Influence of detailed ball-and-socket modelling on tilting pad journal bearings dynamics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F23%3A43967916" target="_blank" >RIV/49777513:23520/23:43967916 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11071-023-08266-4" target="_blank" >https://link.springer.com/article/10.1007/s11071-023-08266-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11071-023-08266-4" target="_blank" >10.1007/s11071-023-08266-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of detailed ball-and-socket modelling on tilting pad journal bearings dynamics

Popis výsledku v původním jazyce

The paper focuses on local phenomena modelling in the ball-and-socket pivot of tilting pad journal bearings. It provides an in-depth analysis of the influence of nonlinear normal force and friction forces generated in the pivot on the dynamic behaviour of the bearing. Contemporary works often employ the Hertz theory, which is valid for non-conformal contacts. This research, however, utilises a conformal sphere-to-sphere contact and uses the Bengisu-Akay and LuGre models, which describe static and dynamic friction. Furthermore, the latter model respects effects such as presliding, which can be essential for accurate predictions of nonlinear behaviour and which has not been employed to simulate the dynamics of the tilting pad journal bearings so far. This work also discusses the influence of model parameters. Such a discussion is critical for the LuGre model, whose proper parameter values are not straightforward to estimate.

Název v anglickém jazyce

Influence of detailed ball-and-socket modelling on tilting pad journal bearings dynamics

Popis výsledku anglicky

The paper focuses on local phenomena modelling in the ball-and-socket pivot of tilting pad journal bearings. It provides an in-depth analysis of the influence of nonlinear normal force and friction forces generated in the pivot on the dynamic behaviour of the bearing. Contemporary works often employ the Hertz theory, which is valid for non-conformal contacts. This research, however, utilises a conformal sphere-to-sphere contact and uses the Bengisu-Akay and LuGre models, which describe static and dynamic friction. Furthermore, the latter model respects effects such as presliding, which can be essential for accurate predictions of nonlinear behaviour and which has not been employed to simulate the dynamics of the tilting pad journal bearings so far. This work also discusses the influence of model parameters. Such a discussion is critical for the LuGre model, whose proper parameter values are not straightforward to estimate.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/TK04020057" target="_blank" >TK04020057: Zvýšení spolehlivosti provozu turbosoustrojí z pohledu životnosti segmentových ložisek</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

NONLINEAR DYNAMICS

ISSN

0924-090X

e-ISSN

1573-269X

Svazek periodika

111

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

17

Strana od-do

8155-8171

Kód UT WoS článku

000931757700003

EID výsledku v databázi Scopus

2-s2.0-85147747734