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Erschienen in:

2015 | OriginalPaper | Buchkapitel

A Contact Event Model for an AMB-supported Rotor

verfasst von : Oskari Halminen, Antti Kärkkäinen, Jussi Sopanen, Aki Mikkola

Erschienen in: Proceedings of the 9th IFToMM International Conference on Rotor Dynamics

Verlag: Springer International Publishing

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Abstract

Active magnetic bearings (AMBs) offer considerable benefits compared to conventional bearings. On the other hand, AMBs require backup bearings to avoid damage resulting from a failure in the component itself, in the power system, or in the control system. During a rotor-bearing contact event, the structure of the backup bearings has an impact on the dynamic actions of the rotor. In this paper, the dynamics of an AMB-supported rotor during contact with backup bearings is studied with a simulation model. Modeling of the backup bearings is done using a comprehensive cageless ball bearing model, which includes the effect of misalignment. The elasticity of the rotor is described using the finite element method. Verification of the model for misaligned cageless ball bearings is done by comparing the simulated results to measurements. The verified model of the backup bearings is found to correspond to the features of a real system.

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Vorheriges Kapitel Experimental Assessment of Touchdown Bearing Contact Forces in Magnetic Bearing Systems

Nächstes Kapitel Internal Sensing and Actuation Strategies for Smart Machine Rotors

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Titel: A Contact Event Model for an AMB-supported Rotor
verfasst von: Oskari Halminen
Antti Kärkkäinen
Jussi Sopanen
Aki Mikkola
Verlag: Springer International Publishing
Buch: Proceedings of the 9th IFToMM International Conference on Rotor Dynamics
Print ISBN: 978-3-319-06589-2

Electronic ISBN: 978-3-319-06590-8

Copyright-Jahr: 2015
DOI: https://doi.org/10.1007/978-3-319-06590-8_124

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