This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Engine Monitoring Using Vibration Signals
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 01, 1986 by SAE International in United States
Annotation ability available
The operation of a 350 horsepower diesel truck engine was monitored during laboratory tests using the vibration of the block to detect faults in the cylinder pressure and bearings. Simulated faults were introduced into the engine to determine the sensitivity of the vibration measurement location to a particular fault. The head bolt vibration signal was found to be the most sensitive to changes in the cylinder pressure. Single channel signal processing using cepstral windowing was able to reconstruct the cylinder pressure signal from a local head bolt vibration signal. The lower block vibration signals were more sensitive in detecting a main bearing fault. However, in this case complex signal processing using multichannel inverse filtering was necessary to identify the location of the fault. The application of vibration monitoring to in-service diagnostics is discussed.
|Technical Paper||Modeling and Simulation of Cylinder Head Vibration Using Multibody Dynamics Approach and Wavelet Analysis|
|Technical Paper||Analytical Investigation of Crankshaft Dynamics as a Virtual Engine Module|
CitationDeJong, R., Powell, R., and Manning, J., "Engine Monitoring Using Vibration Signals," SAE Technical Paper 861246, 1986, https://doi.org/10.4271/861246.
- Parsons N.E. DeJong R.G. Manning J.E. “Demonstration of Noise Control for the Cummins NTC-350 Heavy Duty Truck Diesel Engine,” Final contractor report to EPA Office of Noise Abatement, Contract No. 68-01-4737 June 1982
- Lyon R.H. Ordubadi A. “Use of Cepstra in Acoustical Signal Analysis,” ASME Journal of Mechanical Design 104 2 April 1982 303 307
- Lyon R.H. DeJong R.G. “Design of a High Level Diagnostic System,” ASME Journal of Vib., Acoust.. Stress, and Reliability in Design 106 1 January 1984 17 21
- Powell R.E. “Multichannel Inverse Filtering of Machinery Vibration Signals,” ScD thesis Dept. of Mech. Eng., MIT January 1983
- Powell R.E. Seering W. “Multichannel Structural Inverse Filtering,” ASME Journal of Vib., Acoust., Stress, and Reliability in Design 106 1 January 1984 22 28
- Bendat J.S. “Modern Analysis Procedures for Multiple Input/Output Problems,” J. Acoust. Soc. Am. 68 498 503 1980