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Automatic simulation analysis system and method for vehicle dynamics based on ADAMS

A vehicle dynamics and simulation analysis technology, applied in the field of automatic simulation analysis of vehicle dynamics based on ADAMS, can solve problems such as omissions, high threshold for engineering designers, cumbersome analysis process, etc., to reduce errors, save manpower and material resources, improve Analyzing the Effects on Efficiency

Pending Publication Date: 2022-07-22
SHAANXI AUTOMOBILE GROUP
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AI Technical Summary

Problems solved by technology

[0003] Applying ADAMS software to carry out vehicle dynamics analysis requires a certain professional and theoretical background, which is a high threshold for engineering designers, which is not conducive to the guiding role of simulation technology in the early stage of product design
Even for CAE analysts, the analysis process of ADAMS software is cumbersome, including parameter input, selection of analysis conditions, setting of solver parameters, selection of output variables, processing data according to analysis specifications, drawing graphics, and compiling analysis reports, etc. Each operation needs to be simulated Engineers do it manually, which is time-consuming and labor-intensive, and it is easy to miss or enter some parameters incorrectly, which will affect the progress of product development

Method used

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  • Automatic simulation analysis system and method for vehicle dynamics based on ADAMS
  • Automatic simulation analysis system and method for vehicle dynamics based on ADAMS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 As shown, the ADAMS-based automated simulation and analysis system for vehicle dynamics includes:

[0052] The model building module is used to read the cmd file output by CATIA / SimDesigner, generate the vehicle dynamics model, and store it in the model library;

[0053] Automatically read the ADAMS / cmd format file output by CATIA / SimDesigner, complete the creation of the system communicator, generate the *.tpl file of each subsystem template of ADAMS, and then automatically generate the *.sub file;

[0054] Automatically read the MNF file output by the finite element software, and complete the replacement of the flexible body in the template;

[0055] Automatically select the subsystem to generate the ADAMS assembly file *.asy, and complete the creation of the vehicle dynamics model.

[0056] The parameter modification module is used to identify the key parameters in the model, receive the modified parameters and store them in the database;

[0057] Mo...

Embodiment 2

[0068] On the basis of Example 1, as figure 2 As shown, the automatic simulation analysis method of vehicle dynamics based on ADAMS, including

[0069] S1, according to the principle of creating multi-body dynamics model of the vehicle in ADAMS, decompose the vehicle into multiple functional subsystems, establish the geometric model and motion constraint relationship of each subsystem in CATIA / SimDesigner, and output the ADAMS / cmd format file;

[0070] The S1 includes:

[0071] S11, according to the function, decompose the whole vehicle system into multiple subsystems;

[0072] S12, build the geometric model of each subsystem component of the vehicle in CATIA software, and assemble it;

[0073] S13, impose constraints between components in CATIA / SimDesigner, and output them as ADAMS / cmd format files for ADAMS software to read;

[0074] S2, judge whether to consider the influence of component flexibility;

[0075] If the influence of component flexibility is considered, go...

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Abstract

The invention discloses a vehicle dynamics automatic simulation analysis system and analysis method based on an ADAMS, and the method comprises the steps: S1, decomposing a whole vehicle into a plurality of functional subsystems according to a whole vehicle multi-body dynamics model creation principle in the ADAMS; s2, judging whether the influence of the flexibility of the parts is considered or not, S3, reading an stp file by applying finite element analysis software, automatically completing grid division, solving and outputting an MNF file required by the ADAMS; s4, automatically establishing a vehicle dynamics model; s5, identifying a subsystem name in the ADAMS assembly file, and identifying key parameters and corresponding parameter values in a subsystem file; s6, parameters are modified, and related cmd commands are called to achieve batch modification of vehicle system parameters; s7, selecting analysis working conditions, and setting corresponding parameters; s8, setting solver parameters, and automatically calling an ADAMS solver to carry out parallel computing; s9, a solving result file is automatically read, data processing is carried out, and a graph is drawn; and S10, automatically generating an analysis report.

Description

technical field [0001] The invention belongs to the technical field of simulation, and in particular relates to an ADAMS-based automatic simulation analysis method and system for vehicle dynamics. Background technique [0002] Simulation analysis technology runs through the entire vehicle design process and has been widely used in vehicle dynamics, structural analysis, vibration and noise, and aerodynamics to improve performance. [0003] The application of ADAMS software to carry out vehicle dynamics analysis requires a certain professional and theoretical background, and the threshold for engineering designers is high, which is not conducive to the guiding role of simulation technology in the early stage of product design. Even for CAE analysts, the ADAMS software analysis process is cumbersome, including parameter input, selection of analysis conditions, setting of solver parameters, selection of output variables, processing data according to analysis specifications, draw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06Q10/10G06T19/20G06F111/04G06F119/10G06F119/14
CPCG06F30/15G06Q10/103G06T19/20G06F2111/04G06F2119/14G06F2119/10
Inventor 王伟任国涛何海浪蒲滔张永涛
Owner SHAANXI AUTOMOBILE GROUP
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