Title:	Effects of Imperfect Grooves in Full-Floating Ring Bearings on Dynamics of a Turbocharger Rotor
Authors:	Smolík, Luboš Polach, Pavel Hajžman, Michal
Citation:	SMOLÍK, L. POLACH, P. HAJŽMAN, M.Effects of Imperfect Grooves in Full-Floating Ring Bearings on Dynamics of a Turbocharger Rotor. Vibrations in Physical Systems, 2020, roč. 31, č. 2, s. 1-13. ISSN 0860-6897.
Issue Date:	2020
Publisher:	Poznan University of Technology
Document type:	článek article
URI:	2-s2.0-85092647912 http://hdl.handle.net/11025/42936
ISSN:	0860-6897
Keywords in different language:	rotor;dynamics;uncertainty;bearings
Abstract in different language:	Full-floating ring bearings cause nonlinear vibrations of turbocharger rotors, and they have higher hydrodynamic power losses in comparison with rolling element bearings. Both issues can be improved if several shallow axial grooves are machined in the inner surface of the floating ring. The grooves are usually not manufactured precisely in order to keep production costs as low as possible. This work investigates the role of the machining errors on the dynamics of the turbocharger rotor. More specifically, the effects of the precisely-machined grooves on the dynamics of the system are explained. Then the influence of the uncertainties on both vibrations and hydrodynamic power losses in the bearings is investigated.
Rights:	© Poznan University of Technology
Appears in Collections:	Postprinty / Postprints (NTIS) OBD

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