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Evaluation of the effects of geometrical deviations on the fatigue life and vibrations of cylindrical roller bearings

Title data

Dahiwal, Rahul ; Aschenbrenner, Alexander ; Schleich, B. ; Wiesker, S. ; Kiekbusch, T. ; Tremmel, Stephan ; Wartzack, Sandro ; Sauer, B.:
Evaluation of the effects of geometrical deviations on the fatigue life and vibrations of cylindrical roller bearings.
In: Bearing World Journal. Vol. 3 (December 2018) . - pp. 7-21.
ISSN 2513-1753

Official URL: Volltext

Project information

Project financing: Bundesministerium für Bildung und Forschung

Abstract in another language

Due to uncertainties in manufacturing processes all components suffer from geometric deviations and imperfections, even high-precision components like roller bearings. In general, tolerances define the allowable deviations of components and ensure their manufacturability, mountability and operational behavior. Nevertheless, geometric deviations can still unpredictably influence the operational behavior of components. Indeed, studies have shown that deviations together with the operating clearance can significantly affect the dynamic behavior and thus the fatigue life of roller bearings. In this contribution, two simulation methods are employed in order to consider and study the effect of geometric deviations like roundness or dimensional deviations of bearings and their adjacent components (shaft and housing) on a cylindrical roller bearing’s vibrational behavior and fatigue life. First, a statistical simulation model is introduced allowing an easy way to screen the operational clearance and fatigue life of a large number of cylindrical roller bearings. Afterward, a multibody dynamic model is used to gather detailed information about the load distribution on each rolling element and the inner ring displacement during operation. These methods allow a user of roller bearings a better understanding of the correlation between geometric deviations and a roller bearing’s vibrational behavior as well as fatigue life. The methods should also aid a user to optimize the geometric definition and tolerancing of their components. After a detailed description of the methods, their application is demonstrated for a use case.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Cylindrical roller bearing; Geometric definition and tolerancing; Statistical variation simulation; Dynamics simulation
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 14 Sep 2020 12:27
Last Modified: 14 Sep 2020 12:27
URI: https://eref.uni-bayreuth.de/id/eprint/56981