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Health Monitoring of LAV Planet Gear Bushings Using Vibration Signature Analysis Techniques
Technical Paper
2007-01-4190
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper illustrates the potential benefits of identifying planet gear bushing failures in military Light Armored Vehicles (LAVs) using vibration signature analysis techniques over conventional thermocouple methods. A pneumatically driven test rig was developed to measure the vibrational response of a lubricated dimpled bushing using accelerometers mounted externally to the bushing housing. Fourier-based signature analysis techniques are employed to track the wear history of the bushing liner material under steady load and steady shaft rotational speed. Vibration data collected from the accelerometers was analyzed by calculating the band power of specific frequency bands. Three separate run-to-failure tests showed a direct linear relationship between band power and bushing wear for frequency bands that may be related to the worn dimpled pattern of the bushing. The data was also shown to be a reasonable predictor of bushing wear within specified confidence bounds. In all cases, vibration signature testing was found to be a more reliable indicator of bushing wear history when compared with conventional temperature measurements.
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Citation
Parnell, V., Boedo, S., Kempski, M., Kochersberger, K. et al., "Health Monitoring of LAV Planet Gear Bushings Using Vibration Signature Analysis Techniques," SAE Technical Paper 2007-01-4190, 2007, https://doi.org/10.4271/2007-01-4190.Also In
References
- Office of Naval Research Grant No. N0014-39-1-0154 Final Report, 1998-2003. National Center for Remanufacturing and Resource Recovery 2004
- Choy F.K. Huang S. Zakrajsek J. J. Handschuh R. F. Townsend D.P. in: 30 th Joint Propulsion Conference June 27 29 1994 1 14
- Choy F. K. Mugler D. H. Zhou J. Journal of Mechanical Design 125 ( 2003 394 403
- Choy F. K Polyshchuk V. Zakrajsek J. J. Handschuh R. F. Townsend D. P. Tribology International 29 1996 77 83
- Liberatore S. Carman G.P. Journal of Sound and Vibration 274 2004 761 776
- Peng Z. Kessissoglou N. Wear 255 2003 1221 123
- Cavacece M. Introini A. Journal of Vibration and Acoustics 124 2002 180 185
- Power Spectrum. LabVIEW 7.1 Help Manual, 2005. National Instruments.