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Method for performing CAE (Computer Aided Engineering) analysis on sinking stiffness of roof cover of vehicle body

A roof and stiffness technology, applied in the field of computer-aided engineering, can solve the problems of complicated operation and high labor cost for the anti-concave stiffness of the body roof, and achieve the effects of shortening the development cycle, reducing labor costs, and standardizing the results.

Inactive Publication Date: 2015-04-29
BRILLIANCE AUTO
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  • Abstract
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Problems solved by technology

[0004] The invention solves the problem that the traditional method of using CAE technology to analyze the anti-concave stiffness of the roof of the vehicle body is cumbersome to operate, resulting in high labor costs

Method used

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  • Method for performing CAE (Computer Aided Engineering) analysis on sinking stiffness of roof cover of vehicle body
  • Method for performing CAE (Computer Aided Engineering) analysis on sinking stiffness of roof cover of vehicle body

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] refer to figure 1 The flowchart shown and figure 2 A schematic diagram of the roof model, the method provided in this embodiment for performing CAE analysis on the anti-sag stiffness of the roof of the vehicle body includes:

[0030] Step 101: building a roof model, the roof model has three roof bars;

[0031] Step 102: Establish a three-dimensional coordinate system on the top cover model, so that the X axis is parallel to the longitud...

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Abstract

The invention relates to the technical field of CAE (Computer Aided Engineering), and provides a method for performing CAE analysis on the sinking stiffness of a roof cover of a vehicle body. The method comprises the following steps of determining the positions and the number of loading points on a roof cover model; performing loading testing on each loading point to obtain a statistical result; drawing a displacement-loading curve, judging whether the sinking stiffness of the roof cover model meets a requirement or not according to loading magnitude, displacement and the slope of the curve, and regenerating a roof cover model if the sinking stiffness of the roof cover model does not meet the requirement. According to the method for performing CAE analysis on the sinking stiffness of the roof cover of the vehicle body, the loading points are automatically selected and analyzed, so that time is saved, a standard result can be obtained, comparison between multiple measurement results of the same vehicle body and measurement results of different vehicle types is facilitated, greater convenience is brought to an engineer, and the project development cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of computer-aided engineering (CAE), in particular to a method for performing CAE analysis on the anti-dent stiffness of the roof of the vehicle body, that is, to analyze the anti-dent stiffness of the roof of the vehicle body by using the CAE technology. Background technique [0002] The anti-dent rigidity of the roof cover is an important index, that is, the anti-dent performance. Insufficient anti-dent performance will lead to dents on the roof of passenger cars under the impact of hail or stones, which not only affects the subjective evaluation of customers, but is also closely related to vehicle safety and ride comfort. The CAE analysis of the anti-dent stiffness of the roof is an important link to prevent the stiffness defects of the roof. [0003] The traditional method of using CAE technology to analyze the anti-concave stiffness of the car body roof is: first, use ANSA and other CAE pre-processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘建平梁宇乔鑫孔繁华
Owner BRILLIANCE AUTO
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