On the critical amplitude in oscillating rolling element bearings

Small oscillating amplitudes (~0. 1°) and larger (> 1°) can both lead to wear, which complicates the evaluation of the operating conditions. In this work, a simulation model is used to discuss critical amplitudes. The parametric study, which includes 125 simulations, shows the effect of load and...

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Bibliographic Details
Published in:Tribology international 2021-11, Vol.163, p.107154, Article 107154
Main Authors: Schwack, Fabian, Schneider, Volker, Wandel, Sebastian, de la Presilla, Román José, Poll, Gerhard, Glavatskih, Sergei
Format: Article
Language:English
Subjects:
Amplitudes
Coefficient of friction
Contact kinematics
Density
False brinelling
Fretting corrosion
Roller bearings
Simulation
Wear
Wear prevention
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Summary:Small oscillating amplitudes (~0. 1°) and larger (> 1°) can both lead to wear, which complicates the evaluation of the operating conditions. In this work, a simulation model is used to discuss critical amplitudes. The parametric study, which includes 125 simulations, shows the effect of load and coefficient of friction on the frictional work density for amplitudes ranging from 0.1 to 2.5°. The study concludes that the frictional work density increases with the oscillating amplitude up to a certain point, where it becomes almost constant in relation to the amplitude. This point is reached when the amplitude is so large that a continuous overlapping of the contact zone no longer occurs. It is precisely this point that marks the critical oscillation amplitude. [Display omitted]
ISSN:0301-679X
1879-2464
1879-2464
DOI:10.1016/j.triboint.2021.107154