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arXiv · 1707.09898

A fast finite-difference algorithm for topology optimization of permanent magnets

Claas Abert·Christian Huber·Florian Bruckner·Christoph Vogler·Gregor Wautischer·Dieter Suess
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Abstract

We present a finite-difference method for the topology optimization of permanent magnets that is based on the FFT accelerated computation of the stray-field. The presented method employs the density approach for topology optimization and uses an adjoint method for the gradient computation. Comparsion to various state-of-the-art finite-element implementations shows a superior performance and accuracy. Moreover, the presented method is very flexible and easy to implement due to various preexisting FFT stray-field implementations that can be used.

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Claas Abert, Christian Huber, Florian Bruckner, Christoph Vogler, Gregor Wautischer, Dieter Suess. 2017-07-31. A fast finite-difference algorithm for topology optimization of permanent magnets. https://doi.org/10.1063/1.4998532

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