Vehicle front panel structure analysis method, device, equipment and storage medium

Abstract

The application belongs to the technical field of vehicle design, and discloses a vehicle front panel structure analysis method, device, equipment and storage medium. The method comprises the following steps: constructing a panel analysis model according to model constraint information; determining a plurality of panel states of a front panel according to the panel analysis model; and performing analysis according to each panel state and the panel analysis model according to working condition classification to obtain a structure analysis result of the front panel. Through the above method, the structure analysis result of the designed front panel is obtained by performing analysis according to the pre-constructed panel analysis model and each panel state of the front panel according to working condition classification, so that the structural reliability of the front panel can be more effectively judged, and the cost of the judgment process is reduced and the effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle design, and particularly relates to a vehicle front panel structure analysis method, device, equipment and storage medium. BACKGROUND

[0002] In the production process of a truck, there are many kinds and shapes of front panel structures, which are designed at the time of production, and each front panel structure of the truck needs to be tested after design, and the structural reliability can be determined only after many experiments. There is no clear calculation method for the front panel structure of the truck at present, and the structural reliability needs to be determined by reliability test or bench test during development, which is long in development cycle and high in cost.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a vehicle front panel structure analysis method, device, equipment and storage medium, which aims to solve the technical problems of no clear calculation method for the design of the vehicle front panel of the prior art, and the need for entity experiment during development, and high cost.

[0005] To achieve the above purpose, the present application provides a vehicle front panel structure analysis method, which comprises the following steps:

[0006] constructing a panel analysis model through model constraint information;

[0007] determining a plurality of panel states of the front panel according to the panel analysis model;

[0008] analyzing according to the panel states and the panel analysis model according to working condition classification to obtain a structure analysis result of the front panel.

[0009] Optionally, the constructing a panel analysis model through model constraint information comprises:

[0010] obtaining model constraint information;

[0011] determining working condition constraint information and working condition force description information corresponding to a plurality of constraint working conditions according to the model constraint information;

[0012] constructing a panel analysis model containing each constraint working condition according to the working condition constraint information and the working condition force description information.

[0013] Optionally, the analyzing according to the panel states and the panel analysis model according to working condition classification to obtain a structure analysis result of the front panel comprises:

[0014] obtaining working condition classification information;

[0015] According to the working condition classification information, a plurality of to-be-analyzed working conditions are obtained;

[0016] According to the to-be-analyzed working conditions, analysis of each panel state is performed by the panel analysis model, and working condition analysis results are obtained;

[0017] The working condition analysis results are integrated, and a structure analysis result of the front panel is obtained.

[0018] Optionally, the analysis of each panel state according to the to-be-analyzed working conditions by the panel analysis model to obtain the working condition analysis results comprises:

[0019] When the to-be-analyzed working condition is a stress analysis working condition, force point position information and point position pressure information corresponding to each panel state under the stress analysis working condition are obtained;

[0020] A stress analysis simulation strategy is formulated according to the force point position information and the point position pressure information;

[0021] According to the stress analysis simulation strategy and the panel analysis model, stress analysis of a static working condition, a limit working condition, a front panel mis-opening working condition, and a front panel closing working condition under each panel state is sequentially performed, and a plurality of working condition stress analysis results are obtained;

[0022] The working condition analysis results are obtained according to the working condition stress analysis results.

[0023] Optionally, the analysis of each panel state according to the to-be-analyzed working conditions by the panel analysis model to obtain the working condition analysis results comprises:

[0024] When the to-be-analyzed working condition is a deformation analysis working condition, the panel state is set to a normally closed and locked state in the panel analysis model;

[0025] In the panel analysis model, each part of the front panel is subjected to corresponding part self-gravity, and a deformation displacement graph and a stress distribution graph are intercepted;

[0026] According to the deformation displacement graph and the stress distribution graph, a working condition analysis result corresponding to the deformation analysis working condition is obtained.

[0027] Optionally, the analysis of each panel state according to the to-be-analyzed working conditions by the panel analysis model to obtain the working condition analysis results comprises:

[0028] When the to-be-analyzed working condition is a pressing stiffness analysis working condition, the panel state is set to a normally closed and locked state in the panel analysis model;

[0029] Force surface information and pressure information are obtained;

[0030] According to the stress surface information and the pressure information, a specified pressure is applied to a specified stress surface of the front panel in the panel analysis model, and a pressing deformation displacement graph is intercepted;

[0031] According to the pressing deformation displacement graph, a working condition analysis result corresponding to the pressing stiffness analysis working condition is obtained.

