engleski

Computational Stability Analysis of Laval Rotor in Journal Bearings

In this paper Crandall’s bearing force-velocity model is applied to stability analysis of radial loaded Laval rotor in cylindrical fluid film bearings. A domain of rotor speed and transverse bearing loads, which provides stable support and introduces heavy damping of rotor vibration, is obtained by standard computational routines. As a result of this analysis, the stability boundary is determinated for different values of rotor damping parameters. The stability regions based on Crandall’s force-velocity model agree with practical observations of rotor dynamic behavior and with the experimental data.

Laval Rotor; Journal Bearings; Linear Force-Velocity Model; Stability

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