Test stand for monitoring of torsional vibration of engine’s crankshaft by instantaneous angular speed measurement

• Autorzy: Dereszewski M.
• Języki publikacji: EN

Abstrakty

EN

Continuous monitoring of diesel engine performance under its operating is critical for prediction of malfunction development and subsequently functional failure detection. Analysis of Instantaneous angular Speed (IAS) of the crankshaft is considered as one of non intrusive, and effective method of detection of combustion quality deterioration.The paper contains presentation of attempt of monitoring of piston engine’s crankshaft torsional vibrations by measurement of Instantaneous Angular Speed at free and power output ends of the engine’s crankshaft. It is assumed that calculation of differentia value between both ends shall give the picture of torsion angle magnitudes and phases of the peak values. The angular speed measurements is to be done utilising two optical sensors for reading and two perforated discs mounted at shaft’s ends playing the role of speed signal emitters. In the paper is presented description of the measurement system and explanation of its mode of work. It is also shown analysis of measurement accuracy, way errors elimination and method of signals runs filtration. Presented results of experiment derives from test cycle carried out using laboratory stand of Gdynia Maritime University equipped with 3-cylinder self – ignition engine, powering electric generator.

Słowa kluczowe

EN

torsional vibrations; crankshaft angular speed; diesel-generators; optical method of measurement

• Wydawca: Wydawnictwo Uniwersytetu Morskiego w Gdyni
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Gdyni
• Rocznik: 2016
• Tom: nr 96
• Strony: 15--23
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Dereszewski M.

• Akademia Morska w Gdyni

Bibliografia

• 1. Dereszewski M., Charchalis A., Polanowski S., Analysis of diagnostic utility of instantaneous angular speed of a sea going vessel propulsion shaft, Journal of KONES, 2011, vol. 18, no. 1, pp. 77–83.
• 2. Desbazeille M., Randall R.B., Guillet F et al., Model-based diagnosis of large diesel engines based on angular speed variations of the crankshaft, Mechanical Systems and Signal Processing, 2010, no. 24, pp. 1108–1134.
• 3. Geveci M., Osburn A.W., Franchek M.A., An investigation of crankshaft oscillations for cylinder health diagnostics, Mechanical Systems and Signal Processing, 2005, no. 19, pp. 1108–1134.
• 4. Jianguo Yang, Lijun Pu, Zhihua Wang, Yichen Zhon, Xinping Yan, Fault detection in a diesel engine by analyzing the instantaneous angular speed, Mechanical Systems and Signal Processing, 2001,no. 15(3), pp. 549–564.
• 5. Tian Ran Lin., Andy C.C., Tan Lin Ma, Joseph Mathew, Estimating the Loading Condition of a diesel Engine Using Instantaneous Angular Speed Analysis, Proceedings of the 6th World Congress on Engineering Asset Management, http://eprints.qut.edu.au./46609/.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)