An arrangement for attenuating vibrations of blades (2) attached to a peripheral surface (6) of a rotor (1) of an axial turbine.
   A through hole (10) is formed in each rotor blade (2) in a generally thickness direction of the blade (2) so that the through holes (10) in combination define a single annular passage near a rotor surface (6) when all of the rotor blades (2) are attached to the rotor (1). A wire (11) is provided to extend through the aligned through holes (10). Thus, the wire (11) frictionally contacts the through holes (10) when the blades (2) are caused to vibrate due to a gas pressure and a centrifugal force generated upon operation of the axial turbine.
Friction contact between the wire (11) and the through holes (10) attenuates vibrations of the blades (2).