Study of the impact of aeration on the lubricant behavior in a tapered roller bearing: Innovative numerical modelling and validation via particle image velocimetry
Artikel i vetenskaplig tidskrift, 2022

The air-lubricant interaction causes aeration which influences lubrication mechanisms in rolling-element-bearings. The goal of this paper is to develop a Computational Fluid Dynamics (CFD) model capable to take into consideration aeration. A new solver was implemented in the open-source environment OpenFOAM®. A dip lubricated tapered-roller-bearing was simulated with the new and a standard solver. The numerical predictions were compared with experimental data acquired on a dedicated test rig exploiting Particle Image Velocimetry (PIV). The comparison of the standard predictions and the experimental data for high shaft rotational speeds (higher level of aeration) shows discrepant results. On the other hand, the solver that takes aeration into account leads to results which are comparable to the experimental ones in all rotational ranges investigated via PIV.

CFD

Lubrication

PIV

Aeration

OpenFOAM®

Tapered roller bearing

Författare

Lorenzo Maccioni

Free University of Bozen-Bolzano

Valery Chernoray

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Marco Nicola Mastrone

Free University of Bozen-Bolzano

Christof Bohnert

Schaeffler Technologies

Franco Concli

Free University of Bozen-Bolzano

Tribology International

0301-679X (ISSN)

Vol. 165 107301

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Farkostteknik

Strömningsmekanik och akustik

Infrastruktur

Chalmers strömningslaboratorium

DOI

10.1016/j.triboint.2021.107301

Mer information

Senast uppdaterat

2022-02-27