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Investigations on the rolling bearing cage dynamics with regard to different operating conditions and cage properties

Title data

Schwarz, Sebastian ; Grillenberger, Hannes ; Tremmel, Stephan ; Wartzack, Sandro:
Investigations on the rolling bearing cage dynamics with regard to different operating conditions and cage properties.
Event: Antriebstechnisches Kolloquium ATK 2021 , 09.-11. März 2021 , Digital.
(Conference item: Conference , Paper )

Abstract in another language

The dynamic behavior of a cage can have a significant influence on the performance and the noise of a rolling bearing. In case of an unstable or high-frequency cage movement, vibrations are transmitted to the adjacent machine elements and the environment, which can influence the operating behavior of the whole system. In addition, a loud noise can often be perceived, which is referred to in the literature as cage rattling or squealing.
In this paper, characteristics of different cage movements are investigated using multibody sim-ulations and experimental investigations. For this purpose, essential properties of the fundamen-tally observable cage movement types “stable”, “unstable” and “circling” are presented. The cal-culated cage dynamics and the type of cage motion are used to show dependencies between the operating conditions and the resulting cage movement such as inner ring rotational speed, bearing load or cage characteristics such as pocket clearance. Based on the simulations, inter-actions between the input parameters can also be determined. The results are used to identify operation-critical conditions and cage properties that lead to high cage dynamics. Finally, a comparison between the results of the multibody calculations and optical measure-ments is made. The optical measurements are performed using high-speed cameras. Reference markers fixed on the cage and digital image correlation allow the evaluation of the kinematics as well as the deformation of the cage. These results are compared with the simulation data to ensure a high quality of dynamics simulation.

Further data

Item Type: Conference item (Paper)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing Stephan Tremmel
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 10 Jun 2021 11:58
Last Modified: 10 Jun 2021 11:58
URI: https://eref.uni-bayreuth.de/id/eprint/65755