초록 ▼

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 bo

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.

대표청구항 ▼

[ Accordingly, what is desired to be secured by Letters Patent of the United States is the invention as defined and differentiated in the following claims:] [1.] A gas turbine engine fan blade comprising;a metal airfoil having first and second opposite sides extending radially between a root and a t

[ Accordingly, what is desired to be secured by Letters Patent of the United States is the invention as defined and differentiated in the following claims:] [1.] 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; anda 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.