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Oil Pressure Signatures for Engine Lubrication System Monitoring
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English
Abstract
This paper describes an application of signature analysis techniques to oil pressure signals of internal combustion engines for monitoring the status of an engine lubrication system. The dynamic characteristics of a lubrication flow network are presented. The state of the lubrication system is reflected not only in the mean or D.C. component, but also in higher frequencies of the signal. Experimental results are presented for both periodic and position locked components of the pulsatile signals. The signal characteristics are altered if a defect is present in the engine. Signal characteristics are affected due to perturbations introduced by the defect present downstream in the lubrication system. The changes in oil pressure signals are sensitive to oil temperature and proximity of the defect to the monitoring point. Results are presented to indicate limitations of such analysis techniques for lubrication system fault detection.
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Authors
Citation
Seth, B. and Field, N., "Oil Pressure Signatures for Engine Lubrication System Monitoring," SAE Technical Paper 840063, 1984, https://doi.org/10.4271/840063.Also In
References
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- Safriet, B. E. “Analysis of Pressure Pulsation in Reciprocating Compressor Piping Systems by Analog and Digital Simulation,” ASHE paper No. 76-WA/DGP-3 1976
- Braun, S. G. Seth B. B. “Signature Analysis Methods and Applications for Rotating Machines,” ASME Paper No. 77-WA/Aut-S 1977
- Braun, S. G. Seth B. B. “Analysis of Repetitive Mechanical Signatures,” Journal of Sound and Vibration 70 4 513 526 1980