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Fatigue Life Variability and Reliability Analysis of a Wind Turbine Blade

by Paul S. Veers, US Dep of Energy, United States,
Herbert J. Sutherland, US Dep of Energy, United States,
Thomas D. Ashwill, US Dep of Energy, United States,



Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract:

Wind turbines must withstand harsh environments that induce many stress cycles into their components. A numerical analysis package is used to illustrate the sobering variability in predicted fatigue life with relatively small changes in inputs. The variability of the input parameters is modeled to obtain estimates of the fatigue reliability of the turbine blades.

Subject Headings: Fatigue life | Wind power | Turbines | Numerical analysis | Stress analysis | Numerical models | Standards and codes

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