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Methodology for the estimation of the fatigue life of rolling element bearings in non-stationary conditions
Projekt:
JVTC
Sammanfattning:
The estimation of the life of rolling element bearings is crucial to determine when maintenance is required. This paper presents
a methodology to calculate the fatigue life of rolling element bearings considering non-stationary conditions. Instead of taking a constant value, the paper considers cyclic loading and unloading processes, as well as increasing and decreasing values of the speed of rotation. It employs a model-based approach to calculate contact loads between the different elements of the bearing, with a finite element model used to calculate the contact stresses. Using this information, it then performs a fatigue analysis to study overloading in faulty bearings.
Författare:
Urko Leturiondo ; Oscar Salgado ; Diego Galar ; Madhav Mishra
Utgivare:
Luleå tekniska universitet
Utgivningsdatum:
2014-12
Diarienummer:
TRV 2011/58769
Antal sidor:
10
Språk:
Engelska
Kontaktperson:
Per Olof Larsson Kråik, UHjbs
Trafikverket, Postadress: 781 89 Borlänge, Telefon: 0771-921 921