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Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD
Joint Authors
Han, Dongying
Shi, Peiming
Su, Xiao
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-12
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Han, Dongying& Su, Xiao& Shi, Peiming. 2018. Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD. Shock and Vibration،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215249
Modern Language Association (MLA)
Han, Dongying…[et al.]. Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD. Shock and Vibration No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1215249
American Medical Association (AMA)
Han, Dongying& Su, Xiao& Shi, Peiming. Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215249
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215249