Publication detail

Computational modelling of analysis of stability behaviour of oil-film in Journal bearings

RAK, V. Malenovský, E. Pochylý, F.

Czech title

Výpočtová analýza stability proudění olejového filmu kluzných ložisek

English title

Computational modelling of analysis of stability behaviour of oil-film in Journal bearings

Type

conference paper

Language

cs

Original abstract

Příspěvek se zabývá výpočtovou analýzou stability chování olejového filmu hydrodynamických kluzných ložisek.

Czech abstract

Příspěvek se zabývá výpočtovou analýzou stability chování olejového filmu hydrodynamických kluzných ložisek.

English abstract

This contribution deals with computational modelling of journal bearing analyses. In this contribution a new theoretical approach to the modelling of static and dynamic behaviour of the rigid rotating body in real liquid is presented. The approach is based on the application of Navier-Stokes motion eq., equation of continuity and boundary conditions eqs. It is possible to separate the motion of the rigid body and real liquid from each other using suitable transformation relations and then it is also possible to separate the stationary and nonstationary motions from each other. A method of control volumes is used for these analyses. The Real Bézier body is used for the description of the geometrical configuration and also for the approximation of velocity and pressure functions. The combined ALE (Arbitrary Lagrange-Euler) method is used, because it´s necessary to generate a new net (to perform new meshing) for a change of the shaft position. Oil-film stability is solved through the eigenvalue problem. Some results of the numerical solution of the model task are presented in this contribution.

Keywords in Czech

Kluzná ložiska, Béziérova tělesa, výpočtové modelování, Navier-Stokesova rovnice, Stabilita olejového filmu

Keywords in English

journal bearings, computational modelling, Navier-Stokes eq., Bézier Body application

RIV year

2004

Released

08.11.2004

Publisher

ZČU Plzeň

Location

Hrad Nečtiny

ISBN

80-7043-314-0

Book

Computational mechanics 2004

Pages count

8

BIBTEX


@inproceedings{BUT14532,
  author="Vladimír {Rak} and Eduard {Malenovský} and František {Pochylý},
  title="Výpočtová analýza stability proudění olejového filmu kluzných ložisek",
  booktitle="Computational mechanics 2004",
  year="2004",
  month="November",
  publisher="ZČU Plzeň",
  address="Hrad Nečtiny",
  isbn="80-7043-314-0"
}