[0032] Optionally, the analysis of each panel state according to the working condition to be analyzed by the panel analysis model to obtain a working condition analysis result, comprises:

[0033] When the working condition to be analyzed is a part vibration analysis working condition, the panel state is set as a normal closing locking state and an abnormal closing locking state in the panel analysis model;

[0034] In the normal closing locking state, a unit excitation is applied to each constraint point in the panel analysis model to obtain a normal state excitation result;

[0035] In the locking abnormal state, a unit excitation is applied to each constraint point in the panel analysis model to obtain an abnormal state excitation result;

[0036] According to the normal state excitation result and the abnormal state excitation result, a working condition analysis result corresponding to the part vibration analysis working condition is obtained.

[0037] In addition, to achieve the above-mentioned purpose, the application further provides a vehicle front panel structure analysis device, which comprises:

[0038] A model construction module is configured to construct a panel analysis model according to model constraint information;

[0039] A state determination module is configured to determine a plurality of panel states of a front panel according to the panel analysis model;

[0040] A structure analysis module is configured to analyze according to each panel state and the panel analysis model according to working condition classification to obtain a structure analysis result of the front panel.

[0041] In addition, to achieve the above-mentioned purpose, the application further provides a vehicle front panel structure analysis device, which comprises: a memory, a processor, and a vehicle front panel structure analysis program stored in the memory and executable on the processor, wherein the vehicle front panel structure analysis program is configured to implement the steps of the vehicle front panel structure analysis method as described above.

[0042] In addition, to achieve the above object, the application further provides a storage medium, which has a vehicle front panel structure analysis program stored thereon, and the vehicle front panel structure analysis program, when executed by a processor, implements the steps of the vehicle front panel structure analysis method as described above.

[0043] The application constructs a panel analysis model according to model constraint information, determines a plurality of panel states of a front panel according to the panel analysis model, and analyzes according to working conditions according to each panel state and the panel analysis model to obtain a structure analysis result of the front panel. In this way, the structure analysis result of the front panel that has been designed is obtained by analyzing according to the pre-constructed panel analysis model and each panel state of the front panel according to working conditions, so that the structure reliability of the front panel can be more effectively judged, the cost of the judgment process is reduced, and the effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a structural schematic diagram of a vehicle front panel structure analysis device of a hardware running environment related to an embodiment scheme of the application.

[0045] Figure 2 is a flowchart of a vehicle front panel structure analysis method first embodiment of the application.

[0046] Figure 3 is a flowchart of a vehicle front panel structure analysis method second embodiment of the application.

[0047] Figure 4 is a structural block diagram of a vehicle front panel structure analysis device first embodiment of the application.

[0048] The realization of the object, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0050] Reference Figure 1 , Figure 1 is a structural schematic diagram of a vehicle front panel structure analysis device of a hardware running environment related to an embodiment scheme of the application.

[0051] As Figure 1As shown in the figure, the vehicle front panel structure analysis device can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection communication between the components. The user interface 1003 can include a display, an input unit such as a keyboard, and can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM) memory, or a stable non-volatile memory (NVM) such as a disk memory. The memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0052] Those skilled in the art can understand that Figure 1 The structure shown in the figure does not constitute a limitation on the vehicle front panel structure analysis device, and can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0053] As Figure 1 As shown, the memory 1005 as a storage medium can include an operating system, a network communication module, a user interface module, and a vehicle front panel structure analysis program.

[0054] In Figure 1 In the vehicle front panel structure analysis device shown in the figure, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the vehicle front panel structure analysis device can be arranged in the vehicle front panel structure analysis device, and the vehicle front panel structure analysis device calls the vehicle front panel structure analysis program stored in the memory 1005 through the processor 1001, and executes the vehicle front panel structure analysis method provided by the embodiment of the application.

[0055] The embodiment of the application provides a vehicle front panel structure analysis method, which refers to Figure 2 , Figure 2 The flowchart of a first embodiment of a vehicle front panel structure analysis method of the application is shown in the figure.

[0056] In this embodiment, the vehicle front panel structure analysis method includes the following steps:

[0057] Step S10: constructing a panel analysis model by model constraint information.

