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Content Provider | IET Digital Library |
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Author | Hu, Yongtao Dong, Mingru Wang, Guozhu Fan, Zheng Zhang, Shuqing |
Abstract | A new method of bearing fault diagnosis based on multi-masking empirical mode decomposition (MMEMD) and extreme machine learning optimised by differential evolution algorithm (DE_ELM) is proposed in this study. MMEMD is an improvement of empirical mode decomposition (EMD). By adding masking signals to the signals to be decomposed in different levels, MMEMD can restrain low-frequency components from mixing in high-frequency components effectively in the sifting process and then suppress the mode mixing. Differential evolution algorithm is applied to determine the parameters of ELM for improving the classification accuracy. The four parameters are determined at one time by uniformly coded as the individuals of the differential evolution algorithm. To achieve the bearing fault diagnosis, the fault signals are first decomposed into different intrinsic mode functions (IMFs) and the sample entropy of each IMF was calculated as the fault feature. Then the fault feature was divided into training set and testing set. Input the training set to the DE_ELM to obtain the fault classification model. Finally, the testing set was put into the model for fault diagnosis. The experiment and wind turbine bearing fault diagnosis results show that the method could identify the different bearing faults with high reliability and accuracy. |
Starting Page | 9152 |
Ending Page | 9156 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 23, Dec (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/23 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9206 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-03-25 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Civil And Mechanical Engineering Computing Data Handling Technique DE_ELM Differential Evolution Algorithm Digital Signal Processing Entropy Evolutionary Computation Extreme Machine Learning Fault Classification Model Fault Diagnosis Fault Feature Fault Signal Feedforward Neural Network High-frequency Component Hilbert Transform Integral Transforms Intrinsic Mode Function Knowledge Engineering Technique Learning in AI Low-frequency Component Machine Bearings Maintenance And Reliability Masking Signal Mechanical Component Mechanical Engineering Application of IT Mechanical Engineering Computing MMEMD Multimasking Empirical Mode Decomposition Neural Computing Technique Numerical Analysis Optimisation Optimisation Technique Pattern Classification Sample Entropy Signal Processing Signal Processing And Detection Wind Power Plant Wind Turbine Wind Turbine Bearing Fault Diagnosis |
Content Type | Text |
Resource Type | Article |
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