55. Estimation of engine piston system wear using time‑frequency method

Marek Flekiewicz1, Paweł Fabiś2, Rafał Burdzik3

Silesian University of Technology, Department of Automotive Vehicle Construction, Gliwice, Poland

1Corresponding author

E-mail: 1marek.flekiewicz@polsl.pl, 2pawel.fabis@polsl.pl, 3rafal.burdzik@polsl.pl

(Received 20 August 2014; received in revised form 8 September 2014; accepted 11 September 2014)

Abstract. The paper presents the fault diagnosis technique for internal combustion engines using time-frequency representations of vibration signal. Engine block vibration results as a sum of many excitations mainly connected with engine speed and their intensity increases with the appearance of a fault or in case of higher engine elements wearing. In this paper an application of acceleration signals for the estimation of the influence of piston skirt clearance on diesel engine block vibrations has been described. Engine body accelerations registered for three simulated cases representing piston skirt clearance variations were an object of preliminary analysis. The presented procedures were applied to vibration and pressure signals acquired for a 0.5 dm3 Ruggerini, air cooled diesel engine. Reciprocating machines are difficult to diagnose using traditional frequency domain techniques because of generate transient vibration. In conducted experiments wavelet transform has been chosen.

Keywords: piston slap, engine diagnostic, vibroacoustic diagnosis.

References

[1]        Shibata K., Takahashi A., Shirai T. Fault diagnosis of rotating machinery through visualization sound signals. Mechanical Systems and Signal Processing, Vol. 14, 2000, p. 229‑241.

[2]        Wang W. Q. Ismail F. Golnarghi F. Assessment of gear damage monitoring techniques using vibration measurements. Mechanical Systems and Signal Processing, Vol. 15, Issue 5, 2003, p. 905‑1022.

[3]        Bai M. R., Jeng J., Chen C. Adaptative order tracking technique using recursive last-square algorithm. Journal of Sound and Vibration, Vol. 124, 2004, p. 502‑511.

[4]        Tse P. W., Yang W. X., Tan H. Y. Machine fault diagnosis trough an effective exact wavelet analysis. Journal of Sound and Vibration, Vol. 227, 2004, p. 1005‑1024.

[5]        Lin J., Qu L. Feature extraction based on Morlet wavelet and its application for mechanical fault diagnosis. Journal of Sound and Vibration, Vol. 234, Issue 1, 2000, p. 135‑148.

[6]        Jang S., Cho J. Effect of skirt profiles on the piston secondary movements by the lubrication behaviors. International Journal of Automotive Technology, Vol. 5, 2004, p. 23‑31.

[7]        Antoni J., Daniere J., Guillet F. Effective vibration analysis of IC engines using cyclostationarity. Part I – A methodology for condition monitoring. Journal of Sound and Vibration, Vol. 257, Issue 5, 2002, p. 815‑837.

[8]        Badaoui M. El., Daniére J., Guillet F., Serviére C. Separation of combustion noise and piston-slap in diesel engine – Part I: Separation of combustion noise and piston-slap in diesel engine by cyclic Wiener filtering. Mechanical Systems and Signal Processing, Vol. 19, 2005, p. 1209‑1217.

[9]        Geng Z., Chen J. Investigation into piston-slap-induced vibration for engine condition simulation and monitoring. Journal of Sound and Vibration, Vol. 282, 2004, p. 731‑751.

[10]     Inagaki M., Kawamoto T., Yamamoto K. Prediction of structural and kinematic coupled vibration on internal combustion engine. R&D Review of Toyota CRDL, Vol 37, No. 2.

[11]     Flekiewicz M., Madej H. Influence of Combustion Noise on Engine Block Vibration in IC Engine Fueled by LPG. VAFSEP 2006, p. 67‑75.

[12]     Flekiewicz M., Flekiewicz B., Fabiś P., Madej H., Wojnar G. Influence of piston slap on engine block vibration. SAE Paper 2007-01-2163.

[13]     Folęga P., Siwiec G. Numerical analysis of selected materials for flexsplines. Archives of Metallurgy and Materials, Vol. 57, Issue 1, 2012, p. 185‑191.

[14]     Burdzik R., Folęga P., Łazarz B., Stanik Z., Warczek J. Analysis of the impact of surface layer parameters on wear intensity of friction pairs. Archives of Metallurgy and Materials, Vol. 57, Issue 4, 2012, p. 987‑993.

Cite this article

Flekiewicz Marek, Fabiś Paweł, Burdzik Rafał Estimation of engine piston system wear using time-frequency method. Journal of Measurements in Engineering, Vol. 2, Issue 3, 2014, p. 159‑163.

 

Journal of Measurements in Engineering. September 2014, Volume 2, Issue 3
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