Research of the Fault Feature Extraction of Rolling Bearing based on Image Processing

Zhang Qiantu; Fang Liqing

doi:10.16578/j.issn.1004.2539.2015.05.013

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Research of the Fault Feature Extraction of Rolling Bearing based on Image Processing

更新时间：2022-10-20

- Research of the Fault Feature Extraction of Rolling Bearing based on Image Processing
- Vol. 39, Issue 5, Pages: 42-45(2015)
- 作者机构：
  
  1. 军械工程学院火炮工程系
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2015.05.013
  CLC：
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[1]张前图,房立清.基于图像处理的滚动轴承故障特征提取研究[J].机械传动,2015,39(05):42-45.

Zhang Qiantu, Fang Liqing. Research of the Fault Feature Extraction of Rolling Bearing based on Image Processing. [J]. 39(5):42-45(2015)
[1]张前图,房立清.基于图像处理的滚动轴承故障特征提取研究[J].机械传动,2015,39(05):42-45. DOI： 10.16578/j.issn.1004.2539.2015.05.013.

Zhang Qiantu, Fang Liqing. Research of the Fault Feature Extraction of Rolling Bearing based on Image Processing. [J]. 39(5):42-45(2015) DOI： 10.16578/j.issn.1004.2539.2015.05.013.

摘要

特征提取是故障诊断的关键环节,现有的时域、频域和时频域特征提取方法虽然有效,但在新领域寻找特征提取方法也十分必要。在分析SDP（Symmetrized Dot Pattern）方法得到雪花图像特点的基础上,提出了基于图像处理的滚动轴承故障特征提取方法。首先通过SDP方法将原始振动信号转换成极坐标下的雪花图像;然后采用图像处理技术提取出滚动轴承各故障状态雪花图像的形状特征,并对特征参数进行分析;最后通过建立BP网络进行故障模式识别,验证了该故障特征提取方法的有效性。

Abstract

The feature extraction is crucial for fault diagnosis,although the existing feature extraction methods in time domain,frequency domain and time-frequency domain are effective,it is also necessary to find new methods in other domain.On the basis of the characteristic of snow images generated by analyzing SDP（Symmetrized Dot Pattern）method,a feature extraction method based on image processing are put forward.Firstly,the original vibration signals are transformed into snow images in polar coordinate by SDP method.Then,the shape features of the snow images in different fault pattern of rolling bearing are extracted by using image processing technology,and the characteristic parameters are analyzed.Finally,BP network are created to realize fault pattern recognition.The experimental results show that this method is effective.

关键词

图像处理滚动轴承SDP特征提取

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