Marine motor fault diagnosis based on CEEMDAN and BRECAN under strong noise conditions

电机状态	电机转速/（$r \cdot {\min ^{ - 1}}$）	样本量	分类标签
正常电机	2 000	125	0
转子不平衡	2 000	125	1
转子偏心	2 000	125	2
转子弯曲	2 000	125	3
轴承故障	2 000	125	4
转子断条	2 000	125	5
匝间短路	2 000	125	6
缺相	2 000	125	7

Table 2. The \begin{document}$\alpha $\end{document} values of various levels of IMF
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Table 2. The \begin{document}$\alpha $\end{document} values of various levels of IMF
IMF₁ IMF₂ IMF₃ IMF₄ IMF₅ IMF₆ IMF₇ IMF₈ IMF₉ IMF₁₀
$\alpha $ 0.31 0.27 0.46 1.2 1.51 1.87 2.01 2.03 2.04 2.04

Table 3. Denoising effect of rotor eccentricity fault motor signals under different noise conditions
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Table 3. Denoising effect of rotor eccentricity fault motor signals under different noise conditions
原始信号SNR/dB 降噪后信号SNR/dB 原始信号SNR/dB 降噪后信号SNR/dB
−12 −8.82 −4 −1.67
−10 −7.20 −2 −0.21
−8 −5.72 0 1.52
−6 −3.51 − −

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Renjie ZHU, Enzhe SONG, Chong YAO, Yun KE. Marine motor fault diagnosis based on CEEMDAN and BRECAN under strong noise conditions[J]. Chinese Journal of Ship Research, 2025, 20(2): 20

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Paper Information

Category: Ship Intelligent O&M, and Fault Diagnosis

Received: Jul. 15, 2024

Accepted: --

Published Online: May. 15, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.04059

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Experimental dataset

Table 1. Experimental dataset

Table 2. The \begin{document}$\alpha $\end{document} values of various levels of IMF

Table 2. The \begin{document}$\alpha $\end{document} values of various levels of IMF

Table 3. Denoising effect of rotor eccentricity fault motor signals under different noise conditions

Table 3. Denoising effect of rotor eccentricity fault motor signals under different noise conditions