Finite element method for sliding door analysis, apparatus, electronic equipment, media and products

Abstract

This invention relates to the field of finite element simulation technology, and particularly to a finite element sliding door analysis method, device, electronic device, medium, and product. The method includes: acquiring the geometric information of the sliding door's associated structure, and performing mesh discretization modeling on the geometric information of the associated structure to obtain a simulation sub-model of the sliding door's associated structure; constructing a door-opening drive mechanics simulation model based on the simulation sub-model of the sliding door's associated structure and preset constraint relationships; applying gravity field loads and driving force loads to the door-opening drive mechanics simulation model, and acquiring the displacement motion response results and synergy comparison results of the door-opening drive mechanics simulation model under gravity field loads and driving force loads; and obtaining the finite element analysis results of the sliding door based on the displacement motion response results and synergy comparison results. This solves the problems of low model computation efficiency and easy distortion of simulation results in related technologies, and improves the accuracy and reliability of finite element sliding door simulation.

Description

Technical Field

[0001] This invention relates to the field of finite element simulation technology, and in particular to a finite element method, apparatus, electronic device, medium and product for analyzing sliding doors. Background Technology

[0002] Sliding doors primarily rely on upper, middle, and lower hinges sliding along corresponding upper, middle, and lower tracks to complete the opening process. Fixed hinges mainly consist of guide rollers, connecting brackets, screws, and hinge supports. Rotary hinges mainly consist of hinge supports, upper bearing brackets, front guide wheels, rear guide wheels, and load-bearing wheels. During movement, the guide wheels and load-bearing wheels work together to control the direction and speed of the sliding door along the corresponding tracks.

[0003] In related technologies, the main approach is based on a three-dimensional geometric model of the sliding door and hinges. First, material properties are assigned to the corresponding components. Then, according to the actual movement state and assembly relationship of the sliding door, a fixed joint is established between the hinge and the door, a revolute joint is established between the upper, middle, and lower rollers and the hinges, and a solid contact is established between the slide rail and the rollers. An angular function relationship is established between the load-bearing rollers, guide rollers, and hinges to adjust the parallelism of the lower hinges, thereby ensuring the parallelism between the load-bearing rollers and the slide rails. Combined with multibody dynamics simulation technology, rigid-flexible coupling dynamics simulation is performed to construct a virtual prototype finite element analysis model to simulate the mechanical behavior of the sliding door during opening. However, in related technologies, on the one hand, the modeling is not reasonably geometrically simplified, the model structure is redundant, and the mesh generation and simulation calculation are time-consuming and inefficient; on the other hand, relying solely on static angle functions to adjust the hinge parallelism cannot adapt to the dynamic opening conditions of sliding doors, and cannot truly restore the dynamic cooperation relationship between rollers and slide rails and various hinge components, resulting in a large deviation between simulation results and actual operating conditions, which urgently needs to be addressed. Summary of the Invention

[0004] This invention provides a finite element method, apparatus, electronic device, medium, and product for analyzing sliding doors, in order to solve the problems of low model calculation efficiency and easy distortion of simulation results in related technologies, and improve the simulation accuracy and reliability of finite element sliding doors.

[0005] To achieve the above objectives, a first aspect of the present invention provides a finite element method for analyzing sliding doors, comprising the following steps: acquiring geometric information of the associated structure of the sliding door, and performing mesh discretization modeling on the geometric information of the associated structure to obtain a simulation sub-model of the associated structure; constructing a door-opening driving mechanics simulation model based on the simulation sub-model of the associated structure and preset constraint relationships; applying a gravity field load and a driving force load to the door-opening driving mechanics simulation model, and acquiring the displacement motion response results and synergy comparison results of the door-opening driving mechanics simulation model under the gravity field load and the driving force load; and obtaining the finite element analysis results of the sliding door based on the displacement motion response results and the synergy comparison results.

[0006] Furthermore, in some embodiments, the step of performing mesh discretization modeling on the geometric information of the sliding door associated structure to obtain a simulation sub-model of the sliding door associated structure includes: preprocessing the geometric information of the sliding door associated structure to obtain a simplified sliding door associated structure model; meshing the simplified sliding door associated structure model according to a preset structure type; meshing the mid-surface of the hinge support component with shell elements; and generating a simulation sub-model of the sliding door associated structure based on the thickness information and material property information of the mesh model.

