Eliminating the Influence of Support Conditions on Geometric Shape Measurements of Large Crankshafts of Marine Engines

Krzysztof Nozdrzykowski (), Zenon Grządziel, Magdalena Nozdrzykowska, Rafał Grzejda and Mateusz Stępień
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Krzysztof Nozdrzykowski: Faculty of Marine Engineering, Maritime University of Szczecin, Willowa Str. 2, 71-560 Szczecin, Poland
Zenon Grządziel: Faculty of Marine Engineering, Maritime University of Szczecin, Willowa Str. 2, 71-560 Szczecin, Poland
Magdalena Nozdrzykowska: Faculty of Computer Science and Telecommunications, Maritime University of Szczecin, 1-2 Waly Chrobrego St., 70-500 Szczecin, Poland
Rafał Grzejda: Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 19 Piastow Ave., 70-310 Szczecin, Poland
Mateusz Stępień: Piping Company ‘Chemar Rurociągi’ Sp. z o. o., 6 Olszewskiego St., 25-663 Kielce, Poland

Energies, 2022, vol. 16, issue 1, 1-20

Abstract: This paper presents an analysis of the possibility of determining the geometric deviations of large crankshafts of engines using both conventional and alternative fuels. Experimental tests were carried out on a test stand adapted to measure crankshafts seated with their main journals on a set of fixed supports with the possibility of height positioning and using a reference measuring system. A comparative assessment of the results was made for a selected crankshaft using the intercorrelation factor ρ , whose value ranged from 0.8982 to 0.9751. It was concluded that the proposed procedures can be useful in assessing of the geometric condition of the crankshafts with axial position deviations and with limited possibilities of their detection resulting from the adopted support conditions with a set of supports positioned at different heights. Experimental tests were supplemented with FE-analyses of the crankshaft supported at multiple locations and loaded with deviations in the position of the main journal axes.

Keywords: energy machines; large crankshafts; geometric deviations; support conditions; elastic deformations; harmonic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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