| 摘要 |
A rotor blade for a rotor of a gas turbine engine having an axis of rotation including a root portion, a platform portion connected to the root portion and having a damper pocket formed therein, an airfoil portion connected to the platform portion, a generally bar-shaped damping member loosely arranged in the damper pocket having at least one scrubbing surface, and at least one leg extending from the bar-shaped damping member for retaining the bar-shaped damping member in the damper pocket. The bar-shaped damping member is slidably displaceable and rotatable within the damper pocket during rotation of the rotor. The damper pocket in the platform portion has a rear surface with an upper portion and a lower portion at an angle to the upper portion, a pair of spaced side surfaces, and a pair of spaced lower surfaces extending from the rear surface lower portion which are substantially coplanar. The damper pocket lower surfaces are provided by a first blade tab extending laterally inward from one of the side surfaces and a second blade tab extending laterally inward from the other side surface, where a leg connected to the bar-shaped damping member extends through a slot in at least one of the first and second blade tabs so as to retain the bar-shaped damping member within the damper pocket.
|