[0007] Furthermore, in some embodiments, the construction of the door opening drive mechanics simulation model based on the simulation sub-model of the sliding door associated structure and the preset constraint relationship includes: constraining the simulation sub-model based on the motion constraints, assembly constraints and contact constraints between the sliding door associated structures to obtain the constrained simulation sub-model; and constructing a drive transmission unit based on the constrained simulation sub-model to obtain the door opening drive mechanics simulation model.

[0008] Furthermore, in some embodiments, applying a gravitational field load and a driving force load to the door opening drive mechanical simulation model, and obtaining the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under the gravitational field load and the driving force load, includes: applying a gravitational field load to the door opening drive mechanical simulation model to achieve a static equilibrium state; applying a driving force load to the door opening drive mechanical simulation model in the static equilibrium state; obtaining displacement motion response information based on the simulation results after loading; obtaining the motion characteristics of the displacement motion response information; and performing a comparative analysis of the motion consistency of each sliding door associated structure based on the motion characteristics to obtain a synergy comparison result.

[0009] Furthermore, in some embodiments, obtaining the finite element analysis result of the sliding door based on the displacement motion response result and the synergy comparison result includes: obtaining the displacement motion response result based on the displacement motion response information; and determining the finite element analysis result of the sliding door based on the displacement motion response result and the synergy comparison result.

[0010] The finite element sliding door analysis method provided by the present invention constructs a corresponding simulation sub-model by performing mesh discretization modeling on the geometric model of the associated structure of the sliding door; it builds a door opening drive mechanical simulation model by combining preset constraint relationships, and conducts dynamic simulation by applying a gravity field and driving force load; by extracting and comparing the displacement motion response and component coordination state during the opening process of the sliding door, the finite element analysis of the opening dynamic characteristics of the sliding door is completed, which solves the problems of low model calculation efficiency and easy distortion of simulation results in related technologies, and improves the accuracy and reliability of finite element sliding door simulation.

[0011] To achieve the above objectives, a second aspect of the present invention provides a finite element sliding door analysis device, comprising: an acquisition module for acquiring geometric information of the sliding door associated structure and performing mesh discretization modeling on the geometric information of the sliding door associated structure to obtain a simulation sub-model of the sliding door associated structure; a construction module for constructing a door opening drive mechanics simulation model based on the simulation sub-model of the sliding door associated structure and preset constraint relationships; and a generation module for applying a gravity field load and a driving force load to the door opening drive mechanics simulation model, acquiring the displacement motion response results and synergy comparison results of the door opening drive mechanics simulation model under the gravity field load and the driving force load, and obtaining the sliding door finite element analysis results based on the displacement motion response results and the synergy comparison results.

[0012] Furthermore, in some embodiments, the acquisition module is specifically used for: preprocessing the geometric information of the sliding door associated structure to obtain a simplified sliding door associated structure model; dividing the simplified sliding door associated structure model into a mesh according to a preset structure type; dividing the hinge bracket component mid-surface into a shell element mesh; and generating a simulation sub-model of the sliding door associated structure based on the thickness information and material property information of the divided mesh model.

[0013] Furthermore, in some embodiments, the construction module is specifically used to: constrain the simulation sub-model based on the motion constraints, assembly constraints, and contact constraints between the sliding door associated structures to obtain a constrained simulation sub-model; and construct a drive transmission unit based on the constrained simulation sub-model to obtain the door opening drive mechanical simulation model.

[0014] Furthermore, in some embodiments, the generation module is specifically used for: applying a gravitational field load to the door opening drive mechanical simulation model to make the door opening drive mechanical simulation model reach a static equilibrium state; applying a driving force load to the door opening drive mechanical simulation model in the static equilibrium state; obtaining displacement motion response information based on the simulation results after loading; acquiring the motion characteristics of the displacement motion response information; and comparing and analyzing the motion consistency of each sliding door associated structure according to the motion characteristics to obtain a collaborative comparison result.

[0015] Furthermore, in some embodiments, the generation module is also used to: obtain displacement motion response results based on the displacement motion response information; and determine the finite element analysis results of the sliding door based on the displacement motion response results and the synergy comparison results.

[0016] The finite element sliding door analysis device provided in this embodiment of the invention constructs a corresponding simulation sub-model by performing mesh discretization modeling on the geometric model of the associated structure of the sliding door; it builds a door opening drive mechanical simulation model by combining preset constraint relationships, and conducts dynamic simulation by applying a gravity field and driving force load; by extracting and comparing the displacement motion response and component coordination state during the opening process of the sliding door, it completes the finite element analysis of the opening dynamic characteristics of the sliding door, solving the problems of low model calculation efficiency and easy distortion of simulation results in related technologies, and improving the accuracy and reliability of finite element sliding door simulation.

