Details
| Original language | English |
|---|---|
| Pages (from-to) | 853-864 |
| Number of pages | 12 |
| Journal | Vibration |
| Volume | 4 |
| Issue number | 4 |
| Publication status | Published - 10 Nov 2021 |
Abstract
The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine. For a suitable addressment of the problem, it is necessary to accurately predict the eigenmodes and eigenfrequencies of the mechanical system. However, different results for the eigenfrequencies can be achieved depending on the applied model and material parameters. This work contributes to solving this issue by investigating the impact of different input parameters on the eigenmodes and eigenfrequencies calculated by analytical and numerical models. The results are discussed and compared to measurements performed on a prototyped 732 kVA hydrogenerator.
Keywords
- eigenfrequencies, electrical machines, hydrogenerators, modal analysis, vibration
ASJC Scopus subject areas
- Materials Science(all)
- Materials Science (miscellaneous)
- Engineering(all)
- Engineering (miscellaneous)
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In: Vibration, Vol. 4, No. 4, 10.11.2021, p. 853-864.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Practical Modal Analysis of a Prototyped Hydrogenerator
AU - de Barros, Allan
AU - Galai, Ahmed
AU - Ebrahimi, Amir
AU - Schwarz, Babette
PY - 2021/11/10
Y1 - 2021/11/10
N2 - The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine. For a suitable addressment of the problem, it is necessary to accurately predict the eigenmodes and eigenfrequencies of the mechanical system. However, different results for the eigenfrequencies can be achieved depending on the applied model and material parameters. This work contributes to solving this issue by investigating the impact of different input parameters on the eigenmodes and eigenfrequencies calculated by analytical and numerical models. The results are discussed and compared to measurements performed on a prototyped 732 kVA hydrogenerator.
AB - The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine. For a suitable addressment of the problem, it is necessary to accurately predict the eigenmodes and eigenfrequencies of the mechanical system. However, different results for the eigenfrequencies can be achieved depending on the applied model and material parameters. This work contributes to solving this issue by investigating the impact of different input parameters on the eigenmodes and eigenfrequencies calculated by analytical and numerical models. The results are discussed and compared to measurements performed on a prototyped 732 kVA hydrogenerator.
KW - eigenfrequencies
KW - electrical machines
KW - hydrogenerators
KW - modal analysis
KW - vibration
UR - http://www.scopus.com/inward/record.url?scp=85141062448&partnerID=8YFLogxK
U2 - 10.3390/vibration4040048
DO - 10.3390/vibration4040048
M3 - Article
AN - SCOPUS:85141062448
VL - 4
SP - 853
EP - 864
JO - Vibration
JF - Vibration
IS - 4
ER -