Gearbox Reliability Collaborative Investigation of High-Speed-Shaft Bearing Loads
The loads and contact stresses in the bearings of the high speed shaft section of the Gearbox Reliability Collaborative gearbox are examined in this paper. The loads were measured though strain gauges installed on the bearing outer races during dynamometer testing of the gearbox. Loads and stresses were also predicted with a simple analytical model and higher-fidelity commercial models. The experimental data compared favorably to each model, and bearing stresses were below thresholds for contact fatigue and axial cracking.
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Controls & Reliability
Technology Testing & Certification
Components
Drivetrains & Generators
Utility-Scale Wind
Technical Report
Keller, Jonathan [National Renewable Energy Lab. (NREL), Golden, CO (United States)]; Guo, Yi [National Renewable Energy Lab. (NREL), Golden, CO (United States)]