[0058] It should be noted that the execution subject of the embodiment is an intelligent device, which can be a personal computer, a computer, a notebook computer, a smart phone, a server, or other devices capable of information processing and analysis, and the embodiment does not limit this.

[0059] It should be understood that the current structural reliability analysis of the front panel of the vehicle is mainly verified and problems are found through multiple experiments of entities after production, but this consumes a large amount of manpower and time cost, and the efficiency is not high. According to the pre-constructed panel analysis model and the states of each panel of the front panel, the scheme of the embodiment classifies and analyzes the working conditions, and finally obtains the structural analysis result of the front panel which has been designed and formed, so that the structural reliability of the front panel can be more effectively judged, and the judgment process cost is reduced and the effect is improved.

[0060] In specific implementation, the panel analysis model in the embodiment refers to a model for analyzing the structural reliability of the front panel constructed in CAE according to model constraint information.

[0061] It should be noted that the model constraint information refers to relevant information for experimentally constraining the panel analysis model in all aspects when constructing the panel analysis model.

[0062] Further, in order to accurately construct the panel analysis model, the S10 step includes: obtaining model constraint information; determining working condition constraint information and working condition stress description information corresponding to a plurality of constraint working conditions according to the model constraint information; and constructing a panel analysis model containing each constraint working condition according to the working condition constraint information and the working condition stress description information.

[0063] It should be understood that the model constraint information includes but is not limited to constraints on each part of the front panel in each state of the front panel, and simulation period, stiffness, etc.

[0064] In specific implementation, determining working condition constraint information and working condition stress description information corresponding to a plurality of constraint working conditions according to the model constraint information refers to: determining working condition constraint information of each part of the front panel and working condition stress description information of each part in each constraint working condition according to the model constraint information. The working condition constraint information refers to relevant information of which parts of the front panel are constrained in each working condition, and the working condition stress description information refers to the specific force applied to each part in each constraint working condition. The constraint working condition includes but is not limited to a normal closed locking state, an abnormal closed locking state, and an open state of the front panel.

[0065] It should be noted that the panel analysis model containing each constraint condition is constructed according to the constraint condition information and the stress description information of the constraint condition, which means that the constraint and limitation of the front panel under each constraint condition are configured according to the constraint condition information and the stress description information of the constraint condition.

[0066] It should be understood that the specific conditions under each constraint condition when the panel analysis model is constructed are as follows: 1, normal closing locking state, with front wall panel calculation, constraint of both ends of the front wall panel assembly, each limit rubber is simulated by a spring with a stiffness of 100, the left and right lock hooks are fixedly connected with the lock body mounting points, only the X direction displacement is limited, and then a force of 540N is applied. 2, abnormal closing locking state (left lock is not locked), with front wall panel calculation, constraint of both ends of the front wall panel assembly, the left and middle three limit rubbers are released, the right two limit rubbers are simulated by a spring with a stiffness of 100, the right lock hook is fixedly connected with the lock body mounting point, the left lock hook is released and not constrained, and only the X direction displacement is limited. 3, front panel opening state, with front wall panel calculation, the upper and lower ends of the two air springs are simulated by RB2 linkage, and both ends of the front wall panel assembly are constrained.

[0067] In this way, the panel analysis model is accurately established, and the subsequent structure reliability analysis is more accurate.

[0068] Step S20: determining a plurality of panel states of the front panel according to the panel analysis model.

[0069] In specific implementation, the panel states include three kinds: abnormal closing locking state, normal closing locking state and front panel opening state.

[0070] Step S30: performing analysis according to each panel state and the panel analysis model according to the constraint condition classification to obtain the structure analysis result of the front panel.

[0071] It should be noted that the analysis according to each panel state and the panel analysis model according to the constraint condition classification means that the panel analysis model is simulated and analyzed under each panel state, so as to obtain the structure analysis result.

[0072] The embodiment constructs the panel analysis model through the model constraint information, determines a plurality of panel states of the front panel according to the panel analysis model, and performs analysis according to each panel state and the panel analysis model according to the constraint condition classification to obtain the structure analysis result of the front panel. In this way, the structure analysis result of the front panel which has been designed is obtained by performing analysis according to the pre-constructed panel analysis model and each panel state of the front panel according to the constraint condition classification, so that the structure reliability of the front panel can be more effectively judged, the cost of the judgment process is reduced, and the effect is improved.

