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Wind turbine blade with viscoelastic damping

United States Patent

9,541,061
January 10, 2017
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A wind turbine blade (60) damped by viscoelastic material (54, 54A-F) sandwiched between stiffer load-bearing sublayers (52A, 52B, 56A, 56B) in portions of the blade effective to damp oscillations (38) of the blade. The viscoelastic material may be located in one or more of: a forward portion (54A) of the shell, an aft portion (54D) of the shell, pressure and suction side end caps (54B) of an internal spar, internal webbing walls (54C, 54E), and a trailing edge core (54F).
Sievers; Ryan A. (Lyons, CO), Mullings; Justin L. (Golden, CO)
SIEMENS ENERGY, INC. (Orlando, FL)
14/ 195,935
20150252779
March 4, 2014
STATEMENT REGARDING FEDERALLY SPONSORED DEVELOPMENT Development for this invention was supported in part by Contract No. DE-EE0005493 awarded by the United States Department of Energy. Accordingly, the United States Government may have certain rights in this invention.