Publication detail
Effective thrust bearing model for simulations of transient rotor dynamics
NOVOTNÝ, P. HRABOVSKÝ, J. JURAČKA, J. KLÍMA, J. HORT, V.
English title
Effective thrust bearing model for simulations of transient rotor dynamics
Type
journal article in Web of Science
Language
en
Original abstract
The paper introduces a new fast combined analytical and numerical computation model of thrust bearing, which can be applied to analyse the transient rotor dynamics of rotating machines. The bearing model is designed to allow an efficient solution to long-term processes while retaining its high-level capability to describe the bearing dynamics and tribology. The model includes the effects of lubricant inlet temperature and pressure and also effects of temperature, shear rate and inertia of the bearing lubricant layer. This bearing model used in the virtual turbocharger allows detailed analysis of both the design of the bearing itself and the vibration and noise issues of the turbocharger. The results obtained through the bearing model are verified using Computational Fluid Dynamics (CFD) and by technical experiments on real exhaust gas turbochargers.
English abstract
The paper introduces a new fast combined analytical and numerical computation model of thrust bearing, which can be applied to analyse the transient rotor dynamics of rotating machines. The bearing model is designed to allow an efficient solution to long-term processes while retaining its high-level capability to describe the bearing dynamics and tribology. The model includes the effects of lubricant inlet temperature and pressure and also effects of temperature, shear rate and inertia of the bearing lubricant layer. This bearing model used in the virtual turbocharger allows detailed analysis of both the design of the bearing itself and the vibration and noise issues of the turbocharger. The results obtained through the bearing model are verified using Computational Fluid Dynamics (CFD) and by technical experiments on real exhaust gas turbochargers.
Keywords in English
Thrust bearing; Hydrodynamic lubrication; Time domain; Multibody transient dynamics; Turbocharger
Released
28.06.2019
Publisher
Elsevier B.V.
Location
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN
0020-7403
Volume
157
Number
2019
Pages from–to
374–383
Pages count
19
BIBTEX
@article{BUT156965,
author="Pavel {Novotný} and Jozef {Hrabovský} and Jaroslav {Juračka} and Jiří {Klíma} and Vladimír {Hort},
title="Effective thrust bearing model for simulations of transient rotor dynamics",
year="2019",
volume="157",
number="2019",
month="June",
pages="374--383",
publisher="Elsevier B.V.",
address="PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND",
issn="0020-7403"
}