Turbine blade damping device with controlled loading
Abstract
A damping structure for a turbomachine rotor. The damping structure including an elongated snubber element including a first snubber end rigidly attached to a first blade and extending toward an adjacent second blade, and an opposite second snubber end positioned adjacent to a cooperating surface associated with the second blade. The snubber element has a centerline extending radially inwardly in a direction from the first blade toward the second blade along at least a portion of the snubber element between the first and second snubber ends. Rotational movement of the rotor effects relative movement between the second snubber end and the cooperating surface to position the second snubber end in frictional engagement with the cooperating surface with a predetermined damping force determined by a centrifugal force on the snubber element.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc., Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1221800
- Patent Number(s):
- RE45,690
- Application Number:
- 14/190,529
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Resource Relation:
- Conference: San Jose, California United States, 8-13 June 2014; Patent File Date: 2014 Feb 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Marra, John J. Turbine blade damping device with controlled loading. United States: N. p., 2015.
Web.
Marra, John J. Turbine blade damping device with controlled loading. United States.
Marra, John J. Tue .
"Turbine blade damping device with controlled loading". United States. https://www.osti.gov/servlets/purl/1221800.
@article{osti_1221800,
title = {Turbine blade damping device with controlled loading},
author = {Marra, John J.},
abstractNote = {A damping structure for a turbomachine rotor. The damping structure including an elongated snubber element including a first snubber end rigidly attached to a first blade and extending toward an adjacent second blade, and an opposite second snubber end positioned adjacent to a cooperating surface associated with the second blade. The snubber element has a centerline extending radially inwardly in a direction from the first blade toward the second blade along at least a portion of the snubber element between the first and second snubber ends. Rotational movement of the rotor effects relative movement between the second snubber end and the cooperating surface to position the second snubber end in frictional engagement with the cooperating surface with a predetermined damping force determined by a centrifugal force on the snubber element.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 29 00:00:00 EDT 2015},
month = {Tue Sep 29 00:00:00 EDT 2015}
}
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Turbine blade damping device with controlled loading
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