A Study on the Vibrations of the Induction Motors Having Squirrel Cage Rotor

Main Article Content

Ioan Peter
Arpad Borsos


In the present paper are examined the vibrations of the induction motors having squirrel cage rotor. The study is per-formed by means of spectrograms presenting the vibration speed depending on the frequency, drawn up for motors produced by S.C.Electroprecizia Electrical Motors Sacele and on the base of the study of the specialty literature. There have been studied the motors of 3000, 1500,1000 RPM up to 7,5 kW and are proposed measures to reduce their vibra-tion level. Among the possible solutions proposed are using of a waved spring washer between the end shield and the bearing's external ring, the inclination in V or zigzag of the cage's bars at a half of the rotor pitch and reducing the stator field harmonics.

Article Details

How to Cite
Peter, I., & Borsos, A. (2023). A Study on the Vibrations of the Induction Motors Having Squirrel Cage Rotor. Engineering TODAY, 2(1). https://doi.org/10.5937/engtoday2300002P
Original Scientific Papers


P.C.M. Lamim Filho, J.N. Brito; V.A.D. Silva and R. Pederiva “Detection of electrical faults in induction motors using vibration analysis”, J. Qual. Main. Eng., Vol. 14, p. 364, https://doi.org/10.1108/JQME-06-2013-0040, (2013)

K. Agoston, “Vibration Detection of the Electrical Motors using Strain Gauges” Proceedings of the 9th International Conference Interdisciplinarity in Engineering, “INTER-ENG 2015”, Targu-Mures (Romania), 8-9 October 2015, p. 767, (2016)

M.V. Kritsky, V. Polishchuk, N.V. Gerasimov, and A.S. Glazyrin “Analysis of the Influence of Electrical Damage in Field Magnetizing Coil on Synchronous Round-Rotor Motor Vibration”, B Tom Pol U, Vol. 329, p. 140 (2018)

Y.K. Chaudhari, J.A. Gaikwad and J.V. Kulkami, “Vibration Analysis for Bearing Fault Detection in Electrical Motors”, First International Conference on Networks & Soft Computing (ICNSC), Guntur (India), Aug 19-20 2014, p. 146, (2014)

R. Yousefi, R. Yusof and R. Arfa, “Fault Diagnosis of Three - Phase Induction Motors Based on Vibration and Electrical Current Signals”, J. Tech., Vol. 78, No. 9, p. 129, https://doi.org/10.11113/jt.v78.7447, (2016)

O.M. Vasilevskyi, P. Kulakov, I. A. Dudatiev, V. M. Didych et. al. “Vibration Diagnostic System for Evaluation of State Interconnected Electrical Motors Mechanical Parameters”, Photonics Applications In Astronomy, Communications, Industry, and High Energy Physics Experiments, Wilga (Poland), May 28 - Jun 06, 2017, https://doi.org/10.1117/12.2280993, (2017)

M Baranski and B.Bedkowski, “Sensorless Vibration Diagnostics of Permanent Magnets Traction Electrical Motors-The Shaft Unbalance Example”, Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering (EAME 2015), Phuket (Thailand), July 26-27, 2015, p. 472, https://doi.org/10.2991/eame-15.2015.132, (2015)

IEC 60034-14 European standard. Rotating electrical machines – Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher – Measurement, evaluation and limits of vibration severity https://www.sis.se/api/document/preview/80006087/

E. IaIudin, “Insulating against noise” (translation from Romanian), Editura Tehnică Bucureşti (Romania), (1968)

J. Yoo and N. Kikuchi, “Topology Optimization for Reduction of Vibration Caused by Magnetic HarmonicExcitation” IEE Trans. Mag., Vol. 38, p. 3643, https://doi.org/10.1109/TMAG.2002.804806, (2002)

B. Heller and VHamata “Harmonic field effects in induction machines”, Elsevier Scientific Publishing Company, Amsterdam (Netherlands), (1977)




M.V. Dragoi, M.D. Nasulea, M. Matejic and G. Oancea, “Balancing Rotating Parts. A New Method and Device”. Machine and Industrial Design in Mechanical Engineering. KOD 2021. Mechanisms and Machine Science, Vol. 109, Springer, Cham. p. 183, https://doi.org/10.1007/978-3-030-88465-9_15, (2022).

W.R. Finley, M. Hadowanec and W. G. Holter:”An Analytical Approach to Solving Motor Vibration Problems”, IEEE Trans. Ind. Appl., Vol. 36, pp. 1467 – 1480, https://doi.org/10.1109/28.871297, (1999).

A. A. Nicolaide, “Electrical machines. Theory. Design” (translation from Romanian), Vol. 1, Editura Scrisul Românesc, Craiova (Romania), (1975).

I. Peter, “The noise of three-phase asynchronous motors with a cage-type rotor” (translation from Romanian), PhD Thesis, Transilvania University of Brașov, Braşov (Romania), (2004).

K. Delaere, “Computational and experimental analysis of electric machine vibrations caused by magnetic forces and magnetostriction, Katholieke Universiteit Leuven, (Belgium), (2002).

G. Scutaru and I. Peter, “The noise of three-phase asynchronous motors with a cage-type rotor” (translation from Romanian), Editura Lux Libris, Brasov (Romania), (2004)