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Bracket simulation analysis method and system

A simulation analysis and bracket technology, applied in the automotive field, can solve problems affecting bracket production and inaccurate simulation analysis results, and achieve the effects of improving design and simulation efficiency, accurate characterization, and reducing the number of design changes and simulation times

Pending Publication Date: 2021-02-09
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology

[0004] The present invention provides a bracket simulation analysis method and system to solve or partially solve the technical problems that the result of simulation analysis is inaccurate and affects the actual production of brackets

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  • Bracket simulation analysis method and system

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Embodiment Construction

[0047] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0048] see figure 1 , the embodiment of the present invention discloses a bracket simulation analysis method, comprising the following steps:

[0049] In step 101, a point-to-point rigid constraint modeling method is used to establish a finite element model of the sheet metal part in the bracket.

[0050] Specifically, there is a welding relationship between many sheet metal parts of the bracket, but because the shell element of the existing modeling considers the thickness factor, the use of point-to-point common node modeling when establishing welds will cause sheet metal bending, which cannot reflect The original geometric features and assembly relations. In order to avoid this, thi...

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Abstract

The invention discloses a bracket simulation analysis method and system. The method comprises the steps: firstly, building a finite element model of a sheet metal part in a bracket in a point-to-pointrigid constraint modeling mode, and avoiding the construction of a common node unit, thereby guaranteeing that the geometrical characteristics and assembly relation of the sheet metal part do not affect each other; and secondly, when finite element simulation analysis is carried out according to the sheet metal part finite element model, due to the fact that rigid constraints are established forall the nodes in the sheet metal part before, accurately representing the relative relation between the sheet metal parts. Therefore, the deformation cannot be generated, and the strain distribution of the sheet metal part can be accurately reflected. According to the sheet metal part and the design method thereof, the arrangement direction of the reinforcing ribs of the sheet metal part is determined according to the strain distribution of the sheet metal part, so that the change direction, such as the arrangement direction and form of the reinforcing ribs, is accurately pointed out, accurateguidance is provided for design engineers, the design change frequency and simulation frequency are reduced, and the design and simulation efficiency is improved.

Description

technical field [0001] The present application relates to the field of automobile technology, in particular to a bracket simulation analysis method and system. Background technique [0002] The front bracket is an important part of the chassis system of the car. Its main function is to connect the undermount of the engine, integrate the suspension system components such as the triangular arm, the stabilizer bar, the steering gear, etc. The front bracket functions to isolate tire noise and road vibration. The introduction of the front bracket improves the driving comfort. However, due to the large number of connected parts, it introduces complex working conditions in the vehicle operating environment, so that the design complexity of the bracket components increases and the process difficulty increases. Therefore, before the bracket is designed, the bracket is generally simulated and analyzed to give suggestions for modification and optimization in combination with material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23G06F119/14
CPCG06F30/15G06F30/23G06F2119/14
Inventor 徐筱林陈旷詹双喜
Owner DONGFENG MOTOR CORP HUBEI
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