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"
}