Method, device and equipment for determining guide rail structure of electromagnetic rail gun and medium

Abstract

The invention provides a method, a device, equipment and a medium for determining a guide rail structure of an electromagnetic rail gun, in the method, a first improved model of the electromagnetic rail gun is established, the upper and lower inner side surfaces of a guide rail of the first improved model are elliptic curves, and the upper and lower ends of the guide rail are tangent to the elliptic curves; the elliptic curves on the upper and lower inner side surfaces are connected through a straight line connecting section; the design parameters of the first improved model are modified to obtain a plurality of second improved models, the design parameters of the second improved models are different, and the design parameters comprise the first half-axis length of an elliptic curve, the second half-axis length of the elliptic curve and the first length of a straight line connecting section; performing electromagnetic simulation based on the second improved model, and determining current distribution information of the second improved model; and determining target design parameters of the guide rail structure based on the current distribution information. The guide rail structure determined by the method can effectively solve the problem of current density concentration in the guide rail of the electromagnetic rail gun.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic railguns, and in particular to a method, device, and medium for determining a guide rail structure of an electromagnetic railgun. Background Art

[0002] An electromagnetic railgun (EMR) is a kinetic energy weapon that launches a projectile in a strong magnetic field generated by an energized armature, driven by electromagnetic forces. The extremely high initial velocity of the projectile is driven by the enormous instantaneous pulse current. This not only generates significant Joule heating, but also subjects the EMR launch system to a complex transient environment of electromagnetic, magnetic, thermal, and mechanical fields. This places stringent demands on the EMR's current-carrying capacity, material properties, and physical properties, posing significant challenges to its launch efficiency, accuracy, and service life.

[0003] The existing rail gun design suffers from current concentration points that are difficult to completely eliminate and localized excessive current density. These areas can easily become overheating hotspots, potentially causing material melting, burning, or arcing, impacting normal rail operation.

[0004] Currently, there is still a lack of an effective method to design the rail structure to solve the problem of current density concentration in the electromagnetic railgun rail. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a method, device, equipment and storage medium for determining the rail structure of an electromagnetic railgun, so that the designed rail structure can effectively solve the problem of current density concentration in the electromagnetic railgun rail.

[0006] In a first aspect, the present application provides a method for determining a guide rail structure of an electromagnetic railgun, including:

[0007] Establishing a first improved model of an electromagnetic railgun, wherein the upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, the upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment;

[0008] Modifying design parameters of the first improved model to obtain a plurality of second improved models, wherein the design parameters of the plurality of second improved models are different, and the design parameters include a first semi-axis length of the elliptic curve, a second semi-axis length of the elliptic curve, and a first length of the straight line connecting segment;

[0009] Performing electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model;

[0010] Based on the current distribution information, target design parameters of the guide rail structure are determined.

[0011] Optionally, the upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters also include: the chamfer radius of the chamfer shape.

[0012] Optionally, the method further includes:

[0013] performing a thermal simulation based on the second improved model to determine temperature distribution information of the second improved model;

[0014] Determining target design parameters of the guide rail structure based on the current distribution information further includes determining target design parameters of the guide rail structure based on the current distribution information and the temperature distribution information.

[0015] Optionally, the method further includes:

[0016] performing fatigue analysis based on the second improved model to determine fatigue analysis information of the second improved model;

[0017] Determining target design parameters of the guide rail structure based on the current distribution information further includes determining target design parameters of the guide rail structure based on the current distribution information and the fatigue analysis information.

[0018] Optionally, the modifying the design parameters of the first improved model to obtain a plurality of second improved models further includes:

[0019] The design parameters of the first improved model and the guide rail material of the first improved model are modified to obtain a plurality of second improved models, wherein the guide rail materials of the plurality of second improved models are different.

[0020] Optionally, the modifying the design parameters of the first improved model to obtain a plurality of second improved models further includes:

[0021] The design parameters of the first improved model and the guide rail surface coating of the first improved model are modified to obtain a plurality of second improved models, wherein the guide rail surface coatings of the plurality of second improved models are different.

