A whole-process damage identification and life prediction method and equipment for a floating friction plate

A damage identification and life prediction technology, applied in the application of repetitive force/pulsation force to test material strength, measurement device, design optimization/simulation, etc., can solve the problems of unstable detection signal, insufficient measurement range coverage, etc. performance, accurate analysis results

Active Publication Date: 2022-04-15
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The invention provides a method and equipment for the whole process damage identification and life prediction of the floating friction plate, which solves the problems of insufficient coverage of the measurement range in the contact measurement of the floating friction plate and unstable detection signals in the non-contact measurement

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  • A whole-process damage identification and life prediction method and equipment for a floating friction plate
  • A whole-process damage identification and life prediction method and equipment for a floating friction plate
  • A whole-process damage identification and life prediction method and equipment for a floating friction plate

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0043] In actual service, the floating friction plate will continue to suffer from strong random dynamic loads, which will easily cause microcracks on its surface. In the continuous service environment, the floating friction plate continues to suffer from strong random dynamic loads, resulting in the evolution of micro-cracks, and finally the formation of macro-cracks, and the fracture and failure of the floating friction plate. The whole process of crack init...

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Abstract

The invention provides a method and equipment for the whole process damage identification and life prediction of a floating friction plate. The steps of the method are as follows: the floating friction plate is operated in a simulated service environment; the in-plane deformation of the floating friction plate is measured non-contact by three-dimensional DIC technology and out-of-plane displacement images and data analysis to obtain the relationship between the complete damage accumulation item of the floating friction plate and the fatigue life prediction in the experiment; import the image information of the floating friction plate into the above relationship for damage identification and life prediction. The invention can measure the experimental state data of the floating friction plate in a non-contact manner, and at the same time pay attention to two factors that have a great influence on the data analysis of the floating friction plate, the in-plane deformation and the out-of-plane displacement, and improve the life prediction accuracy of the floating friction plate.

Description

technical field [0001] The invention belongs to the field of friction plate detection, and in particular relates to a method and equipment for the whole-process damage identification and life prediction of a floating friction plate. Background technique [0002] During the use of the floating friction plate, the working environment is harsh, and small cracks are easy to initiate in multiple parts of the friction plate. In the continuous service working environment, multiple small cracks in the floating friction plate will further expand and break suddenly, which will cause danger. Therefore, the full-process damage identification and life prediction of the floating friction plate are of great significance to the safe application of the equipment. [0003] For the detection of floating friction plates, the main method currently used is based on strain detection. There are two main ideas for strain detection, one is contact measurement, and the other is non-contact measuremen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G16C60/00G01N3/34G01N21/956G06F119/04
CPCG06F30/20G16C60/00G01N21/956G01N3/34G01N2203/0073G06F2119/04
Inventor 魏炳忱刘子尚胡铮张坤张万昊韩明张国洪戴国文许成法金孔杰王志涛
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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