Collaborative efforts between Embry-Riddle Aeronautical University (ERAU) and the National Renewable Energy Laboratories (NREL) have resulted in an innovative dual-axis phase-locked resonant excitation (PhLEX) test method for fatigue testing of wind turbine blades. The Dual-axis phase-locked test method has shown to provide more realistic load application as compared to wind loading experienced through field operation conditions. The current concepts involved exciting the blade at its fundamental edgewise natural frequency while applying a force in the flap direction at that same frequency. This advanced test method incorporates existing commercially available test hardware, known as the Universal Resonant Excitation (UREX), combined with an additional hydraulically actuated member to dynamically force the blade using adaptive algorithms and advanced control strategies in order to provide cycle-to-cycle phase control and decreased testing time. In short, this paper will outline the development of a finite element model for predicting performance and evaluation of the results.
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ASME 2011 International Mechanical Engineering Congress and Exposition
November 11–17, 2011
Denver, Colorado, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5490-7
PROCEEDINGS PAPER
Development of a Dual-Axis Phase-Locked Resonant Excitation Test Method for Fatigue Testing of Wind Turbine Blades
Darris White,
Darris White
Embry-Riddle Aeronautical University, Daytona Beach, FL
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Michael Desmond,
Michael Desmond
National Renewable Energy Laboratory, Boulder, CO
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Waleed Gowharji,
Waleed Gowharji
Embry-Riddle Aeronautical University, Daytona Beach, FL
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Jenna A. Beckwith,
Jenna A. Beckwith
Embry-Riddle Aeronautical University, Daytona Beach, FL
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Kenneth J. Meierjurgen, II
Kenneth J. Meierjurgen, II
Embry-Riddle Aeronautical University, Daytona Beach, FL
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Darris White
Embry-Riddle Aeronautical University, Daytona Beach, FL
Michael Desmond
National Renewable Energy Laboratory, Boulder, CO
Waleed Gowharji
Embry-Riddle Aeronautical University, Daytona Beach, FL
Jenna A. Beckwith
Embry-Riddle Aeronautical University, Daytona Beach, FL
Kenneth J. Meierjurgen, II
Embry-Riddle Aeronautical University, Daytona Beach, FL
Paper No:
IMECE2011-63724, pp. 1163-1172; 10 pages
Published Online:
August 1, 2012
Citation
White, D, Desmond, M, Gowharji, W, Beckwith, JA, & Meierjurgen, KJ, II. "Development of a Dual-Axis Phase-Locked Resonant Excitation Test Method for Fatigue Testing of Wind Turbine Blades." Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition. Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B. Denver, Colorado, USA. November 11–17, 2011. pp. 1163-1172. ASME. https://doi.org/10.1115/IMECE2011-63724
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