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Car side door overall rigidity analysis and loading point locating method

A technology of stiffness analysis and positioning method, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of inconsistent understanding of analysts, deviation of loading point position, manual definition, etc., to achieve simple calculation principles and avoid errors. , to achieve the effect of automation

Active Publication Date: 2016-12-07
CHERY AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

[0003] In the existing side door stiffness analysis guide, the location of the loading point is determined manually by the analyst through text description. This approach has two disadvantages. First, the inconsistency of understanding by different analysts will lead to deviations in the location of the loading point , thus causing errors in the results; Second, the efficiency is low, analysts need to manually define the location of the loading point

Method used

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  • Car side door overall rigidity analysis and loading point locating method
  • Car side door overall rigidity analysis and loading point locating method
  • Car side door overall rigidity analysis and loading point locating method

Examples

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Embodiment approach

[0052] figure 1 Is the overall schematic diagram of the positioning of the loading point for the side door stiffness analysis.

[0053] The present invention can be embedded in the finite element software HYPERMESH commonly used in the automobile industry through the TCL language. The finite element software reads the coordinate values ​​of all nodes in the model, and compares the value of the value through the built-in function library, and screens out the maximum value of the Z coordinate as the base point of the uppermost corner; and then obtains the minimum value of the Z coordinate and the maximum value of the X coordinate Value, create the base point of the bottom corner; take the Y coordinate of the base point of the top corner as the base point of the projection surface, and use Y as the normal direction to determine the plane where the projection surface is located; on the plane where the projection surface is located, take the base point of the top corner and the bas...

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Abstract

The invention discloses a car side door overall rigidity analysis and loading point locating method. The method comprises the following steps of 1, selecting a basic point; 2, creating a projection surface; 3, creating a central line; 4, determining a window frame middle rigidity loading point; 5, determining a window frame extrusion rigidity loading point; and 6, determining a window frame topmost corner rigidity loading point. With the adoption of the technical scheme, the locating method for a determined side door rigidity loading point can provide a side door finite element according to an analyst, and accurately search for the positions of the window frame middle rigidity, window frame extrusion rigidity and topmost corner rigidity loading points, so that errors caused by manual operation are avoided; and a calculation principle is simple and clear, the feasibility of writing by software is very high, and the calculation principle can be easily embedded into finite element software, so that the automation of an analytic process is realized and the working efficiency of analysts is improved.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing technology, and relates to automobile door detection technology. More specifically, the present invention relates to a method for locating the overall rigidity loading point of an automobile side door. Background technique [0002] The overall stiffness of the car side door reflects the ability of the side door to resist deformation. The quality of side door stiffness directly affects user experience and is a key indicator of side door performance. The stiffness analysis of the side door is an important means to test the quality of the side door stiffness, and in the analysis of the overall stiffness of the side door, the selection of the location of the loading point is a key factor affecting the results. [0003] In the existing side door stiffness analysis guide, the location of the loading point is determined manually by the analyst through text description. This approach ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 王昌胜
Owner CHERY AUTOMOBILE CO LTD
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