Quick model selection method, device and equipment for shock-resistant structure of front wall plate and medium

Abstract

The invention discloses a rapid model selection method, device and equipment for a front wall plate anti-impact structure and a medium. The method comprises the steps that S1, the two-dimensional profile line type of an inner wall assembly of a separator is extracted; s2, establishing a small-thickness profile entity finite element model by taking the two-dimensional profile linetype as a reference; s3, establishing an SPH or Lagrange single-layer bird / ice finite element model; s4, assembling the two finite element models into a finite element analysis model of the bird / ice foreign object impact small-thickness profile model; s5, carrying out explicit analysis calculation on the finite element analysis model to obtain a process and a damage result of the front wall plate structure under the impact of a foreign object; s6, repeating the process to obtain the process and the damage result of the front wall plate structures of different configurations or different materials under the impact of foreign objects; and S7, the impact deformation damage results of the front wallboard structures of different configurations or different materials are compared to complete rapid screening of the impact-resistant structures of the front wallboards. The model selection process is high in analysis efficiency and short in period.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation engines, and in particular to a method, device, equipment and medium for quickly selecting an impact-resistant structure of a front wall panel. Background Art

[0002] Turboshaft engine intake protection components, such as inertial particle separators, are widely used on turboshaft engines to separate foreign objects such as sand, dust, and bird ice. Currently, the inner wall components of common inertial particle separators can be composed of metal panels, composite panels, supports, mounting edges, fasteners, and connectors. Hot air is often passed between the front outer and inner panels to prevent ice. Since helicopters may inhale objects such as birds and hail during high-speed flight, this will inevitably cause significant impact on the separator's front wall, causing it to fail, deform, bulge, crack, and leak, which in turn adversely affects structural strength, separation efficiency, and aerodynamic performance. Therefore, the impact resistance design of the particle separator's inner wall components is particularly important.

[0003] Currently, existing technologies all use three-dimensional models to select the impact-resistant structure of the front wall plate of the inner wall assembly of the particle separator, which is costly and time-consuming. Summary of the Invention

[0004] On the one hand, the present application provides a method for quickly selecting the impact-resistant structure of the front wall plate, which is used to solve the technical problems of high cost and long cycle in the existing technology when selecting the impact-resistant structure of the front wall plate of the inner wall component of the particle separator.

[0005] This application is implemented through the following scheme: A method for quickly selecting a front wall panel impact-resistant structure comprises the following steps: S1. Extracting a two-dimensional cross-sectional line shape of an inner wall component of a particle separator as a modeling reference for selection, wherein the inner wall component of the particle separator includes a front wall plate structure and related supporting structures; S2. Using the two-dimensional cross-section line shape of the inner wall component of the particle separator as a reference, a small thickness cross-section solid finite element model is established; S3. Establish an SPH or Lagrangian single-layer bird / ice finite element model; S4. Assembling the small thickness section solid finite element model and the SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of the bird / ice foreign object impact small thickness section model; 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 line model with a different configuration or material, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configuration or material under the impact of the foreign object; S7. Compare the impact deformation damage results of front wall panel structures with different configurations or different materials under the impact of foreign objects, observe or calculate the damage area or severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

[0006] Furthermore, in step S1, the extracted two-dimensional cross-sectional line type containing the particle separator inner wall assembly includes all components of the separator load-bearing structure, specifically including: the front outer wall panel, the front inner wall panel, the rear outer wall panel, the rear inner wall panel, the support, and the structural line type of the installation edge.

[0007] Furthermore, in step S2, when establishing a small thickness section solid finite element model based on the two-dimensional section line shape of the inner wall component containing the particle separator, hexahedral explicit units are used, and the size of the hexahedral explicit unit in the thickness direction is less than or equal to 2% of the diameter of the entire separator ring, and the minimum size of the grid established in the section direction is consistent with the minimum size of the grid in the thickness direction.

[0008] Furthermore, when the SPH or Lagrangian single-layer bird / ice finite element model is established in step S3, a rectangular / circular SPH or Lagrangian single-layer bird / ice finite element model is established based on the central cross section of the cylindrical simulated bird or spherical hailstone external object.

[0009] Furthermore, in step S4, when the small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model are assembled into a finite element analysis model of the bird / ice foreign object impacting the small thickness section model, the finite element analysis model limits the degree of freedom in the thickness direction so that all units or particles move in the section direction plane, and the fixing method of the small thickness section solid finite element model is kept consistent with the fixing method of the mounting edge of the separator under the actual impact state. An impact search method is established between the bird / ice foreign object and the small thickness section solid finite element model in a point-to-surface contact manner, and the various components of the separator are fixed or in surface-to-surface contact according to actual conditions.

