Rotor active vibration control via internal magnetic bearings and a concentric inner shaft coupling

Chris Lusty, Necip Sahinkaya, Patrick Keogh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel topology based on active magnetic bearing coupling for reducing synchronous vibration in rotors at critical speeds is outlined. The topology consists of a hollow rotor with a flexible concentric secondary shaft running along its length. Between the two shafts are one or more actively managed couplings. A design of a test rig to illustrate the effectiveness of the concept is presented, and results of finite element modelling on the rig are provided. It is shown that for the specific topology modelled, peak vibration amplitudes are around an order of magnitude lower than those of a decoupled rotor.

Original languageEnglish
Title of host publicationProceedings of the 9th IFToMM International Conference on Rotor Dynamics
Subtitle of host publicationPart XI
EditorsP. Pennacchi
Place of PublicationSwitzerland
PublisherSpringer
Pages1407-1414
Number of pages8
ISBN (Print)9783319065892
DOIs
Publication statusPublished - 2015
Event9th IFToMM International Conference on Rotor Dynamics, 2014 - Milan, Italy
Duration: 22 Sep 201425 Sep 2014

Publication series

NameMechanisms and Machine Science
Volume21

Conference

Conference9th IFToMM International Conference on Rotor Dynamics, 2014
CountryItaly
CityMilan
Period22/09/1425/09/14

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Keywords

  • Active control
  • Concentric shafts
  • Magnetic bearings
  • Rotor vibration

Cite this

Lusty, C., Sahinkaya, N., & Keogh, P. (2015). Rotor active vibration control via internal magnetic bearings and a concentric inner shaft coupling. In P. Pennacchi (Ed.), Proceedings of the 9th IFToMM International Conference on Rotor Dynamics: Part XI (pp. 1407-1414). (Mechanisms and Machine Science; Vol. 21). Switzerland: Springer. https://doi.org/10.1007/978-3-319-06590-8_115