Inertial centering approach for high speed flexible rotor systems, supported by AMBs

Rami Levy, Shai Arogeti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Undesired vibrations due to mechanical imbalance is an inevitable phenomenon related to high speed rotating systems. In the absence of radial asymmetry, the steady state response of the rotor can be represented as a synchronous forward circular whirling motion. In this motion, the mass elements of the rotor do not carry relative accelerations since they all orbit in a circular motion of a constant radius and identical frequency. Therefore, in these steady state conditions, the flexible rotor can be regarded as a rigid rotor. Motivated by this observation, a rigid body analysis is utilized in order to derive a set of constraint relations that are required for inertial centering, namely, for a rotation about the rotor's center of mass and its principal axis. In order to force the existence of the inertial centering constraints, the shaft is supported by a set of active magnetic bearings (AMBs), and a suitable control system is developed. The performances of the developed controller are demonstrated via numerical simulations.

Original languageEnglish
Title of host publication2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages289-294
Number of pages6
ISBN (Electronic)9781479951994
DOIs
StatePublished - 1 Jan 2014
Event2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014 - Singapore, Singapore
Duration: 10 Dec 201412 Dec 2014

Publication series

Name2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014

Conference

Conference2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014
Country/TerritorySingapore
CitySingapore
Period10/12/1412/12/14

Keywords

  • Active Magnetic Bearing
  • High Speed Flexible Rotor
  • Inertial Centering

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Artificial Intelligence
  • Control and Systems Engineering

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