[0073] Reference Figure 3, Figure 3 FIG. 2 is a flowchart of a second embodiment of a vehicle front panel structure analysis method according to the present application.

[0074] Based on the first embodiment, the vehicle front panel structure analysis method of the present embodiment comprises the following steps in step S30:

[0075] Step S301: Obtain working condition classification information.

[0076] It should be noted that the working condition classification information refers to different situations for reliability analysis under various constraint working conditions.

[0077] Step S302: Obtain a plurality of working conditions to be analyzed according to the working condition classification information.

[0078] It should be understood that the plurality of working conditions to be analyzed obtained according to the working condition classification information includes but is not limited to stress analysis working conditions, deformation analysis working conditions, pressing stiffness analysis working conditions, and part vibration analysis working conditions.

[0079] Step S303: Analyze each panel state according to the working condition to be analyzed by the panel analysis model to obtain a working condition analysis result.

[0080] In a specific implementation, the working condition analysis result corresponding to each working condition to be analyzed is obtained by bringing the working condition to be analyzed into the panel analysis model for analysis.

[0081] Further, in order to analyze the front panel under the stress analysis working condition, step S303 comprises: when the working condition to be analyzed is a stress analysis working condition, obtaining force point position information and point position pressure information corresponding to each panel state under the stress analysis working condition; formulating a stress analysis simulation strategy according to the force point position information and the point position pressure information; sequentially performing stress analysis of static working conditions, limit working conditions, front panel mis-opening working conditions, and front panel closing working conditions according to the stress analysis simulation strategy and the panel analysis model, to obtain a plurality of working condition stress analysis results; and obtaining a working condition analysis result according to each working condition stress analysis result.

[0082] It should be noted that when the working condition to be analyzed is a stress analysis working condition, the force point position information corresponding to each panel state, i.e., the point position at which an external force needs to be applied under each panel state, and the point position pressure information, i.e., the related information of the magnitude of the pressure applied by each point position, are first obtained.

[0083] It should be understood that in the stress analysis simulation strategy formulated according to the force point information and the point pressure information, the specific stress analysis simulation strategy is: in the static working condition, the stress analysis simulation strategy is: the model constraint is set according to the normal closing locking state of the front panel, each part is loaded with the force generated by its own mass under the action of acceleration: 1: X direction 4.5G, Y direction 0, Z direction -1G; 2: Y direction 0, Y direction 4.5G, Z direction -1G; 3: Y direction 0, Y direction 0, Z direction -4.5G. The model constraint is set according to the abnormal closing locking state of the front panel (the left lock is not locked), each part is loaded with the force generated by its own mass under the action of acceleration: 1: X direction 4.5G, Y direction 0, Z direction -1G; 2: Y direction 0, Y direction 4.5G, Z direction -1G; 3: Y direction 0, Y direction 0, Z direction -4.5G.

[0084] In the limit working condition, the stress analysis simulation strategy is: the model constraint is set according to the normal closing locking state of the front panel, all parts are defined with mass, and acceleration excitation is applied to the fixed point with a frequency of 1-50Hz. (The stress generated by the gravity of the part itself is small, and the gravity is omitted when calculating the dynamic stress) 1: 1G excitation is applied in X direction; 2: 1G excitation is applied in Y direction; 3: 2G excitation is applied in Z direction. The model constraint is set according to the abnormal closing locking state of the front panel (the left lock is not locked), all parts are defined with mass, and acceleration excitation is applied to the fixed point with a frequency of 1-50Hz. 1: 1G excitation is applied in X direction; 2: 1G excitation is applied in Y direction; 3: 2G excitation is applied in Z direction.

[0085] In the front panel mis-opening working condition, the stress analysis simulation strategy is: the model constraint is set according to the normal closing locking state of the front panel, all parts are loaded with their own gravity. (The limit rubber block is not connected) 1: X direction force F1=200N is loaded in the 70*40 area of the lower inner side of the front panel. 2: X direction force F2=200N is loaded in the 70*40 area of the lower inner side of the left front panel.

[0086] In the front panel closing working condition, the stress analysis simulation strategy is: the model constraint is set according to the opening state of the front panel, all parts are loaded with their own gravity. 1: X direction force F1=100N (the closing force target value is ≤50N) is loaded in the 70*40 area of the lower outer side of the front panel. 2: X direction force F2=100N is loaded in the 70*40 area of the lower outer side of the left front panel.

