Wind Turbine Gearbox Condition Monitoring Round Robin Study - Vibration Analysis

NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. The authors are solely responsible for any omission or errors contained herein. NREL wishes to acknowledge and thank the Office of Energy Efficiency and Renewable Energy and its staff who have supported this work from its inception. Specifically, NREL would like to thank Mark Higgins and Michael Derby for their support and guidance. NREL deeply appreciates the voluntarily support from all sixteen partners of the Wind Turbine Gearbox Condition Monitoring Round Robin project. One project partner estimates that the value of the voluntary support from all partners would be worth $2 to $3 million.