[0017] To achieve the above objectives, a third aspect of the present invention provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the finite element sliding door analysis method as described in the above embodiments.

[0018] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the finite element sliding door analysis method as described in the above embodiments.

[0019] A fifth aspect of the present invention provides a computer program product, including a computer program that is executed to implement the finite element sliding door analysis method as described in the above embodiments.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A flowchart of the finite element sliding door analysis method provided in an embodiment of the present invention; Figure 2 A schematic diagram of a local mesh model of a roller and a slide rail according to a specific embodiment of the present invention; Figure 3 A schematic diagram of a hinge roller assembly according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly of a hinge and a roller according to a specific embodiment of the present invention; Figure 5 A schematic diagram of the constraint relationship of a sliding door hinge roller mechanism according to a specific embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the assembly constraints between a sliding door hinge bracket and a vehicle body according to a specific embodiment of the present invention. Figure 7 A schematic diagram illustrating the configuration of a sliding door track drive transmission unit according to a specific embodiment of the present invention; Figure 8 A schematic diagram of the displacement curves of the lower load-bearing wheel core and the outer panel of the sliding door in the Z direction, without considering assembly relationships and the influence of gravity, according to a specific embodiment of the present invention; Figure 9 A schematic diagram of the displacement curves of the lower load-bearing wheel core and the outer panel of the sliding door in the Z direction, considering assembly relationship and the influence of gravity, according to a specific embodiment of the present invention; Figure 10 This is a block diagram of a finite element sliding door analysis device provided according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The following describes the finite element sliding door analysis method, apparatus, electronic equipment, medium, and product according to embodiments of the present invention with reference to the accompanying drawings. First, the finite element sliding door analysis method according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] Figure 1This is a flowchart of a finite element sliding door analysis method provided according to an embodiment of the present invention.

[0025] like Figure 1 As shown, the finite element method for analyzing sliding doors includes the following steps: In step S101, the geometric information of the sliding door associated structure is obtained, and the geometric information of the sliding door associated structure is discretized into a mesh to obtain a simulation sub-model of the sliding door associated structure.

[0026] Among them, the geometric information of the sliding door's associated structure refers to the three-dimensional geometric data of all components that constitute the sliding door's motion system, including the three-dimensional model information such as the external dimensions, spatial position, assembly outline, and structural features of components such as the upper, middle, and lower hinges, guide rollers, load-bearing rollers, connecting brackets, and slide rails.

[0027] Furthermore, in some embodiments, the geometric information of the sliding door associated structure is discretized and modeled using a mesh to obtain a simulation sub-model of the sliding door associated structure. This includes: preprocessing the geometric information of the sliding door associated structure to obtain a simplified sliding door associated structure model; dividing the simplified sliding door associated structure model into meshes according to a preset structure type; dividing the mid-surface of the hinge support component into shell element meshes; and generating a simulation sub-model of the sliding door associated structure based on the thickness information and material property information of the divided mesh model.

[0028] Among them, the preset structure type refers to the classification of solid moving components (such as rollers, slide rails, etc.) and plate components (such as hinge brackets) according to the mechanical properties of the component structure. Mesh generation refers to discretizing the continuous geometric model into finite element calculation units. Center surface extraction refers to extracting the center surface of the structural thickness for the hinge bracket and replacing solid modeling with surface units. Shell unit refers to the high-precision unit of thin-walled parts, which greatly reduces the number of meshes while ensuring the mechanical accuracy of bending and tension.

[0029] Specifically, the original geometric models of the sliding door components are first cleaned and simplified, removing small and redundant structures to obtain a simplified model, reducing the burden of subsequent modeling and calculation. Then, based on the structural characteristics of the components, a corresponding mesh scheme is adopted. For thin-walled components such as hinge brackets, the structural center plane is extracted, and shell elements are used to complete the mesh generation. Thickness parameters and material mechanics parameters are added to the mesh model, and finally, a simulation sub-model of the sliding door's associated structure that can be used for subsequent simulation calculations is generated.

