Panel damped hybrid blade
AssigneeGeneral Electric Company
InventorsJan C. Schilling, Jay L. Cornell, Joseph T. Stevenson
Life of this patent
Estimating the term…
Abstract
A fan blade includes a metal airfoil having first and second opposite sides extending radially between a root and a tip, and axially between a leading edge and a trailing edge. The airfoil further includes a pocket disposed in the first side having an elastomeric filler bonded therein. A panel is bonded to the filler along the pocket for allowing differential movement therebetween for damping vibratory response of the airfoil.
Claims20
A gas turbine engine fan blade comprising;
- a metal airfoil having first and second opposite sides extending radially between a root and a tip, and axially between a leading edge and a trailing edge for pressurizing air channeled thereover, and a pocket disposed in said first side;
- a ledge surrounding said pocket at least in part;
- an elastomeric filler bonded in said pocket;
- and
- a panel bonded to said filler and to said ledge by said filler for allowing differential movement between said panel and said airfoil for damping vibratory response of said airfoil.
A gas turbine engine rotor blade comprising an airfoil including a pocket in one side thereof surrounded at least in part by a ledge and covered by a panel bonded to said ledge by an elastomeric filler in said pocket for allowing differential movement between said panel and said airfoil for damping vibratory response of said airfoil.
Dependencies are inferred from the claim text.