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TECHNICAL PAPERS

Analysis of Damage of Ball Bearings of Aeronautical Transmissions by Auto-Power Spectrum and Cross-Power Spectrum

[+] Author and Article Information
Massimo Cavacece

Department of Industrial Engineering, University of Cassino, Via G. Di Biasio, No. 43 03043 Cassino (FR)-Italye-mail: cavacece@unicas.it

Alberto Introini

Agusta un’Azienda Finmeccanica, Divisione Trasmissioni, Via G. Agusta No. 520, 21017 Cascina Costa di Samarate (VA)-Italye-mail: att@agusta.it

J. Vib. Acoust 124(2), 180-185 (Mar 26, 2002) (6 pages) doi:10.1115/1.1448320 History: Received November 01, 2000; Revised July 01, 2001; Online March 26, 2002
Copyright © 2002 by ASME
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References

Figures

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Waterfall of the Discrete Fourier Transform of signal X
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Waterfall of the Auto Power Spectrum of signal X
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Auto Power Spectrum of ninth hour
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Max Value of APS around 380 Hz
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Numerical Integral of the APS of signal X
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Waterfall of Cross Power Spectrum
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Cross Power Spectrum of ninth hour
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Max Value of CPS around 380 Hz
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%THD+Noise present in the APS

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