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RESEARCH PAPERS

The Oscillating Fluid Mechanics Method (OFMM) for Studying Oil Film Oscillation and Dynamic Characteristics of Journal Bearings

[+] Author and Article Information
Chen Zuoyi, Sun Yongzhong

Department of Thermal Engineering, Tsinghua University, Beijing, China

J. Tribol 118(1), 239-245 (Jan 01, 1996) (7 pages) doi:10.1115/1.2837085 History: Received December 28, 1993; Revised September 13, 1994; Online January 24, 2008

Abstract

A new method to study oil film oscillation and to determine the unstable rotational speed and rotordynamic coefficients of bearings is presented. Differences between the new method called the Oscillating Fluid Mechanics Method (OFMM) and the previous method (quasi-steady state method) are discussed. Insufficiencies of the previous method are analyzed. The theory and calculational procedure of OFMM are given. Calculated results show that this new method provides significantly improved predictions.

Copyright © 1996 by The American Society of Mechanical Engineers
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