[0030] For example, first, import the CAD models of the upper, middle, and lower hinges and corresponding pulley groups. Simplify accessories such as screws, bearings, and springs. Draw the upper pulley, middle front and rear guide wheels, middle load-bearing wheel, lower front and rear guide wheels, and lower load-bearing wheel as hexahedral meshes. For the upper hinge door bracket, upper hinge bearing bracket, middle hinge door bracket, middle hinge bearing bracket, middle hinge wiring harness bracket, lower hinge door bracket, lower hinge connecting plate, and lower hinge bearing bracket, extract the mid-surface and draw shell element meshes. Assign corresponding thicknesses and material properties to each component. During the assignment of thicknesses and material properties, ensure that the mounting holes of the brackets connected to the pulleys have at least one layer of washer mesh. Finally, create a shell element mesh on the center surface of the pulley, middle front and rear guide wheels, middle load-bearing wheel, lower front and rear guide wheels, and lower load-bearing wheel. Figure 2 This is a schematic diagram of a local mesh model of a roller and a slide rail according to a specific embodiment of the present invention. Figure 3 This is a schematic diagram of a hinge roller assembly according to a specific embodiment of the present invention. Figure 4 This is a schematic diagram of the assembly of a hinge and a roller according to a specific embodiment of the present invention.

[0031] In step S102, a door opening drive mechanical simulation model is constructed based on the simulation sub-model of the sliding door's associated structure and the preset constraint relationship.

[0032] Among them, the preset constraint relationship refers to the various connection and motion rules that are pre-set according to the actual assembly and motion logic of the sliding door, including motion constraints, assembly constraints and contact constraints. The door opening drive mechanics simulation model refers to a complete system model assembled from the scattered simulation sub-models through constraint relationships.

[0033] Furthermore, in some embodiments, a door opening drive mechanics simulation model is constructed based on the simulation sub-model of the sliding door's associated structure and preset constraint relationships, including: constraining the simulation sub-model based on the motion constraints, assembly constraints, and contact constraints between the sliding door's associated structures to obtain the constrained simulation sub-model; and constructing a drive transmission unit based on the constrained simulation sub-model to obtain the door opening drive mechanics simulation model.

[0034] As one possible approach, 1D-revolute elements are used to simulate the rotational connection of the bearings. Rotational pairs are established between the upper pulley and the upper hinge bearing bracket, the middle front and rear guide wheels and the middle hinge bearing bracket, the middle load-bearing wheel and the middle hinge wiring harness bracket, and the lower front and rear guide wheels and the lower hinge bearing bracket. Among them, the upper hinge door bracket, the middle hinge door bracket, the lower hinge door bracket and the sliding door are connected to the sliding door using Rbe2 elements to simulate bolt connections. SurfaceToSurface contact is established between the inner walls of the upper and middle sliding tracks and the upper and middle sliding wheels, with a friction coefficient of 0.1. The sliding door is opened by winding a steel wire rope with a retractor, which pulls the middle hinge bearing bracket to drive the middle pulley group to slide, and then slides along the middle track to realize the door opening process. Using beam elements and MAT71 material to simulate a steel wire rope, a tension force along the rope direction is applied to the rope end as the driving force. Finally, the upper, middle, and lower pulley assemblies are assembled with the upper, middle, and lower slide rails. The pulley positions are adjusted according to CAD model data to ensure that under the action of gravity, the middle and lower load-bearing pulleys can simultaneously contact the slide rails. For example... Figure 5 This is a schematic diagram illustrating the constraint relationship of a sliding door hinge roller mechanism according to a specific embodiment of the present invention. Figure 6 This is a schematic diagram illustrating the assembly constraints between a sliding door hinge bracket and a vehicle body according to a specific embodiment of the present invention. Figure 7 This is a schematic diagram illustrating the configuration of a sliding door track drive transmission unit according to a specific embodiment of the present invention.

[0035] In step S103, a gravity field load and a driving force load are applied to the door opening drive mechanical simulation model, and the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under the gravity field load and the driving force load are obtained. Based on the displacement motion response results and synergy comparison results, the finite element analysis results of the sliding door are obtained.

[0036] In some embodiments, a gravitational field load and a driving force load are applied to the door opening drive mechanical simulation model, and the displacement motion response results and coordination comparison results of the door opening drive mechanical simulation model under the gravitational field load and the driving force load are obtained. This includes: applying a gravitational field load to the door opening drive mechanical simulation model to make the door opening drive mechanical simulation model reach a static equilibrium state; applying a driving force load to the door opening drive mechanical simulation model in the static equilibrium state; obtaining displacement motion response information based on the simulation results after loading; obtaining the motion characteristics of the displacement motion response information; and comparing and analyzing the motion consistency of each sliding door associated structure according to the motion characteristics to obtain the coordination comparison results.

