A simulation method and device of a connecting plate structure, electronic equipment and storage medium

Abstract

The present disclosure relates to a simulation method and device for a connecting plate structure, electronic equipment and a storage medium. The method comprises: obtaining connecting plate structure model data and load data; modeling according to the connecting plate structure model data to obtain a connecting plate structure finite element model; and simulating according to the connecting plate structure finite element model and the load data to obtain a simulation result. The present disclosure can realize modeling of the connecting plate structure by modeling the connecting plate structure model data to obtain the connecting plate structure finite element model. The present disclosure can realize simulation analysis of the dynamic characteristics of the connecting plate structure by simulating according to the connecting plate structure finite element model and the load data to obtain the simulation result.

Description

Technical Field

[0001] This invention relates to the field of computer technology, and in particular to a simulation method, apparatus, electronic device, and storage medium for a connecting plate structure. Background Technology

[0002] The integrated braking system is installed on the vehicle body via a firewall connecting plate structure. Due to the driver's braking action, the integrated braking system experiences a certain thrust, causing deformation of the firewall plate. Therefore, it is necessary to test the torsional stiffness of the firewall plate. In related technologies, the method for testing torsional stiffness involves fixing the part under test to a fixture according to the test method, applying a load at the test loading position, and then reading the deformation displacement at the load position to calculate the torsional stiffness value. However, this method often yields inaccurate values. When the part's stiffness is close to that of the test fixture, the deformation of the fixture under the load cannot be ignored, leading to an overestimation of the deformation displacement and an underestimation of the calculated torsional stiffness. Furthermore, under small loads, the deformation of the part is at the micrometer level, making it difficult for measuring equipment to measure accurately. Under excessively large loads, the part may undergo plastic deformation, resulting in distorted torsional stiffness results. For these reasons, the measured torsional stiffness of the firewall connecting plate often fails to meet requirements, necessitating redesign, leading to over-design, increased costs, and design difficulties. Summary of the Invention

[0003] To address at least one of the aforementioned technical problems, this disclosure provides a simulation method, apparatus, electronic device, and storage medium for a connecting plate structure.

[0004] On one hand, the present invention provides a simulation method for a connecting plate structure, including:

[0005] Obtain structural model data and load data for the connecting plate;

[0006] Modeling is performed based on the structural model data of the connecting plate to obtain the finite element model of the connecting plate structure;

[0007] Simulations were performed based on the finite element model of the connecting plate structure and load data to obtain simulation results.

[0008] In an optional embodiment, simulation is performed based on the finite element model of the connecting plate structure and load data to obtain simulation results, including:

[0009] Based on the finite element model of the connecting plate structure, load data is applied to the target position and simulation is performed to obtain the first response information. The target position is the position on the finite element model of the connecting plate structure that is connected to the vehicle body and braking system. The first response information characterizes the relationship between excitation frequency and acceleration.

[0010] The first response information is processed by relative acceleration analysis to obtain the second response information, which characterizes the relationship between excitation frequency and relative acceleration.

[0011] Based on the second response information, the relative stiffness is calculated to obtain the relative stiffness information;

[0012] Torsional stiffness analysis is performed on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure. The torsional stiffness information is a simulation result.

[0013] In an optional embodiment, the finite element model of the connecting plate structure includes at least one first mounting hole and at least one second mounting hole. The first mounting hole corresponds to a mounting hole on the connecting plate structure model that connects to the vehicle body, and the second mounting hole corresponds to a mounting hole on the connecting plate structure model that connects to the braking system. The load data includes constraint load data and excitation load data. Based on the finite element model of the connecting plate structure, the load data is applied at the target location and simulation is performed to obtain first response information, including:

[0014] Based on the finite element model of the connecting plate structure, constraint load data is applied to the first mounting hole, excitation load data is applied to the target mounting hole, and the response data corresponding to the excitation position and response position are extracted to obtain the first response information. The target mounting hole is any mounting hole in the second mounting hole.

