An insight concept to select appropriate IMFs for envelope analysis of bearing fault diagnosis

Wen Chang Tsao, Yi Fan Li, Duc Du Le, Min Chun Pan

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Traditional envelope analysis must examine all the resonant frequency bands during the process of bearing fault detection. To eliminate the above deficiency, this paper presents an insight concept based on the empirical mode decomposition to choose an appropriate resonant frequency band for characterizing feature frequencies of bearing faults by using the envelope analysis subsequently. By the band-pass filtering nature of the empirical mode decomposition, the resonant frequency bands are allocated in a specific intrinsic mode function. The inner or outer ring of bearings scratched intentionally is used to validate the feasibility of the proposed idea, and comparisons with the traditional envelope analysis are addressed. The experimental results show that the proposed insight concept can efficiently and correctly diagnose the bearing fault types.

Original languageEnglish
Pages (from-to)1489-1498
Number of pages10
JournalMeasurement: Journal of the International Measurement Confederation
Volume45
Issue number6
DOIs
StatePublished - Jul 2012

Keywords

  • Bearing fault detection
  • Empirical mode decomposition
  • Envelope analysis
  • Intrinsic mode function
  • Run-up bench excitation

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