[0010] Furthermore, 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 the foreign object, and the damage results use the maximum deformation of the front wall panel as a characteristic evaluation parameter.

[0011] Furthermore, in step S7, the impact deformation damage results of the front wall panel structures of different configurations or different materials under the impact of foreign objects are compared, and the damage area or damage morphology severity is observed or calculated to quickly screen the front wall panel impact resistance structure. C For evaluation criteria, C The higher the value, the better the selection: ; in, nis the front wall panel fracture loss coefficient. If the front wall panel does not break during the impact, then n =1, if the front wall is broken, then n =0.5; L is the maximum displacement of the rear mounting point of the front wall panel during the impact process, S It is the maximum deformation cross-sectional area of the front wall panel during the impact process, which is calculated from the area enclosed by the line connecting the front and rear installation points and the deformation surface.

[0012] On the other hand, the present application also provides a device for quickly selecting the impact-resistant structure of a front wall panel, comprising: A two-dimensional section line type extraction module is used to extract the two-dimensional section line type of the particle separator inner wall component as a modeling reference for selection. The particle separator inner wall component includes the front wall plate structure and related supporting structures. A module for establishing a solid finite element model of a small thickness section is used to establish a solid finite element model of a small thickness section based on the two-dimensional section line shape of the inner wall component of the particle separator; Single-layer bird / ice finite element model building module, used to build SPH or Lagrangian single-layer bird / ice finite element model; Finite element analysis model assembly module, used to assemble a small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of a bird / ice foreign object impact small thickness section model; 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; A recalculation module is used to replace the two-dimensional cross-sectional line model with different configurations or different materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or different 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 different materials under the impact of foreign objects, observe or calculate the damage area or the severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

[0013] On the other hand, the present 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, the steps of the method for rapidly selecting the impact-resistant structure of the front wall panel are implemented.

[0014] On the other hand, the present application further provides a storage medium, which includes a stored program. When the program is running, the device where the storage medium is located is controlled to execute the steps of the method for quickly selecting the impact-resistant structure of the front wall panel.

[0015] Compared with the existing technology, this application has the following beneficial effects: The present application provides a method, device, equipment and medium for quickly selecting the impact-resistant structure of a front wall panel. The method for quickly selecting the impact-resistant structure of a front wall panel is based on the cross-sectional line shape of the inner wall component of the particle separator, and constructs a foreign object impact analysis model for the inner wall component with a small thickness cross-section. The method quickly calculates the impact process and response of the small thickness cross-section of the front wall panel, and uses the deformation of the small thickness cross-section to map the impact pits and deformation of the real structure, thereby quickly screening the more optimized solution among the inner wall components of the separator with different structures or different materials, and supporting the early and rapid selection of the separator structure. Since the selection process of the present application adopts a small thickness model, the efficiency of calculation and analysis is greatly improved. Compared with the existing full-ring model analysis, it can save more than 90% of computer time, with low cost and short cycle.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, a person skilled in the art can derive other drawings based on these drawings without inventive effort, among which: Figure 1 This is a flow chart of a method for quickly selecting an impact-resistant structure of a front wall panel according to a preferred embodiment of the present application; Figure 2 This is a schematic front view of a solid finite element model of a small thickness cross-section of the separator inner wall according to a preferred embodiment of the present application; Figure 3 This is a schematic diagram of the main view of the SPH single-layer bird ice finite element model of the preferred embodiment of the present application; Figure 4 Schematic diagram of a finite element analysis model of a bird / ice foreign object impact small thickness cross-section model according to a preferred embodiment of the present application; Figure 5 This is a schematic diagram of the process of a foreign object impacting the front wall panel structure in a preferred embodiment of the present application; Figure 6 This is a schematic diagram of the damage results of the front wall panel structure in a preferred embodiment of the present application; Figure 7 This is a schematic diagram of a module of a device for quickly selecting a front wall panel impact-resistant structure according to a preferred embodiment of the present application; Figure 8This is a schematic block diagram of an electronic device according to a preferred embodiment of the present application; Figure 9 It is a diagram of the internal structure of a computer device according to a preferred embodiment of the present application. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0020] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0021] It should be noted that the execution entity of this embodiment can be a computing service device with data processing, network communication, and program execution capabilities, such as a tablet computer, personal computer, or mobile phone, or a device capable of quickly selecting the impact-resistant structure of a front wall panel. This embodiment and the following embodiments will be described below using the device as the execution entity.