[0037] Specifically, the gravity load in this embodiment of the invention is applied slowly, for example, in the form of a linear curve, gradually loading to the load level corresponding to the standard gravitational acceleration within a set time step. This avoids additional impact loads caused by instantaneous application of gravity, which could lead to abnormal local stress in the model, unstable contact state, or divergence in the numerical solution. After the gravity load is applied, a static balance holding phase of a certain duration is required to allow the elastic components in the model (such as slide rails, hinge supports, roller bushings, etc.) to undergo sufficient elastic deformation under their own weight and tend to stabilize. This is done after the deflection deformation and contact state of the middle and lower slides caused by their own weight have recovered to a stable state. After the model reaches a stable static equilibrium state, the driving force loading stage begins. Once the model achieves this state, a driving force load is applied. Under the combined action of gravity and the driving force, the various sliding door-related structures (including upper / middle / lower rollers, guide wheels, load-bearing wheels, hinge supports, etc.) will experience displacement, contact force, and motion posture changes over time. After the simulation calculation is completed, the displacement motion response information of each key component is extracted based on the post-loading simulation results. Motion characteristics are extracted from this information, including parameters such as the start time of motion, velocity, displacement amplitude, period, phase relationship, and contact point trajectory for each component. Based on these motion characteristics, the motion consistency of each sliding door-related structure is compared and analyzed, ultimately yielding a comparison result of the collaborative operation of the sliding door opening process.

[0038] For example, embodiments of the present invention set gravity analysis step loading curves and driving force loading curves respectively, with the time interval between the two considering the elastic deformation and springback process. Table 1 is a schematic table of gravity loading curves provided according to a specific embodiment of the present invention, and Table 2 is a table of driving force loading curves provided according to a specific embodiment of the present invention. Table 1

[0039] Table 2

[0040] The related structures of each sliding door are processed based on the gravity loading curve and driving force loading curve in the table. Figure 8 This is a schematic diagram of the displacement curves of the lower load-bearing wheel core and the outer panel of the sliding door in the Z direction, provided by a specific embodiment of the present invention, without considering assembly relationships and the influence of gravity. Figure 9 This is a schematic diagram of the displacement curves of the lower load-bearing wheel core and the outer panel of the sliding door in the Z direction, considering assembly relationships and the influence of gravity, according to a specific embodiment of the present invention, in conjunction with Tables 1 and 2. Figure 8 and Figure 9Table 1 shows a gravity loading scheme using a linear ramp loading to standard gravity from 0 to 60 ms, followed by a constant loading after 60 ms. Table 2 shows a driving force scheme using a stepped loading from 0 to 450 ms, followed by a constant loading after 450 ms. During the 0 to 100 ms gravity loading stage, both core components exhibited initial displacement fluctuations synchronized with the gravity loading, without any instantaneous displacement abrupt changes. After 100 ms, the structure's self-weight deformation gradually stabilized, successfully entering a static equilibrium state. During the 100 ms to 450 ms driven force stepped loading stage, the displacement change trends of the two components were highly synchronized with the driving force loading levels. Each increase in driving force corresponded to a displacement change inflection point, and there was no significant phase difference in the timing of their movements. After 450 ms, during the constant driving force loading stage, the displacements of both components gradually stabilized without violent fluctuations, and the structural motion state became completely stable.

[0041] Furthermore, in some embodiments, the finite element analysis results of the sliding door are obtained based on the displacement motion response results and the coordination comparison results, including: obtaining the displacement motion response results based on the displacement motion response information; and determining the finite element analysis results of the sliding door based on the displacement motion response results and the coordination comparison results.

[0042] Specifically, firstly, displacement motion response information of each sliding door component is extracted and organized to obtain displacement motion response results that reflect the displacement changes, motion trajectories, velocity and acceleration changes of each component during the opening process. Then, combined with the coordination comparison results obtained by comparing the motion consistency of each component, the motion characteristics, mechanical response and motion matching state between components during the opening process of the sliding door are comprehensively evaluated to determine the finite element analysis results of the sliding door, including motion stability, structural deformation, stress state and motion coordination.

