General Electric Company

Andrew William Miller

Ronald Ralph Cairo

Todd Garrett Wetzel

Steven Robert Hayashi

Kevin Leon Bruce

Mark Stewart Schroder

Theodore Robert Grossman

Christopher Grace

Ronald Phillip Nimmer

Roger Antonio Aparicio

Martin Peter Gill

Unwinding systems and methods are provided for unwinding a fiber from a bobbin. The unwinding system can include an axle defining a first axis extending an axial direction, a bobbin rotatably mounted around the axle, a pulley positioned to receive the fiber from the bobbin, wherein the pulley is rotatable around a second axis, and a sensor positioned between the bobbin and the pulley. The bobbin is moveable along the axial direction, and wherein the fiber extends tangentially from a surface of the bobbin.

Fiber unwinding system and methods of unwinding a fiber from a bobbin

The damper system includes a ceramic composite shroud in part defining the hot gas path of a turbine and a spring-biased piston and damper block which bears against the backside surface of the shroud to tune the vibratory response of the shroud relative to pressure pulses of the hot gas path in a manner to avoid near or resonant frequency response. The damper block has projections specifically located to bear against the shroud to dampen the frequency response of the shroud and provide a thermal insulating layer between the shroud and the damper block.

Spring mass damper system for turbine shrouds

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Lincoln University, PA, United States of America

Andrew William Miller