[0022] In a second aspect, the present application provides a device for determining a rail structure of an electromagnetic railgun, comprising:

[0023] an establishing unit, configured to establish a first improved model of an electromagnetic railgun, wherein upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment;

[0024] a model modification unit, configured to modify design parameters of the first improved model to obtain a plurality of second improved models, wherein the design parameters of the plurality of second improved models are different, and the design parameters include a first semi-axis length of the elliptic curve, a second semi-axis length of the elliptic curve, and a first length of the straight line connecting segment;

[0025] a magnetic simulation unit, configured to perform electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model;

[0026] The determination unit is further configured to determine target design parameters of the guide rail structure based on the current distribution information.

[0027] Optionally, the upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters also include: the chamfer radius of the chamfer shape.

[0028] In a third aspect, the present application provides a device for determining the guide rail structure of an electromagnetic railgun, comprising:

[0029] Memory for storing computer programs;

[0030] A processor is used to execute the computer program stored in the memory to implement the steps of the method for determining the guide rail structure of the electromagnetic railgun as described in the first aspect.

[0031] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the steps of the method for determining the guide rail structure of an electromagnetic railgun as described in the first aspect.

[0032] It can be seen that the embodiment of the present application discloses a method, device, equipment and storage medium for determining the rail structure of an electromagnetic railgun, establishes a first improved model of the electromagnetic railgun, wherein the upper and lower inner surfaces of the rail of the first improved model are elliptical curves, the upper and lower ends of the rail are tangent to the elliptical curve, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment; the design parameters of the first improved model are modified to obtain multiple second improved models, and the design parameters of the multiple second improved models are different, and the design parameters include the first semi-axis length of the elliptical curve, the second semi-axis length of the elliptical curve, and the first length of the straight line connecting segment; electromagnetic simulation is performed based on the second improved model to determine the current distribution information of the second improved model; based on the current distribution information, the target design parameters of the rail structure are determined. The rail structure determined by the above method can effectively solve the problem of current density concentration in the electromagnetic railgun rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 This is a flow chart of a method for determining a guide rail structure of an electromagnetic railgun provided in an embodiment of the present application;

[0035] Figure 2 1 is a schematic cross-sectional structural diagram of a first improved model provided in an embodiment of the present application;

[0036] Figure 3 is a schematic cross-sectional structural diagram of another first improved model provided in an embodiment of the present application;

[0037] Figure 4 This is a current density distribution diagram of a guide rail under target design parameters provided in an embodiment of the present application;

[0038] Figure 5 This is a schematic diagram comparing the current peak values of a new structural guide rail and structural guide rails of other shapes under target design parameters provided by an embodiment of the present application;

[0039] Figure 6 This is a schematic diagram comparing the current density along the y-axis direction within a double guide rail of a new structural guide rail and a structural guide rail of other shapes under target design parameters provided by an embodiment of the present application;

[0040] Figure 7 It is a structural schematic diagram of a device for determining the guide rail structure of an electromagnetic rail gun provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application are within the scope of protection of this application.

[0042] To facilitate understanding of the technical solution provided by this application, the following will describe a method for determining the guide rail structure of an electromagnetic rail gun provided by this application in conjunction with the accompanying drawings. Figure 1 , this figure is a flow chart of a method for determining the guide rail structure of an electromagnetic rail gun provided in an embodiment of the present application, and the method includes S101-S104.

[0043] S101: Establish a first improved model of an electromagnetic railgun, wherein the upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, the upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment.

[0044] In the embodiment of the present application, the specific parameters of the first improved model of the electromagnetic railgun are not limited. Figure 2 As shown, Figure 2 This is a schematic diagram of the cross-sectional structure of a first improved model provided in an embodiment of the present application. Figure 2 The cross section of the left rail of the electromagnetic railgun in Figure 2 The right side of the dotted line in the model is considered the inner side of the guide rail. It is understandable that if the structure of the left guide rail of the electromagnetic railgun is the opposite of that of the right guide rail, the upper half of the inner side of the guide rail includes an elliptical curve, and the lower half also includes an elliptical curve. The elliptical curves of the upper and lower parts are connected by a straight line in the middle. The upper and lower endpoints of the guide rail, i.e., the highest point and the lowest point, are tangent to the guide rail. The upper and lower parts of the inner side of the guide rail are symmetrical. In addition, this application does not limit the specific shape of the outer side of the guide rail, which can be any shape, such as rectangular or elliptical. Figure 2 Where a, b, and c are design parameters that can be changed, where a represents the length of the first semi-axis of the elliptic curve, b represents the length of the second semi-axis of the elliptic curve, and c represents half of the first length of the straight line connecting segment.

