@misc{5732a64687f849cba164c422a5e6dfd7,
title = "Planetary Load Sharing in Three-Point-Mounted Wind Turbine Gearboxes: A Design and Test Comparison: NREL (National Renewable Energy Laboratory)",
abstract = "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.",
keywords = "CRB, cynlindrical roller bearings, gearbox, tapered roller bearings, testing, wind turbine",
author = "Jonathan Keller and Yi Guo and Doug Lucas and Zhiwei Zhang",
year = "2017",
language = "American English",
series = "Presented at the 3rd Conference for Wind Power Drives 2017, 7-8 March 2017, Aachen, Germany",
type = "Other",
}
