Line drawing method for automobile pedestrian protection finite element analysis

A pedestrian protection and finite element technology, which is applied in the marking field of pedestrian protection finite element analysis, can solve the problems of cumbersome marking methods, time-consuming, low efficiency, etc., and achieve the effect of simplifying marking work and improving marking efficiency

Inactive Publication Date: 2013-11-20
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The traditional marking method is cumbersome, time-consuming and inefficient

Method used

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  • Line drawing method for automobile pedestrian protection finite element analysis
  • Line drawing method for automobile pedestrian protection finite element analysis
  • Line drawing method for automobile pedestrian protection finite element analysis

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Embodiment Construction

[0036] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0037] Such as Figure 1 to Figure 5 The scribing method of the present invention expressed is a scribing method for finite element analysis of pedestrian protection of automobiles. In order to solve the problems existing in the current known technology described in the background technology part of this specification and overcome its defects, and realize the invention goal of improving the marking efficiency of pedestrian protection finite element analysis, the technical solution adopted by the present invention is:

[0038] Such as Figure 1 to Figure 5 Shown, the scribing method of the pedestrian protection finite element analy...

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Abstract

The invention discloses a line drawing method for automobile pedestrian protection finite element analysis. The line drawing method includes the following types: a bar is attached to the surface of an automobile and moves to form tracks, according to the tracks, a side face datum line, an engine shell front edge datum line, a bumper upper portion datum line, a bumper lower portion datum line and the like are formed, and according to the type of the line drawing method, a point of tangency is determined in the method that the shortest distance is calculated; a flexible measuring tape of a certain length is attached to the surface of the automobile to form an envelope line; a ball of a certain diameter keeps in contact with front windshield glass, and according to tracks formed by contact points of the ball and the front structure of the automobile, an engine shell back side datum line is drawn. According to each type of the line drawing method, a corresponding specific scheme is obtained and then is developed into computer software, a whole vehicle model is input into the computer software for computation during use, and a line drawing file is output in the mode of a K file. According to the technical scheme, line drawing operations for the pedestrian protection finite element analysis are simplified, line drawing efficiency is improved, and the line drawing method is quick, precise and convenient.

Description

[0001] Original application number: 201210023648.1 [0002] Date of original filing: February 3, 2012 technical field [0003] The invention belongs to the technical field of automobile safety, and relates to the pedestrian protection technology of automobiles. More specifically, the invention relates to a scribing method for finite element analysis of pedestrian protection of automobiles. Background technique [0004] Pedestrian protection is becoming increasingly important in the field of automotive safety. When conducting finite element analysis of pedestrian protection, it is necessary to do linework first to determine the collision area. [0005] Such as figure 1 with figure 2 As shown, it is the marking line stipulated in the EuroNCAP standard, including the side reference line 1, the envelope line 2, the front edge reference line 3 of the hair cover, the bumper upper reference line 4 and the bumper lower reference line 5. [0006] The traditional marking method i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 陈傲东
Owner CHERY AUTOMOBILE CO LTD
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