The FAST Code which is capable of determining structural loads of a flexible, teetering, horizontal axis wind turbine is described and comparisons of calculated loads with test data are given at two wind speeds for the ESI-80. The FAST Code models a two-bladed HAWT with degrees-of-freedom for blade bending, teeter, drive train flexibility, yaw, and windwise and crosswind tower motion. The code allows blade dimensions, stiffnesses, and weights to differ and the code models tower shadow, wind shear, and turbulence. Additionally, dynamic stall is included as are delta-3 and an underslung rotor. Load comparisons are made with ESI-80 test data in the form of power spectral density, rainflow counting, occurrence histograms, and azimuth averaged bin plots. It is concluded that agreement between the FAST Code and test results is good.
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The Determination of Stochastic Loads on Horizontal Axis Wind Turbine Blades
L. N. Freeman,
L. N. Freeman
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
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R. E. Wilson
R. E. Wilson
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Search for other works by this author on:
L. N. Freeman
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
R. E. Wilson
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
J. Sol. Energy Eng. May 1998, 120(2): 115-120 (6 pages)
Published Online: May 1, 1998
Article history
Revised:
March 1, 1996
Received:
January 1, 1998
Online:
February 14, 2008
Citation
Freeman, L. N., and Wilson, R. E. (May 1, 1998). "The Determination of Stochastic Loads on Horizontal Axis Wind Turbine Blades." ASME. J. Sol. Energy Eng. May 1998; 120(2): 115–120. https://doi.org/10.1115/1.2888053
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