[0015] In an optional embodiment, the first response information is subjected to relative acceleration analysis to obtain second response information, including:

[0016] Obtain the acceleration and phase data corresponding to each frequency data in the first response information;

[0017] Based on the acceleration and phase data, calculate the relative acceleration data corresponding to each frequency.

[0018] The second response information is determined based on the frequency data and relative acceleration data.

[0019] In an optional embodiment, based on the second response information, the target excitation frequency and target acceleration are determined, and relative stiffness is calculated to obtain relative stiffness information, including:

[0020] Based on the second response information, the target excitation frequency and target acceleration are determined. The target excitation frequency is the first-order resonant frequency, and the target acceleration is the relative acceleration corresponding to the target excitation frequency.

[0021] Based on the excitation load data, target excitation frequency, and target acceleration, the relative stiffness is calculated to obtain the relative stiffness information.

[0022] In an optional embodiment, torsional stiffness analysis is performed on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure, including:

[0023] Obtain target distance information, which is the distance from the excitation position to the response position;

[0024] Based on the relative stiffness information and the target distance information, the torsional stiffness is calculated to obtain the torsional stiffness information corresponding to the connecting plate structure.

[0025] In an optional embodiment, a finite element model of the connecting plate structure is obtained by modeling based on the connecting plate structure model data, including:

[0026] Determine the geometric model of the connecting plate structure based on the connecting plate structural model data;

[0027] Finite element analysis was performed on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure.

[0028] Secondly, the present invention also provides a simulation device for a connecting plate structure, comprising:

[0029] The acquisition module is used to acquire structural model data and load data of the connection plate;

[0030] The modeling module is used to model the connection plate structure based on the connection plate structure model data, and obtain the finite element model of the connection plate structure.

[0031] The simulation module is used to perform simulations based on the finite element model of the connecting plate structure and load data, and obtain simulation results.

[0032] Thirdly, the present invention also provides an electronic device, comprising:

[0033] processor;

[0034] Memory used to store processor-executable instructions;

[0035] The processor is used to execute instructions to implement the simulation method of the above-mentioned connecting board structure.

[0036] Fourthly, the present invention also provides a storage medium that, when the instructions in the storage medium are executed by the processor of an electronic device, enables the electronic device to execute the simulation method of the above-described connection board structure.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0038] Implementing this disclosure will have the following beneficial effects:

[0039] Obtain the structural model data and load data of the connecting plate; perform modeling based on the structural model data of the connecting plate to obtain the finite element model of the connecting plate structure; perform simulation based on the finite element model of the connecting plate structure and the load data to obtain the simulation results.

[0040] This disclosure obtains a finite element model of the connecting plate structure by modeling the connecting plate structure model data, which enables the modeling of the connecting plate structure; by performing simulation based on the finite element model of the connecting plate structure and load data, simulation results are obtained, which enables the simulation analysis of the dynamic characteristics of the connecting plate structure, making the simulation results closer to the actual parameters and improving the simulation accuracy.

[0041] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0042] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The accompanying drawings are incorporated in and constitute a part of this specification, illustrating embodiments consistent with this disclosure, and are used together with the description to explain the principles of this disclosure, and do not constitute an improper limitation of this disclosure.

[0043] Figure 1 This is a schematic diagram of an implementation environment according to an exemplary embodiment;

[0044] Figure 2 This is a flowchart illustrating a simulation method for a connecting plate structure according to an exemplary embodiment;

[0045] Figure 3 This is a schematic diagram illustrating a first response information and a second response information according to an exemplary embodiment;

[0046] Figure 4 This is a schematic diagram of a simulation device for a connecting plate structure according to an exemplary embodiment;

[0047] Figure 5 This is a block diagram illustrating an electronic device for simulating a connecting board structure according to an exemplary embodiment. Detailed Implementation

[0048] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0049] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0050] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise. The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0051] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0052] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0053] Please see Figure 1 , Figure 1This is a schematic diagram illustrating an application environment according to an exemplary embodiment, such as... Figure 1 As shown, the application environment may include server 01 and terminal 02.

