Research on the crack behaviors under rolling contact of oscillation applications in wind turbine bearings

Shuang Wang; Jing Du; Reza Talemi; Shengbei Xia; Shuxin Jiang

doi:10.1117/12.3006430

26 September 2023 Research on the crack behaviors under rolling contact of oscillation applications in wind turbine bearings

Shuang Wang, Jing Du, Reza Talemi, Shengbei Xia, Shuxin Jiang

Author Affiliations +

Proceedings Volume 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023); 127930M (2023) https://doi.org/10.1117/12.3006430
Event: International Conference on Mechatronics and Intelligent Control (ICMIC2023), 2023, Wuhan, China

Abstract

Dynamic vibration and oscillation are a typical operating condition of wind turbine bearings. Different from constant rotating, contact points in a bearing under oscillation loading experience rolling contact loads from two opposite directions. Nevertheless, most research workings on crack behaviors available in the literature are focused on rotation rather than oscillation loading conditions. To this end, this paper establishes the 3D crack-initiated finite element model of a scaled pitch bearing coupling with ANSYS and FRANC3D. Using the developed model, the stress intensity factors (SIFs) during the oscillation cycle loading are computed based on interaction integral method. Moreover, the impact of different crack parameters (i.e. initial angle and crack size) on crack propagation rate and its kink angle is investigated. The obtained results show that the oscillation loading influences not only the crack propagation rate but also the crack growth angle, especially on the crack front midpoint. Furthermore, it has been found that oscillating rolling contact loading has a stronger impact on the behavior of both larger and vertical cracks.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shuang Wang, Jing Du, Reza Talemi, Shengbei Xia, and Shuxin Jiang "Research on the crack behaviors under rolling contact of oscillation applications in wind turbine bearings", Proc. SPIE 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023), 127930M (26 September 2023); https://doi.org/10.1117/12.3006430

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