Blade and airfoil damping configurations
Abstract
The present embodiments set forth a blade including an airfoil, the airfoil including a tip cap, a pressure sidewall and a suction sidewall extending axially between corresponding leading and trailing edges and radially between the base and the tip cap. The blade, including the airfoil and base, being formed in at least two airfoil parts, each of the two airfoil parts including contacting edges engaging each other respective contacting edges, the contacting edges defining a joint for preloading each of the at least two parts with each other and with the base. The at least two airfoil parts forming the airfoil being retained to each other by an interference fit at the joint. The interference fit providing frictional damping of vibrations in the blade during blade operation.
- Inventors:
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1892954
- Patent Number(s):
- 11339665
- Application Number:
- 16/816,568
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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
- DOE Contract Number:
- FE0031613
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 03/12/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Hart, Andrew Clifford, Li, Jing, Chakrabarti, Suryarghya, Balkcum, III, James Tyson, and Feigl, Markus. Blade and airfoil damping configurations. United States: N. p., 2022.
Web.
Hart, Andrew Clifford, Li, Jing, Chakrabarti, Suryarghya, Balkcum, III, James Tyson, & Feigl, Markus. Blade and airfoil damping configurations. United States.
Hart, Andrew Clifford, Li, Jing, Chakrabarti, Suryarghya, Balkcum, III, James Tyson, and Feigl, Markus. Tue .
"Blade and airfoil damping configurations". United States. https://www.osti.gov/servlets/purl/1892954.
@article{osti_1892954,
title = {Blade and airfoil damping configurations},
author = {Hart, Andrew Clifford and Li, Jing and Chakrabarti, Suryarghya and Balkcum, III, James Tyson and Feigl, Markus},
abstractNote = {The present embodiments set forth a blade including an airfoil, the airfoil including a tip cap, a pressure sidewall and a suction sidewall extending axially between corresponding leading and trailing edges and radially between the base and the tip cap. The blade, including the airfoil and base, being formed in at least two airfoil parts, each of the two airfoil parts including contacting edges engaging each other respective contacting edges, the contacting edges defining a joint for preloading each of the at least two parts with each other and with the base. The at least two airfoil parts forming the airfoil being retained to each other by an interference fit at the joint. The interference fit providing frictional damping of vibrations in the blade during blade operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {5}
}
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Works referenced in this record:
Split blade frictional damper
patent, June 2004
- Miller, Jeff H.; Davis, Gary A.
- US Patent Document 6,752,594
Methods and apparatus for assembling gas turbine engines
patent, January 2006
- Allen, Jr., Clifford Edward; Charlton, Alan
- US Patent Document 6,983,608
Turbine airfoil having outboard and inboard sections
patent, March 2015
- Mazzola, Stefan; Marra, John J.
- US Patent Document 8,979,498
Airfoil acoustic impedance control
patent, October 2009
- Reba, Ramons A.; Morin, Bruce L.; Morford, Stephen A.
- US Patent Document 7,607,287
Turbine frame and airfoil for turbine frame
patent, October 2017
- Karafillis, Apostolos Pavlos; Frash, Martin Wayne; Ortega, Schuyler Javier
- US Patent Document 9,784,133
Methods for Manufacturing Hollow Members
patent, May 1974
- Kaufman, Sr., Ralph O.
- US Patent Document 3810286 A
Detachable leading edge for airfoils
patent, July 2008
- Matheny, Paul; Carter, Brad; Potter, Brian Denver
- US Patent Document 7,399,159
Mechanically Retained Fan Blade Cover
patent-application, November 2017
- Murdock, James R.
- US Patent Application 15/163933; 20170343007 A1
Guide Vane And Method Of Fabricating The Same
patent-application, July 2008
- Moniz, Thomas Ory; Orlando, Robert Joseph; Macsotai, Noel Istvan
- US Patent Application 11/648508; 20080159856 A1
Split shank rotor blade
patent, August 2010
- Maggs, Peter J.; Bagnall, Steven M.; Evans, Neil M.
- US Patent Document 7,766,621
Mechanically retained fan blade cover
patent, May 2019
- Murdock, James R.
- US Patent Document 10,280,759
Detachable Leading Edge For Airfoils
patent-application, June 2005
- MAtheny, Paul; Carter, Brad; Potter, Brian
- US Patent Application 10/876081; 20050118028 A1