Automobile body-in-white overall static stiffness test method

A test method, body-in-white technology, applied in the automotive field, can solve problems such as insufficient test content

Inactive Publication Date: 2018-10-09
JIANGLING HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, an embodiment of the present invention proposes a method for testing the overall static stiffness of an automobile body-in-white to solve the problem that the test content in the prior art is not comprehensive enough

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  • Automobile body-in-white overall static stiffness test method
  • Automobile body-in-white overall static stiffness test method
  • Automobile body-in-white overall static stiffness test method

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0032] see figure 1 , the method for testing the overall static stiffness of an automobile body-in-white proposed by an embodiment of the present invention is characterized in that it includes a static vertical bending stiffness test, a torsional stiffness test and a transverse bending stiffness test.

[0033] The static vertical bending sti...

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Abstract

The invention discloses an automobile body-in-white overall static stiffness test method. The method comprises the static vertical bending stiffness test, the torsion stiffness test and the transversebending stiffness test, wherein the static vertical bending stiffness test involves applying restraints at a front suspension point and a rear suspension point of the body-in-white body, applying concentrated and distributed loads on the body, measuring deflection of a longitudinal beam and a threshold beam and calculating bending stiffness, the torsion stiffness test involves applying restraintsat the front suspension point and the rear suspension point of the body-in-white body, applying torque at the front suspension point or the rear suspension point, measuring deformation of the longitudinal beam and the threshold beam and calculating a torsion angle and torsion stiffness, and the transverse bending stiffness test involves applying restraints at the front suspension point and the rear suspension point of the body-in-white body, applying loads at the front longitudinal beam, the threshold beam or the rear longitudinal beam, measuring deformation and calculating transverse stiffness. The method is advantaged in that the test content coverage scope is wide, the overall static stiffness of the body-in-white body can be tested more comprehensively, and requirements of high quality cars can be better satisfied.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for testing the overall static stiffness of an automobile body-in-white. Background technique [0002] With the rapid development of the economy and the automobile industry, people's living standards have been rapidly improved, and automobiles have gradually become the means of travel for ordinary families. In the automobile production process, the overall static stiffness test of the body-in-white is based on the electric servo loading system as the main body and the auxiliary mechanism to realize the overall static stiffness performance test of the body-in-white, providing support for the overall static stiffness design and verification test of the body-in-white. [0003] At present, although the road conditions are getting better and better, the load-bearing of the car body is getting bigger and bigger, the speed of the car is getting higher and higher, the handli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00G01M17/007
CPCG01M5/00G01M17/007
Inventor 方惺生
Owner JIANGLING HLDG
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