Publication detail

Static Equilibrium Position, Velocity and Pressure Fields at Static Analysis of Long Noncavitating Elliptical and Offset Journal Bearings

RAK, V. MALENOVSKÝ, E. POCHYLÝ, F.

Czech title

Staticky rovnovážná poloha, rychlostní a tlakové pole dlouhých nekavitujících kluzných ložisek

English title

Static Equilibrium Position, Velocity and Pressure Fields at Static Analysis of Long Noncavitating Elliptical and Offset Journal Bearings

Type

conference paper

Language

en

Original abstract

This contribution deals with computational modelling of static analysis of long non-cavitating journal bearings. In this contribution is presented a new theoretical approach to the modelling of a static behaviour of the rigid rotating body in real liquid. 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 description of the geometrical configuration and also for approximation of velocity and pressure functions. The combined ALE (Arbitrary Lagrange-Euler) method is used, because it's necessary to generate a new net (perform new meshing) for a change of the shaft position. Some results of the numerical solution of the model task are presented in this contribution.

Czech abstract

Příspěvek se zabývá výpočtovou analýzou statických a dynamických vlastností hydrodynamických kluzných ložisek.

English abstract

This contribution deals with computational modelling of static analysis of long non-cavitating journal bearings. In this contribution is presented a new theoretical approach to the modelling of a static behaviour of the rigid rotating body in real liquid. 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 description of the geometrical configuration and also for approximation of velocity and pressure functions. The combined ALE (Arbitrary Lagrange-Euler) method is used, because it's necessary to generate a new net (perform new meshing) for a change of the shaft position. Some results of the numerical solution of the model task are presented in this contribution.

Keywords in Czech

Kluzná ložiska, výpočtové modelování, Bézierova tělesa, Navier-Stokesova rovnice

Keywords in English

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

RIV year

2003

Released

01.01.2003

Publisher

Croatian Society of Mechanics

Location

Bizovac

ISBN

953-96243-4-7

Book

4th ICCSM EXTENDED ABSTRACTS of 4th International Congres of Croatian Society of Mechanics

Edition number

1

Pages count

8

BIBTEX


@inproceedings{BUT14074,
  author="Vladimír {Rak} and Eduard {Malenovský} and František {Pochylý},
  title="Static Equilibrium Position, Velocity and Pressure Fields at Static Analysis of Long Noncavitating Elliptical and Offset Journal Bearings",
  booktitle="4th ICCSM EXTENDED ABSTRACTS of 4th International Congres of Croatian Society of Mechanics",
  year="2003",
  month="January",
  publisher="Croatian Society of Mechanics",
  address="Bizovac",
  isbn="953-96243-4-7"
}