[0045] S102: Modify the design parameters of the first improved model to obtain multiple second improved models, where the design parameters of the multiple second improved models are different, and the design parameters include the first semi-axis length of the elliptic curve, the second semi-axis length of the elliptic curve, and the first length of the straight line connecting segment.

[0046] In the embodiment of the present application, after obtaining the first improved model, different design parameters are set on the basis of the first improved model to modify the first improved model. Figure 2 The first semi-axis length a of the elliptic curve, the second semi-axis length b of the elliptic curve, and the first length 2c of the straight line connecting segment shown in FIG can be used to obtain multiple different second improved models. Different second improved models have different first semi-axis lengths of the elliptic curve and / or second semi-axis lengths of the elliptic curve and / or the first lengths of the straight line connecting segments.

[0047] S103: Perform electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model.

[0048] In the embodiment of the present application, the second improved model can be subjected to electromagnetic simulation using finite element analysis software, and by setting current input conditions and current paths, such as the current source position and intensity, etc., the flow of current through the guide rail can be simulated to generate current density distribution information.

[0049] S104: Determine target design parameters of the guide rail structure based on the current distribution information.

[0050] In an embodiment of the present application, the current distribution information of multiple second improved models can be combined, and through comparative analysis, it can be observed whether the current is concentrated at the end or contact area of the guide rail, and the design parameters that can achieve the best uniform current distribution can be determined as the target design parameters.

[0051] Through the above-mentioned method, this application adopts an improved model of an elliptical-top tangent structure and an elliptical-straight line composite structure for the guide rail design. This design effectively optimizes the uniform distribution of current and effectively reduces the occurrence of overheating. Furthermore, a straight connecting segment is used in the middle of the guide rail to enhance the stability and rigidity of the guide rail while avoiding the manufacturing difficulties associated with a purely curved surface design. This composite structure combines the advantages of elliptical curves and straight line segments, forming a guide rail design that effectively disperses current while also having high structural rigidity.

[0052] As a possible implementation, the upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters also include: the chamfer radius of the chamfer shape.

[0053] It is understandable that the upper and lower ends of the outer sides of the guide rail of the present application are chamfered. Figure 3 As shown, Figure 3 A schematic cross-sectional structure diagram of another first improved model provided in an embodiment of the present application, Figure 3 exist Figure 2On the basis of, it is also shown that the upper and lower end points of the outer side of the guide rail are chamfered, and the chamfer design can be a circular chamfer, and d represents the chamfer radius of the chamfer shape. It can be understood that, the present application can also flexibly set the chamfer radius of the first improved model to obtain multiple different second improved models, so that the chamfer radius between different second improved models is different. It can be understood that the endpoint design of the guide rail is very important, because the two ends of the guide rail are the starting point and end point of the current flow path, and are also the area where the armature contacts the guide rail. The optimization of the endpoint design can effectively improve the uniformity of the current density distribution and reduce the thermal damage and wear caused by current concentration or poor contact. By designing the chamfers on the endpoints, it is possible to better avoid the current from flowing concentratedly at the endpoints, and more effectively solve the problem of current density concentration in the electromagnetic railgun rail.

[0054] As a possible implementation, the present application provides a method for determining a rail structure of an electromagnetic railgun, further comprising the following steps: performing a thermal simulation based on the second improved model to determine temperature distribution information of the second improved model;

[0055] Then S104 determines the target design parameters of the guide rail structure based on the current distribution information, and further includes: determining the target design parameters of the guide rail structure based on the current distribution information and the temperature distribution information.

