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Flexible plate assembly axial fatigue test method

A test method and technology of a fatigue testing machine are used in the field of axial fatigue testing of flexible plate assemblies, which can solve problems such as work damage and material plastic deformation.

Inactive Publication Date: 2008-12-17
CHERY AUTOMOBILE CO LTD
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  • Abstract
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Problems solved by technology

[0002] The flexible plate assembly is an important part connecting the crankshaft of the automobile engine and the hydraulic torque converter. This part can transmit power flexibly and withstand various axial movement and axial deformation, but often due to stress concentration, the material is plastically deformed and other reasons, resulting in damage and other phenomena during work
In the development process of the flexible plate assembly, how to accurately test and determine whether the strength of the flexible plate assembly meets the use requirements when it is subjected to axial movement and axial force, there is currently no systematic and effective test method in the industry

Method used

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  • Flexible plate assembly axial fatigue test method
  • Flexible plate assembly axial fatigue test method
  • Flexible plate assembly axial fatigue test method

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Embodiment Construction

[0013] Such as figure 1 As shown, the test adopts a microcomputer-controlled electro-hydraulic servo fatigue testing machine, and a displacement sensor 5, a load sensor 2 and a stress detector 10 are arranged on the microcomputer-controlled electro-hydraulic servo fatigue testing machine. The load sensor 2 is connected between the beams 4, and the displacement sensor 5 is installed on the actuator 1 of the testing machine. Install the flexible plate assembly 6 on the tooling 7 simulating the crankshaft with bolts, and the testing machine applies a sinusoidal alternating load to the flexible plate assembly, so that the flexible plate assembly performs reciprocating loading motion according to the required displacement.

[0014] Such as figure 1 , figure 2 As shown, the signals output by the displacement sensor, the load sensor and the stress detector are transmitted to the single-chip microcomputer U2, and the single-chip microcomputer outputs the signal, so that the externa...

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Abstract

The invention relates to a method for testing the axial fatigue of a flexible plate assembly, which can effectively test the axial fatigue resistance capability of the flexible plate assembly. The method adopts the technical proposal that the method for testing the axial fatigue of the flexible plate assembly is characterized in that a microcomputer is adopted in the test to control an electro-hydraulic servo fatigue testing machine; a displacement sensor, a load sensor and a stress detector are arranged on the electro-hydraulic servo fatigue testing machine controlled by the microcomputer; signals output through the displacement sensor, the load sensor and the stress detector are transferred to a single-chip microcomputer; the signals are output through the single-chip microcomputer, so that an externally connected display displays a load-time curve, a displacement-time curve and a stress-time curve.

Description

technical field [0001] The invention relates to a test method for axial fatigue of a flexible plate assembly. Background technique [0002] The flexible plate assembly is an important part connecting the crankshaft of the automobile engine and the hydraulic torque converter. This part can transmit power flexibly and withstand various axial movement and axial deformation, but often due to stress concentration, the material is plastically deformed and other reasons, resulting in damage and other phenomena during work. In the development process of the flexible plate assembly, how to accurately test and determine whether the strength of the flexible plate assembly meets the use requirements when it is subjected to axial movement and axial force, there is currently no systematic and effective test method in the industry . Contents of the invention [0003] The object of the present invention is to provide a test method for the axial fatigue of the flexible plate assembly, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/34
Inventor 张燕凤
Owner CHERY AUTOMOBILE CO LTD
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