FIELD: mechanical engineering. SUBSTANCE: damper has small movable masses. The mass axis of movement is inclined to the axis of rotation of a washer. The sawing is accompanied by oscillations. As a result the movable masses are displaced by a value of dynamic balance, this causes variation of mass inertia moment and reduces the amplitude of forced oscillations. The oscillations are damped when the disturbing moment frequency is equal to the oscillation frequency of the movable masses in the bearing washer. EFFECT: improved structure. 2 dwg
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