Methodology of fault detection in internal combustion engines through the analysis of rolling block oscillation

This paper presents a non-intrusive fault detection technique, based on the analysis of rolling block oscillations, assuming that the engine behaves as a rigid body mounted on elastic supports. Engine diagnosis is feasible with a single accelerometer, which constitutes an attractive procedure for maintenance engineers. The proposed method is illustrated with modelled and measured results obtained with two different automotive engines. The engine diagnosis is performed using a particular normalisation of the Fast Fourier Transform. The procedure leads to identify multiple sub-harmonics of the firing frequency which allow a reliable diagnosis.

[1]  Andrew Ball,et al.  Diesel Injector Dynamic Modelling and Estimation of Injection Parameters from Impact Response Part 2: Prediction of Injection Parameters from Monitored Vibration , 1996 .

[2]  Eran Sher,et al.  Fault Detection in Internal Combustion Engines by the Vibrations Analysis Method , 1999 .

[3]  Quentin Leclere,et al.  Indirect measurement of main bearing loads in an operating diesel engine , 2005 .

[4]  Alberto Broatch,et al.  Measurement of hydrocarbon and carbon monoxide emissions during the starting of automotive DI Diesel engines , 2008 .

[5]  Jien-Chen Chen,et al.  Continuous wavelet transform technique for fault signal diagnosis of internal combustion engines , 2006 .

[6]  Octavio Armas,et al.  Influence of measurement errors and estimated parameters on combustion diagnosis , 2006 .

[7]  Gal deBotton,et al.  Vibration monitoring as a predictive maintenance tool for reciprocating engines , 2000 .

[8]  Pablo César Olmeda González.  Diagnóstico de fallos de motores diésel mediante el análisis de la oscilación del bloque , 2003 .

[9]  Fengshou Gu,et al.  Diesel Injector Dynamic Modelling and Estimation of Injection Parameters from Impact Response Part 1: Modelling and Analysis of Injector Impacts , 1996 .

[10]  J W Richmond,et al.  The Quantification and Reduction of Piston Slap Noise , 1987 .

[11]  Giorgio Rizzoni,et al.  Diagnosis of individual Cylinder Misfires by Signature Analysis of Crankshaft Speed Fluctuations , 1989 .

[12]  Carlos Guardiola,et al.  Injection diagnosis through common-rail pressure measurement , 2006 .

[13]  Massimo Ceccarani,et al.  Engine Misfire Monitoring for a V12 Engine by Exhaust Pressure Analysis , 1998 .

[14]  V. Macián,et al.  Condition Monitoring of Thermal Reciprocating Engines Through Analysis of Rolling Block Oscillations , 1998 .

[15]  Carlos Guardiola,et al.  Detection and Correction of injection failures in diesel engines on the basis of turbocharger instantaneous speed frequency analysis , 2005 .