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