Body-in-white torsional fatigue testing system and method thereof

A torsional fatigue and testing system technology, applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve the problems of sheet metal parts and solder joints prone to fatigue, seam welding, and solder joint open welding, etc.

Inactive Publication Date: 2013-02-27
BEIJING AUTOMOBILE RES GENERAL INST
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Problems solved by technology

It has been proved by practice that sheet metal parts and solder joints of automobile body-in-white are most prone to fatigue under torsion conditions. When the fatigue life of sheet metal parts and solder joints is lower than the standard requirements, sheet metal parts will crack, seam welding, The phenomenon of open welding of solder joints will reduce the service life of the car, and there are serious hidden dangers to the driver's life safety.

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  • Body-in-white torsional fatigue testing system and method thereof

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Embodiment Construction

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0036] The body-in-white torsional fatigue test system provided by the present invention mainly includes two major components: a constraint subsystem and a loading subsystem. The function of the body to apply loads.

[0037] Specifically, such as figure 1 As shown, the constraint subsystems in the body-in-white torsional fatigue test system provided in this embodiment include:

[0038] a front shock absorber seat pedestal 200, used to support the first end of the body-in-white 100, and can drive the body-in-white 100 to twist; and,

[0039] A rear shock absorber seat pedestal 300 is used to support the second end of the body in white 100 .

[0040] And as figure 1 As shown, the loading subsystem in the body-in-w...

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Abstract

The invention provides a body-in-white torsional fatigue testing system and a method thereof. The body-in-white torsional fatigue testing system comprises a constraint subsystem and a loading subsystem, wherein the constraint subsystem comprises a front shock absorber bearing rack for supporting a first end of a body-in-white and driving the body-in-white to generate torsion, and a rear shock absorber bearing rack for supporting a second end of the body-in-white; and the loading subsystem is used for loading the front shock absorber bearing rack so as to drive the body-in-white to generate the torsion. According to the body-in-white torsional fatigue testing system and the body-in-white torsional fatigue testing method provided by the invention, the fatigue state of the body-in-white of an automobile under a torsional working condition can be very easily and rapidly tested, including data such as fatigue life of metal plate and cracked welding spots; and the testing method on the torsional fatigue property of the body-in-white is substantially improved.

Description

technical field [0001] The invention relates to the technical field of fatigue testing of automobile body-in-white sheet metal and solder joints, in particular to a torsional fatigue testing system and method for automobile body-in-white. Background technique [0002] The fatigue durability of automobile body-in-white is an important index to evaluate the performance of the whole vehicle, and it is also an important parameter to measure the quality of the automobile. It has been proved by practice that sheet metal parts and solder joints of automobile body-in-white are most prone to fatigue under torsion conditions. When the fatigue life of sheet metal parts and solder joints is lower than the standard requirements, sheet metal parts will crack, seam welding, The phenomenon of open welding of solder joints reduces the service life of the car, and there is also a serious hidden danger to the life safety of the driver. Therefore, the torsional fatigue performance of automobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 张立玲刘明卓
Owner BEIJING AUTOMOBILE RES GENERAL INST
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