Gas turbine rotor blade vibration damping system

摘要

The damping means consists of a passage 22, 23 within the blade aerofoil within which fits a pin which is retained to the aerofoil at its root end 26-29. The pin chunk 24, 25 is free to permit relative sliding with respect to the passage and friction between the pin and the passage absorbs energy and hence damps the vibration, the pin arranged not to be on a radius of the rotor, centrifugal force enhancing the friction. IMAGE