[0087] In specific implementation, after the stress analysis of the static working condition, the limit working condition, the front panel mis-opening working condition and the front panel closing working condition is performed according to the stress analysis simulation strategy, the working condition stress analysis results are integrated to obtain the working condition analysis result.

[0088] In this way, the front panel structure reliability analysis under the stress analysis working condition can be accurately and comprehensively performed.

[0089] Further, in order to be able to perform structural reliability analysis under deformation analysis conditions, step S303 comprises: when the to-be-analyzed condition is a deformation analysis condition, setting the panel state in the panel analysis model as a normally closed and locked state; applying corresponding part self-gravities to each part of the front panel in the panel analysis model, and intercepting a deformation displacement graph and a stress distribution graph; obtaining a condition analysis result corresponding to the deformation analysis condition according to the deformation displacement graph and the stress distribution graph.

[0090] It should be noted that when it is determined to be a deformation analysis condition, the panel state in the panel analysis model is first set as a normally closed and locked state.

[0091] It should be understood that applying corresponding part self-gravities to each part of the front panel in the panel analysis model, and intercepting a deformation displacement graph and a stress distribution graph means that model constraints are in a normally closed and locked state of the front panel, and all parts apply self-gravities. Requirements: investigate system deformation displacement and stress, intercept system deformation displacement graph, stress distribution graph, stress distribution graph and stress value of main force parts, and mark the maximum displacement area, value, and direction. The final review standard is: the maximum displacement of the front panel grid and the body is less than or equal to 1 mm, the maximum stress safety factor is greater than or equal to 1.5 (according to part yield strength), and the maximum displacement and stress are less than M7.

[0092] It should be noted that obtaining a condition analysis result corresponding to the deformation analysis condition according to the deformation displacement graph and the stress distribution graph means that the condition analysis result of the deformation analysis condition is obtained according to the deformation displacement graph, the stress distribution graph, and the review standard.

[0093] In this way, accurate deformation analysis is realized, so that the deformation analysis condition of the front panel is quantitatively evaluated, and it is more reliable.

[0094] Further, in order to determine the structural reliability under the pressing stiffness analysis condition, step S303 comprises: when the to-be-analyzed condition is a pressing stiffness analysis condition, setting the panel state in the panel analysis model as a normally closed and locked state; obtaining force surface information and pressure information; applying a specified pressure to a specified force surface of the front panel in the panel analysis model according to the force surface information and the pressure information, and intercepting a pressing deformation displacement graph; and obtaining a condition analysis result corresponding to the pressing stiffness analysis condition according to the pressing deformation displacement graph.

[0095] It should be noted that when it is determined to be a pressing stiffness analysis condition, the panel state in the panel analysis model is first set as a normally closed and locked state.

[0096] It should be understood that the force surface information and the pressure information refer to determining the force surface setting of the front panel in the panel analysis model and the force application size.

[0097] In a specific implementation, according to the force surface information and the pressure information, a specified pressure is applied to a specified force surface of the front panel in the panel analysis model, and a pressing deformation displacement graph is intercepted, which means that the model is constrained in the normal closed locking state of the front panel, and a pressure is applied to the weak part of the plastic part along the normal of the curved surface. The force surface area, force value size, and displacement requirement are shown in Table 1.

[0098]

[0099] Table 1

[0100] In a specific implementation, after the above steps are performed, the part deformation displacement is further investigated, a deformation displacement graph and a stress distribution graph are intercepted, and a maximum displacement value is marked.

[0101] It should be noted that finally, the pressing stiffness analysis working condition corresponding working condition analysis result is determined according to the deformation displacement graph and the stress distribution graph and the marked maximum displacement value in combination with a standard. The standard is a stress safety factor ≥ 1.5 (according to the material yield strength), and the safety factor is greater than M7.

[0102] In this way, the structural reliability of the front panel in the pressing stiffness analysis working condition is analyzed.

[0103] Further, in order to analyze the structural reliability in the part vibration analysis working condition, step S303 includes: when the to-be-analyzed working condition is the part vibration analysis working condition, setting the panel state in the panel analysis model to the normal closed locking state and the abnormal closed locking state; applying a unit excitation to each constraint point in the panel analysis model in the normal closed locking state to obtain a normal state excitation result; applying a unit excitation to each constraint point in the panel analysis model in the abnormal closed locking state to obtain an abnormal state excitation result; and obtaining the working condition analysis result corresponding to the part vibration analysis working condition according to the normal state excitation result and the abnormal state excitation result.

