Název:	Influence of detailed ball-and-socket modelling on tilting pad journal bearings dynamics
Autoři:	Dyk, Štěpán Rendl, Jan Bulín, Radek Smolík, Luboš
Citace zdrojového dokumentu:	DYK, Š. RENDL, J. BULÍN, R. SMOLÍK, L. Influence of detailed ball-and-socket modelling on tilting pad journal bearings dynamics. NONLINEAR DYNAMICS, 2023, roč. 111, č. 9, s. 8155-8171. ISSN: 0924-090X
Datum vydání:	2023
Nakladatel:	Springer
Typ dokumentu:	článek article
URI:	2-s2.0-85147747734 http://hdl.handle.net/11025/51872
ISSN:	0924-090X
Klíčová slova v dalším jazyce:	tilting pad journal bearings;ball-and-socket;friction;conformal contact;LuGre model;Bengisu-Akay model
Abstrakt v dalším 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.
Práva:	© The Author(s)
Vyskytuje se v kolekcích:	Články / Articles (NTIS) OBD

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