Effect of possible rotor deformation on the probability of face contact for a liquid film bearing

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Bailey, N.Y., Hibberd, Stephen and Power, H. (2017) Effect of possible rotor deformation on the probability of face contact for a liquid film bearing. Tribology International, 109 . pp. 297-310. ISSN 1879-2464

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Official URL: http://www.sciencedirect.com/science/article/pii/S0301679X16305163

Abstract

The possibility of face contact is examined for a coaxial rotor-stator bearing in dynamic motion constrained by a highly rotating very thin liquid film. A modified Reynolds equation for pressurised flow is coupled to the bearing structure leading to determination of the bearing gap from solving a nonlinear second-order non-autonomous ordinary differential equation. Periodic solutions are found via a mapping solver. Rotor deformation is parametrised by a coning angle and considered a random variable. The method of derived distributions is used to quantify variation in coning angle and examine the probability of rotor-stator contact. Additionally, effects of possible destabilising random aspects on the axial rotor oscillations are investigated. Exact solutions for probability of contact are obtained for various bearing configurations.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/969007
Keywords:	Reynolds equation; Method of derived distribution; Probability density function; Face contact
Schools/Departments:	University of Nottingham, UK > Faculty of Engineering University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Identification Number:	https://doi.org/10.1016/j.triboint.2016.12.032
Depositing User:	Eprints, Support
Date Deposited:	15 Mar 2017 09:59
Last Modified:	04 May 2020 19:57
URI:	https://eprints.nottingham.ac.uk/id/eprint/41322

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