Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD
For solving detection problems of multifrequency weak signals in noisy background, a novel weak signal detection method based on variational mode decomposition (VMD) and rescaling frequency-shifted multistable stochastic resonance (RFMSR) with analytical mode decomposition (AMD) is proposed. In this...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/4252438 |
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| _version_ | 1832555388901261312 |
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| author | Dongying Han Xiao Su Peiming Shi |
| author_facet | Dongying Han Xiao Su Peiming Shi |
| author_sort | Dongying Han |
| collection | DOAJ |
| description | For solving detection problems of multifrequency weak signals in noisy background, a novel weak signal detection method based on variational mode decomposition (VMD) and rescaling frequency-shifted multistable stochastic resonance (RFMSR) with analytical mode decomposition (AMD) is proposed. In this method, different signal frequency bands are processed by rescaling subsampling compression to make each frequency band meet the conditions of stochastic resonance. Before the enhanced signal components are synthesized, they are processed to achieve the enhanced signal by means of AMD, leaving only the enhanced sections of the signal. The processed signal is decomposed into intrinsic mode functions (IMF) by VMD, in order to require the detection of weak multifrequency signals. The experimental analysis of the rolling bearing inner ring fault and gear fault diagnosis demonstrate that the proposed method can not only enhance signal amplitude, reduce false components, and improve the VMD algorithm’s accuracy, but also effectively detect weak multifrequency signals submerged by noise. |
| format | Article |
| id | doaj-art-ac8f2631f5b04cd58a972e0d5b17bef6 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-ac8f2631f5b04cd58a972e0d5b17bef62025-02-03T05:48:19ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/42524384252438Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMDDongying Han0Xiao Su1Peiming Shi2School of Vehicles and Energy, Yanshan University, Qinhuangdao, Hebei 066004, ChinaSchool of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, ChinaSchool of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, ChinaFor solving detection problems of multifrequency weak signals in noisy background, a novel weak signal detection method based on variational mode decomposition (VMD) and rescaling frequency-shifted multistable stochastic resonance (RFMSR) with analytical mode decomposition (AMD) is proposed. In this method, different signal frequency bands are processed by rescaling subsampling compression to make each frequency band meet the conditions of stochastic resonance. Before the enhanced signal components are synthesized, they are processed to achieve the enhanced signal by means of AMD, leaving only the enhanced sections of the signal. The processed signal is decomposed into intrinsic mode functions (IMF) by VMD, in order to require the detection of weak multifrequency signals. The experimental analysis of the rolling bearing inner ring fault and gear fault diagnosis demonstrate that the proposed method can not only enhance signal amplitude, reduce false components, and improve the VMD algorithm’s accuracy, but also effectively detect weak multifrequency signals submerged by noise.http://dx.doi.org/10.1155/2018/4252438 |
| spellingShingle | Dongying Han Xiao Su Peiming Shi Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD Shock and Vibration |
| title | Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD |
| title_full | Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD |
| title_fullStr | Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD |
| title_full_unstemmed | Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD |
| title_short | Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD |
| title_sort | weak fault signal detection of rotating machinery based on multistable stochastic resonance and vmd amd |
| url | http://dx.doi.org/10.1155/2018/4252438 |
| work_keys_str_mv | AT dongyinghan weakfaultsignaldetectionofrotatingmachinerybasedonmultistablestochasticresonanceandvmdamd AT xiaosu weakfaultsignaldetectionofrotatingmachinerybasedonmultistablestochasticresonanceandvmdamd AT peimingshi weakfaultsignaldetectionofrotatingmachinerybasedonmultistablestochasticresonanceandvmdamd |