[0022] like Figure 1 As shown, the preferred embodiment of the present application provides a method for quickly selecting the impact-resistant structure of a front wall panel, comprising the steps of: S1. Extracting a two-dimensional cross-sectional line shape of an inner wall component of a particle separator as a modeling reference for selection, wherein the inner wall component of the particle separator includes a front wall plate structure and related supporting structures; S2. Using the two-dimensional cross-section line shape of the inner wall component of the particle separator as a reference, a small thickness cross-section solid finite element model is established; S3. Establish an SPH or Lagrangian single-layer bird / ice finite element model; S4. Assembling the small thickness section solid finite element model and the SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of the bird / ice foreign object impact small thickness section model; 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 line model with a different configuration or material, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configuration or material under the impact of the foreign object; S7. Compare the impact deformation damage results of front wall panel structures with different configurations or different materials under the impact of foreign objects, observe or calculate the damage area or severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

[0023] This embodiment provides a method for quickly selecting the impact-resistant structure of a front wall panel. The method is based on the cross-sectional line shape of the particle separator inner wall component, constructs a foreign object impact analysis model for the small-thickness cross-sectional inner wall component, quickly calculates the impact process and response of the small-thickness cross-sectional front wall panel, and uses the deformation of the small-thickness cross-sectional surface to map the impact pits and deformation of the real structure, thereby quickly screening the more optimized solutions among the separator inner wall components of different structures or different materials, and supporting the early and rapid selection of the separator structure. Because this embodiment uses a small-thickness model in the selection process, the efficiency of the calculation and analysis is greatly improved. Compared with the existing full-ring model analysis, it can save more than 90% of computer time, with low cost and short cycle time.

[0024] Preferably, in step S1, the extracted two-dimensional cross-sectional line type containing the particle separator inner wall assembly includes all components of the separator load-bearing structure, specifically including: the front outer wall panel, front inner wall panel, rear outer wall panel, rear inner wall panel, support, and installation edge structural line types.

[0025] In this embodiment, the extracted two-dimensional cross-sectional line type containing the inner wall assembly of the particle separator includes all components of the separator's load-bearing structure, specifically including: the front outer wall panel, the front inner wall panel, the rear outer wall panel, the rear inner wall panel, the support, and the structural line type of the installation edge. The reason for including all components of the separator's load-bearing structure is that its purpose and benefits include using a quasi-two-dimensional method to establish a small thickness model, which can not only ensure the damage characteristics of the slice in the center area of the model impact, but also avoid carrying out large-scale full three-dimensional solid modeling and full three-dimensional numerical simulation, and the analysis efficiency can be greatly improved.

[0026] In a preferred embodiment of the present application, in step S2, when establishing a small thickness section solid finite element model based on the two-dimensional section line type containing the inner wall component of the particle separator, hexahedral explicit units are used, and the size of the hexahedral explicit unit 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 grid established in the section direction is consistent with the minimum size of the grid in the thickness direction.

[0027] In this embodiment, hexahedral explicit units are used to establish a small thickness cross-section solid finite element model. Moreover, the size of the hexahedral explicit unit in the thickness direction is less than or equal to 2% of the diameter of the entire separator ring. The minimum size of the grid established in the cross-section direction is consistent with the minimum size of the grid in the thickness direction. The purpose and benefits of this setting include: ensuring the quality of the finite element meshing and calculation accuracy.

[0028] In a preferred embodiment of the present application, when establishing the SPH or Lagrangian single-layer bird / ice finite element model in step S3, a rectangular / circular SPH or Lagrangian single-layer bird / ice finite element model is established based on the central cross-section of the cylindrical simulated bird or spherical hail external object.

[0029] In this embodiment, the purpose and benefits of establishing a rectangular / circular SPH or Lagrangian single-layer bird / ice finite element model based on the central cross-section of the cylindrical simulated bird and the spherical hailstone external object include: simplifying modeling.

[0030] In a preferred embodiment of the present application, when the small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model are assembled into a finite element analysis model of the bird / ice foreign object impacting the small thickness section model in step S4, the finite element analysis model limits the degree of freedom in the thickness direction so that all units or particles move in the section direction plane, and the fixing method of the small thickness section solid finite element model is kept consistent with the fixing method of the mounting edge of the separator under the actual impact state. An impact search method is established between the bird / ice foreign object and the small thickness section 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 actual conditions.

