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On the critical amplitude in oscillating rolling element bearings

authored by
Fabian Schwack, Volker Schneider, Sebastian Wandel, Roman José de la Presilla, Sergei Glavatskih
Abstract

Small oscillating amplitudes (~0. 1°) and larger (> 1°) can both lead to wear, w hich 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.

Organisation(s)
Institute of Machine Elements and Engineering Design
External Organisation(s)
Royal Institute of Technology (KTH)
Type
Article
Journal
Tribology International
Volume
163
ISSN
0301-679X
Publication date
11.2021
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Mechanics of Materials, Mechanical Engineering, Surfaces, Coatings and Films, Surfaces and Interfaces
Electronic version(s)
https://doi.org/10.1016/j.triboint.2021.107154 (Access: Open)