Detail publikačního výsledku

The effective computational model of the hydrodynamics journal floating ring bearing for simulations of long transient regimes of turbocharger rotor dynamics

NOVOTNÝ, P.; ŠKARA, P.; HLINÍK, J.

Originální název

The effective computational model of the hydrodynamics journal floating ring bearing for simulations of long transient regimes of turbocharger rotor dynamics

Anglický název

The effective computational model of the hydrodynamics journal floating ring bearing for simulations of long transient regimes of turbocharger rotor dynamics

Druh

Článek WoS

Originální abstrakt

The paper presents an efficient and numerically stable calculation model of a journal plain floating ring bear- ing. The computational model is based on the numerical solution of the Reynolds equation in combination with the analytical description of the resulting variables. This model is used in a virtual turbocharger assembled in multibody systems. This approach allows to effectively solve transient events, such as turbocharger run-up, con- sidering issues of rotor dynamics, tribology of bearings, flows of lubricant in the channels and potentially also gas flow through the sealing system. The model of the bearing includes the influence of the inlet and outlet channels and the non-cylindrical shape of the bearing surfaces. Influence of lubricant and structure temperature changes caused by shear stresses in lubrication film and related changes in the lubricant properties is also considered. The paper also presents the numerical implementation of the computational models and the verification of these models using technical experiments with the turbocharger of a diesel engine.

Anglický abstrakt

The paper presents an efficient and numerically stable calculation model of a journal plain floating ring bear- ing. The computational model is based on the numerical solution of the Reynolds equation in combination with the analytical description of the resulting variables. This model is used in a virtual turbocharger assembled in multibody systems. This approach allows to effectively solve transient events, such as turbocharger run-up, con- sidering issues of rotor dynamics, tribology of bearings, flows of lubricant in the channels and potentially also gas flow through the sealing system. The model of the bearing includes the influence of the inlet and outlet channels and the non-cylindrical shape of the bearing surfaces. Influence of lubricant and structure temperature changes caused by shear stresses in lubrication film and related changes in the lubricant properties is also considered. The paper also presents the numerical implementation of the computational models and the verification of these models using technical experiments with the turbocharger of a diesel engine.

Klíčová slova

Journal bearing Transient Turbocharger Time domain Rotor dynamics

Klíčová slova v angličtině

Journal bearing Transient Turbocharger Time domain Rotor dynamics

Autoři

NOVOTNÝ, P.; ŠKARA, P.; HLINÍK, J.

Rok RIV

2019

Vydáno

17.10.2018

Nakladatel

Elsevier B.V.

Místo

PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND

ISSN

0020-7403

Periodikum

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES

Svazek

148

Číslo

2018

Stát

Spojené království Velké Británie a Severního Irska

Strany od

611

Strany do

619

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0020740318321842

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT152001,
  author="Pavel {Novotný} and Petr {Škara} and Juraj {Hliník}",
  title="The effective computational model of the hydrodynamics journal floating ring bearing for simulations of long transient regimes of turbocharger rotor dynamics",
  journal="INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES",
  year="2018",
  volume="148",
  number="2018",
  pages="611--619",
  doi="10.1016/j.ijmecsci.2018.09.025",
  issn="0020-7403",
  url="https://www.sciencedirect.com/science/article/pii/S0020740318321842"
}

Dokumenty

Novotny-et-al-2019-TheEffectiveCompModelofHDbearing