[0031] In this embodiment, when assembling a small-thickness cross-section solid finite element model and an SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of a bird / ice foreign object impacting a small-thickness cross-section model, an impact search method is established for the thickness direction of the finite element analysis model, the fixed support method and the point-to-surface contact method of the small-thickness cross-section solid finite element model, and fixed connection or surface-to-surface contact is adopted between the separator components according to actual conditions. The purpose and benefits of such an arrangement include: characterizing the actual contact state and load transfer state between the separator components, and being closer to the actual analysis results than the common node or unit tied method.

[0032] In a preferred embodiment of the present application, in step S5, explicit analysis calculations 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, and the damage results use the maximum deformation of the front wall panel as a characteristic evaluation parameter.

[0033] In this embodiment, when analyzing and calculating the process and damage results of the front wall panel structure under the impact of foreign objects, the damage result uses the maximum deformation of the front wall panel as a characteristic evaluation parameter. Its purpose and benefits include being able to intuitively characterize the response of the front wall panel during the impact process, and in subsequent verification, the impact deformation of the front wall panel of the separator inner wall assembly can also be directly compared.

[0034] In a preferred embodiment of the present application, in step S7, the front wall panel structures of different configurations or different materials are compared with the impact deformation damage results under the impact of foreign objects, and the damage area or damage morphology severity is observed or calculated to quickly screen the impact resistance structure of the front wall panel. C For evaluation criteria, C The higher the value, the better the selection: ; in,n is the front wall panel fracture loss coefficient. If the front wall panel does not break during the impact, then n =1, if the front wall is broken, then n =0.5; L is the maximum displacement of the rear mounting point of the front wall panel during the impact process, S It is the maximum deformation cross-sectional area of the front wall panel during the impact process, which is calculated from the area enclosed by the line connecting the front and rear installation points and the deformation surface.

[0035] In this embodiment, by setting the optimal evaluation coefficient C As the basis for rapid selection, the optimal evaluation coefficient C Comprehensive consideration is given to whether the front wall panel is damaged and the anti-icing capability is reduced ( n ), whether the overall displacement is too large ( L ), and whether the deformation pit is too large ( S ) and affect the foreign object removal characteristics and subsequent aerodynamic performance, so as to scientifically and quickly screen the more optimized solution among the separator inner wall components with different structures or different materials.

[0036] The following is another example of a method for quickly selecting the impact-resistant structure of the front wall panel of the present invention. This example uses the impact-resistant selection analysis of the separator front wall panel under a 100g bird strike as an example, combined with the accompanying drawings, to explain the technical solution in detail.

[0037] A method for quickly selecting a front wall panel impact-resistant structure comprises the following steps: S1. Extracting a two-dimensional cross-sectional line shape of an inner wall component of a particle separator as a modeling reference for selection. The inner wall component of the particle separator includes a front wall plate structure and related supporting structures. The front wall plate is initially made of 2A12 aluminum alloy. S2, such as Figure 2 As shown, a small thickness section solid finite element model is established based on the two-dimensional section line shape of the particle separator inner wall component; S3, such as Figure 3 As shown, an SPH single-layer bird / ice finite element model is established; S4, such as Figure 4 As shown, the small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model are assembled into a finite element analysis model of the bird / ice foreign object impact small thickness section model; S5, such as Figure 5 As shown in , the assembled finite element analysis model is subjected to explicit analysis and calculation to obtain the process and damage results of the front wall structure under the impact of foreign objects; Figure 6 As shown, the front wall panel is not broken. n =1; measured L =0.14mm, S =616mm2, calculatedC =0.012; S6. Replace the front wall panel material with TC4 titanium alloy and repeat steps S1 to S5 to perform modeling, calculation and analysis to 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; S7. Calculate the optimal evaluation coefficient of the two selection schemes C , compare their sizes and obtain quick optimization results. In this embodiment, the optimization evaluation coefficient C of the first selection scheme is 0.012 ， The preferred evaluation coefficient C of the second selection scheme is 0.015. It can be seen that since the preferred evaluation coefficient C of the second selection scheme is larger, the second selection scheme is selected as the final selection of the front wall panel impact resistance structure.

