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System for damping vibrations in a turbine

United States Patent

9,194,238
November 24, 2015
View the Complete Patent at the US Patent & Trademark Office
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.
Roberts, III; Herbert Chidsey (Simpsonville, SC), Johnson; Curtis Alan (Niskayuna, NY), Taxacher; Glenn Curtis (Simpsonville, SC)
GENERAL ELECTRIC COMPANY (Schenectady, NY)
13/ 687,027
20140147276
November 28, 2012
FEDERAL RESEARCH STATEMENT This invention was made with Government support under Contract No. DE-FC26-05NT42643, awarded by the Department of Energy. The Government has certain rights in the invention.