FIELD: motors and pumps.
SUBSTANCE: damper for the turbine rotor assembly of the gas turbine engine comprises a forward plate, an aft plate and a pocket on the forward face of the forward plate. Said forward plate’s aft face is connected to the forward face of the aft plate by means of a longitudinal structure. Area of the aft plate in the plane transverse to the longitudinal structure is greater than the area of the forward plate in the plane transverse to the longitudinal structure. Said pocket’s area is greater than half the area of the forward plate, and the width and height of the pocket is more than half the width and height of the forward plate, respectively. Said pocket’s depth is approximately from 25 to 50 % of the thickness of the forward plate. Said aft face of the forward plate includes a groove extending along the entire width of the forward plate and located below the pocket.
EFFECT: invention makes it possible to reduce the weight of the damper, as well as the flexural rigidity of the forward plate.
6 cl, 14 dwg
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