Název: Efficient numerical computation of the steady-state response and stability analysis of the rotor systems with squeeze film dampers
Autoři: Molčan, M. ; Ferfecki, P. ; Zapoměl, Jaroslav
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Conference Engineering Mechanics 2020 /26./, Brno (CZ), 20201124
Rok: 2020
Jazyk: eng
Abstrakt: The aim of this paper is to demonstrate capabilities of the created numerical procedure, which is based on harmonic balance method. Furthermore, the procedure incorporates the alternating frequency-time domain technique and the arc-length parameterization to solve the steady-state response of nonlinear systems in efficient manner, including unstable branches. The stability of the motion was assessed by two methods: the 2n-pass method and Hill’s method. The procedure was verified on an example from literature to prove its sufficient accuracy and subsequently, the procedure was applied on the finite element model of the rotor systém mounted on the squeeze film dampers. The carried out computational simulations confirmed that the created procedure is efficient for the strongly nonlinear response and it gives similar results as the time integration.
Klíčová slova: flexible rotor; Floquet theory; harmonic balance method; Hill’s method; nonlinear forces
Zdrojový dokument: ENGINEERING MECHANICS 2020, ISBN 978-80-214-5896-3, ISSN 1805-8248

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: https://www.engmech.cz/im/doc/EM2020_proceedings.pdf
Původní záznam: http://hdl.handle.net/11104/0316859

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-433042


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference