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.

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

CHATTERTON, STEVEN;PENNACCHI, PAOLO EMILIO LINO MARIA;VANIA, ANDREA TOMMASO;DANG, PHUOC VINH;CANGIOLI, FILIPPO
2015

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.
Proceedings of the ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2015
978-0-7918-5718-2
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/989649
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