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Diagnostics of Rolling Element Bearings by Means of the Higuchy Fractal Dimension

[+] Author Affiliations
Steven Chatterton, Paolo Pennacchi, Andrea Vania, Phuoc Vinh Dang, Filippo Cangioli

Politecnico di Milano, Milano, Italy

Paper No. DETC2015-46609, pp. V008T13A069; 6 pages
doi:10.1115/DETC2015-46609
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 8: 27th Conference on Mechanical Vibration and Noise
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5718-1
  • Copyright © 2015 by ASME

abstract

In the field of rolling element bearing, the degradation of bearing health could be detected by means of suitable damage indexes. Band-Kurtosis index, that is the kurtosis value of the band-filtered signal, is often assumed. The critical point of this approach is the selection of a suitable filter band. In the paper, the use of a chaos metrics, namely the Higuchi fractal dimension as damage indicator is described. The trend of this index is compared with the common approach of band-kurtosis indicator for an experimental case of a rolling element bearing in which the defect developed until a permanent failure.

Copyright © 2015 by ASME

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