Scribing method of pedestrian protection finite element analysis of car

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: 2012-07-25
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

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

Method used

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  • Scribing method of pedestrian protection finite element analysis of car
  • Scribing method of pedestrian protection finite element analysis of car
  • Scribing method of pedestrian protection finite element analysis of car

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Embodiment Construction

[0034] 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.

[0035] 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:

[0036] 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 scribing method of pedestrian protection finite element analysis of a car. The scribing method comprises the following three types: fitting the surface of the car by a rod and moving the formed track to form datum lines of the side surface, the front edge of an engine hood, the upper part of a bumper, the lower part of the bumper and the like, and determining a tangent point through a method of calculating the closest distance by this type of scribing; fitting envelope curves formed on the surface of the car by a flexible tape with a certain length; and keeping contact with a piece of front windshield glass by a ball with a certain diameter, and scribing the rear datum line of the engine hood by the track formed by a contact point of the ball and the front structure of the car. Corresponding specific scheme is obtained by each type, and the technical scheme is programmed to obtain computer software. When in use, a whole car model is input to the computer software for calculating and a scribing file is output in a mode of K file. With the adoption of the technical scheme, scribing work of pedestrian protection finite element analysis is simplified, the scribing efficiency is improved, and the scribing is fast, accurate and convenient.

Description

technical field [0001] 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 [0002] 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. [0003] Such as figure 1 and figure 2 As shown, it is the marking line stipulated in the Euro NCAP standard, including side reference line 1, envelope line 2, hair cover front edge reference line 3, bumper upper reference line 4 and bumper lower reference line 5. [0004] The traditional marking method is to import the vehicle model into the CATIA software, and manually draw the line in the software according to the relevant standard...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 陈傲东
Owner CHERY AUTOMOBILE CO LTD
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