Short Bearing Theory Prediction of Inertial Turbulent Journal Orbits

[+] Author and Article Information
G. Capone, M. Russo

Dipartimento di Ingegneria Meccanica per l’Energetica, Università di Napoli, Naples, Italy

J. Tribol 112(4), 643-649 (Oct 01, 1990) (7 pages) doi:10.1115/1.2920310 History: Received April 10, 1989; Revised November 03, 1989; Online June 05, 2008


The proposed method enables a straightforward solution of the nonlinear equations of the cylindrical motion of rotors on journal bearings in conditions of unsteady nonlaminar hydrodynamic lubrication taking into account the inertia forces of the fluid particles. The analysis is restricted to the case of rigid supports and rigid symmetrical rotor adopting the short bearing theory. Some meaningful examples of predicted journal orbits are reported for balanced and unbalanced rotors.

Copyright © 1990 by The American Society of Mechanical Engineers
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