Pressurized damping fluid injection for damping turbine blade vibration
Abstract
A blade vibration damping system impacts a pressurized damping fluid on a surface of at least one of a plurality of blades of a turbine in opposition to a vibratory movement thereof to cause damping of vibration of the blade(s) during operation of the turbine. The system includes a fluid injection nozzle in a stationary component adjacent the plurality of blades. A valve selectively admits the pressurized damping fluid to the fluid injection nozzle from a source of pressurized damping fluid, and a control system controls the valve to operate the fluid injection nozzle in response to an operational parameter exceeding a threshold during operation of the turbine. A related turbine casing and method are also provided.
- Inventors:
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1840331
- Patent Number(s):
- 11085303
- Application Number:
- 16/902,343
- 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: 06/16/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Delvaux, John McConnell, Lang, Claire Fridtjof, and Chakrabarti, Suryarghya. Pressurized damping fluid injection for damping turbine blade vibration. United States: N. p., 2021.
Web.
Delvaux, John McConnell, Lang, Claire Fridtjof, & Chakrabarti, Suryarghya. Pressurized damping fluid injection for damping turbine blade vibration. United States.
Delvaux, John McConnell, Lang, Claire Fridtjof, and Chakrabarti, Suryarghya. Tue .
"Pressurized damping fluid injection for damping turbine blade vibration". United States. https://www.osti.gov/servlets/purl/1840331.
@article{osti_1840331,
title = {Pressurized damping fluid injection for damping turbine blade vibration},
author = {Delvaux, John McConnell and Lang, Claire Fridtjof and Chakrabarti, Suryarghya},
abstractNote = {A blade vibration damping system impacts a pressurized damping fluid on a surface of at least one of a plurality of blades of a turbine in opposition to a vibratory movement thereof to cause damping of vibration of the blade(s) during operation of the turbine. The system includes a fluid injection nozzle in a stationary component adjacent the plurality of blades. A valve selectively admits the pressurized damping fluid to the fluid injection nozzle from a source of pressurized damping fluid, and a control system controls the valve to operate the fluid injection nozzle in response to an operational parameter exceeding a threshold during operation of the turbine. A related turbine casing and method are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 10 00:00:00 EDT 2021},
month = {Tue Aug 10 00:00:00 EDT 2021}
}
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