Rotor Vibrations in Electrical Machines Due to Electromagnetic Forces

  • Mathias MairEmail author
  • Bernhard Weilharter
  • Katrin Ellermann
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 21)


The rotor vibrations caused by rotor unbalance and electromagnetic forces are investigated for a two-pole induction machine. Using Timoshenko beam elements, the heterogeneous assembly of the rotor is modeled and the different material properties are considered. The nonlinear simulation includes effects of rotor unbalance and the unbalanced magnetic pull (UMP). Machine parameters influencing the unbalanced magnetic pull are varied to analyze their impact on the rotor vibration.


Rotor vibrations Timoshenko beam theory Unbalanced magnetic pull 



This work was supported in part by the Christian Doppler Research Association (CDG) and in part by the ELIN Motoren GmbH.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Mathias Mair
    • 1
    Email author
  • Bernhard Weilharter
    • 2
    • 3
  • Katrin Ellermann
    • 1
  1. 1.Institute for MechanicsGraz University of TechnologyGrazAustria
  2. 2.Institute for Electrical Drives and MachinesGraz University of TechnologyGrazAustria
  3. 3.Christian Doppler Laboratory for Multiphysical SimulationAnalysis and Design of Electrical MachinesGrazAustria

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