[0104] It should be understood that when it is determined that the to-be-analyzed working condition is the part vibration analysis working condition, the panel state in the panel analysis model is set to the normal closed locking state and the abnormal closed locking state for analysis.

[0105] In a specific implementation, in the normal closing locking state, unit excitation is applied to each constraint point in the panel analysis model to obtain the normal state excitation result. That is, first, define the mass of all parts, apply unit excitation to the constraint points (for example, hinge seat, lock bracket, gas spring lower support, etc.) in the model, and the frequency is 1-50 Hz. The unit excitation is an excitation of an arbitrary value set in advance, which is not limited in this embodiment.

[0106] It should be noted that in the abnormal locking state, unit excitation is applied to each constraint point in the panel analysis model to obtain the abnormal state excitation result. That is, first, define the mass of all parts, apply unit excitation to the constraint points (for example, hinge seat, lock bracket, gas spring lower support, etc.) in the model, and the frequency is 1-50 Hz. The unit excitation is an excitation of an arbitrary value set in advance, which is not limited in this embodiment.

[0107] It should be understood that the determined working condition analysis result includes the comparison result obtained by comparing the normal state excitation result and the abnormal state excitation result with the analysis requirements and the analysis target. Among them, the analysis requirements are to investigate the vibration model and the maximum displacement of the parts at each frequency, and to extract the vibration mode animation and displacement value with a vibration displacement greater than 0.5 mm. The analysis target is that the maximum vibration displacement is less than or equal to 1 mm at 20-36 Hz and 45-50 Hz, and the vibration displacement is less than M7.

[0108] In this way, the part vibration analysis under two working conditions is realized, and the part vibration analysis of the front panel is more accurate and reliable.

[0109] Step S304: Integrate the working condition analysis results to obtain the structure analysis result of the front panel.

[0110] In a specific implementation, after the working condition analysis results of each working condition are determined, all working condition analysis results are integrated to determine whether the front panel under each working condition meets the standard and the fault that occurs, as the structure analysis result.

[0111] The embodiment obtains working condition classification information, obtains a plurality of working conditions to be analyzed according to the working condition classification information, analyzes each panel state according to the working conditions to be analyzed by using the panel analysis model to obtain working condition analysis results, and integrates the working condition analysis results to obtain the structural analysis results of the front panel. In this way, the analysis of each panel state under different working conditions to be analyzed is realized, the structural reliability analysis of the front panel is more comprehensive, and different situations and states can be covered.

[0112] In addition, the embodiment of the present application further provides a storage medium, and the storage medium stores a vehicle front panel structure analysis program. When the vehicle front panel structure analysis program is executed by a processor, the steps of the vehicle front panel structure analysis method described above are realized.

[0113] Since the storage medium adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0114] Reference Figure 4 , Figure 4 Fig. 1 is a structural block diagram of a first embodiment of a vehicle front panel structure analysis device according to the present application.

[0115] As Figure 4 shown, the vehicle front panel structure analysis device according to the embodiment of the present application comprises:

[0116] A model construction module 10 is configured to construct a panel analysis model according to model constraint information.

[0117] A state determination module 20 is configured to determine a plurality of panel states of the front panel according to the panel analysis model.

[0118] A structural analysis module 30 is configured to analyze according to each panel state and the panel analysis model according to working condition classification to obtain structural analysis results of the front panel.

[0119] The embodiment constructs a panel analysis model according to model constraint information, determines a plurality of panel states of the front panel according to the panel analysis model, and analyzes according to each panel state and the panel analysis model according to working condition classification to obtain structural analysis results of the front panel. In this way, the analysis according to the pre-constructed panel analysis model and each panel state of the front panel according to working condition classification is realized, and finally the structural analysis results of the front panel that has been designed and formed are obtained, so that the structural reliability of the front panel can be more effectively judged, the cost of the judgment process is reduced, and the effect is improved.

[0120] In an embodiment, the model construction module 10 is further configured to acquire model constraint information, determine work condition constraint information and work condition stress description information corresponding to a plurality of constraint work conditions according to the model constraint information, and construct a panel analysis model containing each constraint work condition according to the work condition constraint information and the work condition stress description information.