[0054] In an optional embodiment, server 01 can be used for computational processing in a simulation method for connecting board structures. Specifically, server 01 can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery networks (CDNs), and big data and artificial intelligence platforms.

[0055] In an optional embodiment, terminal 02 can perform computational processing in conjunction with a simulation method of the connection board structure of server 01. Specifically, terminal 02 can be, but is not limited to, electronic devices such as smartphones, desktop computers, tablets, laptops, smart speakers, digital assistants, augmented reality (AR) / virtual reality (VR) devices, and smart wearable devices. Optionally, the operating system running on the electronic device can be, but is not limited to, Android, iOS, Linux, Windows, and Unix systems.

[0056] For example, terminal 02 obtains the structural model data and load data of the connecting plate and sends them to server 01; server 01 performs modeling based on the structural model data of the connecting plate to obtain the finite element model of the connecting plate structure; simulation is performed based on the finite element model of the connecting plate structure and the load data to obtain the simulation results, and the simulation results are fed back to terminal 02.

[0057] In addition, it should be noted that, Figure 1 The example shown is merely one application environment provided by this disclosure. In practical applications, other application environments may also be included.

[0058] In the embodiments described in this specification, the server 01 and the terminal 02 can be directly or indirectly connected through wired or wireless communication, and this disclosure does not impose any restrictions.

[0059] Figure 2 This is a flowchart illustrating a simulation method for a connecting plate structure according to an exemplary embodiment, such as... Figure 2 As shown, it includes the following:

[0060] Step S201: Obtain the structural model data and load data of the connecting plate.

[0061] In this embodiment, the connecting plate structure model data can be obtained by measuring the actual connecting plate structure, which is a firewall connecting plate in a vehicle braking integrated system. This firewall connecting plate connects the braking integrated system to the vehicle body. Load data can be set according to actual simulation requirements. Optionally, the connecting plate structure model data includes structural dimensions, material density, elastic modulus, and Poisson's ratio.

[0062] Step S202: Model the connection plate structure based on the connection plate structure model data to obtain the finite element model of the connection plate structure.

[0063] In this embodiment of the disclosure, a finite element model of the connecting plate structure is obtained by modeling based on the connecting plate structure model data, including:

[0064] Step S2021: Determine the geometric model of the connecting plate structure based on the connecting plate structure model data.

[0065] In this embodiment of the disclosure, a corresponding geometric model of the connecting plate structure is constructed based on the dimensional data of the connecting plate structure.

[0066] Step S2022: Perform finite element analysis on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure.

[0067] In this embodiment, the geometric model of the connecting plate structure is meshed using finite element methods. The meshing operation is performed based on the mechanical structural characteristics of the connecting plate structure. Subsequently, the meshing results are connected to establish connection relationships, and element types, material properties, etc., are set to obtain the finite element model of the connecting plate structure. Optionally, the elements are set to second order.

[0068] As can be seen from the above, in this embodiment of the present disclosure, by determining the geometric model of the connecting plate structure based on the connecting plate structure model data, and by performing finite element analysis on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure, the construction of the finite element model of the connecting plate structure can be completed, so that simulation processing can be carried out based on the finite element model of the connecting plate structure.

[0069] Step S203: Perform simulation based on the finite element model of the connecting plate structure and load data to obtain simulation results.

[0070] In this embodiment of the disclosure, simulation is performed based on the finite element model of the connecting plate structure and load data to obtain simulation results, including:

[0071] Step S2031: Based on the finite element model of the connecting plate structure, apply load data to the target position and perform simulation to obtain the first response information. The target position is the position on the finite element model of the connecting plate structure that is connected to the vehicle body and braking system. The first response information characterizes the relationship between excitation frequency and acceleration.

