred embodiment of this application also provides a computer device, which may be a terminal or a liveness detection server, and its internal structure diagram may be as follows. Figure 9 As shown. The computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with other external computer devices via a network connection. When the computer program is executed by the processor, it implements the steps of the aforementioned rapid selection method for the front wall panel impact-resistant structure.

[0093] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0094] The computer equipment provided in this application, employing the rapid selection method for the front wall impact-resistant structure in the above embodiments, can solve the technical problems of high cost and long cycle when selecting the front wall impact-resistant structure of the particle separator inner wall component in the prior art. Compared with the prior art, the beneficial effects of the computer equipment provided in this application are the same as the beneficial effects of the rapid selection method for the front wall impact-resistant structure provided in the above embodiments, and will not be repeated here.

[0095] A preferred embodiment of this application also provides a storage medium, the storage medium including a stored program, which, when the program is executed, controls the device where the storage medium is located to perform the steps of the rapid selection method for front wall impact-resistant structures in the above embodiments.

[0096] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0097] If the functions described in this embodiment are implemented as software functional units and sold or used as independent products, they can be stored in one or more computing device-readable storage media. Based on this understanding, the parts of this application's embodiments that contribute to the prior art or the technical solutions can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage media include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0098] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of this application can be implemented in various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0099] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0100] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0101] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0102] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the rapid selection method for front wall panel impact-resistant structures as described above.

[0103] The computer program product provided in this application can solve the technical problems of high cost and long cycle when selecting the impact-resistant structure of the front wall panel of the particle separator inner wall assembly in the prior art. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the rapid selection method of the front wall panel impact-resistant structure provided in the above embodiments, and will not be repeated here.

[0104] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0105] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for rapid selection of impact-resistant structures for front wall panels, characterized in that, Including the following steps: S1. Extract the two-dimensional cross-sectional line type containing the particle separator inner wall component as the modeling benchmark for selection. The particle separator inner wall component includes the front wall panel structure and related support structure. S2. Based on the two-dimensional cross-sectional profile containing the inner wall components of the particle separator, establish a solid finite element model with a small thickness cross-section. S3. Establish an SPH or Lagrange single-layer bird / ice finite element model; S4. Assemble the thin-thickness profile solid finite element model, SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice object impacting a thin-thickness profile model; the finite element analysis model restricts the degree of freedom in the thickness direction, so that all elements or particles move in the plane of the profile direction, and the fixed support method of the thin-thickness profile solid finite element model is consistent with the fixed support method of the installation edge of the separator under the actual impact state. The impact search method is established between the bird / ice object and the thin-thickness profile solid finite element model in a point-to-surface contact manner, and the components of the separator are fixed or in surface-to-surface contact according to the actual situation. S5. Perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects. S6. Replace the two-dimensional cross-sectional model with different configurations or materials, and repeat the above process to obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects. S7. Compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structure.

2. The rapid selection method for the impact-resistant structure of the front wall panel according to claim 1, characterized in that, In step S1, the extracted two-dimensional cross-sectional profile containing the inner wall components of the particle separator includes all the components of the separator's load-bearing structure, specifically including: the structural profiles of the front outer wall panel, the front inner wall panel, the rear outer wall panel, the rear inner wall panel, the support, and the mounting edge.

3. The rapid selection method for the impact-resistant structure of the front wall panel according to claim 1, characterized in that, In step S2, when establishing a small-thickness section solid finite element model based on the two-dimensional cross-sectional line containing the inner wall components of the particle separator, hexahedral explicit elements are used. The size of the hexahedral explicit elements in the thickness direction is less than or equal to 2% of the diameter of the separator ring. The minimum size of the mesh established in the cross-sectional direction is consistent with the minimum size of the mesh in the thickness direction.

4. The method for rapid selection of front wall panel impact-resistant structure according to claim 1, characterized in that, When establishing the SPH or Lagrange single-layer bird / ice finite element model in step S3, a rectangular / circular SPH or Lagrange single-layer bird / ice finite element model is established based on the central cross section of the cylindrical simulated bird and the spherical hailstone.

5. The rapid selection method for the impact-resistant structure of the front wall panel according to claim 1, characterized in that, In step S5, explicit analysis and calculation are performed on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects. The damage results are used as the maximum deformation of the front wall panel as the characteristic evaluation parameter.

6. The rapid selection method for the impact-resistant structure of the front wall panel according to claim 1, characterized in that, In step S7, the impact deformation and damage results of front wall panel structures with different configurations or materials under external impact are compared. When rapidly screening front wall panel impact-resistant structures by observing or calculating the damage area or damage morphology severity, the evaluation coefficient C is used as the evaluation standard. The higher the C value, the better the selection. Where n is the front wall panel breakage coefficient. If the front wall panel does not break during the impact, then n = 1; if the front wall panel breaks, then n = 0.

5. L is the maximum displacement of the rear mounting point of the front wall panel during the impact. S is the maximum deformation cross-sectional area of ​​the front wall panel during the impact, which is calculated from the area enclosed by the line connecting the front and rear mounting points and the deformation surface.

7. A rapid selection device for front wall panel impact-resistant structure, characterized in that, include: The two-dimensional profile line extraction module is used to extract two-dimensional profile lines containing the particle separator inner wall components as a modeling benchmark for selection. The particle separator inner wall components include the front wall panel structure and related support structures. The module for establishing a solid finite element model with a small thickness profile is used to establish a solid finite element model with a small thickness profile based on the two-dimensional profile line containing the inner wall components of the particle separator. The module for creating single-layer bird / ice finite element models is used to create SPH or Lagrange single-layer bird / ice finite element models. The finite element analysis model assembly module is used to assemble a thin-thickness profile solid finite element model, an SPH or Lagrange single-layer bird / ice finite element model into a finite element analysis model of bird / ice object impacting a thin-thickness profile. The finite element analysis model restricts the degree of freedom in the thickness direction, so that all elements or particles move in the plane of the profile direction. The fixed support method of the thin-thickness profile solid finite element model is consistent with the fixed support method of the installation edge of the separator under actual impact. The impact search method is established between the bird / ice object and the thin-thickness profile solid finite element model through point-to-surface contact. The components of the separator are fixed or in surface-to-surface contact according to the actual situation. The explicit analysis and calculation module is used to perform explicit analysis and calculation on the assembled finite element analysis model to obtain the process and damage results of the front wall panel structure under the impact of foreign objects. The repeat calculation module is used to replace the two-dimensional cross-sectional line model with different configurations or materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or materials under the impact of foreign objects. The rapid screening module is used to compare the impact deformation damage results of front wall panel structures with different configurations or materials under the impact of foreign objects, and to observe or calculate the damage area or damage morphology severity to quickly screen the front wall panel impact-resistant structures.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the rapid selection method for the front wall panel impact-resistant structure as described in any one of claims 1 to 6.

9. A storage medium comprising a stored program that, when the program is executed, controls a device in which the storage medium is located to perform the steps of the rapid selection method for front panel impact-resistant structures as described in any one of claims 1 to 6.

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