Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015

Analysis of Misalignment Journal Bearings Considering the Turbulent Effects

Authors
Fanwei Meng, Rui Liu, Po Qu, Guohui Xu
Corresponding Author
Fanwei Meng
Available Online November 2015.
DOI
10.2991/iccet-15.2015.4How to use a DOI?
Keywords
wear damage; turbulence effect; misalignment; oil pressure
Abstract

In order to investigate the cause of the typical bush rupture and wear damages in the journal bearing of the steam turbine generator set. The misalignment bearing analysis model of considering lubrication turbulence effects was established. The pressure, thickness distribution of the oil film is obtained. Compared with the alignment results, analysis results can be well explains the bearing bush burst at bearings maximum pressure place due to bearing misalignment, resulting in the film maximum pressure is off-center position, and larger than normal result. The bearing bush burst make friction being intensified, the oil temperature increasing, the viscosity drop, eccentricity bigger, attitude angle smaller, bearing point down, the minimum film thickness smaller, thus causing the wear damages until shutdown. It explains the bearing failure phenomena studied in this paper that bush occurred half wear and bearing rupture location downstream of the minimum film thickness position.

Copyright
© 2015, 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/).

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Volume Title
Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
Series
Advances in Engineering Research
Publication Date
November 2015
ISBN
978-94-6252-134-6
ISSN
2352-5401
DOI
10.2991/iccet-15.2015.4How to use a DOI?
Copyright
© 2015, 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/).

Cite this article

TY  - CONF
AU  - Fanwei Meng
AU  - Rui Liu
AU  - Po Qu
AU  - Guohui Xu
PY  - 2015/11
DA  - 2015/11
TI  - Analysis of Misalignment Journal Bearings Considering the Turbulent Effects
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 18
EP  - 22
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.4
DO  - 10.2991/iccet-15.2015.4
ID  - Meng2015/11
ER  -