[0056] In an embodiment of the present application, thermal simulation of the second improved model can be performed using finite element analysis software. This application can implement thermal simulation by applying thermal boundary conditions. Specifically, the present application can set the thermophysical properties of the guide rail, including the thermal conductivity and specific heat capacity of the material, based on the current distribution. The heat generated by the current is input into the thermal simulation module to obtain temperature distribution information of the second improved model under different target design parameters.

[0057] The present application can combine temperature distribution information and current density distribution information to jointly determine the target design parameters of the guide rail structure. The temperature distribution information can include temperature peak distribution information. It can be understood that the lower the temperature peak, the more evenly the temperature peak distribution is, and the absence of overheated areas, the better the design parameters of the electromagnetic railgun corresponding to the temperature distribution information. As an example, the present application can determine the target design parameters that can more evenly disperse the heat generated by the guide rail, better reduce the temperature peak, and better improve the uniformity of the current density distribution based on a weighted algorithm, combined with temperature information and current density distribution information. This allows the designed electromagnetic railgun guide rail to ensure reliability under high-intensity launch conditions.

[0058] As a possible implementation, the present application provides a method for determining the guide rail structure of an electromagnetic railgun, further comprising the following steps: performing fatigue analysis based on the second improved model to determine fatigue analysis information of the second improved model.

[0059] The step of determining target design parameters of the guide rail structure based on the current distribution information in S104 further includes: determining target design parameters of the guide rail structure based on the current distribution information and the fatigue analysis information.

[0060] The present application can simulate multiple different second improved model guide rails for repeated launches to obtain deformation, cracks and fatigue damage of the guide rails under repeated launch conditions as fatigue analysis information.

[0061] This application can combine current distribution information and fatigue analysis information to determine the target design parameters of the guide rail structure. By combining current distribution information with fatigue analysis, the target design parameters determined can ensure the long-term stability of the guide rail while achieving uniform current density distribution.

[0062] As a possible implementation, in the present application, step S102 modifies the design parameters of the first improved model to obtain multiple second improved models, further comprising:

[0063] The design parameters of the first improved model and the guide rail material of the first improved model are modified to obtain a plurality of second improved models, wherein the guide rail materials of the plurality of second improved models are different.

[0064] In this application, the rail material of the first improved model will be modified to produce multiple second improved models with different rail materials. This will allow for the subsequent selection of rail materials that effectively address the current density concentration issue in the electromagnetic railgun rail. It is understood that the rail material can be selected from highly conductive materials, such as copper alloys and silver alloys. These materials are designed to reduce losses during current transmission and improve the rail's conductivity. The high conductivity of these materials helps reduce current impedance and improve the overall efficiency of the electromagnetic railgun.

[0065] As a possible implementation, in step S102 of the present application, the design parameters of the first improved model are modified to obtain multiple second improved models, and the following steps are further included:

[0066] The design parameters of the first improved model and the guide rail surface coating of the first improved model are modified to obtain multiple second improved models, and the guide rail surface coatings of the multiple second improved models are different.

[0067] In this application, the rail surface coating of the first improved model will be modified to produce multiple second improved models with different rail surface coatings. This allows for the subsequent selection of a rail surface coating that effectively addresses the current density concentration problem in the electromagnetic railgun rail. This application does not limit the specific choice of rail surface coating. As an example, the rail surface coating can be silver-plated, nickel-plated, ceramic-coated, etc. It is understood that the coating can effectively improve the heat resistance and wear resistance of the rail, reduce thermal damage and wear, and extend the service life of the rail.

[0068] The technical solution of the present application is further explained below in conjunction with specific experimental data. The guide rail design of the present application adopts an innovative composite structure with an inner side of an ellipse-top tangent structure, an ellipse-straight line, and an outer end point designed as a chamfered shape. After finite element analysis and calculation, the present application obtained the target design parameters of the guide rail structure based on the cross-sectional width of the guide rail in the first improved model being 20mm and the height being 40mm: the first semi-axis length a=12mm of the elliptical curve, the second semi-axis length b=18mm of the elliptical curve, the first length 2c=4mm of the straight connecting segment, and the chamfer radius d of the chamfered shape being 4mm. As Figure 4 As shown, Figure 4 A current density distribution diagram of a guide rail under target design parameters provided in an embodiment of the present application.

