Influence of plain journal bearing parameters on the rotor nonlinear behaviour

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F17%3AN0000018" target="_blank" >RIV/47718684:_____/17:N0000018 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23520/17:43949868

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of plain journal bearing parameters on the rotor nonlinear behaviour

Popis výsledku v původním jazyce

This paper deals with the investigation of the rotor nonlinear behaviour with respect to design parameters of plain journal bearings. The Reynolds equation is solved numerically employing a verified in-house solver based on finite differences. A pressure distribution serves for the calculation of nonlinear bearing forces acting on the rotor. Bearing forces together with the model of a rotating structure form equations of motion of the whole system as a set of ordinary differential equations. The nonlinear rotor behaviour is solved using direct numerical integration of equations of motion, which is a suitable way for the evaluation of possible instabilities with respect to bearing parameters. Obtained numerical results are compared with results calculated using a commercial simulation software.

Název v anglickém jazyce

Influence of plain journal bearing parameters on the rotor nonlinear behaviour

Popis výsledku anglicky

This paper deals with the investigation of the rotor nonlinear behaviour with respect to design parameters of plain journal bearings. The Reynolds equation is solved numerically employing a verified in-house solver based on finite differences. A pressure distribution serves for the calculation of nonlinear bearing forces acting on the rotor. Bearing forces together with the model of a rotating structure form equations of motion of the whole system as a set of ordinary differential equations. The nonlinear rotor behaviour is solved using direct numerical integration of equations of motion, which is a suitable way for the evaluation of possible instabilities with respect to bearing parameters. Obtained numerical results are compared with results calculated using a commercial simulation software.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA17-15915S" target="_blank" >GA17-15915S: Nelineární dynamika rotujících systémů s uvažováním nestabilit v olejovém filmu s důrazem na lokální jevy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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