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Title: High-Speed Shaft Bearing Loads Testing and Modeling in the NREL Gearbox Reliability Collaborative: Preprint

Bearing failures in the high speed output stage of the gearbox are plaguing the wind turbine industry. Accordingly, the National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) has performed an experimental and theoretical investigation of loads within these bearings. The purpose of this paper is to describe the instrumentation, calibrations, data post-processing and initial results from this testing and modeling effort. Measured HSS torque, bending, and bearing loads are related to model predictions. Of additional interest is examining if the shaft measurements can be simply related to bearing load measurements, eliminating the need for invasive modifications of the bearing races for such instrumentation.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1167067
Report Number(s):
NREL/CP-5000-63277
DOE Contract Number:
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: To be presented at the Conference for Wind Power Drives, 3-4 March 2015, Aachen, Delaware
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Wind Power Technologies Office
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; WIND TURBINES; TORQUE; NATIONAL RENEWABLE ENERGY LABORATORY BEARING FAILURES; WIND TURBINE; GEARBOX; GEARBOX RELIABILITY COLLABORATIVE; HIGH-SPEED SHAFT; TORQUE; NREL; Wind Energy