[0072] In this embodiment, the finite element model of the connecting plate structure includes at least one first mounting hole and at least one second mounting hole. The first mounting hole corresponds to the mounting hole on the connecting plate structure model that connects to the vehicle body, and the second mounting hole corresponds to the mounting hole on the connecting plate structure model that connects to the braking system. The load data includes constraint load data and excitation load data. Optionally, the connecting plate structure finite element model has a protrusion in the middle for connecting the braking integrated system, and planar connecting plates around the protrusion for connecting the vehicle body. The connecting plate structure finite element model has four first mounting holes distributed on the planar connecting plates around the connecting plate structure finite element model, and two second mounting holes distributed on the plane of the protrusion of the connecting plate structure finite element model. The plane of the protrusion is parallel to the planar connecting plates.

[0073] In this embodiment of the disclosure, based on the finite element model of the connecting plate structure, load data is applied at the target location and simulation is performed to obtain first response information, including:

[0074] Based on the finite element model of the connecting plate structure, constraint load data is applied to the first mounting hole, excitation load data is applied to the target mounting hole, and the response data corresponding to the excitation position and response position are extracted to obtain the first response information. The target mounting hole is any mounting hole in the second mounting hole.

[0075] In this embodiment, constraint load data is used to constrain the first mounting hole, simulating the constraint force under actual working conditions. Excitation load data is used to apply dynamic load force to any of the second mounting holes, simulating the force borne by the second mounting hole under actual working conditions. After the load is applied, simulation processing is performed to extract the response data corresponding to the excitation position and the response position, respectively, to obtain the first response information. The excitation position is the location point where the excitation load data is applied, and the response position is the location point of the other second mounting hole. The first response information includes the acceleration curves corresponding to the excitation position and the response position within the frequency range indicated by the excitation load data.

[0076] As can be seen from the above, in this embodiment of the present disclosure, by applying constraint load data to the first mounting hole and excitation load data to the target mounting hole based on the finite element model of the connecting plate structure, it is possible to simulate the stress condition of the connecting plate structure under actual working conditions. By extracting the response data corresponding to the excitation position and the response position, the first response information can be obtained, and the displacement acceleration data of the excitation position and the response position at different frequencies can be acquired.

[0077] Step S2032: Perform relative acceleration analysis on the first response information to obtain the second response information, which characterizes the relationship between the excitation frequency and the relative acceleration.

[0078] In this embodiment of the disclosure, the first response information is subjected to relative acceleration analysis to obtain the second response information, including:

[0079] Obtain the acceleration and phase data corresponding to each frequency data in the first response information.

[0080] In this embodiment of the disclosure, the acceleration data and phase data corresponding to each frequency data in the first response information can be obtained by reading the acceleration data and phase data corresponding to different positions of the curve in the first response information by analysis software.

[0081] Based on the acceleration and phase data, calculate the relative acceleration data corresponding to each frequency.

[0082] In this embodiment of the disclosure, the relative acceleration data corresponding to each frequency data is calculated based on the acceleration data and phase data, and can be obtained by the following formula (1):

[0083]

[0084] In equation (1), For relative acceleration data, For acceleration data at the excitation position, In response to the acceleration data at the position, θ e For the acceleration phase data at the excitation position, θ r The acceleration phase data is for the excitation position.

[0085] The second response information is determined based on the frequency data and relative acceleration data.

[0086] In this embodiment of the disclosure, a curve representing the correspondence between each frequency data and the relative acceleration data is plotted based on each frequency data and the relative acceleration data to obtain the second response information. Figure 3 This is a schematic diagram of the first and second response information, including the acceleration curve at the excitation point, the acceleration curve at the response point, and the relative acceleration curve.

[0087] Based on the above, in this embodiment of the present disclosure, by calculating the relative acceleration data corresponding to each frequency data according to the acceleration data and phase data, and determining the second response information according to each frequency data and relative acceleration data, it is possible to determine the relative acceleration between the excitation position and the response position as a function of frequency.