[0069] In addition, this application will also compare the performance of the designed new guide rail structure with the classic flat guide rail and the convex guide rail, such as Figure 5 , Figure 5 A comparison chart of current peak values for a new rail structure under target design parameters, provided in an embodiment of the present application, is provided. Other shapes may include flat, elliptical, trapezoidal, and rectangular rail structures. The new structure is a rail structure whose parameters, determined by the present invention, are the target design parameters. Figure 5 The new structure achieves the lowest peak current density, Jmax. Compared to a planar guide rail, the peak current density is reduced by 58.5%; compared to the optimized elliptical convex and trapezoidal structures, it is reduced by 29.7% and 29.8%, respectively. This significant performance improvement makes the new structure suitable for more demanding operating conditions, enhancing its practicality.

[0070] like Figure 6 As shown, Figure 6 A schematic diagram comparing the current density along the y-axis direction within a double guide rail of a new structural guide rail and a structural guide rail of other shapes under target design parameters provided in an embodiment of the present application. Figure 6The new structure shows that the current density distribution along the y-axis remains stable with minimal fluctuations, effectively reducing extreme variations and discontinuities. This demonstrates that the new structure offers superior stability and reliability. Furthermore, the new structure exhibits no significant spikes at the top and bottom of the rails, while also reducing extreme values, demonstrating its excellent performance in controlling current density limits, thereby improving safety and the overall efficiency of the launch system.

[0071] In summary, the results demonstrate that the rail design of the present invention exhibits superiority in terms of current density distribution, thermal management, structural stability, and fatigue life. Especially under high-frequency, high-intensity transmission conditions, the rail of the present invention effectively reduces peak current density, improves thermal dissipation, and ensures long-term stable operation of the system.

[0072] See also Figure 7 , Figure 7 This is a schematic structural diagram of a device for determining the guide rail structure of an electromagnetic railgun provided in an embodiment of the present application. The device includes an establishment unit 201, a model modification unit 702, an electromagnetic simulation unit 703 and a determination unit 704.

[0073] Establishing unit 701, configured to establish a first improved model of an electromagnetic railgun, wherein the upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, the upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment;

[0074] a model modification unit 702 configured to modify design parameters of the first improved model to obtain a plurality of second improved models, wherein the plurality of second improved models have different design parameters, the design parameters including a first semi-axis length of the elliptic curve, a second semi-axis length of the elliptic curve, and a first length of the straight line connecting segment;

[0075] an electromagnetic simulation unit 703, configured to perform electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model;

[0076] The determining unit 704 is configured to determine target design parameters of the guide rail structure based on the current distribution information.

[0077] As a possible implementation, the upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters further include: a chamfer radius of the chamfered shape.

[0078] As a possible implementation, the apparatus further includes: a thermal simulation unit, configured to perform thermal simulation based on the second improved model to determine temperature distribution information of the second improved model;

[0079] The determining unit 704 is further configured to determine target design parameters of the guide rail structure based on the current distribution information and the temperature distribution information.

[0080] As a possible implementation, the device further includes: a fatigue analysis unit configured to perform fatigue analysis based on the second improved model and determine fatigue analysis information of the second improved model.

[0081] The determining unit 704 is further configured to determine target design parameters of the guide rail structure based on the current distribution information and the fatigue analysis information.

[0082] As a possible implementation, the model modification unit 702 is further configured to modify the design parameters of the first improved model and the guide rail material of the first improved model to obtain multiple second improved models, wherein the guide rail materials of the multiple second improved models are different.

[0083] As a possible implementation method, the model modification unit 702 is also used to modify the design parameters of the first improved model and the guide rail surface coating of the first improved model to obtain multiple second improved models, and the guide rail surface coatings among the multiple second improved models are different.

[0084] It should be noted that the guide rail structure determination device of an electromagnetic rail gun provided in the embodiment of the present application has the technical effects of any of the above embodiments, and the embodiments of the present application are not described in detail here.

