ROLLING BEARING FAULT DIAGNOSIS BASED ON UNIFORM DISTANCE LOCAL LINEAR EMBEDDING (MT)

GU Ye; CAI HouDao

doi:10.16579/j.issn.1001.9669.2022.06.07

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ROLLING BEARING FAULT DIAGNOSIS BASED ON UNIFORM DISTANCE LOCAL LINEAR EMBEDDING (MT)

更新时间：2023-06-09

- ROLLING BEARING FAULT DIAGNOSIS BASED ON UNIFORM DISTANCE LOCAL LINEAR EMBEDDING (MT)
- Journal of Mechanical Strength Issue 6, Pages: 1315-1320(2022)
- 作者机构：
  
  1. 江西机电职业技术学院机械工程学院
  2. 江西科技大学智能工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.06.07
  CLC：
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GU Ye, CAI HouDao. ROLLING BEARING FAULT DIAGNOSIS BASED ON UNIFORM DISTANCE LOCAL LINEAR EMBEDDING (MT). [J]. Journal of Mechanical Strength (6):1315-1320(2022)
DOI：

GU Ye, CAI HouDao. ROLLING BEARING FAULT DIAGNOSIS BASED ON UNIFORM DISTANCE LOCAL LINEAR EMBEDDING (MT). [J]. Journal of Mechanical Strength (6):1315-1320(2022) DOI： 10.16579/j.issn.1001.9669.2022.06.07.

摘要

针对局部线性嵌入(Local Linear Embedding, LLE)的降维效果受样本分布均匀与否的影响较大这一不足，设计均匀化距离对LLE中的欧氏距离进行替换，由此提出均匀化距离局部线性嵌入(Uniform Distance Local Linear Embedding, UDLLE)方法，并通过典型曲线对UDLLE的有效性进行了验证。在此基础上，提出基于UDLLE的滚动轴承故障诊断方法，并进行诊断实例验证。试验结果表明，UDLLE方法获得了比其他一些方法更为有效的低维特征，降低了后续诊断的难度，提高了故障诊断的精度。

Abstract

In view of the shortcoming that the dimensivity reduction effect of local linear embedding（LLE） is greatly affected by the uniformity of sample distribution, the uniform distance is designed to replace the Euclidean distance in LLE, so the uniform distance local linear embedding（UDLLE） method is proposed, and the effectiveness of UDLLE is verified by typical curves. On this basis, a rolling bearing fault diagnosis method based on UDLLE was proposed, and the diagnosis example was verified. The experimental results show that UDLLE can obtain more effective low-dimensional features than some other methods, reduce the difficulty of subsequent diagnosis and improve the fault diagnosis accuracy.

关键词

局部线性嵌入均匀化距离滚动轴承故障诊断

Keywords

Local linear embeddingUniform distanceRolling bearingFault diagnosis

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