TY - CHAP A1 - Schlensok, Christoph A1 - Brakensiek, D. A1 - Leßmann, M. A1 - Herranz Gracia, Mercedes A1 - Hameyer, Kay A1 - Henneberger, G. T1 - Simulation of permanent-magnet electrical machines and levitation systems using FEM T2 - 22nd CAD-FEM User’s Meeting Y1 - 2004 ER - TY - CHAP A1 - Schlensok, Christoph A1 - van der Giet, Michael A1 - Herranz Gracia, Mercedes A1 - van Riesen, Dirk A1 - Hameyer, Kay T1 - Structure-Dynamic Analysis of an Induction Machine depending on Stator-Housing Coupling T2 - 6th International Machine and Drives Conference, IEMDC N2 - The estimation and calculation of the acoustic sound of electric machinery is of high interest. Various approaches have been presented relying either on analytical or on numerical models. In general, the analytical models are based on the electromagnetic-field theory and the results are compared to measurements. Numerical models allow for the separation of different exciting forces stemming from various effects. In the studied case of an induction motor with squirrel-cage rotor three effects are taken into account in the analytical model: the fundamental field, saturation, and eccentricity. The numerical analysis is applied for the analysis of acoustic sound of an electric machine. Nevertheless, the numerical results have to be verified. Hence, they are compared to the physically based analytical results. The radiated noise depends directly on the surface's deformation of the machine. Therefore, the analysis is focused on the structure-dynamic vibrations. The combined analysis presented here, allows for the reduction of vibrations and noise optimizing the coupling of stator and housing. Here, an induction machine (IM) with squirrel-cage rotor is studied. Its housing is mounted with six spiral-steel springs to the stator. With the presented method the impact of different numbers of springs is analyzed. Y1 - 2007 UR - http://bib.iem.rwth-aachen.de/IEMpublications/AltesBib/2007CSHousing.pdf U6 - https://doi.org/10.1109/IEMDC.2007.383657 PB - IEEE ER - TY - JOUR A1 - Schlensok, Christoph A1 - van der Giet, Michael A1 - Herranz Gracia, Mercedes A1 - van Riesen, Dirk A1 - Hameyer, Kay T1 - Structure-Dynamic Analysis of an Induction Machine Depending on Stator-Housing Coupling JF - IEEE Transactions on Industry Applications N2 - The estimation and the calculation of the acoustic sound of electric machinery are of particular interest nowadays. Various approaches have been presented, relying either on analytical or on numerical models. The analytical models presented here are based on the electromagnetic-field theory. Numerical models are applied to derive the exciting forces stemming from various sources and effects. The numerical results have to be verified. Hence, they are compared with the physically based analytical results. The radiated noise depends directly on the surface deformation of the machine. Therefore, the analysis is focused on the structure-dynamic vibration. The combined analysis presented here allows for the reduction of vibration and noise, optimizing the coupling of the machine's stator and housing. The studied induction machine's housing is mounted with six spiral-steel springs to the stator. With the presented method, the impact of different numbers of springs is analyzed exemplarily. KW - asynchronous machines KW - finite element analysis KW - vibrationselectric machinery KW - induction machine KW - spiral-steel springs KW - stator-housing coupling KW - structure-dynamic analysis Y1 - 2008 U6 - https://doi.org/10.1109/TIA.2008.921440 SN - 0093-9994 VL - 44 IS - 3 SP - 753 EP - 759 ER - TY - JOUR A1 - Schlensok, Christoph A1 - Herranz Gracia, Mercedes A1 - Hameyer, Kay T1 - Combined Numerical and Analytical Method for Geometry Optimization of a PM Motor JF - IEEE Transactions on Magnetics N2 - For the reduction of the cogging torque of permanent-magnet synchronous machines several approaches are known. But cogging torque predictions for arbitrary types of machines using the same approach are still troublesome and imprecise. Therefore, a fast optimization process is developed and presented in this paper. Here, the combination of both numerical and analytical simulation results in such a fast method Y1 - 2006 UR - http://bib.iem.rwth-aachen.de/IEMpublications/AltesBib/2006CSCombined.pdf U6 - https://doi.org/10.1109/TMAG.2006.871379 VL - 42 IS - 4 SP - 1211 EP - 1214 PB - IEEE ER - TY - CHAP A1 - Schlensok, Christoph A1 - Herranz Gracia, Mercedes A1 - Hameyer, Kay T1 - Structure-Dynamic Simulation of an Induction Maschine with Eccentrically Positioned Squirrel-Cage Rotor T2 - XIII International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering, ISEF Y1 - 2005 UR - https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7414475 ER - TY - CHAP A1 - Schlensok, Christoph A1 - Herranz Gracia, Mercedes A1 - Hameyer, Kay T1 - Combined Numerical and Analytical Method for a Geometry Optimization of a PM Motor T2 - 16th International Conference on the Computation of Electromagnetic Fields, COMPUMAG Y1 - 2005 UR - https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1608430 ER -