Planetary Load Sharing in Three-Point-Mounted Wind Turbine Gearboxes: A Design and Test Comparison
Conference
·
OSTI ID:1346815
The planetary load sharing characteristics of wind turbine gearboxes supported by cylindrical roller bearings (CRBs) and preloaded tapered roller bearings (TRBs) when subjected to rotor moments are compared in this work. Planetary bearing loads were measured in field-representative dynamometer tests and compared to loads predicted by finite-element models. Load sharing was significantly improved with preloaded TRBs. In pure torque conditions, the upwind planet bearing loads in the gearbox with preloaded TRBs were a maximum of 1.14 compared to 1.47 in the gearbox with CRBs. Consequently, the predicted fatigue life of the complete set of planetary bearings for the gearbox with preloaded TRBs is 3.5 times greater than that of the gearbox with CRBs.
- Research Organization:
- NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1346815
- Report Number(s):
- NREL/PR-5000-68021
- Country of Publication:
- United States
- Language:
- English
Similar Records
Planetary Load Sharing in Three-Point Mounted Wind Turbine Gearboxes: A Design and Test Comparison
Planetary Load Sharing in Three-Point- Mounted Wind Turbine Gearboxes: Preprint
Comparison of planetary bearing load-sharing characteristics in wind turbine gearboxes
Technical Report
·
Thu Apr 06 00:00:00 EDT 2017
·
OSTI ID:1351159
Planetary Load Sharing in Three-Point- Mounted Wind Turbine Gearboxes: Preprint
Conference
·
Fri Sep 15 00:00:00 EDT 2017
·
OSTI ID:1393789
Comparison of planetary bearing load-sharing characteristics in wind turbine gearboxes
Journal Article
·
Thu Dec 20 19:00:00 EST 2018
· Wind Energy Science (Online)
·
OSTI ID:1488673