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RESEARCH PAPERS

Fluid-Film Journal Bearings Operating in a Hybrid Mode: Part II—Experimental Investigation

[+] Author and Article Information
D. Koshal

Department of Mechanical and Production Engineering, Brighton Polytechnic, Brighton, BN2 4GJ, England

W. B. Rowe

Mechanical, Marine and Production Engineering Department, Liverpool Polytechnic, Liverpool, L3 3AF, England

J. of Lubrication Tech 103(4), 566-572 (Oct 01, 1981) (7 pages) doi:10.1115/1.3251738 History: Received May 10, 1979; Online November 17, 2009

Abstract

An extensive experimental program was carried out to test the theoretical predictions discussed in Part I of this paper. The design of the bearing test rig is described. Line-source plain hybrid journal bearings have been investigated and results are presented for bearings at the optimum and higher speeds. Such parameters as load, eccentricity, oil-film pressure, speed, inlet and outlet temperatures, friction torque, oil flow-rate, and attitude angle have been measured. A description of the appropriate instrumentation is also included. Whereas close agreement was found between theory and experiment, there was a tendency for measured loads to be slightly higher than predicted, particularly as the eccentricity ratio approached a value of unity. It was also found that at high values of power ratio corresponding to higher temperature rise conditions, frictional torque was lower than predicted.

Copyright © 1981 by ASME
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