STRAY FIELD ANALYSIS FOR HIGH COMPLEX 3D MODELS USING MASSIVELY PARALLEL PROCESSING FUNCTIONALITY ON HPC1 SYSTEMS

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David Philipp Morisco, ROBERT BOSCH GMBH

Abstract

During the design process of electrical machines for traction applications a consideration of three dimensional electromagnetic effects is necessary to receive accurate results.
In conventional design methods a two dimensional finite element analysis with an additional approximation of three dimensional effects is widely used for design evaluation. For complex geometries and under the aspect of occurring stray fields within the machine, this workflow leads to accuracy reduction. More accurate is a three dimensional design evaluation using finite element analysis. Especially for the loss evaluation the calculation time significantly increase due to the magneto transient extension of the solved Maxwell equation.
One way of reducing the calculation time without decreasing the accuracy of the results is the usage of parallelization algorithms for single calculations on high performance multicore systems.
For the developed design process the massively parallel processing functionality of JMAG on high performance computing systems with multiple cores is used for analyzing different three dimensional effects on the losses of the machine.

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