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Title: Damping element for reducing the vibration of an airfoil

Abstract

An airfoil (10) is provided with a tip (12) having an opening (14) to a center channel (24). A damping element (16) is inserted within the opening of the center channel, to reduce an induced vibration of the airfoil. The mass of the damping element, a spring constant of the damping element within the center channel, and/or a mounting location (58) of the damping element within the center channel may be adjustably varied, to shift a resonance frequency of the airfoil outside a natural operating frequency of the airfoil.

Inventors:
;
Issue Date:
Research Org.:
Siemens Energy, Inc, Orlando, FL, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1108601
Patent Number(s):
8,579,593
Application Number:
12/613,957
Assignee:
Siemens Energy, Inc. (Orlando, FL)
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Campbell, Christian X, and Marra, John J. Damping element for reducing the vibration of an airfoil. United States: N. p., 2013. Web.
Campbell, Christian X, & Marra, John J. Damping element for reducing the vibration of an airfoil. United States.
Campbell, Christian X, and Marra, John J. Tue . "Damping element for reducing the vibration of an airfoil". United States. https://www.osti.gov/servlets/purl/1108601.
@article{osti_1108601,
title = {Damping element for reducing the vibration of an airfoil},
author = {Campbell, Christian X and Marra, John J},
abstractNote = {An airfoil (10) is provided with a tip (12) having an opening (14) to a center channel (24). A damping element (16) is inserted within the opening of the center channel, to reduce an induced vibration of the airfoil. The mass of the damping element, a spring constant of the damping element within the center channel, and/or a mounting location (58) of the damping element within the center channel may be adjustably varied, to shift a resonance frequency of the airfoil outside a natural operating frequency of the airfoil.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {11}
}

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