Ahmed Galai
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Ahmed Galai has a total of 3 co-authors. Here are the top co-authors by number of shared publications:
- Allan de Barros
Institute for Drive Systems and Power Electronics, Leibniz University Hannover, Hannover, Germany
1 shared publication - Amir Ebrahimi
Institute for Electrical Drives, Power Electronics, and Devices, University of Bremen, Bremen, Germany
1 shared publication - Babette Schwarz
Voith Hydro Holding GmbH & Company KG, 89522 Heidenheim, Germany
1 shared publication
Latest Publications
- Open Access
Practical Modal Analysis of a Prototyped Hydrogenerator
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.
Open AccessPractical Modal Analysis of a Prototyped Hydrogenerator
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.