Rotating Machine Fault Diagnosis Based on Optimal Morphological Filter and Local Tangent Space Alignment
Rotating Machine Fault Diagnosis Based on Optimal Morphological Filter and Local Tangent Space Alignment
复制标题
基于最优形态滤波器和局部切空间对齐的旋转机械故障诊断
DOI：
10.1155/2015/893504
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发表时间：
2015-09
影响因子：
1.6
通讯作者：
Baoping Tang
中科院分区：
文献类型：
--
作者：
Shaojiang Dong;Lili Chen;Baoping Tang
In order to identify the fault of rotating machine effectively, a new method based on the morphological filter optimized by particle swarm optimization algorithm (PSO) and the nonlinear manifold learning algorithm local tangent space alignment (LTSA) is proposed. Firstly, the signal is purified by the morphological filter; the filter’s structure element (SE) is selected by PSO method. Then the filtered signals are decomposed by the empirical mode decomposition (EMD) method, and the extract features are mapped into the LTSA to extract the character features; then the support vector machine (SVM) model is used to achieve the rotating machine fault diagnosis. The proposed method is evaluated by vibration signals measured from bearings with faults. Results show that the method can effectively remove the noise and extract the fault features, so the rotating machine fault diagnosis can be achieved effectively.
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