Publication detail
The Comparison of Additional Effects of Journal Bearings Calculated Using the Reynolds and Navier Stokes Equations
MALENOVSKÝ, E. POCHYLÝ, F.
Czech title
The Comparison of Additional Effects of Journal Bearings Calculated Using the Reynolds and Navier-Stokes Equations
English title
The Comparison of Additional Effects of Journal Bearings Calculated Using the Reynolds and Navier Stokes Equations
Type
conference paper
Language
en
Original abstract
The contribution gives a brief explanation of a new theory concerning the analysis of dynamic properties of journal bearings, which is based on the Navier Stokes (NS), equation. The analysis comprises of two steps. First the analysis of the stationary movement is carried out and then the non-stationary analysis (dynamic). Movement of the body and fluid can be separated from one another through appropriate transformation. The additional fluid effects, which are mass, damping and stiffness tensors, are only a function of the position of the shaft center. The model sample provides a comparison with the solution obtained as based on the Reynolds (Re) equation.
Czech abstract
V příspěvku je uveden teoretický přístup k analýze a přístup k výpočtovému modelování dynamických vlastností tenkých tekutinových vrstev. Je uvedeno porovnání řešení dle dvou přístupů. První přístup vychází z transformace, která má tvar konvolutorního integrálu. Pokud je tekutina stlačitelná, má tento přístup značné omezení. V takovém případě musí být pro separování pohybu tělesa a tekutiny použita jiná transformace. V tomto případě nemá transformace tvar konvolutorního integrálu. Ze závislostí komplexní dynamické síly na frekvenci buzení lze stanovit tenzory přídavných účinků
English abstract
The contribution gives a brief explanation of a new theory concerning the analysis of dynamic properties of journal bearings, which is based on the Navier Stokes (NS), equation. The analysis comprises of two steps. First the analysis of the stationary movement is carried out and then the non-stationary analysis (dynamic). Movement of the body and fluid can be separated from one another through appropriate transformation. The additional fluid effects, which are mass, damping and stiffness tensors, are only a function of the position of the shaft center. The model sample provides a comparison with the solution obtained as based on the Reynolds (Re) equation.
Keywords in Czech
Journal Bearings, Reynolds Equation, Navier-Stokes Equation, additional mass, damping, stiffness, computational modelling.
Keywords in English
Journal Bearings, Reynolds Equation, Navier-Stokes Equation, additional mass, damping, stiffness, computational modelling.
RIV year
2004
Released
01.04.2004
Location
Tianjin
ISBN
1-86058-447-0
Book
Proceedings of the 11th world congress in mechanism and machine science
Edition number
1
Pages count
10
BIBTEX
@inproceedings{BUT12168,
author="Eduard {Malenovský} and František {Pochylý},
title="The Comparison of Additional Effects of Journal Bearings Calculated Using the Reynolds and Navier Stokes Equations",
booktitle="Proceedings of the 11th world congress in mechanism and machine science",
year="2004",
month="April",
address="Tianjin",
isbn="1-86058-447-0"
}