skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System for damping vibrations in a turbine

Patent ·
OSTI ID:1226824

A system for damping vibrations in a turbine includes a first rotating blade having a first ceramic airfoil, a first ceramic platform connected to the first ceramic airfoil, and a first root connected to the first ceramic platform. A second rotating blade adjacent to the first rotating blade includes a second ceramic airfoil, a second ceramic platform connected to the second ceramic airfoil, and a second root connected to the second ceramic platform. A non-metallic platform damper has a first position in simultaneous contact with the first and second ceramic platforms.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
9,194,238
Application Number:
13/687,027
OSTI ID:
1226824
Resource Relation:
Patent File Date: 2012 Nov 28
Country of Publication:
United States
Language:
English

References (17)

Ceramic rotor blade assembly for a gas turbine engine patent September 1978
Aerofoil blade damping patent April 1990
Vibration damping of gas turbine engine buckets patent October 1992
Large composite core structures formed by vacuum assisted resin transfer molding patent May 1999
Deformable structure for protection of vehicle occupants patent December 1999
Blade damper and method for making same patent March 2002
Apparatus and method for rotor damping patent December 2002
Process and device for growing single crystals patent June 2006
Separable blade platform patent October 2007
Bucket vibration damper system patent June 2010
Noise reduction system patent July 2010
Turbine blade with detached platform patent January 2011
Integral turbine blade and platform patent July 2011
Turbine blade with spar and shell patent April 2012
Hybrid Ceramic Matrix Composite Turbine Blades for Improved Processability and Performance patent-application July 2005
Segmented Ceramic Matrix Composite Turbine Airfoil Component patent-application July 2010
Adaptor Assembly For Coupling Turbine Blades To Rotor Disks patent-application November 2012

Related Subjects