[0121] In an embodiment, the structure analysis module 30 is further configured to acquire work condition classification information, obtain a plurality of work conditions to be analyzed according to the work condition classification information, analyze each panel state according to the work conditions to be analyzed through the panel analysis model to obtain work condition analysis results, and integrate the work condition analysis results to obtain the structure analysis result of the front panel.

[0122] In an embodiment, the structure analysis module 30 is further configured to, when the work condition to be analyzed is a stress analysis work condition, acquire force point position information and point position pressure information corresponding to each panel state under the stress analysis work condition, formulate a stress analysis simulation strategy according to the force point position information and the point position pressure information, sequentially perform stress analysis of a static work condition, a limit work condition, a front panel mis-opening work condition and a front panel closing work condition of each panel state according to the stress analysis simulation strategy and the panel analysis model to obtain a plurality of work condition stress analysis results, and obtain a work condition analysis result according to each work condition stress analysis result.

[0123] In an embodiment, the structure analysis module 30 is further configured to, when the work condition to be analyzed is a deformation analysis work condition, set the panel state to be a normally closed and locked state in the panel analysis model, apply corresponding part self-gravity to each part of the front panel in the panel analysis model, and intercept a deformation displacement graph and a stress distribution graph, and obtain a work condition analysis result corresponding to the deformation analysis work condition according to the deformation displacement graph and the stress distribution graph.

[0124] In an embodiment, the structure analysis module 30 is further configured to, when the work condition to be analyzed is a pressing stiffness analysis work condition, set the panel state to be a normally closed and locked state in the panel analysis model, acquire stress surface information and pressure information, apply a specified pressure to a specified stress surface of the front panel in the panel analysis model according to the stress surface information and the pressure information, and intercept a pressing deformation displacement graph, and obtain a work condition analysis result corresponding to the pressing stiffness analysis work condition according to the pressing deformation displacement graph.

[0125] In an embodiment, the structure analysis module 30 is further configured to, when the to-be-analyzed working condition is a part vibration analysis working condition, set the panel state in the panel analysis model as a normal closed locking state and an abnormal closed locking state; apply unit excitation to each constraint point in the panel analysis model in the normal closed locking state to obtain a normal state excitation result; apply unit excitation to each constraint point in the panel analysis model in the abnormal closed locking state to obtain an abnormal state excitation result; and obtain a working condition analysis result corresponding to the part vibration analysis working condition according to the normal state excitation result and the abnormal state excitation result.

[0126] It should be understood that the above is only illustrative, and does not constitute any limitation on the technical solutions of the present application. In specific applications, those skilled in the art can set up according to the needs, and the present application does not limit this.

[0127] It should be noted that the above-described workflow is only illustrative and does not limit the scope of protection of the present application. In actual applications, those skilled in the art can select part or all of them to achieve the purpose of the embodiment according to the actual needs, which is not limited here.

[0128] In addition, technical details not described in detail in this embodiment can be referred to the vehicle front panel structure analysis method provided by any embodiment of the present application, which will not be repeated here.

[0129] In addition, it should be noted that in this paper, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or system. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0130] The above embodiment numbers of the present application are only for description, not representing the advantages and disadvantages of the embodiments.

[0131] Those skilled in the art can clearly understand the above-mentioned embodiment method can be realized by means of software and the necessary general hardware platform, of course, can also be through hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art contribution can be embodied in the form of software products, the computer software product is stored in a storage medium (such as read only memory (Read Only Memory, ROM) / RAM, disk, optical disk), including a number of instructions to make a terminal device (may be a mobile phone, computer, server, or network equipment, etc.) executes the method described in various embodiments of the present application.

