By Topic

Turbulent model analysis and experimental research for lubrication performance of large power units journal bearing

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Feng Ji ; Key Lab. of Minist. of Educ. for Modern, Design & Rotor-Bearing Syst., Xi''an Jiaotong Univ., Xi''an, China ; Yong Guo ; Xiaoyang Yuan ; Ling Yang
more authors

The suitability of different turbulent models for journal bearings needs to be analyzed from both their static and dynamic performances. In this paper, based on experimental results and theoretical results under different turbulent models, including Ng-Pan, Philip Aoki, Constantinescu and Hirs model, that which turbulent model is appropriate to analyze the static and dynamic performance of large power unit journal bearings is studied. The comparison between the theoretical and experimental results shows that the theoretical results in Ng-Pan turbulent model are the closest to the test results for a Phi360 mm elliptical journal bearing. But for a Phi480 mm elliptical journal bearing, the most suitable turbulent model to the test results is Philip Aoki model. The comparative results also show that the relative flow difference of journal bearing among the different turbulent models is less than 6%; in the rated speed (3000 rpm) condition, the largest and the smallest difference in calculated results in different turbulent models is about 20.7% in main vertical stiffness, and about 10.1% in the main vertical damping.

Published in:

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Date of Conference:

25-27 May 2009