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RESEARCH PAPERS

Use of dFRFs for Diagnosis of Asymmetric/Anisotropic Properties in Rotor-Bearing System

[+] Author and Article Information
Chee-Young Joh

Agency for Defense Development, P.O. Box 18, Chinhae, Kyeongnam, Korea

Chong-Won Lee

Center for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Taejon 305-701 Korea

J. Vib. Acoust 118(1), 64-69 (Jan 01, 1996) (6 pages) doi:10.1115/1.2889636 History: Received August 01, 1993; Online February 26, 2008

Abstract

The diagnostic method, which utilizes the dFRFs defined in the stationary and rotating coordinate systems, is tested with a laboratory flexible rotor-bearing system, in order to verify its effectiveness in detection of the asymmetry in shaft and the anisotropy in stator. The experimental results indicate that the dFRFs can be effectively used for the diagnosis of anisotropy and/or asymmetry in rotor systems by the investigation of two kinds of dFRF estimates using the complex input and output signals defined in the stationary and rotating coordinate systems.

Copyright © 1996 by The American Society of Mechanical Engineers
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