METHOD FOR DAMPING GAS TURBINE BLADE AND VIBRATION SHOCK DAMPER FOR IMPLEMENTATION

摘要

The invention aims at providing a turbine wheel with optimal mass dampers capable of damping a resonance determined according to a vibratory context of the turbine, in particular for slow turbines, while promoting a flexibility of adaptation to the bearing surfaces. dampers housing. To do this, the invention provides for separating the mass and flexibility functions with a flexible plating part against the platform and a driving mass portion of the friction forces. A damper (2) according to the invention comprises precisely a plate (10) and a flyweight (12), the plate (10) being stamped from a sheet of thickness substantially thinner than that of the weight (12) . The plate (10) has a wall (101) adapted to come into flexible contact with a platform of the blade of the wheel while at least partially enveloping a face (121) of the weight (12). Application in particular to turbomachine turbine, blower or LP compressor wheels with added blades.