Publication detail

Oil Film Flow Stability of Long Lemon and Offset Bearings

RAK, V. MALENOVSKÝ, E. POCHYLÝ, F.

Original Title

Oil Film Flow Stability of Long Lemon and Offset Bearings

Type

conference paper

Language

English

Original Abstract

This contribution deals with computational modelling of oil film flow stability of long non-cavitating journal bearings. In this contribution is presented a new theoretical approach to the modelling of static and dynamic 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. Oil film flow stability is analysed through an eigenvalue problem. Some results of the numerical solution of the model task are presented in this contribution.

Keywords

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

Authors

RAK, V.; MALENOVSKÝ, E.; POCHYLÝ, F.

RIV year

2003

Released

1. 1. 2003

Publisher

Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic

Location

Svratka

ISBN

80-86246-18-3

Book

Engineering Mechanics 2003, Book of Extended Abstracts

Edition number

1

Pages from

294

Pages to

303

Pages count

10

BibTex

@inproceedings{BUT14076,
  author="Vladimír {Rak} and Eduard {Malenovský} and František {Pochylý}",
  title="Oil Film Flow Stability of Long Lemon and Offset Bearings",
  booktitle="Engineering Mechanics 2003, Book of Extended Abstracts",
  year="2003",
  number="1",
  pages="10",
  publisher="Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic",
  address="Svratka",
  isbn="80-86246-18-3"
}