[0038] like Figure 7 As shown, another preferred embodiment of the present application further provides a device for quickly selecting the impact-resistant structure of a front wall panel, comprising: A two-dimensional section line type extraction module is used to extract the two-dimensional section line type of the particle separator inner wall component as a modeling reference for selection. The particle separator inner wall component includes the front wall plate structure and related supporting structures. A module for establishing a solid finite element model of a small thickness section is used to establish a solid finite element model of a small thickness section based on the two-dimensional section line shape of the inner wall component of the particle separator; Single-layer bird / ice finite element model building module, used to build SPH or Lagrangian single-layer bird / ice finite element model; Finite element analysis model assembly module, used to assemble a small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of a bird / ice foreign object impact small thickness section model; 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; A recalculation module is used to replace the two-dimensional cross-sectional line model with different configurations or different materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or different 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 different materials under the impact of foreign objects, observe or calculate the damage area or the severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

[0039] The device for quickly selecting the impact-resistant structure of a front wall panel provided in the application utilizes the method for quickly selecting the impact-resistant structure of a front wall panel provided in the aforementioned embodiment, thereby resolving the technical issues of high cost and long lead times associated with selecting the impact-resistant structure of the front wall panel of the particle separator inner wall assembly in the prior art. Compared to the prior art, the electronic device provided in this application has the same beneficial effects as the method for quickly selecting the impact-resistant structure of a front wall panel provided in the aforementioned embodiment, and the other technical features of the electronic device are the same as those disclosed in the aforementioned embodiment, and are not further detailed here.

[0040] like Figure 8 As shown, a preferred embodiment of the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein the processor implements the steps of the method for quickly selecting the impact-resistant structure of the front wall panel in the above embodiment when executing the computer program.

[0041] The electronic device provided in this application utilizes the method for rapidly selecting the impact-resistant structure of the front wall panel described in the aforementioned embodiment, thereby resolving the technical issues of high cost and long lead times associated with prior art methods for selecting the impact-resistant structure of the front wall panel of the particle separator inner wall assembly. Compared to prior art, the electronic device provided in this application achieves the same beneficial effects as the method for rapidly selecting the impact-resistant structure of the front wall panel described in the aforementioned embodiment, and the other technical features of the electronic device are the same as those disclosed in the aforementioned embodiment, and are not further detailed here.

[0042] like Figure 9 As shown, the preferred embodiment of the present application further provides a computer device, which can be a terminal or a liveness detection server, and its internal structure diagram can be as shown in FIG. Figure 9 As shown. The computer device includes a processor, memory, and a network interface connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with other external computer devices via a network connection. When the computer program is executed by the processor, the steps of the above-mentioned method for quickly selecting the impact-resistant structure of the front wall panel are implemented.

[0043] Those skilled in the art will understand that Figure 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0044] The computer device provided in this application utilizes the method for rapidly selecting the impact-resistant structure of the front wall panel in the aforementioned embodiment, thereby resolving the technical issues of high cost and long lead times associated with prior art methods for selecting the impact-resistant structure of the front wall panel of the particle separator inner wall assembly. Compared to prior art methods, the beneficial effects of the computer device provided in this application are similar to those of the method for rapidly selecting the impact-resistant structure of the front wall panel in the aforementioned embodiment, and are not further elaborated here.

[0045] A preferred embodiment of the present application further provides a storage medium, which includes a stored program. When the program is running, the device where the storage medium is located is controlled to execute the steps of the method for quickly selecting the impact-resistant structure of the front wall panel in the above embodiment.

[0046] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0047] If the functions described in the method of this embodiment are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a storage medium readable by one or more computing devices. Based on this understanding, the part of the embodiment of this application that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for enabling a computing device (which can be a personal computer, server, mobile computing device or network device, etc.) to execute all or part of the steps of the method described in each embodiment of this application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program code.

[0048] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may 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 the present application may be implemented in various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0049] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0050] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0051] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0052] The present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the method for quickly selecting the impact-resistant structure of the front wall panel as described above.

[0053] The computer program product provided in this application can address the high cost and time required to select the impact-resistant structure of the front wall panel of the particle separator inner wall assembly in the prior art. Compared to the prior art, the beneficial effects of the computer program product provided in this application are similar to those of the method for rapidly selecting the impact-resistant structure of the front wall panel provided in the aforementioned embodiment, and are not further elaborated here.

