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Statistical index development from time domain for rolling element bearings
Luleå tekniska universitet, Drift, underhåll och akustik.ORCID iD: 0000-0001-8111-6918
Responsible organisation
2014 (English)In: International Journal of Performability Engineering, ISSN 0973-1318, Vol. 10, no 3, p. 313-324Article in journal (Refereed) Published
Abstract [en]

Feature extraction is crucial to efficiently diagnose fault. This paper discusses a number of time-domain statistical features, including Kurtosis or the Crest Factor, the Mean by Deviation Ratio (MDR), and Symbolized Sequence Shannon Entropy (SSSE). The SSSE reflects the spatial distribution of the signal which is complementary with the statistical features. A new feature, Normalized Normal Negative Likelihood (NNNL), is used to improve the Normal Negative Likelihood (NNL). A Separation Index (SI) called the Extended SI (ESI) evaluates the performance of each feature and to remove noise feature. The Multi-Class Support Vector Machine (MSVM) recognizes bearing defect patterns. A numerical case is presented to demonstrate these features, their feature subset selection method and the pattern recognition method. The MSVM is used to detect three different types of bearing defects: defects in the inner race, outer race and bearing ball

Place, publisher, year, edition, pages
2014. Vol. 10, no 3, p. 313-324
National Category
Other Civil Engineering
Research subject
FOI-portföljer, Strategiska initiativ
Identifiers
URN: urn:nbn:se:trafikverket:diva-5839DOI: 10.23940/ijpe.14.3.p313.magLocal ID: f3348603-dda5-4e71-9eb3-bb6a07eb25b4OAI: oai:DiVA.org:trafikverket-5839DiVA, id: diva2:1736247
Projects
JVTC
Funder
Swedish Transport Administration, TRV 2011/58769Available from: 2023-02-13 Created: 2023-02-13 Last updated: 2025-09-04Bibliographically approved

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Fuqing, YuanKumar, Uday

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