![](/images/graphics-bg.png)
Partly Duffing Oscillator Stochastic Resonance Method and Its Application on Mechanical Fault Diagnosis
Joint Authors
Jia, Rong
Wu, Hua
Dang, Jian
Luo, Xingqi
Chen, Di-Yi
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-23
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Due to the fact that the slight fault signals in early failure of mechanical system are usually submerged in heavy background noise, it is unfeasible to extract the weak fault feature via the traditional vibration analysis.
Stochastic resonance (SR), as a method of utilizing noise to amplify weak signals in nonlinear dynamical systems, can detect weak signals overwhelmed in the noise.
However, based on the analysis of the impact of noise intensity on SR effect, it is concluded that the detection results are dramatically limited by the noise intensity of measured signals, especially for incipient fault feature of mechanical system with poor working environment.
Therefore, this paper proposes a partly Duffing oscillator SR method to extract the fault feature of mechanical system.
In this method, to locate the appearance of weak fault feature and decrease noise intensity, the permutation entropy index is constructed to select the measured signals for the input of Duffing oscillator system.
Then, according to the regulation of system parameters, a reasonable match between the selected signals and Duffing oscillator model is achieved to produce a SR phenomenon and realize the fault diagnosis of mechanical system.
Experiment results demonstrate that the proposed method achieves a better effect on the fault diagnosis of mechanical system.
American Psychological Association (APA)
Dang, Jian& Jia, Rong& Luo, Xingqi& Wu, Hua& Chen, Di-Yi. 2016. Partly Duffing Oscillator Stochastic Resonance Method and Its Application on Mechanical Fault Diagnosis. Shock and Vibration،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1118968
Modern Language Association (MLA)
Dang, Jian…[et al.]. Partly Duffing Oscillator Stochastic Resonance Method and Its Application on Mechanical Fault Diagnosis. Shock and Vibration No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1118968
American Medical Association (AMA)
Dang, Jian& Jia, Rong& Luo, Xingqi& Wu, Hua& Chen, Di-Yi. Partly Duffing Oscillator Stochastic Resonance Method and Its Application on Mechanical Fault Diagnosis. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1118968
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118968