Comparison of planetary bearing load-sharing characteristics in wind turbine gearboxes

Keller, Jonathan; Guo, Yi; Zhang, Zhiwei; Lucas, Doug

doi:https://doi.org/10.5194/wes-3-947-2018

Articles | Volume 3, issue 2

https://doi.org/10.5194/wes-3-947-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wes-3-947-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 3, issue 2

Research article

|

21 Dec 2018

Research article |

| 21 Dec 2018

Comparison of planetary bearing load-sharing characteristics in wind turbine gearboxes

Jonathan Keller, Yi Guo, Zhiwei Zhang, and Doug Lucas

Data sets

Gearbox reliability collaborative phase 3 gearbox 2 test report J. Keller and R. Wallen https://doi.org/10.7799/1254154

Gearbox reliability collaborative phase 3 gearbox 3 test report J. Keller and R. Wallen https://doi.org/10.7799/1337868

Short summary

The US Department of Energy's National Renewable Energy Laboratory (NREL) and industry partners successfully demonstrated a new gearbox design using preloaded tapered roller bearings in the planetary section. The new gearbox design demonstrated improved planetary load-sharing characteristics in the presence of rotor pitch and yaw moments, resulting in a predicted gearbox lifetime that is 3.5 times greater than the previous conventional design with cylindrical roller bearings.