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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

Brennan,  M. J., Elliot,  S. J., and Heron,  K. H., 1988, “Noise Propagation Through Helicopter Gearbox Support Struts—An Experimental Study,” ASME J. Vibr. Acoust., 120, pp. 695–704.
Lee,  S. K. and White,  P. R., 1998, “Two-Stage Adaptive Line Enhancer and Sliced Wigner Trispectrum for the Characterization of Faults from Gear Box Vibration Data,” ASME J. Vibr. Acoust., 121, pp. 488–494.
Dellomo,  M. R., 1999, “Helicopter Gearbox Fault Detection: a Neural Network Based Approach,” ASME J. Vibr. Acoust., 121, pp. 265–272.
Ono,  K., and Okada,  Y., 1988, “Analysis of Ball Bearing Vibrations Caused by Outer Race Waviness,” ASME J. Vibr. Acoust., 120, pp. 901–908.
Choudhury,  A., and Tandon,  N., 1998, “A Theoretical Model to Predict Vibration Response of Rolling Bearings to Distributed Defects Under Radial Load,” ASME J. Vibr. Acoust., 120, pp. 214–220.
Berry, J. E., 1991, “How to Track Rolling Element Bearing Health with Vibration Signature Analysis,” Sound and Vibration, pp. 24–35.
Meirovitch, L., 2001, Fundamentals of Vibrations, McGraw-Hill.
Oppenheim, A. V., and Schafer, R. W., (1989), Discrete Time Signal Processing, Prentice—Hall International, Inc.
Wirsching, P. H., Paez, T. L., and Ortiz, K., 1995, Random Vibrations Theory and Practice, John Wiley & Sons.

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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