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The aim of this paper is the multi-physical modeling of synchronous permanent magnet machines using reluctance network, lumped mechanical & thermal models. First, the modeling approaches are presented and validated by comparing the obtained results to those of finite element method. Second series of parametric studies are done to maximize the torque's mean value and reduce its ripple by acting...
This paper presents a summary of a vibrational behavior investigation of a 27 slots / 24 poles combination surface mounted synchronous electric motor. To achieve this investigation, first, an electromagnetic analysis is done using a quasi 3D finite element model allowing to consider the rotor skewing and to compute the machine magnetic quantities. Second, a modal analysis is done using a 3D FE structural...
This paper presents a detailed study of the impact of the airgap magnetic field harmonics on some performances of a disc-type switching flux permanent magnet generator. More precisely, the presented study concerns the cogging torque, the total torque as well as the torque ripple, the eddy currents in the permanent magnets and finally the vibro-acoustic emissions due to electromagnetic origins. First,...
This paper focuses on some aspects of the mechanical behaviour of a discoidal switching flux permanent magnet generator in three sections. The first one deals with torque ripple reduction by the identification of the optimal rotor tooth size. The second one focus on the common problem of the rotor's mechanical strength in axial flux machines studying their deflection and optimal design for mass reduction...
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