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Title: Rolling Element Bearing Dynamics in Wind Turbines

Abstract

There are unique reliability challenges related to wind turbine drivetrains. Predominant failure modes are not accounted for in design standards, not attributable to material deficiencies or quality control, and are complex and independent of the component supplier. The team conducted testing and analysis to enable improvement of inherent reliability, an increase of availability with less effort and drama, and a reduction in wind plant operation and maintenance costs. The analytic model was validated through uptower experiments, and the bearing speed was directly affected by drivetrain load and speed. Bearing sliding is widely present during regular turbine operations and significant sliding occurs during transient events, which can lead to bearing failures and shortened life.

Authors:
 [1]; ORCiD logo [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1490744
Report Number(s):
NREL/PR-5000-72185
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2018 American Society of Mechanical Engineers International Design Engineering Technical Conferences Meeting, 26-29 August 2018, Quebec City, Canada
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 42 ENGINEERING; gearbox; wind energy; drivetrain reliability; loads; bearing speed

Citation Formats

Guo, Yi, and Keller, Jonathan A. Rolling Element Bearing Dynamics in Wind Turbines. United States: N. p., 2019. Web.
Guo, Yi, & Keller, Jonathan A. Rolling Element Bearing Dynamics in Wind Turbines. United States.
Guo, Yi, and Keller, Jonathan A. Mon . "Rolling Element Bearing Dynamics in Wind Turbines". United States. https://www.osti.gov/servlets/purl/1490744.
@article{osti_1490744,
title = {Rolling Element Bearing Dynamics in Wind Turbines},
author = {Guo, Yi and Keller, Jonathan A},
abstractNote = {There are unique reliability challenges related to wind turbine drivetrains. Predominant failure modes are not accounted for in design standards, not attributable to material deficiencies or quality control, and are complex and independent of the component supplier. The team conducted testing and analysis to enable improvement of inherent reliability, an increase of availability with less effort and drama, and a reduction in wind plant operation and maintenance costs. The analytic model was validated through uptower experiments, and the bearing speed was directly affected by drivetrain load and speed. Bearing sliding is widely present during regular turbine operations and significant sliding occurs during transient events, which can lead to bearing failures and shortened life.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

Conference:
Other availability
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