| 摘要 |
<p>A vibration damper (30) is disposed between each adjacent pair of turbine buckets (10) of a gas turbine engine to act in a V-shaped groove defined by bevelled platform surfaces (20) of the adjacent buckets (10). The damper (30) is wedge-shaped in cross section and is provided with a pad (40) on one side and two pads (36,38) on another side. When the damper (30) is propelled into the groove by centrifugal force (44), it assumes a consistent equilibrium position with the raised surface (40) of the one pad slidingly engaging one of the platform bevelled surfaces (26) and the raised surfaces of the other two pads (36,38) slidingly engaging the other bevelled platform surface to dissipate vibrational energy in the buckets (10). <IMAGE></p> |
