Airfoil vibration damping device

Details Airfoil vibration damping device Airfoil vibration damping device

1995-07-31

1996-09-24

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

Changing state mass within or fluid flow through working...

416500, F01D 526

Patent

active

055584977

ABSTRACT:
A rotor blade for a rotor assembly is provided comprising a root, an airfoil, and a damper. The airfoil includes a base, a tip, a first cavity, a second cavity, and a passage. The passage includes a pair of walls converging from the first cavity to the second cavity, thereby connecting the first and second cavities. The damper is received within the passage. According to one aspect of the present invention, a difference in gas pressure across the damper biases the damper against the converging walls of the passage. According to another aspect of the present invention, centrifugal force biases the damper against the converging walls of the passage.

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patent: 5407321 (1995-04-01), Rimkunas et al.

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