Application of the Optimization Methods to the Search of Marine Propulsion Shafting Global Equilibrium in Running Condition - Publikacja - MOST Wiedzy

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Application of the Optimization Methods to the Search of Marine Propulsion Shafting Global Equilibrium in Running Condition

Abstrakt

Full film hydrodynamic lubrication of marine propulsion shafting journal bearings in running condition is discussed. Considerable computational difficulties in non-linear determining the quasi-static equilibrium of the shafting are highlighted. The approach using two optimization methods (the particle swarm method and the interior point method) in combination with the specially developed relaxation technique is proposed to overcome this problem. The developed algorithm allows calculating marine propulsion shafting bending taking into account lubrication in all journal bearings and exact form of journal inside bearings, compared to most of the publications that consider lubrication only in the aftmost stern tube bearing and suppose rest of bearings as pointwise. The calculation results of typical shafting design with four bearings are provided. The significance of taking into account lubrication in all bearings is shown, specifically more exact values of bearings’ reactions, shafting deflections, minimum film thickness and maximum hydrodynamic pressure in the stern tube bearing in case of considering lubrication in all bearings.

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Creative Commons: CC-BY-NC-ND otwiera się w nowej karcie

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Polish Maritime Research nr 26, strony 172 - 180,
ISSN: 1233-2585
Język:
angielski
Rok wydania:
2019
Opis bibliograficzny:
Ursolov A., Batrak Y., Tarełko W.: Application of the Optimization Methods to the Search of Marine Propulsion Shafting Global Equilibrium in Running Condition// Polish Maritime Research -Vol. 26,iss. 3 (2019), s.172-180
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.2478/pomr-2019-0058
Bibliografia: test
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Weryfikacja:
Politechnika Gdańska

wyświetlono 95 razy

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