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Strength assessment of two-stroke marine diesel engine piston rings in the mounting procedure (CROSBI ID 615286)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Vladimir, Nikola ; Šestan, Ante ; Ančić, Ivica ; Prosinečki, Tomislav Strength assessment of two-stroke marine diesel engine piston rings in the mounting procedure // Proceedings of the Twelfth International Conference on Marine Sciences and Technologies - Black Sea 2014 / Georgiev, Petar ; Kishev, Rumen ; Shtereva, Galina (ur.). Varna, 2014. str. 141-145

Podaci o odgovornosti

Vladimir, Nikola ; Šestan, Ante ; Ančić, Ivica ; Prosinečki, Tomislav

engleski

Strength assessment of two-stroke marine diesel engine piston rings in the mounting procedure

Piston rings are essential parts of all modern internal combustion engines and their properties significantly affect the engine reliability and exploitation life. Roles of a piston ring are: sealing the engine combustion chamber, minimization of the frictional losses against the cylinder liner, evenly distribution of oil along the cylinder liner and transfer of the heat from the piston. This paper deals with the strength assessment of a compression ring of a two stroke crosshead marine diesel engine in the mounting procedure. Namely, during the mounting the ring should be expanded by the appropriate device, which can cause significant bending moments and consequently plastic deformations. The aim of the paper is to examine selected available methods for the strength assessment of a ring to improve its mounting procedure. Two approaches are used to calculate the stress levels, i.e.: energy approach based on the 2nd Castigliano's theorem as well as widely used commercial FEA tool employing four-node solid elements. Based on the obtained numerical results family of curves determining allowable ring deflection with respect to the ring diameter and its width are drawn.

piston ring; mounting procedure; marine diesel engine; stress; analytical solution; FEM

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Podaci o prilogu

141-145.

2014.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of the Twelfth International Conference on Marine Sciences and Technologies - Black Sea 2014

Georgiev, Petar ; Kishev, Rumen ; Shtereva, Galina

Varna:

1314-0957

Podaci o skupu

Twelfth International Conference on Marine Sciences and Technologies - Black Sea 2014

predavanje

25.09.2014-27.09.2014

Varna, Bugarska

Povezanost rada

Brodogradnja, Strojarstvo