Original title: Spektrální a modální analýza rotoru na aerodynamických ložiskách jako evolutivního systému
Translated title: Spectral and modal analysis of the rotor on aerodynamic bearings as an evolutive system
Authors: Kozánek, Jan ; Půst, Ladislav
Document type: Papers
Conference/Event: International Conference on the Theory of Machines and Mechanisms /IX./, Liberec (CZ), 2004-08-31 / 2004-09-02
Year: 2004
Language: cze
Abstract: [cze] [eng]
Byly analyzovány spektrální a (globální) modální vlastnosti matematického modelu kmitání tuhého rotoru na aerodynamických ložiskách jako evolutivního systému, závislého na otáčkách rotoru. Model je lineární, ale nekonzervativní a je popsán nesymetrickými maticemi tuhosti a viskozního tlumení. The spectral and modal properties of simple mathematical model of the rotor supported on the aerodynamic bearings are analysed. The model is linear, but with non-symmetric matrices and with non-commutative (non-proportional) damping matrix corresponding to the stiffness and damping of aerodynamic tilting-pad journal bearings. Because of the reason that the bearing stiffness and damping are the functions of the angular velocity - turning of the rotor, the model must be considered as evolutive.
Keywords: evolutive system; rotor on aerodynamic bearings
Project no.: CEZ:AV0Z2076919 (CEP), IBS2076301 (CEP)
Funding provider: GA AV ČR
Host item entry: International conference on the theory of machines and mechanisms : proceedings, ISBN 80-7083-847-7

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0010872

Permalink: http://www.nusl.cz/ntk/nusl-19589


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers