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Hernandez, Angel
Publications (2 of 2) Show all publications
Perales, N., Hernandez, A., Galar, D. & Villarejo, R. (2014). A comparison of techniques to determine the nominal life (L10) on railway bearings. In: : . Paper presented at International Conference on Condition Monitoring and Machinery Failure Prevention Technologies : 10/06/2014 - 12/06/2014.
Open this publication in new window or tab >>A comparison of techniques to determine the nominal life (L10) on railway bearings
2014 (English)Conference paper, Oral presentation only (Refereed)
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.

Series
Trafikverkets forskningsportföljerTrafikverkets forskningsportföljer
National Category
Other Civil Engineering
Research subject
FOI-portföljer, Strategiska initiativ
Identifiers
urn:nbn:se:trafikverket:diva-5965 (URN)2-s2.0-84918508131 (Scopus ID)b1cfe201-afe4-466a-a444-c31d9cb431de (Local ID)b1cfe201-afe4-466a-a444-c31d9cb431de (Archive number)b1cfe201-afe4-466a-a444-c31d9cb431de (OAI)
Conference
International Conference on Condition Monitoring and Machinery Failure Prevention Technologies : 10/06/2014 - 12/06/2014
Projects
JVTC
Funder
Swedish Transport Administration, TRV 2011/58769
Note

Godkänd; 2014; 20150107 (andbra)

Available from: 2016-10-03 Created: 2023-03-02
Hernandez, A. & Galar, D. (2014). Techniques of Prognostics for Condition-Based Maintenance in Different Types of Assets. Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Techniques of Prognostics for Condition-Based Maintenance in Different Types of Assets
2014 (English)Report (Refereed)
Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2014. p. 130
Series
Trafikverkets forskningsportföljer
National Category
Other Civil Engineering
Research subject
FOI-portföljer, Strategiska initiativ
Identifiers
urn:nbn:se:trafikverket:diva-5857 (URN)a1a217ba-fcb4-4af9-afd6-2b175281ae58 (Local ID)978-91-7439-980-6 (ISBN)978-91-7439-981-3 (ISBN)a1a217ba-fcb4-4af9-afd6-2b175281ae58 (Archive number)a1a217ba-fcb4-4af9-afd6-2b175281ae58 (OAI)
Projects
JVTC
Funder
Swedish Transport Administration, TRV 2011/58769
Note

Godkänd; 2014; 20140625 (andbra)

Available from: 2023-02-20 Created: 2023-02-20 Last updated: 2023-03-13Bibliographically approved
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