Numerical determination of resonance velocity in finite-length hydrodynamic bearings.

Abstract

This work presents a review of the calculation of classical elastic and damping coefficients obtained from theoretical models of infinitely short and infinitely long bearings. Subsequently, a calculation tool using the Finite Volume Method is
employed to determine these coefficients in real bearings using numerical differentiation. This allows the representation and simulation of the transient behavior of two bearings integrated into a mass-shaft-bearing system, and the assessment
of their stability behavior under resonance conditions, depending on the rotational speed. The developed tool provides results in excellent agreement with those reported in the literature, substantially improving calculation time. These results will enable the future addressing of problems related to dynamic loads, textures, and cavitation through linearized solutions.