Computational Modelling of Piston Ring Dynamics in 3D

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU116566" target="_blank" >RIV/00216305:26210/15:PU116566 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.bozek.cvut.cz/mecca/indexen.html" target="_blank" >http://www.bozek.cvut.cz/mecca/indexen.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/mecdc-2014-0009" target="_blank" >10.2478/mecdc-2014-0009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational Modelling of Piston Ring Dynamics in 3D

Popis výsledku v původním jazyce

Advanced computational models of a piston assembly based on the level of virtual prototypes require a detailed description of piston ring behaviour. Considering these requirements, the piston rings operate in regimes that cannot in general be simplifiedinto an axisymmetric model in general. The piston and the cylinder liner do not have a perfect round shape, due mainly due to machining tolerances and external thermo-mechanical loads. If the ring cannot follow the liner deformations, a local loss of contact occurs and resulting in blow-by and increased consumption of lubricant oil consumption consequently increase in the engine. Current computational models are unable to implement such effects. The paper focuses on the development of the a flexible 3Dpiston ring model based on the Timoshenko beam theory with the use ofusing the mMultibody system (MBS). The MBS model is compared to the fFinite element method (FEM) solution.

Název v anglickém jazyce

Computational Modelling of Piston Ring Dynamics in 3D

Popis výsledku anglicky

Advanced computational models of a piston assembly based on the level of virtual prototypes require a detailed description of piston ring behaviour. Considering these requirements, the piston rings operate in regimes that cannot in general be simplifiedinto an axisymmetric model in general. The piston and the cylinder liner do not have a perfect round shape, due mainly due to machining tolerances and external thermo-mechanical loads. If the ring cannot follow the liner deformations, a local loss of contact occurs and resulting in blow-by and increased consumption of lubricant oil consumption consequently increase in the engine. Current computational models are unable to implement such effects. The paper focuses on the development of the a flexible 3Dpiston ring model based on the Timoshenko beam theory with the use ofusing the mMultibody system (MBS). The MBS model is compared to the fFinite element method (FEM) solution.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JT - Pohon, motory a paliva

OECD FORD obor

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Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MECCA - Journal of Middle European Costruction and Design of Cars

ISSN

1214-0821

e-ISSN

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Svazek periodika

2015

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

1-7

Kód UT WoS článku

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EID výsledku v databázi Scopus

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