FIELD: machine building.
SUBSTANCE: invention relates to dampers for damping vibrations of working blades and discs of aircraft gas turbine engines, specifically devices for damping vibrations of working wheel of blisk type (mono-wheel). Vibration damping device of impellers of turbine engine includes a damping element formed as an elastic tape wound in a tight spiral in several layers, bonded and fixed radial pin with an interference fit on a cylindrical surface or conical rim blisk. Elastic strip may have a variable width along length and/or thickness. Cross section of elastic tape has a trough shape. Elastic tape is made of material with high internal friction. Material with high internal friction is a composite material
EFFECT: higher strength and reliability of the impellers of blisk type gas turbine engine.
5 cl, 5 dwg
