On the stability of Jeffcott rotor in fluid-film bearings

• Autorzy: Stegic M. , Vrankovic N. , Kranjčevic N.
• Konferencja: 8th International Conference on Numerical Methods in Continuum Mechanics (September 19-24, 2000 ; Liptovsky Ján, Low Tatras ; Slovakia)
• Języki publikacji: EN

Abstrakty

EN

For some combinations of rotor speed and radial load, the pressure field of bearing fluid can perturb the pure rotational motion and disturb the normal operation of a rotating machine. Classical approach to the stability analysis of Jeffcott rotor in fluid-film bearings is modelling bearings as spring-damper elements and disregarding the external rotor damping [1,2]. 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 [3,4].

Słowa kluczowe

EN

fluid-film; Jeffcott rotor

PL

przepływ płynu; wirnik Jeffcotta

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2002
• Tom: Vol. 9, No. 4
• Strony: 573--581
• Opis fizyczny: Bibliogr. 14 poz., wykr.

Twórcy

autor

Stegic M.

• University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Department of Engineering Mechanics, PO Box 102, 10 002 Zagreb, Croatia

autor

Vrankovic N.

• University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Department of Engineering Mechanics, PO Box 102, 10 002 Zagreb, Croatia

autor

Kranjčevic N.

• University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Department of Engineering Mechanics, PO Box 102, 10 002 Zagreb, Croatia

Bibliografia

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