A New Cepstral Analysis Procedure of Recovering Excitations for Transient Components of Vibration Signals and Applications to Rotating Machinery Condition Monitoring-Reference-Cited by-同舟云学术

A New Cepstral Analysis Procedure of Recovering Excitations for Transient Components of Vibration Signals and Applications to Rotating Machinery Condition Monitoring

Published:2001-01-01 Issue:2 Volume:123 Page:222-229
ISSN:1048-9002
Container-title:Journal of Vibration and Acoustics
language:en
Short-container-title:

Author:

Zheng G. T.¹,Wang W. J.²

Affiliation:

1. Department of Astronautics and Applied Mechanics, Harbin Institute of Technology, Harbin, China

2. School of Engineering and Information Technology, University of Sussex, Brighton, UK

Abstract

A new cepstral analysis procedure with the complex cepstrum for recovering excitations causing multiple transient signal components from vibration signals, especially from rotor vibration signals, has been developed. Along with the problem of singularity, a major problem of the cepstrum is that it cannot provide a correct distribution of the excitations. To solve these problems, a signal preprocessing method, whose function is to provide a definition for the distribution of the excitations along the quefrency axis and remove singular points from the transform, has been added to the cepstrum analysis. With this procedure, a correct distribution of the excitations can be obtained. An example of application to the condition monitoring of rotor machinery is also presented.

Publisher

ASME International

Subject

General Engineering

Link

http://asmedigitalcollection.asme.org/vibrationacoustics/article-pdf/123/2/222/5627344/222_1.pdf

Reference21 articles.

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3. Kuo, Y. W., 1988, “A Microcomputer-Based Vibration Diagnostic System for Steam Turbines and Generators,” Vibrations in Rotating Machinery, Proceedings of the Institute of Mechanical Engineers, Heriot-Watt University, Edinburgh, UK, Sept. 13–15.

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