Analysing applicability of selected methods to smooth indicator diagrams of marine medium-speed engine

• Autorzy: Pawletko R.
• Języki publikacji: EN

Abstrakty

EN

The article analyses the applicability of selected smoothing methods to smooth indicator diagram curves and to filter disturbances. An intermediate goal of the study was an attempt to extract disturbances recorded during pressure curve smoothing, which are believed to be a source of important diagnostic information. Within the framework of the reported analysis, a comparison was made between the moving average method, the Savitzky-Golay filter, and the frequency filtration method. The research was performed on a marine medium-speed engine Sulzer 3Al 25/30, which has a relatively long indicator passage.

Słowa kluczowe

EN

indicator diagrams; smoothing waveforms; filtering disturbances

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: nr 2
• Strony: 55--61
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Pawletko R.

• Gdynia Maritime University, 81-87 Morska St., 81-225 Gdynia, POLAND

Bibliografia

• 1. Dey K., Characterization and rejection of noise from in-cylinder pressure traces in a diesel engine, Electronic Theses and Dissertations, Paper 121, 2012
• 2. Fujio N., Makato I., Errors of an Indicator due to a Connecting Passage, JSME 621.43.018.86
• 3. Hountalas D. T., Anestis A., Effect of Pressure Transducer Position on Measured Cylinder Pressure Diagram of High Speed Diesel Engines. Energy Convers, Mgmt Vol. 39, No. 7, pp 589-607, 1998
• 4. Pawletko, R., Polanowski, S, Influence of fuel injection system faults of marine diesel engine on the heat release characteristics, Combustion Engines, 154(3), 2013
• 5. Polanowski, S, Application of movable approximation and wavelet decomposition to smoothing-out procedure of ship engine indicator diagrams, Polish Maritime Research 2(52) Vol 14, pp. 12-17, 2007
• 6. Polanowski, S, Assessing diagnostic applicability of heat release characteristics determined based on ship engine indicator diagrams, Polish Maritime Research 3(61) Vol 16; pp. 32-35, 2009
• 7. Rychter, T., Teodorczyk, A., Mathematical modelling of piston engine operation cycle (in Polish), PWN, Warsaw 1990
• 8. Savitzky, A., Golay, M. J., Smoothing and differentiation of data by simplified least squares procedures, Analytical chemistry 36.8, 1964
• 9. Wlocardyk M.T., High accuracy glow-plug integrated cylinder pressure sensor for closed loop engine control, SAE Paper 2006-01-0184, 2006