[0085] The present application also provides a device for determining the guide rail structure of an electromagnetic railgun, which may include a memory and a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for determining the guide rail structure of an electromagnetic railgun as described in the above embodiment is implemented.

[0086] It should be noted that the rail structure determination device for an electromagnetic railgun provided in an embodiment of the present application has the technical effects of any of the above embodiments, and the embodiments of the present application are not described in detail here.

[0087] The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed, can implement the steps provided in the above embodiments. The storage medium may include: a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code.

[0088] It should be noted that the computer-readable storage medium provided in the embodiment of the present application has the technical effects of any of the above embodiments, and the embodiments of the present application are not described in detail here.

[0089] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0090] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0091] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A method for determining the guide rail structure of an electromagnetic rail gun, characterized in that ,,include: Establishing a first improved model of an electromagnetic railgun, wherein the upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, the upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment; Modifying design parameters of the first improved model to obtain a plurality of second improved models, wherein the design parameters of the plurality of second improved models are different, and the design parameters include a first semi-axis length of the elliptic curve, a second semi-axis length of the elliptic curve, and a first length of the straight line connecting segment; Performing electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model; Based on the current distribution information, target design parameters of the guide rail structure are determined.

2. The method according to claim 1, characterized in that The upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters also include: the chamfer radius of the chamfered shape.

3. The method according to claim 1, characterized in that The method further comprises: performing a thermal simulation based on the second improved model to determine temperature distribution information of the second improved model; Determining target design parameters of the guide rail structure based on the current distribution information further includes determining target design parameters of the guide rail structure based on the current distribution information and the temperature distribution information.

4. The method according to claim 1, wherein The method further comprises: performing fatigue analysis based on the second improved model to determine fatigue analysis information of the second improved model; Determining target design parameters of the guide rail structure based on the current distribution information further includes determining target design parameters of the guide rail structure based on the current distribution information and the fatigue analysis information.

5. The method according to any one of claims 1 to 4, characterized in that The step of modifying the design parameters of the first improved model to obtain a plurality of second improved models further includes: The design parameters of the first improved model and the guide rail material of the first improved model are modified to obtain a plurality of second improved models, wherein the guide rail materials of the plurality of second improved models are different.

6. The method according to any one of claims 1 to 4, characterized in that The step of modifying the design parameters of the first improved model to obtain a plurality of second improved models further includes: The design parameters of the first improved model and the guide rail surface coating of the first improved model are modified to obtain a plurality of second improved models, wherein the guide rail surface coatings of the plurality of second improved models are different.

7. A device for determining the guide rail structure of an electromagnetic rail gun, characterized in that: The device comprises: an establishing unit, configured to establish a first improved model of an electromagnetic railgun, wherein upper and lower inner surfaces of a guide rail of the first improved model are elliptical curves, upper and lower ends of the guide rail are tangent to the elliptical curves, and the elliptical curves of the upper and lower inner surfaces are connected by a straight line connecting segment; a model modification unit, configured to modify design parameters of the first improved model to obtain a plurality of second improved models, wherein the design parameters of the plurality of second improved models are different, and the design parameters include a first semi-axis length of the elliptic curve, a second semi-axis length of the elliptic curve, and a first length of the straight line connecting segment; an electromagnetic simulation unit, configured to perform electromagnetic simulation based on the second improved model to determine current distribution information of the second improved model; The determination unit is further configured to determine target design parameters of the guide rail structure based on the current distribution information.

8. The device according to claim 7, characterized in that The upper and lower outer side endpoints of the guide rail of the first improved model are chamfered, and the design parameters also include: the chamfer radius of the chamfered shape.

9. A device for determining the guide rail structure of an electromagnetic rail gun, characterized in that ,,include: Memory for storing computer programs; A processor, configured to execute the computer program stored in the memory to implement the steps of the method for determining the guide rail structure of an electromagnetic railgun according to any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer program is executed by a processor to implement the steps of the method for determining the guide rail structure of an electromagnetic rail gun according to any one of claims 1 to 6.

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