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A comparison of techniques to determine the nominal life (L10) on railway bearings
Division of Operation and Maintenance Engineering, Lulea University of Technology.
Division of Operation and Maintenance Engineering, Lulea University of Technology.
Luleå tekniska universitet, Drift, underhåll och akustik.ORCID-id: 0000-0002-4107-0991
Luleå tekniska universitet, Drift, underhåll och akustik.
Ansvarig organisation
2014 (Engelska)Konferensbidrag, Enbart muntlig presentation (Refereegranskat)
Abstract [en]

Bearings are one of the most important components in a railway vehicle for safety, since a failsafe design is not available. Contact fatigue, internal clearance, corrosion, and contamination of the lubricating oil can cause bearing failures. Generally, failures show up as imperfections in the ball race, in the ball/roller or in the retainer. The more frequent defects are caused by contact fatigue [1]. The analytical methodology (Methodology I) is an alternative approach proposed by the authors [1], inspired by a procedure used to design rail shafts [2]. The purpose is to compare the obtained life using methodology I, with the life estimated by LKAB company. The latter uses a calculation method well-established in manuals of bearing manufacturers such as SKF and Timken. This is to avoid a drawback observed in this type of approach, namely, the lack of rigour in defining terms associated with the mathematical model used to estimate L10. The research goal is to perform an inspection and analysis of the functioning of the bearings most commonly used on railways in order to estimate the bearings' life under real operating conditions.

Ort, förlag, år, upplaga, sidor
2014.
Serie
Trafikverkets forskningsportföljerTrafikverkets forskningsportföljer
Nationell ämneskategori
Annan samhällsbyggnadsteknik
Forskningsämne
FOI-portföljer, Strategiska initiativ
Identifikatorer
URN: urn:nbn:se:trafikverket:diva-5965Scopus ID: 2-s2.0-84918508131Lokalt ID: b1cfe201-afe4-466a-a444-c31d9cb431deOAI: oai:DiVA.org:trafikverket-5965DiVA, id: diva2:1741013
Konferens
International Conference on Condition Monitoring and Machinery Failure Prevention Technologies : 10/06/2014 - 12/06/2014
Projekt
JVTC
Forskningsfinansiär
Trafikverket, TRV 2011/58769
Anmärkning

Godkänd; 2014; 20150107 (andbra)

Tillgänglig från: 2016-10-03 Skapad: 2023-03-02

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Perales, NumanHernandez, AngelGalar, DiegoVillarejo, Roberto

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