[0043] The finite element sliding door analysis method provided by the present invention constructs a corresponding simulation sub-model by performing mesh discretization modeling on the geometric model of the associated structure of the sliding door; it builds a door opening drive mechanical simulation model by combining preset constraint relationships, and conducts dynamic simulation by applying a gravity field and driving force load; by extracting and comparing the displacement motion response and component coordination state during the opening process of the sliding door, the finite element analysis of the opening dynamic characteristics of the sliding door is completed, which solves the problems of low model calculation efficiency and easy distortion of simulation results in related technologies, and improves the accuracy and reliability of finite element sliding door simulation.

[0044] Next, the finite element sliding door analysis device provided according to an embodiment of the present invention is described with reference to the accompanying drawings.

[0045] Figure 10 This is a block diagram of a finite element sliding door analysis device provided according to an embodiment of the present invention.

[0046] like Figure 10 As shown, the finite element sliding door analysis device 10 includes: an acquisition module 100, a construction module 200, and a generation module 300.

[0047] The acquisition module 100 is used to acquire the geometric information of the sliding door associated structure and perform mesh discretization modeling on the geometric information of the sliding door associated structure to obtain the simulation sub-model of the sliding door associated structure; the construction module 200 is used to construct the door opening drive mechanical simulation model based on the simulation sub-model of the sliding door associated structure and the preset constraint relationship; the generation module 300 is used to apply gravity field load and driving force load to the door opening drive mechanical simulation model, and acquire the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under gravity field load and driving force load, and obtain the finite element analysis results of the sliding door based on the displacement motion response results and synergy comparison results.

[0048] Furthermore, in some embodiments, the acquisition module 100 is specifically used for: preprocessing the geometric information of the sliding door associated structure to obtain a simplified sliding door associated structure model; dividing the simplified sliding door associated structure model into meshes according to a preset structure type; dividing the hinge bracket component mid-surface into shell element meshes; and generating a simulation sub-model of the sliding door associated structure based on the thickness information and material property information of the divided mesh model.

[0049] Furthermore, in some embodiments, the construction module 200 is specifically used for: constraining the simulation sub-model based on the motion constraints, assembly constraints, and contact constraints between the sliding door's associated structures to obtain the constrained simulation sub-model; and constructing a drive transmission unit based on the constrained simulation sub-model to obtain the door opening drive mechanical simulation model.

[0050] Furthermore, in some embodiments, the generation module 300 is specifically used for: applying a gravitational field load to the door opening drive mechanical simulation model to make the door opening drive mechanical simulation model reach a static equilibrium state; applying a driving force load to the door opening drive mechanical simulation model in static equilibrium state; obtaining displacement motion response information based on the simulation results after loading; acquiring the motion characteristics of the displacement motion response information; and comparing and analyzing the motion consistency of each sliding door associated structure according to the motion characteristics to obtain the collaborative comparison results.

[0051] Furthermore, in some embodiments, the generation module 300 is also used to: obtain the displacement motion response result based on the displacement motion response information; and determine the finite element analysis result of the sliding door based on the displacement motion response result and the coordination comparison result.

[0052] It should be noted that the foregoing explanation of the finite element sliding door analysis method embodiment also applies to the finite element sliding door analysis device of this embodiment, and will not be repeated here.

[0053] The finite element sliding door analysis device provided in this embodiment of the invention constructs a corresponding simulation sub-model by performing mesh discretization modeling on the geometric model of the associated structure of the sliding door; it builds a door opening drive mechanical simulation model by combining preset constraint relationships, and conducts dynamic simulation by applying a gravity field and driving force load; by extracting and comparing the displacement motion response and component coordination state during the opening process of the sliding door, it completes the finite element analysis of the opening dynamic characteristics of the sliding door, solving the problems of low model calculation efficiency and easy distortion of simulation results in related technologies, and improving the accuracy and reliability of finite element sliding door simulation.

[0054] Figure 11 This is a schematic diagram of an electronic device provided according to an embodiment of the present invention. The electronic device may include: The memory 1101, the processor 1102, and the computer program stored on the memory 1101 and executable on the processor 1102.

[0055] When the processor 1102 executes the program, it implements the finite element sliding door analysis method provided in the above embodiments.

[0056] Furthermore, electronic devices also include: Communication interface 1103 is used for communication between memory 1101 and processor 1102.

[0057] The memory 1101 is used to store computer programs that can run on the processor 1102.