[0132] The above is only the preferred embodiment of the present application, not therefore limit the patent scope of the present application, any equivalent structure or equivalent flow transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method of analyzing a vehicle front panel structure, characterized by, The vehicle front panel structure analysis method comprises: panel analysis model is constructed through model constraint information; a plurality of panel states of the front panel are determined according to the panel analysis model; working condition classification information is obtained; a plurality of to-be-analyzed working conditions are obtained according to the working condition classification information; when the to-be-analyzed working condition is a stress analysis working condition, force point position information and point position pressure information corresponding to each panel state under the stress analysis working condition are obtained; a stress analysis simulation strategy is formulated according to the force point position information and the point position pressure information; stress analysis of static working conditions, limit working conditions, front panel misoperation working conditions and front panel closed working conditions under each panel state is sequentially performed according to the stress analysis simulation strategy and the panel analysis model, so as to obtain a plurality of working condition stress analysis results; when the to-be-analyzed working condition is a deformation analysis working condition, the panel state is set as a normally closed locking state in the panel analysis model; self-gravity of each part of the front panel is applied in the panel analysis model, and a deformation displacement graph and a stress distribution graph are intercepted; working condition analysis results corresponding to the deformation analysis working condition are obtained according to the deformation displacement graph and the stress distribution graph; each working condition analysis result is integrated, so as to obtain a structure analysis result of the front panel.

2. The method of claim 1, wherein, The panel analysis model is constructed through model constraint information, comprising: model constraint information is obtained; working condition constraint information and working condition force explanation information corresponding to a plurality of constraint working conditions are determined according to the model constraint information; a panel analysis model containing each constraint working condition is constructed according to the working condition constraint information and the working condition force explanation information.

3. The method of claim 1, wherein, The analysis of each panel state according to the to-be-analyzed working condition through the panel analysis model to obtain working condition analysis results comprises: when the to-be-analyzed working condition is a pressing stiffness analysis working condition, the panel state is set as a normally closed locking state in the panel analysis model; force surface information and pressure information are obtained; a specified pressure is applied to a specified force surface of the front panel in the panel analysis model according to the force surface information and the pressure information, and a pressing deformation displacement graph is intercepted; working condition analysis results corresponding to the pressing stiffness analysis working condition are obtained according to the pressing deformation displacement graph.

4. The method of claim 1, wherein, The analysis of each panel state according to the to-be-analyzed working condition through the panel analysis model to obtain working condition analysis results comprises: when the to-be-analyzed working condition is a part vibration analysis working condition, the panel state is set as a normally closed locking state and an abnormally closed locking state in the panel analysis model; a unit excitation is applied to each constraint point in the panel analysis model in the normally closed locking state, so as to obtain a normally state excitation result; a unit excitation is applied to each constraint point in the panel analysis model in the abnormally closed locking state, so as to obtain an abnormally state excitation result; working condition analysis results corresponding to the part vibration analysis working condition are obtained according to the normally state excitation result and the abnormally state excitation result.

5. A vehicle front panel structure analysis apparatus characterized by comprising: The vehicle front panel structure analysis device comprises: a model construction module, configured to construct a panel analysis model through model constraint information; a state determination module, configured to determine a plurality of panel states of a front panel according to the panel analysis model; The structure analysis module is configured to analyze the front panel according to the panel state and the panel analysis model, and obtain a structure analysis result of the front panel. The structure analysis module is further configured to obtain working condition classification information, obtain a plurality of working conditions to be analyzed according to the working condition classification information, obtain force point position information and point position pressure information corresponding to each panel state under a stress analysis working condition when the working condition to be analyzed is the stress analysis working condition, formulate a stress analysis simulation strategy according to the force point position information and the point position pressure information, perform stress analysis of a static working condition, a limit working condition, a front panel error opening working condition and a front panel closing working condition in sequence according to the stress analysis simulation strategy and the panel analysis model, and obtain a plurality of working condition stress analysis results. When the working condition to be analyzed is a deformation analysis working condition, the panel state is set to a normally closed locking state in the panel analysis model. The self-gravity of each part of the front panel is applied in the panel analysis model, and a deformation displacement graph and a stress distribution graph are intercepted. A working condition analysis result corresponding to the deformation analysis working condition is obtained according to the deformation displacement graph and the stress distribution graph. The structure analysis results of each working condition are integrated to obtain the structure analysis result of the front panel.

6. A vehicle front panel structure analysis apparatus characterized by comprising: The device comprises a memory, a processor, and a vehicle front panel structure analysis program stored on the memory and executable on the processor, and the vehicle front panel structure analysis program is configured to implement the vehicle front panel structure analysis method according to any one of claims 1 to 4.

7. A storage medium, characterized by The storage medium stores a vehicle front panel structure analysis program, and the vehicle front panel structure analysis program is executed by the processor to implement the vehicle front panel structure analysis method according to any one of claims 1 to 4.

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