Magnetic field simulation with data-driven material modeling

H De Gersem, A Galetzka, IG Ion… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
This article develops a data-driven magnetostatic finite-element (FE) solver that directly
exploits the measured material data instead of a material curve constructed from it. The …

Shape and topology optimization of a permanent-magnet machine under uncertainties

P Putek, R Pulch, A Bartel, EJW ter Maten… - Journal of Mathematics …, 2016 - Springer
Our ultimate goal is a topology optimization for a permanent-magnet (PM) machine, while
including material uncertainties. The uncertainties in the output data are, eg, due to …

Uncertainty quantification for robust topology optimization of power transistor devices

P Putek, P Meuris, R Pulch… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
In this paper, we focus on incorporating a stochastic collocation method (SCM) into a
topological shape optimization of a power semiconductor device, including material and …

[PDF][PDF] Numerical approximation of the magnetoquasistatic model with uncertainties and its application to magnet design

U Römer - 2015 - tuprints.ulb.tu-darmstadt.de
This work addresses the magnetoquasistatic approximation of Maxwell's equations with
uncertainties in material data, shape and current sources, originating, eg, from …

Stochastic Modeling and Regularity of the Nonlinear Elliptic curl--curl Equation

U Römer, S Schöps, T Weiland - SIAM/ASA Journal on Uncertainty …, 2016 - SIAM
This paper addresses the nonlinear elliptic curl--curl equation with uncertainties in the
material law. It is frequently employed in the numerical evaluation of magnetostatic fields …

Reduction of optimization problem by combination of optimization algorithm and sensitivity analysis

F Mach - IEEE Transactions on Magnetics, 2015 - ieeexplore.ieee.org
An optimization technique based on the combination of optimization algorithm and
sensitivity analysis is discussed. The technique allows reducing the number of optimized …

Linear subspace reduction for quasistatic field simulations to accelerate repeated computations

D Schmidthäusler, S Schöps… - IEEE transactions on …, 2014 - ieeexplore.ieee.org
The design of electrical machines and high-voltage devices requires the simulation of non-
linear low frequency electromagnetic problems in time domain. Typically magneto-and …

Analysis and design of electrical machines with material uncertainties in iron and permanent magnet

M Li, MH Mohammadi, T Rahman… - … -The international journal …, 2017 - emerald.com
Purpose Manufacturing processes, such as laminations, may introduce uncertainties in the
magnetic properties of materials used in electrical machines. This issue, together with …

Shape optimization of a power MOS device under uncertainties

P Putek, P Meuris, R Pulch… - … , Automation & Test …, 2016 - ieeexplore.ieee.org
In this paper we focus on a shape/topology optimization problem of a power MOS transistor
under geometrical and material uncertainties to reduce the current density overshoot. This …

Robust topology optimization of a permanent magnet synchronous machine using multi-level set and stochastic collocation methods

P Putek, K Gausling, A Bartel, KM Gawrylczyk… - Scientific Computing in …, 2016 - Springer
The aim of this paper is to incorporate the stochastic collocation method (SCM) into a
topology optimization for a permanent magnet (PM) synchronous machine with material …