[0058] The memory 1101 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0059] If the memory 1101, processor 1102, and communication interface 1103 are implemented independently, then the communication interface 1103, memory 1101, and processor 1102 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 11 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0060] Optionally, in a specific implementation, if the memory 1101, processor 1102, and communication interface 1103 are integrated on a single chip, then the memory 1101, processor 1102, and communication interface 1103 can communicate with each other through an internal interface.

[0061] The processor 1102 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention.

[0062] In addition, embodiments of the present invention also provide a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described finite element sliding door analysis method.

[0063] In addition, embodiments of the present invention also provide a computer program product, including a computer program that is executed to implement the finite element sliding door analysis method described above.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A finite element method for analyzing sliding doors, characterized in that, Includes the following steps: Obtain the geometric information of the sliding door associated structure, and perform mesh discretization modeling on the geometric information of the sliding door associated structure to obtain the simulation sub-model of the sliding door associated structure; Based on the simulation sub-model of the sliding door's associated structure and the preset constraint relationships, a door opening drive mechanical simulation model is constructed. Gravity field load and driving force load are applied to the door opening drive mechanical simulation model, and the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under the gravity field load and the driving force load are obtained. Based on the displacement motion response results and the synergy comparison results, the finite element analysis results of the sliding door are obtained.

2. The method according to claim 1, characterized in that, The step of performing mesh discretization modeling on the geometric information of the sliding door association structure to obtain a simulation sub-model of the sliding door association structure includes: The geometric information of the sliding door association structure is preprocessed to obtain a simplified sliding door association structure model; The simplified sliding door associated structure model is meshed according to the preset structure type. The mid-surface of the hinge support component is meshed with shell elements. Based on the thickness and material properties of the mesh model, a simulation sub-model of the sliding door associated structure is generated.

3. The method according to claim 1, characterized in that, The simulation sub-model based on the sliding door's associated structure and the preset constraint relationships constructs a door opening drive mechanics simulation model, including: Based on the motion constraints, assembly constraints, and contact constraints between the associated structures of the sliding door, the simulation sub-model is constrained to obtain the constrained simulation sub-model. Based on the constrained simulation sub-model, a drive transmission unit is constructed to obtain the door opening drive mechanical simulation model.

4. The method according to claim 1, characterized in that, The process of applying gravitational field loads and driving force loads to the door opening drive mechanical simulation model, and obtaining the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under the gravitational field loads and the driving force loads, includes: A gravitational field load is applied to the door opening drive mechanical simulation model to bring it to a state of static equilibrium. A driving force load is applied to the door opening drive mechanical simulation model in the static equilibrium state, and displacement motion response information is obtained based on the simulation results after loading. The motion characteristics of the displacement motion response information are obtained, and the motion consistency of each sliding door associated structure is compared and analyzed based on the motion characteristics to obtain the coordination comparison results.

5. The method according to claim 4, characterized in that, The finite element analysis results of the sliding door obtained based on the displacement motion response results and the synergy comparison results include: The displacement motion response result is obtained based on the displacement motion response information; Based on the displacement motion response results and the synergy comparison results, the finite element analysis results of the sliding door are determined.

6. A finite element sliding door analysis device, characterized in that, include: The acquisition module is used to acquire the geometric information of the sliding door associated structure and to perform mesh discretization modeling on the geometric information of the sliding door associated structure to obtain the simulation sub-model of the sliding door associated structure; The construction module is used to construct a door opening drive mechanical simulation model based on the simulation sub-model of the sliding door's associated structure and the preset constraint relationship; The generation module is used to apply gravity field load and driving force load to the door opening drive mechanical simulation model, and obtain the displacement motion response results and synergy comparison results of the door opening drive mechanical simulation model under the gravity field load and the driving force load, and obtain the sliding door finite element analysis results based on the displacement motion response results and the synergy comparison results.

7. The apparatus according to claim 6, characterized in that, The acquisition module is specifically used for: The geometric information of the sliding door association structure is preprocessed to obtain a simplified sliding door association structure model; The simplified sliding door associated structure model is meshed according to the preset structure type. The mid-surface of the hinge support component is meshed with shell elements. Based on the thickness and material properties of the mesh model, a simulation sub-model of the sliding door associated structure is generated.

8. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and capable of running on the processor, the processor executing the program to implement the finite element sliding door analysis method as described in any one of claims 1-5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the finite element sliding door analysis method as described in any one of claims 1-5.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the finite element sliding door analysis method as described in any one of claims 1-5.

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