Naslov
Influence of the External Rotor Damping on the Stability of Jeffcott Rotor in Fluid-Film Bearings

Autori
Stegić, Milenko ; Vranković, Nikola ; Kranjčević, Nenad

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings on CD-rom of the 8th International Conference on Numerical Methods in Continuum Mechanics / Kompiš, Vladimir ; Žmindak, Milan ; Maunder, Edward A.W. - Žilina : University of Žilina, 2000, 1-11

Skup
8th International Conference on Numerical Methods in Continuum Mechanics

Mjesto i datum
Liptovský Ján, Slovačka, 19.09.2000. - 24.09.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fluid-Film Bearing; Stability of Jeffcott Rotor; Nonlinear Model of Bearing Force; Linearization of Equations of Motion; External Rotor Damping

Sažetak
For some combinations of rotor speed and radial load, the pressure field of bearing fluid can perturb the pure rotational motion and disturbs the normal operation of a rotating machine. A classical approach to the stability analysis of Jeffcott rotor in fluid-film bearings is modelling of bearings as springer-damper elements and disregarding the external rotor damping [7] and [8]. Nonlinear models are used to verify results obtained from a linearized model. This paper deals with the influence of external rotor damping on the size of stability regions. Stability analysis of the Jeffcott rotor in fluid-film bearings is performed by using both the linear model based on the linearization of bearing force around the static equilibrium position and the nonlinear model of the velocity linearization [10].

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA