Analysis of changes in the angular velocity of the crankshaft of the marine engine for diagnosing the wear and location the failure of the fuel injection system

• Autorzy: Drewing Sebastian , Abramczyk Norbert , Żuk Daria

Identyfikatory

DOI

10.2478/mme-2021-0010

• Języki publikacji: EN

Abstrakty

EN

The combustion process can be simply described as periodic explosions in a cylinder with its frequency dependent on the number of cylinders and the rotational speed of the shaft. In practice, uniformity of combustion parameters in every cylinder is almost impossible. Due to this fact, instantaneous angular acceleration does not remain the same at the ends of the crankshaft. These observations formed the basis for the investigation of the instantaneous angular speed of the crankshaft ends. To investigate the influence of the failure behavior of the fuel systems during a shaft’s rotational movement, a series of experiments were planned. For the simulations, a medium-speed marine engine driving electro generator was selected. The failure simulation was based on the installation of clogged spray holes, draining of part of fuel dose from high-pressure pump and decreasing of injection pressure by a lower tension of the injector spring. The results of measurement were processed and analyzed through a comparison of the fast Fourier transform spectra. As a general conclusion, a difference between general harmonics order of magnitudes was detected.

Słowa kluczowe

EN

medium speed reciprocating marine internal combustion engine; instantaneous angular speed; fast Fourier transform; failure simulation of fuel delivery system

PL

okrętowy silnik spalinowy; chwilowa prędkość kątowa; szybka transformata Fouriera; symulacja awarii układu paliwowego

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2021
• Tom: Vol. 25, nr 1
• Strony: 72--76
• Opis fizyczny: Bibliogr. 9 poz., fot. kolor., wykr.

Twórcy

autor

Drewing Sebastian

• Gdynia Maritime University, Faculty of Marine Engineering, Morska str. 81-87, 81-225 Gdynia, Poland

• https://orcid.org/0000-0002-2388-4342

autor

Abramczyk Norbert

• Gdynia Maritime University, Faculty of Marine Engineering, Morska str. 81-87, 81-225 Gdynia, Poland

• https://orcid.org/0000-0003-4556-7994

autor

Żuk Daria

• Gdynia Maritime University, Faculty of Marine Engineering, Morska str. 81-87, 81-225 Gdynia, Poland

• https://orcid.org/0000-0002-0810-0626

Bibliografia

• [1] Lin T. R., Tan A.C., Ma L., Mathew J.: Estimating the loading condition of a diesel engine using instantaneous angular speed analysis, Proceedings of the 6th World Congress on Engineering Asset Management, Cincinatti, Ohio, USA, 2011.
• [2] Desbaseille M., Randall R.B., Guillet F., El Badaoui M., Hoisnard C.: Model-based diagnosis of large diesel engines based on angular speed variations of the crankshaft, Mechanical Systems and Signal Processing, 24, pp 1529 - 1541, 2010.
• [3] Williams J.,Witter, M.: Individual Cylinder IMEP Estimation Using Crankshaft Angular Velocity Measurements, SAE Technical Paper 2001-01-0990, ,https://doi.org/10.4271/2001-01-0990, 2001.
• [4] Geveci M., Osburn A.W., Franchek M.A.: An investigation of crankshaft oscillations for cylinder health diagnostics, Mechanical Systems and Signal Processing. 19 ,pp. 1107 - 1134, 2005.
• [5] Gawande S.H., Navale L.G.,. Nandgaonkar M.R, Butala D.S., Kunamalla S.: Detecting power imbalance in multi-cylinder inline diesel engine genset, Journal of Electronic Science and Technology, Vol.8, No3, 2010.
• [6] Adamson S.: Improved Approaches to the Measurement and Analysis of Torsional Vibration, SAE Technical Paper 2004-01- 1723, https://doi.org/10.4271/2004-01-1723, 2004.
• [7] Feese T., Coupling failures in VFD motor/fan system due to torsional vibration, Torsional Vibration Symposium, Salzburg, paper No.7B-2, 2017.
• [8] Ravindran R., Das D., Kamani K., Sivaraman P. et al.: Methodology Development for Torsional Vibration Measurement and Processing in Powertrains, SAE Technical Paper 2015-01-2278, https://doi.org/10.4271/2015-01-2278, 2015.
• [9] Malaczynski G., Van der Poel R.: Phase Diagrams of Different Modes of Misfire Calculated from the Digital Fourier Transformation of Angular Crankshaft Velocity, SAE Technical Paper 2010- 01-0167, https://doi.org/10.4271/2010-01-0167, 2010.