FIELD: machine building.
SUBSTANCE: invention relates to the blades system (11) comprising a rotor (12) and several blades (14) distributed along the perimeter (U) of the rotor (12) in form of rim (10), wherein two neighbouring blades (14) of the rim (10) create a pair (a, b, b', b'', d, e, h) of blades, between its blades (14) a dampening element (A, B, B', B'', D, E, H) is located, and wherein due to centrifugal force acting in radial direction (R) during the rotor (12) rotation around the rotor axis each dampening element (A, B, B', B'', D, E, H) contacts with two blades (14) of the appropriate pair (a, b, b', b'', d, e, h) of blades. To ensure frequency dissonance of the oscillating properties of the blades (14) resulting in absence of the necessity in machining of the blade body (22), it is suggested that the blade rim (10) has at least two pairs (a, b, b', b'', d, e, h) of blades having different dampening elements (A, B, B', B'', D, E, H).
EFFECT: improved design.
4 cl, 7 dwg
