Dynamic Behavior of Pure Squeeze Films in Narrow Porous Bearings

[+] Author and Article Information
P. R. K. Murti

Indian Institute of Technology, Kharagpur-2, W. Bengal, India

J. of Lubrication Tech 96(3), 361-364 (Jul 01, 1974) (4 pages) doi:10.1115/1.3451964 History: Received September 19, 1973; Online October 18, 2010


The dynamic behavior of squeeze film in a narrow porous journal bearing under a cyclic load is analyzed. A thin-walled bearing with a nonrotating journal is considered and a closed form expression for the pressure distribution is derived. The locus of the journal center is found by numerical methods and it is established with an example that actual contact between the journal and bearing can be avoided by appropriate design of the bearing. Consequently, it is proved that pure squeeze films have a load capacity only under cyclic loads. The analysis also reveals that the permeability of the bearing material and the wall thickness of the bearing influence significantly the operating eccentricity ratio.

Copyright © 1974 by ASME
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