[0088] Step S2033: Based on the second response information, perform relative stiffness calculation to obtain relative stiffness information.

[0089] In this embodiment of the disclosure, based on the second response information, the target excitation frequency and target acceleration are determined, and relative stiffness is calculated to obtain relative stiffness information, including:

[0090] Based on the second response information, the target excitation frequency and target acceleration are determined. The target excitation frequency is the first-order resonant frequency, and the target acceleration is the relative acceleration corresponding to the target excitation frequency.

[0091] In this embodiment of the disclosure, based on the relative acceleration change with frequency indicated by the second response information, the frequency value of the first-order resonant frequency and the relative acceleration value corresponding to that frequency value can be determined.

[0092] Based on the excitation load data, target excitation frequency, and target acceleration, the relative stiffness is calculated to obtain the relative stiffness information.

[0093] In this embodiment of the disclosure, the relative displacement corresponding to the target acceleration is first calculated, which can be obtained according to the following formulas (2) and (3):

[0094]

[0095] In equation (2), a is the relative displacement value corresponding to 40% of the target excitation frequency value. The data represents relative acceleration, where f is 40% of the target excitation frequency.

[0096]

[0097] In equation (3), a0 is the relative displacement value corresponding to the target excitation frequency value. The values ​​are relative acceleration data, and f0 is the target excitation frequency value.

[0098] Then, the relative stiffness information is calculated according to the following formula (4):

[0099]

[0100] In equation (4), k is the relative stiffness information, F is the excitation load, f0 is the target excitation frequency value, f is 40% of the value of f0, a0 is the relative displacement value corresponding to the target excitation frequency value, and a is the relative displacement value corresponding to 40% of the target excitation frequency value.

[0101] As can be seen from the above, in this embodiment of the present disclosure, the target excitation frequency and target acceleration are determined based on the second response information. The target excitation frequency is the first-order resonance frequency, and the target acceleration is the relative acceleration corresponding to the target excitation frequency. The relative stiffness is calculated based on the excitation load data, the target excitation frequency, and the target acceleration to obtain the relative stiffness information, thus enabling the calculation of relative stiffness.

[0102] Step S2034: Perform torsional stiffness analysis on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure. The torsional stiffness information belongs to the simulation results.

[0103] In this embodiment of the disclosure, torsional stiffness analysis is performed on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure, including:

[0104] Obtain target distance information, which is the distance from the excitation position to the response position.

[0105] Based on the relative stiffness information and the target distance information, the torsional stiffness is calculated to obtain the torsional stiffness information corresponding to the connecting plate structure.

[0106] In this embodiment of the disclosure, torsional stiffness is calculated based on relative stiffness information and target distance information to obtain torsional stiffness information corresponding to the connecting plate structure, which can be calculated by the following formula (5).

[0107] K θ =K·d 2 (5)

[0108] In equation (5), K θ For torsional stiffness information, k represents relative stiffness information, and d represents target distance information.

[0109] Based on the above, in this embodiment of the present disclosure, by obtaining target distance information, which is the distance from the excitation position to the response position, and by performing torsional stiffness calculation based on relative stiffness information and target distance information, the torsional stiffness information corresponding to the connecting plate structure can be obtained, thereby realizing the calculation of torsional stiffness information under simulation and making the torsional stiffness information more accurate.

