Journal Asymmetric Heating—Part I: Nonstationary Bow

[+] Author and Article Information
Björn Larsson

Machine Design, Linköping University, S-581 83 Linköping, Sweden

J. Tribol 121(1), 157-163 (Jan 01, 1999) (7 pages) doi:10.1115/1.2833797 History: Received December 09, 1997; Revised May 11, 1998; Online January 24, 2008


A relation between journal vibration and asymmetric temperature in the lubricant-journal interface is derived. The bearing consists of five equally distributed tilting-pads. An arbitrary synchronous harmonic journal vibration is allowed. Heat conduction in the rotor shaft for nonstationary bearing temperature is solved. The result is presented as a frequency response of the shaft bow. Influence of air-convection and different bearing widths is investigated.

Copyright © 1999 by The American Society of Mechanical Engineers
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