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Title: Turbine blade with tuned damping structure

Abstract

A turbine blade is provided comprising: a root; an airfoil comprising an external wall extending radially from the root and having a radially outermost portion; and a damping structure. The external wall may comprise first and second side walls joined together to define an inner cavity of the airfoil. The damping structure may be positioned within the airfoil inner cavity and coupled to the airfoil so as to define a tuned mass damper.

Inventors:
;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213468
Patent Number(s):
9121288
Application Number:
13/464,108
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 May 04
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY

Citation Formats

Campbell, Christian X., and Messmann, Stephen J.. Turbine blade with tuned damping structure. United States: N. p., 2015. Web.
Campbell, Christian X., & Messmann, Stephen J.. Turbine blade with tuned damping structure. United States.
Campbell, Christian X., and Messmann, Stephen J.. Tue . "Turbine blade with tuned damping structure". United States. https://www.osti.gov/servlets/purl/1213468.
@article{osti_1213468,
title = {Turbine blade with tuned damping structure},
author = {Campbell, Christian X. and Messmann, Stephen J.},
abstractNote = {A turbine blade is provided comprising: a root; an airfoil comprising an external wall extending radially from the root and having a radially outermost portion; and a damping structure. The external wall may comprise first and second side walls joined together to define an inner cavity of the airfoil. The damping structure may be positioned within the airfoil inner cavity and coupled to the airfoil so as to define a tuned mass damper.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

Works referenced in this record:

Vibration Damper for Blades and Vanes
patent, September 1954


Rotor blade for a gas turbine engine
patent, November 1984


Damped airfoil blade
patent, November 1992


Airfoil vibration damping device
patent, October 1998


Panel damped hybrid blade
patent, March 2000


Gas turbine engine airfoil damper and method for production
patent, December 2000


Aerofoil blade damper
patent, September 2001


Component with internal damping
patent, July 2006


Rotor blade with a stick damper
patent, May 2007


Damper configured turbine blade
patent, June 2010


Airfoil with Break-Way, Free-Floating Damper Member
patent-application, October 2013