Název: Usage of modal synthesis method with condensation in rotor dynamics
Autoři: Zeman, Vladimír
Šašek, Jakub
Citace zdrojového dokumentu: Applied and Computational Mechanics. 2008, vol. 2, no. 1, p. 187-198.
Datum vydání: 2008
Nakladatel: University of West Bohemia
Typ dokumentu: article
článek
URI: http://www.kme.zcu.cz/acm/old_acm/full_papers/acm_vol2no1_p019.pdf
http://hdl.handle.net/11025/1761
ISSN: 1802-680X (Print)
2336-1182 (Online)
Klíčová slova: rotorové systémy;vibrodiagnostika;matematické modelování;výpočetní metody ve fyzice;kmitání
Klíčová slova v dalším jazyce: rotor systems;vibrodiagnostics;mathematical models;computational methods in physics;oscillations (physics
Abstrakt: The paper deals with mathematical modelling of vibration and modal analysis of rotors composed of a flexible shaft and several flexible disks. The shaft is modelled as a one dimensional continuum whereon flexible disks modelled as a three dimensional continuum are rigid mounted to shaft. The presented approach allows to introduce continuously distributed centrifugal and gyroscopic effects. The finite element method was used for shaft and disks discretization. The modelling of such flexible multi-body rotors with large DOF number is based on the system decomposition into subsystems and on the modal synthesis method with condensation. Lower vibration mode shapes of the mutually uncoupled and non-rotating subsystems are used for creation of the rotor condensed mathematical model. An influence of the different level of a rotor condensationmodel on the accuracy of calculated eigenfrequencies and eigenvectors is discussed.
Práva: © 2008 University of West Bohemia. All rights reserved.
Vyskytuje se v kolekcích:Volume 2, number 1 (2008)
Články / Articles (KME)
Volume 2, number 1 (2008)

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