Engineering Mechanics

International Conference

Proceedings Vol. 27/28 (2022)


May 9 – 12, 2022, Milovy, Czech Republic
Editors: Cyril Fischer and Jiří Náprstek

Copyright © 2022 Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prague

ISBN 978-80-86246-48-2 (printed)
ISBN 978-80-86246-51-2 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Numerical and experimental modal analysis of an induction electric motor
Ferfecki P., Molčan M., Nevřela M., Páleník R.
pages 101 - 104, full text

The presented work deals with the modal analysis of the components of the two-pole induction motor and its subassemblies. For the vibration study, it is challenging to build up the computational model of the assemblies of the electric motor magnetic circuits. The design uncertainties in the computational model are inherent; therefore, reasonable simplifications of the rotor and stator assemblies with the tuned and experimentally identified mechanical parameters are applied. The computational model of the induction motor for the modal analysis is developed using the finite element approach. The experimental and computational modal analyses are performed for the shaft, frame, shields, parts of terminal box, and assemblies of the winding, rotor and stator stack, frame with stator stack, terminal box, and the whole motor. The results show that the computed and measured modal parameters of components such as shaft, shields, and frame have almost the same mode shapes and natural frequencies.

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Ownership of copyright in original research articles remains with the Authors, and provided that, when reproducing parts of the contribution, the Authors acknowledge and/or reference the Proceedings, the Authors do not need to seek permission for re-use of their material.

All papers were reviewed by members of the scientific committee.

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