[0110] In the above embodiments, by determining the geometric model of the connecting plate structure based on the connecting plate structure model data, and performing finite element analysis on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure, the construction of the finite element model of the connecting plate structure can be completed, so that simulation processing can be carried out based on the finite element model of the connecting plate structure. By applying constraint load data to the first mounting hole and excitation load data to the target mounting hole based on the finite element model of the connecting plate structure, the stress condition of the connecting plate structure under actual working conditions can be simulated. By extracting the response data corresponding to the excitation position and the response position, the first response information can be obtained, and the displacement acceleration data of the excitation position and the response position at different frequencies can be obtained. By calculating the relative acceleration data corresponding to each frequency data based on the acceleration data and phase data, the relative acceleration data corresponding to each frequency data can be calculated. By using rate data and relative acceleration data, the second response information is determined, enabling the determination of how the relative acceleration between the excitation and response positions changes with frequency. Based on the second response information, the target excitation frequency and target acceleration are determined. The target excitation frequency is the first-order resonant frequency, and the target acceleration is the relative acceleration corresponding to the target excitation frequency. Relative stiffness is calculated based on the excitation load data, target excitation frequency, and target acceleration to obtain relative stiffness information. This enables the calculation of relative stiffness. By acquiring target distance information, which is the distance from the excitation position to the response position, and based on the relative stiffness information and target distance information, torsional stiffness is calculated to obtain the torsional stiffness information corresponding to the connecting plate structure. This enables the calculation of torsional stiffness information under simulation, making the torsional stiffness information more accurate.

[0111] In one specific implementation, the steps of this disclosure include:

[0112] Simulations were performed on the structure of a firewall connection plate with grade DC03 material, whose density is 7.85E-9t / mm². 3 Its elastic modulus is 210,000 MPa and its Poisson's ratio is 0.29.

[0113] Step 1: Use finite element processing software to convert the geometric model of the firewall connection plate structure into a finite element model, and set the element to second order.

[0114] Step 2: Apply constraint loads to the four mounting holes of the firewall connection plate structure finite element model connected to the vehicle body. Establish an excitation point and a response point near the two mounting holes of the brake integration system. Apply a dynamic load of 1N to the excitation point and solve the established model.

[0115] Step 3: Extract the frequency-acceleration curves of the excitation and response points.

[0116] Step 4: Using the frequency-acceleration data at the excitation and response points, according to the formula...

[0117]

[0118] The relative acceleration was calculated, and a frequency-relative acceleration curve was plotted. The curve shows a first-order resonant frequency of 1940 Hz, corresponding to an acceleration of 1.43E8 mm / s². ^2 The displacement is calculated to be 0.955 mm. Taking half of the resonance frequency, 975 Hz, as the frequency used to calculate the stiffness, the corresponding acceleration is 3.75E4 mm / s². ^2 The displacement is calculated to be 0.001 mm.

[0119] Step 5: Substitute the data obtained in Step 4 into the formula.

[0120]

[0121] The relative stiffness k value was calculated, where f0 = 1940Hz, a0 = 0.955mm, f = 975Hz, a = 0.001mm, and F = 1N. The calculated k = 799.2 kN / m. Torsional stiffness is calculated using the formula:

[0122] K θ =K·d 2

[0123] Where d is the distance between the excitation point and the response point, which is 82.834 mm. K is calculated to be... θ = 5.48 kNm / rad.

[0124] Through the above steps, the torsional stiffness of the firewall connection plate is found to be 5.48 kNm / rad.

[0125] Figure 4 This is a block diagram of a simulation device illustrating a connecting plate structure according to an exemplary embodiment. (Refer to...) Figure 4 The device includes an acquisition module 401, a modeling module 402, and a simulation module 403, wherein...

[0126] Module 401 is used to acquire structural model data and load data of the connection plate;

[0127] Modeling module 402 is used to model the connection plate structure based on the connection plate structure model data to obtain the finite element model of the connection plate structure.

[0128] Simulation module 403 is used to perform simulations based on the finite element model of the connecting plate structure and load data, and obtain simulation results.

[0129] In an optional embodiment, simulation module 403 includes:

[0130] The first response information module is used to apply load data to the target position and perform simulation based on the finite element model of the connecting plate structure to obtain the first response information. The target position is the position on the finite element model of the connecting plate structure that is connected to the vehicle body and braking system. The first response information characterizes the relationship between excitation frequency and acceleration.

[0131] The second response information module is used to perform relative acceleration analysis on the first response information to obtain the second response information, which characterizes the relationship between the excitation frequency and the relative acceleration.

