@inproceedings{19a69486f7df42d892215f2108998651,
title = "Comparison of thermal stresses developed during transients on a damaged rotor cage",
abstract = "Structural defects in the rotor cage of large electrical machines significantly impact their expected operational lifetime. This work simulates the stresses developed in a damaged rotor cage during different transient profiles and for different sizes of the imperfection. A combined model featuring electrical, thermal and mechanical stages as well as three different meshes reflecting a progressing narrowing of one of the bars in its junction to the end ring are used for this purpose. The results qualitatively agree with a previously presented fatigue test and show that under severe conditions the capability of aluminum to absorb stress is limited, and a state of plastic deformation is rapidly reached. The effect of a possible mitigation strategy is also studied.",
keywords = "finite element analaysis, induction motors, prognostics and health management, rotors, thermal stresses, transient analysis",
author = "Vicente Climente-Alarcon and Antero Arkkio and Antonino-Daviu, {Jose A.}",
year = "2017",
doi = "10.1109/ECCE.2017.8096631",
language = "English",
series = "IEEE Energy Conversion Congress and Exposition",
publisher = "IEEE",
pages = "3545--3551",
booktitle = "Proceedings of the 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017",
address = "United States",
note = "IEEE Energy Conversion Congress and Exposition, ECCE ; Conference date: 01-10-2017 Through 05-10-2017",
}