Articles | Volume 3, issue 1
https://doi.org/10.5194/wes-3-97-2018
https://doi.org/10.5194/wes-3-97-2018
Research article
 | 
14 Mar 2018
Research article |  | 14 Mar 2018

Friction torque of wind-turbine pitch bearings – comparison of experimental results with available models

Matthias Stammler, Fabian Schwack, Norbert Bader, Andreas Reuter, and Gerhard Poll

Viewed

Total article views: 5,994 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
3,698 2,148 148 5,994 115 111
  • HTML: 3,698
  • PDF: 2,148
  • XML: 148
  • Total: 5,994
  • BibTeX: 115
  • EndNote: 111
Views and downloads (calculated since 02 May 2017)
Cumulative views and downloads (calculated since 02 May 2017)

Viewed (geographical distribution)

Total article views: 5,994 (including HTML, PDF, and XML) Thereof 5,144 with geography defined and 850 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Discussed (preprint)

Latest update: 02 Apr 2025
Download
Short summary
Modern wind turbines all share the ability to turn (pitch) the blades around their main axis. By pitching the blades, the aerodynamic forces created by the blades are controlled. Rolling bearings, consisting of two steel rings and balls that roll on raceways between them, are used to allow pitching. To design pitch drives, it is necessary to know the losses within the bearings. This article describes how such losses have been measured and compares them with calculation models.
Share
Altmetrics
Final-revised paper
Preprint