FEATURES OF THE DYNAMICS OF AN UNBALANCED ROTOR WITH A VIBRATING AXIS
Keywords:
unbalanced rotor, axis oscillations, vibration moment, vibrational capture, slow oscillations
Abstract
Stationary (near stationary) rotation modes of an unbalanced rotor with the oscillation frequency of its axis are
considered. From the standpoint of I.I. Blekhman’s vibrational mechanics, explanations of the mechanism of vibrational
capture of the rotation of an unbalanced rotor are given; it is demonstrated that the vibration moment arising as a result of
oscillations tends to synchronize vibrational and rotational movements, that its effect after the establishment of a stationary
mode becomes unambiguous – either braking or accelerating. It is shown that when a stationary rotation mode is established,
large, relatively slow oscillations of rotor’s speed can occur. Theoretical results are confirmed by computer simullation.
