System and method for realizing order analysis of rotation axis using visual composite position-sensing stripes

An order analysis, rotating shaft technology, applied in the direction of using optical devices, mechanical bearing testing, mechanical component testing, etc., can solve the problem that the three-dimensional vibration signal cannot be obtained directly, and it is difficult to obtain the signal, and achieves low cost and high measurement efficiency. , cost saving effect

Active Publication Date: 2022-07-05
FUZHOU UNIV
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Problems solved by technology

In some cases, the three-dimensional vibration signals of the shaft are not directly available or difficult to obtain due to limitations in the measurement technology or the environment

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  • System and method for realizing order analysis of rotation axis using visual composite position-sensing stripes
  • System and method for realizing order analysis of rotation axis using visual composite position-sensing stripes
  • System and method for realizing order analysis of rotation axis using visual composite position-sensing stripes

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[0063] In order to make the features and advantages of this patent more obvious and easy to understand, the following specific examples are given and described in detail as follows:

[0064] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0065] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that The...

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Abstract

The present invention proposes a system and method for realizing the order analysis of a rotating shaft by using visual composite position-sensing stripes. A high-speed camera is used as the detector to obtain the image sequence of the composite position-sensing fringes. Using the proposed image processing algorithm, the time-domain three-dimensional vibration and rotational angular displacement signals can be obtained simultaneously. In order to realize the simultaneous measurement of three-dimensional displacement and rotation angle, it is suitable for order analysis. Compared with the traditional system based on three eddy current sensors and one rotation angle sensor, the efficiency and robustness of the system are improved. Therefore, the proposed composite position-aware fringe and vision-based system can be used for rotating shaft condition monitoring and fault detection in practical engineering applications.

Description

technical field [0001] The invention belongs to the technical fields of machine vision and vibration measurement, and in particular relates to a system and method for state monitoring and fault diagnosis of rotating machinery by using visual composite position-sensing stripes to realize order analysis of rotating shafts. Background technique [0002] The acceleration and deceleration of the rotating shaft lead to obvious non-stationary changes in its rotational speed and vibration signal, which brings great difficulties to the fault diagnosis of rotating machinery. Shaft vibration signals contain important information for condition monitoring and fault diagnosis of rotating machinery. However, rotating machinery always operates at variable speed, which brings enormous difficulties to signal analysis using stationary signal analysis methods. In response to this problem, researchers developed order analysis, which has become one of the effective methods for bearing, gearbox, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M13/021G01M13/028G01M13/045G01M13/04G01H9/00G01B11/26G01B11/00
CPCG01M13/00G01M13/021G01M13/028G01M13/045G01M13/04G01H9/00G01B11/26G01B11/002
Inventor 范文伯钟剑锋刘陈正罗智威吴墡淇
Owner FUZHOU UNIV
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