Transmissibility Study of a Flexibly Mounted Rolling Element Bearing in a Porous Bearing Squeeze-Film Damper

[+] Author and Article Information
C. Cusano

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, Ill.

P. E. Funk

University of Evansville, Evansville, Ind.

J. of Lubrication Tech 99(1), 50-56 (Jan 01, 1977) (7 pages) doi:10.1115/1.3452989 History: Received September 23, 1975; Revised November 19, 1975; Online October 20, 2010


The purpose of this investigation is to study the transmissibility characteristics of a centrally preloaded porous bearing squeeze-film damper supporting a rolling element bearing. Using the short-bearing approximation and isothermal, incompressible lubrication, transient and steady-state data are presented which show that, for the range of parameters considered, porous bearing dampers exhibit superior transmissibility characteristics over equivalent dampers using solid bearings. The data presented are for squeeze-film porous bearings having a wall thickness-to-length ratio of 0.1 and three degrees of permeability, including the case of zero permeability which corresponds to a solid bearing.

Copyright © 1977 by ASME
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