Journal of Zhejiang University

Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.9 P.642-656

Inter-asperity cavitation for misalignment journal lubrication problem based on mass-conservative algorithm*

Author(s): Zhen-peng He¹,Jun-hong Zhang¹,Zhou-yu Li²,Lin Ba³,Gui-chang Zhang⁴,Kai-nan Wang¹,Xing Lu¹
Affiliation(s): 1. 1. State Key Laboratory of Engine, Tianjin University, Tianjin 300072, China more
Corresponding email(s): hezhenpeng@tju.edu.cn
Key Words: Misalignment, Cavitation, Mass-conservation, Journal bearing

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Zhen-peng He, Jun-hong Zhang, Zhou-yu Li, Lin Ba, Gui-chang Zhang, Kai-nan Wang, Xing Lu. Inter-asperity cavitation for misalignment journal lubrication problem based on mass-conservative algorithm[J]. Journal of Zhejiang University Science A, 2013, 14(9): 642-656.

@article{title="Inter-asperity cavitation for misalignment journal lubrication problem based on mass-conservative algorithm",
author="Zhen-peng He, Jun-hong Zhang, Zhou-yu Li, Lin Ba, Gui-chang Zhang, Kai-nan Wang, Xing Lu",
journal="Journal of Zhejiang University Science A",
volume="14",
number="9",
pages="642-656",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300080"
}

%0 Journal Article
%T Inter-asperity cavitation for misalignment journal lubrication problem based on mass-conservative algorithm
%A Zhen-peng He
%A Jun-hong Zhang
%A Zhou-yu Li
%A Lin Ba
%A Gui-chang Zhang
%A Kai-nan Wang
%A Xing Lu
%J Journal of Zhejiang University SCIENCE A
%V 14
%N 9
%P 642-656
%@ 1673-565X
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300080

TY - JOUR
T1 - Inter-asperity cavitation for misalignment journal lubrication problem based on mass-conservative algorithm
A1 - Zhen-peng He
A1 - Jun-hong Zhang
A1 - Zhou-yu Li
A1 - Lin Ba
A1 - Gui-chang Zhang
A1 - Kai-nan Wang
A1 - Xing Lu
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 9
SP - 642
EP - 656
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300080

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: Journal misalignment is common in journal bearings. When severe journal misalignment takes place, it affects nearly all aspects of bearing performance. This paper provided a comprehensive analysis of misaligned journal bearings based on two different mass-conservative models which appropriately took into account film rupture and reformation. The lubrication characteristics and performance parameters including the cavitation zones, pressure distribution, density distribution, oil leakage, load capacity, moment, and attitude angle were compared with the traditional lubrication model. The results showed that cavitation has great effect on bearing performances, especially when the surface roughness is large. Therefore, it is necessary to consider the effects of journal misalignment alongside inter-asperity cavitation theory in the design and analyses of journal bearings.