Outstanding Youth Fund of Universities in Anhui Province(2022AH020032);University Natural Science Research Project of Anhui Province(2022AH050292);Anhui Key Laboratory of Mine Intelligent Equipment and Technology(ZKSYS202203)
Ramanujan Fourier mode decomposition uses scanning from low frequency to high frequency to obtain component signals
which is prone to excessive decomposition and information dispersion
resulting in decomposed components not having a single and complete mode information. To address the above issues
this paper proposes an adaptive concise empirical Ramanujan decomposition (ACERD) method. In the ACERD method
the power spectral density is used to obtain the split frequency band for accurate frequency band division. Meanwhile
the Ramanujan Fourier transform is used to extract the mode components corresponding to each segmented frequency band
improve the recognition ability of periodic components
and obtain mode components with a single periodic feature information. The analysis results of composite fault simulation signals and measured signals indicate that the ACERD method has excellent capability of frequency band segmentation and periodic pulse feature extraction
which is suitable for compound fault diagnosis.
关键词
Keywords
references
HUANG N E , SHEN Z , LONG S R , et al . The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis [J ] . Proceedings of the Royal Society of London Series A , 1998 , 454 ( 1971 ): 903 - 998 .
YUAN J , XU C , ZHAO Q , et al . High-fidelity noise-reconstructed empirical mode decomposition for mechanical multiple and weak fault extractions [J ] . ISA Transactions , 2022 , 129 ( Pt B ): 380 - 397 .
ZHAO Y X , FAN Y , LI H , et al . Rolling bearing composite fault diagnosis method based on EEMD fusion feature [J ] . Journal of Mechanical Science and Technology , 2022 , 36 ( 9 ): 4563 - 4570 .
ZHENG J D , PAN H Y , TONG J Y , et al . Adaptive mask signal-based local characteristic-scale decomposition and its application [J ] . Acta Electronica Sinica , 2020 , 48 ( 10 ): 2060 - 2070 . (in Chinese)
LI K , NIU Y Y , SU L , et al . Rolling bearing fault diagnosis method based on parameter optimized VMD [J ] . Journal of Vibration Engineering , 2023 , 36 ( 1 ): 280 - 287 . (in Chinese)
WU L W , NIE Y T , ZHANG Y P , et al . An adaptive filtering denoising method based on variational mode decomposition [J ] . Acta Electronica Sinica , 2021 , 49 ( 8 ): 1457 - 1465 . (in Chinese)
LIU Q Q , YANG J T , ZHANG K . An improved empirical wavelet transform and sensitive components selecting method for bearing fault [J ] . Measurement , 2022 , 187 : 110348 .
ZHOU W , FENG Z R , XU Y F , et al . Empirical Fourier decomposition: An accurate signal decomposition method for nonlinear and non-stationary time series analysis [J ] . Mechanical Systems and Signal Processing , 2022 , 163 : 108155 .
ZHENG J D , CAO S J , PAN H Y , et al . Spectral envelope-based adaptive empirical Fourier decomposition method and its application to rolling bearing fault diagnosis [J ] . ISA Transactions , 2022 , 129 ( Pt B ): 476 - 492 .
ZHOU W , FENG Z R , WANG X J . Operational modal analysis based on improved empirical Fourier decomposition [J ] . Journal of Vibration and Shock , 2021 , 40 ( 9 ): 48 - 54 . (in Chinese)
MARY LITTLE FLOWER T , JAYA T . Speech emotion recognition using Ramanujan Fourier Transform [J ] . Applied Acoustics , 2022 , 201 : 109133 .
YADAV Y , SHARMA S N , SHAKYA D K . Detection of tandem repeats in DNA sequences using short-time Ramanujan Fourier transform [J ] . IEEE/ACM Transactions on Computational Biology and Bioinformatics , 2022 , 19 ( 3 ): 1583 - 1591 .
CHENG J , YANG Y , WU Z T , et al . Ramanujan Fourier mode decomposition and its application in gear fault diagnosis [J ] . IEEE Transactions on Industrial Informatics , 2022 , 18 ( 9 ): 6079 - 6088 .
PAN H Y , ZHANG Y , CHENG J , et al . Adaptive multi-layer empirical Ramanujan decomposition and its application in roller bearing fault diagnosis [J ] . Measurement , 2023 , 213 : 112707 .
ZHANG K , MA C Y , XU Y G , et al . Feature extraction method based on adaptive and concise empirical wavelet transform and its applications in bearing fault diagnosis [J ] . Measurement , 2021 , 172 : 108976 .