Automotive body in white torsion rigidity test system and method thereof

A technology of torsional stiffness and testing system, which is applied in the field of static stiffness testing of automobile body-in-white, can solve problems such as increasing costs, affecting the testing process, and complicated operation, and achieves the effects of reducing stress, improving testing methods, and excellent versatility

Inactive Publication Date: 2012-05-16
SAIC MOTOR
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Problems solved by technology

[0007] The technical methods and devices disclosed in the above-mentioned patent documents all have relatively complex operations, poor versatility, and are not easy to quickly and accurately test, and usually need to be specially designed and tested for different vehicle models. Manufacture of special fixtures, which increases the cost and affects the test process, but also cannot guarantee the reliability and accuracy of the static stiffness test data of the body-in-white

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  • Automotive body in white torsion rigidity test system and method thereof
  • Automotive body in white torsion rigidity test system and method thereof
  • Automotive body in white torsion rigidity test system and method thereof

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Embodiment Construction

[0076] In a nutshell, in the torsional rigidity test system of the automobile body-in-white of the present invention, it mainly includes two major components, the restraint subsystem and the loading subsystem, so as to realize the functions of constraining the spatial position and applying loads to the body-in-white respectively, and in the attached Figure 1-8 The schematic map shows the basic structural composition of the above-mentioned constraint subsystem in a preferred embodiment of the system of the present invention, and in Figure 10 The overall composition of the loading subsystem is also exemplarily shown in the diagram, and these components and their composition will be described in detail below in conjunction with these drawings.

[0077] Please also see Figure 1 to Figure 5 , in the preferred embodiment above, the constraint subsystem includes a front suspension platform 1 and a rear suspension platform 2 . Such as figure 1 and figure 2 As shown, the front ...

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Abstract

The invention discloses an automotive body in white torsion rigidity test system. The system comprises: a constraint subsystem and a loading subsystem. The constraint subsystem comprises: a front suspension rack and a rear suspension rack. The loading subsystem comprises at least two power take-offs and a loading device. Through using an innovative improved design, the test system can carry out adaptive adjusting during a test process so that generation of stress can be reduced, versatility is good and test needs of different kinds of vehicle types can be satisfied. The invention also discloses a method for carrying out an automotive body in white torsion rigidity test by using the above test system. By using the method, the automotive body in white can be easily and rapidly leveled and ideal test data can be acquired. The test method of the automotive body in white torsion rigidity can be substantially improved. Compared to the other current test method, innovation improvements are realized in many aspects, such as the constraint processing, a position and a mode of load applying, collection of the test data and determination and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of static stiffness testing of automobile body-in-white, in particular to a torsional rigidity testing system and method of automobile body-in-white. The automobile includes but not limited to passenger cars. 【Background technique】 [0002] The static stiffness index of the automobile body-in-white generally includes bending stiffness and torsional stiffness. The bending stiffness of the body-in-white can be measured by the deformation of the front and rear of the body-in-white. Therefore, the static stiffness of the automobile body-in-white is an important index to evaluate the reliability of the vehicle design and the safety performance of the vehicle, and the analysis of the torsional stiffness and bending stiffness of the automobile body-in-white is an essential key link in the development and design of the vehicle one. [0003] According to the search, the patent documents related to the static stif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 于瑞贺高丽萍姚烈龚红兵梅爱群孙成智王光耀叶永亮羊军张琦
Owner SAIC MOTOR
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