[0132] The relative stiffness information module is used to calculate the relative stiffness based on the second response information to obtain the relative stiffness information;

[0133] The torsional stiffness information module is used to perform torsional stiffness analysis on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure. The torsional stiffness information is a simulation result.

[0134] In an optional embodiment, the finite element model of the connecting plate structure includes at least one first mounting hole and at least one second mounting hole. The first mounting hole corresponds to a mounting hole on the connecting plate structure model that connects to the vehicle body, and the second mounting hole corresponds to a mounting hole on the connecting plate structure model that connects to the braking system. The load data includes constraint load data and excitation load data. The first response information module includes:

[0135] The extraction module is used to apply constraint load data to the first mounting hole and excitation load data to the target mounting hole based on the finite element model of the connecting plate structure, and extract the response data corresponding to the excitation position and response position respectively to obtain the first response information. The target mounting hole is any mounting hole in the second mounting hole.

[0136] In an optional embodiment, the second response information module includes:

[0137] The first acquisition submodule is used to acquire the acceleration data and phase data corresponding to each frequency data in the first response information;

[0138] The relative acceleration data module is used to calculate the relative acceleration data corresponding to each frequency data based on acceleration data and phase data;

[0139] The second response information submodule is used to determine the second response information based on the frequency data and relative acceleration data.

[0140] In an optional embodiment, the relative stiffness information module includes:

[0141] The target determination module is used to determine the target excitation frequency and target acceleration based on the second response information. The target excitation frequency is the first-order resonant frequency, and the target acceleration is the relative acceleration corresponding to the target excitation frequency.

[0142] The relative stiffness information submodule is used to calculate the relative stiffness based on the excitation load data, target excitation frequency, and target acceleration to obtain the relative stiffness information.

[0143] In an optional embodiment, the torsional stiffness information module includes:

[0144] The second acquisition submodule is used to acquire target distance information, which is the distance from the excitation position to the response position;

[0145] The torsional stiffness information submodule is used to calculate the torsional stiffness based on the relative stiffness information and the target distance information, so as to obtain the torsional stiffness information corresponding to the connecting plate structure.

[0146] In an optional embodiment, the modeling module 402 includes:

[0147] The geometric model module is used to determine the geometric model of the connecting plate structure based on the connecting plate structure model data.

[0148] The finite element model module is used to perform finite element analysis on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure.

[0149] In an exemplary embodiment, an electronic device is also provided, including: a processor; and a memory for storing processor-executable instructions; wherein the processor is used for the instructions to implement a simulation method for a connection board structure as described in the embodiments of this disclosure.

[0150] Figure 5 This is a block diagram illustrating an electronic device for simulating a connecting board structure according to an exemplary embodiment. The electronic device may be a terminal, and its internal structure diagram may be as follows: Figure 5As shown, the electronic device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a simulation method for a connection board structure. The display screen can be a liquid crystal display (LCD) or an e-ink display. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the device's casing, or an external keyboard, touchpad, or mouse.

[0151] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present disclosure and does not constitute a limitation on the electronic device to which the present disclosure is applied. A specific electronic device may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0152] In an exemplary embodiment, a storage medium is also provided, which, when the instructions in the storage medium are executed by the processor of an electronic device, enables the electronic device to execute the simulation method of the connection board structure in the embodiments of this disclosure.

[0153] In an exemplary embodiment, a computer program product containing instructions is also provided, which, when run on a computer, causes the computer to execute the simulation method of the connection plate structure in the embodiments of this disclosure.