[0054] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0055] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for quickly selecting a front wall panel impact-resistant structure, characterized in that: Including steps: S1. Extracting a two-dimensional cross-sectional line shape of an inner wall component of a particle separator as a modeling reference for selection, wherein the inner wall component of the particle separator includes a front wall plate structure and related supporting structures; S2. Using the two-dimensional cross-section line shape of the inner wall component of the particle separator as a reference, a small thickness cross-section solid finite element model is established; S3. Establish an SPH or Lagrangian single-layer bird / ice finite element model; S4. Assembling the small thickness section solid finite element model and the SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of the bird / ice foreign object impact small thickness section model; 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 line model with a different configuration or material, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configuration or material under the impact of the foreign object; S7. Compare the impact deformation damage results of front wall panel structures with different configurations or different materials under the impact of foreign objects, observe or calculate the damage area or severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

2. The method for quickly selecting the impact-resistant structure of the front wall panel according to claim 1, characterized in that: In step S1, the extracted two-dimensional section line type containing the particle separator inner wall component includes all components of the separator load-bearing structure, specifically including: the front outer wall panel, front inner wall panel, rear outer wall panel, rear inner wall panel, support, and installation edge structural line types.

3. The method for quickly selecting 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 section line shape containing the inner wall component of the particle separator, hexahedral explicit units are used. The size of the hexahedral explicit unit in the thickness direction is less than or equal to 2% of the diameter of the entire separator ring, and the minimum size of the grid established in the section direction is consistent with the minimum size of the grid in the thickness direction.

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

5. The method for quickly selecting the impact-resistant structure of the front wall panel according to claim 1, characterized in that: In step S4, when the small thickness section solid finite element model and the SPH or Lagrangian single-layer bird / ice finite element model are assembled into a finite element analysis model of the bird / ice foreign object impacting the small thickness section model, the finite element analysis model restricts the degree of freedom in the thickness direction so that all units or particles move within the section direction plane. The fixing method of the small thickness section solid finite element model is consistent with the fixing method of the mounting edge of the separator under the actual impact state. An impact search method is established between the bird / ice foreign object and the small thickness section solid finite element model in a point-to-surface contact manner. The components of the separator adopt fixed connection or surface-to-surface contact according to actual conditions.

6. The method for quickly selecting 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 the foreign object. The damage results use the maximum deformation of the front wall panel as a characteristic evaluation parameter.

7. The method for quickly selecting the impact-resistant structure of the front wall panel according to claim 1, characterized in that: In step S7, the front wall panel structures of different configurations or different materials are compared with the impact deformation damage results under the impact of foreign objects, and the damage area or damage morphology severity is observed or calculated to quickly screen the front wall panel impact resistance structure. C For evaluation criteria, C The higher the value, the better the selection: ； in, n is the front wall panel fracture loss coefficient. If the front wall panel does not break during the impact, then n =1, if the front wall is broken, then n =0.5; L is the maximum displacement of the rear mounting point of the front wall panel during the impact process, S It is the maximum deformation cross-sectional area of the front wall panel during the impact process, which is calculated from the area enclosed by the line connecting the front and rear installation points and the deformation surface.

8. A device for quickly selecting the impact-resistant structure of a front wall panel, characterized in that: include: A two-dimensional section line type extraction module is used to extract the two-dimensional section line type of the particle separator inner wall component as a modeling reference for selection. The particle separator inner wall component includes the front wall plate structure and related supporting structures. A module for establishing a solid finite element model of a small thickness section is used to establish a solid finite element model of a small thickness section based on the two-dimensional section line shape of the inner wall component of the particle separator; Single-layer bird / ice finite element model building module, used to build SPH or Lagrangian single-layer bird / ice finite element model; Finite element analysis model assembly module, used to assemble a small thickness section solid finite element model, SPH or Lagrangian single-layer bird / ice finite element model into a finite element analysis model of a bird / ice foreign object impact small thickness section model; 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; A recalculation module is used to replace the two-dimensional cross-sectional line model with different configurations or different materials, repeat the above process, and obtain the process and damage results of the front wall panel structure with different configurations or different 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 different materials under the impact of foreign objects, observe or calculate the damage area or the severity of the damage morphology to quickly screen the impact-resistant structure of the front wall panel.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for quickly selecting the impact-resistant structure of the front wall panel as described in any one of claims 1 to 7 are implemented.

10. A storage medium comprising a stored program, which controls the device where the storage medium is located to execute the steps of the method for quickly selecting the impact-resistant structure of the front wall panel as claimed in any one of claims 1 to 7 when the program is run.

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