THEORETICAL AND APPLIED MECHANICS

TEORIJSKA I PRIMENJENA MEHANIKA  2004 Vol.31 (1), pp.73-83

Summary: 

Inga M. Arkhipova

Dynamics of a rigid rotor in the elastic bearings

As a rule in the studies of a rigid rotor in the elastic bearings the authors consider the linear system corresponding to the plane-parallel motion and the effect of self-centring under unlimited growth of the rotation frequency. In the present paper rotor is considered as a mechanical system with four degrees of freedom. Different motions of a statically and dynamically unbalanced vertical rotor supported in the non-linear bearings are studied.

Keywords: unbalanced rotor, cubic non-linear elastic bearings, hard restoring forces, direct synchronous precession, symmetric precession, hyperboloidal precession, internal friction.