Sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F19%3A43955495" target="_blank" >RIV/49777513:23520/19:43955495 - isvavai.cz</a>
Result on the web
<a href="http://www.engmech.cz/improc/2019/079_Smolik_080.pdf" target="_blank" >http://www.engmech.cz/improc/2019/079_Smolik_080.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/71-0-339" target="_blank" >10.21495/71-0-339</a>

Result language
angličtina
Original language name
Sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings
Original language description
This paper aims to the modelling and investigation of sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings. Bores for an oil supply are located in the lower halves of bearing shells. It is shown that the poor lubrication of the described bearings may lead to an occurrence of stable vibrations at the frequency ca. 0.9 to the rotor speed. Simulations are performed using a multi-body approach for modelling rotating systems. Forces acting in journal bearings are evaluated employing a massconserving finite element solution of the Reynolds equation.
Czech name
—
Czech description
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Project
<a href="/en/project/GA17-15915S" target="_blank" >GA17-15915S: Nonlinear dynamics of rotating systems considering fluid film instabilities with the emphasis on local effects</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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