Bearing Capacity Analysis of Spherical Hybrid Gas Bearings with Tangential Gas Supply

DOI

10.2991/emcs-17.2017.307How to use a DOI?

Keywords

Lubrication analysis mathematical model; Finite difference method; Hybrid gas bearings; Tangential gas supply; Bearing capacity

Abstract

In order to research the static performances of the spherical spiral groove hybrid gas bearings, the lubrication analysis mathematical model of spherical hybrid gas bearings is established with variable tangential angels of gas supply. Subsequently, the mathematical model is transformed by derivatives and integrals methods and finite difference method. Homogeneous coordinate system of hybrid gas bearings is established in this process, and transformation with angle retained and oblique coordinate transformation are employed to the mathematical model. The difference expressions of gas film stable pressure control equations are established. The method of dividing grids is employed to the solution region, so the stable pressure distribution of gas film is numerically calculated by using VC++6.0 software. The bearing capacity is obtained by integration of gas film circumferential and radial pressure. The influence law of supply pressure and supply tangential angle on bearing capacity is researched in different eccentricity and speed. The results show that parameters of gas bearings need to be chosen properly to get better bearing capacity.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Chenhui Jia
AU  - Jing Gao
AU  - Ming Qiu
AU  - Wensuo Ma
PY  - 2017/03
DA  - 2017/03
TI  - Bearing Capacity Analysis of Spherical Hybrid Gas Bearings with Tangential Gas Supply
BT  - Proceedings of the 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017)
PB  - Atlantis Press
SP  - 1598
EP  - 1604
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcs-17.2017.307
DO  - 10.2991/emcs-17.2017.307
ID  - Jia2017/03
ER  -