Abstract
The estimation of the life of rolling element bearings (REBs) is crucial to determine when maintenance is required. This paper presents a methodology to calculate the fatigue life of REBs 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 (FEM) used to calculate the contact stresses. Using this information, it then performs a fatigue analysis to study overloading in faulty bearings.
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Acknowledgments
This work has been supported in part by the project ETORTEK MECOFF, economically supported by The Basque Government under project No. IE13-379. Any opinions, findings and conclusions expressed in this article are those of the authors and do not necessarily reflect the views of funding agencies. The authors would also like to thank Fundación de Centros Tecnológicos—Iñaki Goenaga.
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Leturiondo, U., Salgado, O., Galar, D., Mishra, M. (2016). Methodology for the Estimation of the Fatigue Life of Rolling Element Bearings in Non-stationary Conditions. In: Chaari, F., Zimroz, R., Bartelmus, W., Haddar, M. (eds) Advances in Condition Monitoring of Machinery in Non-Stationary Operations. CMMNO 2014. Applied Condition Monitoring, vol 4. Springer, Cham. https://doi.org/10.1007/978-3-319-20463-5_31
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DOI: https://doi.org/10.1007/978-3-319-20463-5_31
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