[0154] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this disclosure can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0155] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0156] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A simulation method for a connecting plate structure, characterized in that, The method includes: Acquire structural model data and load data for the connecting plate; the load data includes constraint load data and excitation load data. Modeling is performed based on the connecting plate structure model data to obtain a finite element model of the connecting plate structure; the finite element model of the connecting plate structure includes at least one first mounting hole and two second mounting holes; the first mounting hole corresponds to the mounting hole on the connecting plate structure model that connects to the vehicle body, and the second mounting hole corresponds to the mounting hole on the connecting plate structure model that connects to the braking system. Based on the finite element model of the connecting plate structure, the constraint load data is applied to the first mounting hole, the excitation load data is applied to the target mounting hole, and the response data corresponding to the excitation position and the response position are extracted to obtain the first response information. The target mounting hole is any one of the second mounting holes; the excitation position is the location point where the excitation load data is applied, and the response position is the location point of the other second mounting hole; the first response information characterizes the relationship between the excitation frequency and the acceleration. Obtain the acceleration data and phase data corresponding to each frequency data in the first response information; Based on the acceleration data and the phase data, calculate the relative acceleration data corresponding to each frequency data; Based on the frequency data and the relative acceleration data, a second response information is determined; the second response information characterizes the relationship between the excitation frequency and the relative acceleration. Based on the second response information, relative stiffness is calculated to obtain relative stiffness information; Torsional stiffness analysis is performed on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure. The torsional stiffness information is a simulation result.

2. The method according to claim 1, characterized in that, Based on the second response information, the target excitation frequency and target acceleration are determined, and relative stiffness is calculated to obtain relative stiffness information, including: Based on the second response information, the target excitation frequency and the target acceleration are determined, wherein the target excitation frequency is the first-order resonant frequency and the target acceleration is the relative acceleration corresponding to the target excitation frequency; Based on the excitation load data, the target excitation frequency, and the target acceleration, relative stiffness is calculated to obtain relative stiffness information.

3. The method according to claim 1, characterized in that, The process of performing torsional stiffness analysis on the relative stiffness information to obtain the torsional stiffness information corresponding to the connecting plate structure includes: Obtain target distance information, which is the distance from the excitation position to the response position; Based on the relative stiffness information and the target distance information, torsional stiffness is calculated to obtain the torsional stiffness information corresponding to the connecting plate structure.

4. The method according to claim 1, characterized in that, The step of modeling based on the connection plate structure model data to obtain the finite element model of the connection plate structure includes: The geometric model of the connecting plate structure is determined based on the connecting plate structure model data. Finite element analysis was performed on the geometric model of the connecting plate structure to obtain the finite element model of the connecting plate structure.

5. A simulation device with a connecting plate structure, characterized in that, The device includes: The acquisition module is used to acquire structural model data and load data of the connecting plate; the load data includes constraint load data and excitation load data. The modeling module is used to model the connecting plate structure model data to obtain a finite element model of the connecting plate structure; the finite element model of the connecting plate structure includes at least one first mounting hole and two second mounting holes; the first mounting hole corresponds to the mounting hole on the connecting plate structure model that is connected to the vehicle body, and the second mounting hole corresponds to the mounting hole on the connecting plate structure model that is connected to the braking system. The simulation module is used to apply the constraint load data to the first mounting hole and the excitation load data to the target mounting hole based on the finite element model of the connecting plate structure, and to extract the response data corresponding to the excitation position and the response position to obtain first response information. The target mounting hole is any one of the second mounting holes; the excitation position is the location point where the excitation load data is applied, and the response position is the location point of the other second mounting hole; the first response information represents the relationship between excitation frequency and acceleration; the module obtains the acceleration data and phase data corresponding to each frequency data in the first response information; calculates the relative acceleration data corresponding to each frequency data based on the acceleration data and the phase data; determines the second response information based on the frequency data and the relative acceleration data; the second response information represents the relationship between excitation frequency and relative acceleration; performs relative stiffness calculation based on the second response information to obtain relative stiffness information; and performs torsional stiffness analysis on the relative stiffness information to obtain torsional stiffness information corresponding to the connecting plate structure. The torsional stiffness information is a simulation result.

6. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is used for the instructions to implement the simulation method for the connection plate structure as described in any one of claims 1 to 4.

7. A storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the electronic device, the electronic device is able to perform the simulation method of the connection board structure as described in any one of claims 1 to 4.

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