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Centering method for rod crash test

A technology of light beam and datum, applied in the field of column impact test

Active Publication Date: 2012-08-22
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In order to overcome the defects of cumbersome operation and large error in the existing centering method of automobile pole impact test, the present invention provides a more intuitive, more accurate and more efficient Alignment method for column impact test

Method used

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  • Centering method for rod crash test
  • Centering method for rod crash test

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 and figure 2 As shown, a method for centering the pole impact test needs to use the laser instrument 2 with adjustable light-emitting head deflection to cooperate with the existing pole impact test equipment. The diameter of the pole impact test used in this pole impact test is 0.245 meters. The supporting device 4 is fixed on the vertical planar rigid wall 3 . The carrier vehicle 5 runs on the ground track 7 perpendicular to the rigid wall 3, and can be far away from or close to the ram. The carrier vehicle is equipped with a test vehicle 6. The body of the test vehicle 6 is parallel to the rigid wall 3, and the side of the vehicle body faces the ram 1. A test dummy is provided in the car 6 . The method for centering the column impact test comprises the following steps:

[0023] A. Two laser devices are arranged symmetrically at the back position on both sides of the ram;

[0024] B. Respectively adjust the direction of the beam emitted...

Embodiment 2

[0042] The specific method of step B is: reduce the lighting brightness of the test site, spray aerosol around the lance, because the aerosol particles can reflect light, so the path of the laser beam can be displayed, adjust the beam and constantly observe the adjustment effect with the naked eye. Once done, fix the position of the laser.

[0043] Then perform step C, the specific method is: hold a piece of flat white paper and hang it down near the intersection of the light beams that you can see visually, try to make the white paper parallel to the rigid wall 3, then you can see the light spots formed by the light beam on the white paper , according to the overlap degree of the two light beams on the white paper, the white paper is properly translated back and forth until the light spots on the paper overlap. Refer to the final position of the white paper, and mark the position of the beam intersection on the ground.

[0044] Finally, step D is executed, which specif...

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Abstract

The invention discloses a centering method for rod crash test, which comprises the following steps that: A, two laser instruments are symmetrically arranged at positions which are close to the rear side of the two sides of a collision rod; B, the directions of beams which are emitted by the laser instruments are respectively adjusted to make the beams be tangent to the cambered surface of the collision rod of the corresponding side; C, the intersection point position of the beams is determined; and D, the position of a test car is adjusted, so that the mass center of a dummy head part in the car is superposed with the intersection point of the beams. The invention aims to provide the centering method for rod crash test, which is more intuitive and accurate and has higher efficiency.

Description

technical field [0001] The invention relates to an automobile test debugging method, more specifically, it relates to a column impact test centering method. Background technique [0002] At present, tests or inspections in many technical fields need to be centered and debugged before they are formally carried out. For example, the invention with the notification number CN101329282B disclosed a radiation source and detector for nondestructive testing of large components on March 9, 2011. The centering method, the steps are as follows: (A) Roughly center the radiation source and the detector; (B) Rotate the centering shielding pattern to the shielding position; (C) Check the position of the shielding pattern after imaging; (D) Adjust the radiation The position of the source to the occlusion pattern is within a certain imaging error, and the centering is completed. The invention realizes the accurate centering of the radiation source and the detector in the application of non-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08G01M17/007
Inventor 光玲玲肖海涛王桃英初永平王纯刘卫国吴成明赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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