Publication detail
Oil Film Flow Stability of Long Elliptical and Offset Journal Bearings
RAK, V. Malenovský, E. Pochylý, F.
Czech title
Stabilita olejového filmu dlouhých eliptických a přesazených hydrodynamických kluzných ložisek
English title
Oil Film Flow Stability of Long Elliptical and Offset Journal Bearings
Type
conference paper
Language
en
Original abstract
This contribution is consider with computational modelling of oil film flow stability in long elliptical, offset and elliptical-offset noncavitating journal bearings. In this contribution is presented new theoretical approach to the modelling of dynamic behaviour of the rigid rotating shaft in real liquid. The approach is based on application of the Navier-Stokes eq., equition of continuity and time initial boundary conditions eqs. It is possible to separate the motion of rigid body and liquid from each other using suitable transformation relations and then it is possible to separate the stationary and nonstationary motions from each other. The real Bézier body is used for description of the geometrical configuration and also for approximation of velocity and pressure functions. Oil film flow stability is analyzed through an eigenvalue problem. Some results of numerical solution of the model task are presented.
Czech abstract
Příspěvek se zabývá výpočtovou analýzou stability olejového filmu dlouhých eliptických a přesazených hydrodynamických kluzných ložisek.
English abstract
This contribution is consider with computational modelling of oil film flow stability in long elliptical, offset and elliptical-offset noncavitating journal bearings. In this contribution is presented new theoretical approach to the modelling of dynamic behaviour of the rigid rotating shaft in real liquid. The approach is based on application of the Navier-Stokes eq., equition of continuity and time initial boundary conditions eqs. It is possible to separate the motion of rigid body and liquid from each other using suitable transformation relations and then it is possible to separate the stationary and nonstationary motions from each other. The real Bézier body is used for description of the geometrical configuration and also for approximation of velocity and pressure functions. Oil film flow stability is analyzed through an eigenvalue problem. Some results of numerical solution of the model task are presented.
Keywords in Czech
Kluzná ložiska, Bézierova tělesa, Stabilita olejového filmu, výpočtové modelování
Keywords in English
Computaional Modelling, Journal Bearings, Navier-Stokes eq., Bézier Body Applications
Released
01.01.2003
Location
Liberec
ISBN
80-7083-734-9
Book
6th International Conference on Vibration Problems 2003 - Conference Proceedings
Pages count
2
BIBTEX
@inproceedings{BUT25162,
author="Vladimír {Rak} and Eduard {Malenovský} and František {Pochylý},
title="Oil Film Flow Stability of Long Elliptical and Offset Journal Bearings",
booktitle="6th International Conference on Vibration Problems 2003 - Conference Proceedings",
year="2003",
month="January",
address="Liberec",
isbn="80-7083-734-9"
}