Comparison of thermal stresses developed during transients on a damaged rotor cage

Vicente Climente-Alarcon, Antero Arkkio, Jose A. Antonino-Daviu

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

1 Sitaatiot (Scopus)
139 Lataukset (Pure)

Abstrakti

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.
AlkuperäiskieliEnglanti
OtsikkoProceedings of the 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
KustantajaIEEE
Sivut3545-3551
Sivumäärä7
ISBN (elektroninen)978-1-5090-2998-3
DOI - pysyväislinkit
TilaJulkaistu - 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE Energy Conversion Congress and Exposition - Cincinnati, Yhdysvallat
Kesto: 1 lokakuuta 20175 lokakuuta 2017

Julkaisusarja

NimiIEEE Energy Conversion Congress and Exposition
ISSN (painettu)2329-3721

Conference

ConferenceIEEE Energy Conversion Congress and Exposition
LyhennettäECCE
MaaYhdysvallat
KaupunkiCincinnati
Ajanjakso01/10/201705/10/2017

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  • Siteeraa tätä

    Climente-Alarcon, V., Arkkio, A., & Antonino-Daviu, J. A. (2017). Comparison of thermal stresses developed during transients on a damaged rotor cage. teoksessa Proceedings of the 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (Sivut 3545-3551). (IEEE Energy Conversion Congress and Exposition). IEEE. https://doi.org/10.1109/ECCE.2017.8096631