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Simulative investigation of rubber damper elements for planetary touch-down bearings

Schüssler, Benedikt ; Hopf, Timo ; Rinderknecht, Stephan (2022):
Simulative investigation of rubber damper elements for planetary touch-down bearings. (Publisher's Version)
In: Bulletin of the Polish Academy of Sciences. Technical Sciences, 69 (6), PAS, Division IV Technical Sciences, ISSN 0239-7528, e-ISSN 2300-1917,
DOI: 10.26083/tuprints-00021194,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Simulative investigation of rubber damper elements for planetary touch-down bearings
Language: English
Abstract:

Designing touch-down bearings (TDB) for outer rotor flywheels operated under high vacuum conditions constitutes a challenging task. Due to their large diameters, conventional TDB cannot suited well, and a planetary design is applied, consisting of a number of small rolling elements distributed around the stator. Since the amplitude of the peak loads during a drop-down lies close to the static load rating of the bearings, it is expected that their service life can be increased by reducing the maximum forces. Therefore, this paper investigates the influence of elastomer rings around the outer rings in the TDB using simulations. For this purpose, the structure and the models used for contact force calculation in the ANEAS simulation software are presented, especially the modelling of the elastomers. Based on the requirements for a TDB in a flywheel application, three different elastomers (FKM, VMQ, EPDM) are selected for the investigation. The results of the simulations show that stiffness and the type of material strongly influence the maximum force. The best results are obtained using FKM, leading to a reduction of the force amplitude in a wide stiffness range.

Journal or Publication Title: Bulletin of the Polish Academy of Sciences. Technical Sciences
Volume of the journal: 69
Issue Number: 6
Publisher: PAS, Division IV Technical Sciences
Collation: 9 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering > Institute for Mechatronic Systems in Mechanical Engineering (IMS)
Date Deposited: 22 Apr 2022 11:31
Last Modified: 22 Apr 2022 11:32
DOI: 10.26083/tuprints-00021194
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-211942
Additional Information:

Keywords: touch-down bearing; flywheel; drop-down simulation; rubber

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21194
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