DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Wind turbine blade with viscoelastic damping

Abstract

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).

Inventors:
;
Issue Date:
Research Org.:
SIEMENS ENERGY, INC. Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1338922
Patent Number(s):
9541061
Application Number:
14/195,935
Assignee:
SIEMENS ENERGY, INC. (Orlando, FL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
DOE Contract Number:  
EE0005493
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 04
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 36 MATERIALS SCIENCE

Citation Formats

Sievers, Ryan A., and Mullings, Justin L. Wind turbine blade with viscoelastic damping. United States: N. p., 2017. Web.
Sievers, Ryan A., & Mullings, Justin L. Wind turbine blade with viscoelastic damping. United States.
Sievers, Ryan A., and Mullings, Justin L. Tue . "Wind turbine blade with viscoelastic damping". United States. https://www.osti.gov/servlets/purl/1338922.
@article{osti_1338922,
title = {Wind turbine blade with viscoelastic damping},
author = {Sievers, Ryan A. and Mullings, Justin L.},
abstractNote = {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).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {1}
}

Works referenced in this record:

Vibration Absorber
patent, June 1986


Rotor blade internal damper
patent, May 1982


Method for fabricating wind turbine blades
patent, November 1982


Mixing apparatus
patent, February 1988


Automotive sound-proof materials and damping materials therefor
patent, March 1992


Viscoelastic vibration damper for engine struts
patent, October 1994


Lightweight structural damping assembly
patent, November 2007


Method for fabricating elongated airfoils for wind turbines
patent, March 2011


Wind turbine blade with damping element
patent, August 2011


Blade having a damping element and method of fabricating same
patent, September 2012


Blade made of composite material comprising a damping device
patent, August 2013