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09/02/2023
Index-aware learning of circuits
Electrical circuits are present in a variety of technologies, making the...
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08/04/2023
Reduced Basis Approximation for Maxwell's Eigenvalue Problem and Parameter-Dependent Domains
In many high-frequency simulation workflows, eigenvalue tracking along a...
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07/25/2023
Rational kernel-based interpolation for complex-valued frequency response functions
This work is concerned with the kernel-based approximation of a complex-...
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06/23/2023
A Stabilized Circuit-Consistent Foil Conductor Model
The magnetoquasistatic simulation of large power converters, in particul...
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06/22/2023
Data-Driven Update of B(H) Curves of Iron Yokes in Normal Conducting Accelerator Magnets
Constitutive equations are used in electromagnetic field simulations to ...
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06/22/2023
Combination of Measurement Data and Domain Knowledge for Simulation of Halbach Arrays with Bayesian Inference
Accelerator magnets made from blocks of permanent magnets in a zero-clea...
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06/15/2023
Multi-Objective Optimization of Electrical Machines using a Hybrid Data-and Physics-Driven Approach
Magneto-static finite element (FE) simulations make numerical optimizati...
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06/15/2023
Deep learning based Meta-modeling for Multi-objective Technology Optimization of Electrical Machines
Optimization of rotating electrical machines is both time- and computati...
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03/15/2023
Aspects of Coupled Problems in Computational Electromagnetics Formulations
This paper addresses different aspects of "coupled" model descriptions i...
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02/01/2023
Low-Frequency Stabilization of Dielectric Simulation Problems with Conductors and Insulators
When simulating resistive-capacitive circuits or electroquasistatic prob...
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12/20/2022
On the computation of analytic sensitivities of eigenpairs in isogeometric analysis
The eigenmodes of resonating structures, e.g., electromagnetic cavities,...
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12/13/2022
How to Build the Optimal Magnet Assembly for Magnetocaloric Cooling: Structural Optimization with Isogeometric Analysis
In the search for more efficient and less environmentally harmful coolin...
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07/23/2022
A Spline-based Partial Element Equivalent Circuit Method for Electrostatics
This contribution investigates the connection between Isogeometric Analy...
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04/13/2022
Electromagnetic Quasistatic Field Formulations of Darwin Type
Electromagnetic quasistatic (EMQS) fields, where radiation effects are n...
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04/11/2022
Hermite-type modifications of BOBYQA for optimization with some partial derivatives
In this work we propose two Hermite-type optimization methods, Hermite l...
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04/11/2022
Multi-Objective Yield Optimization for Electrical Machines using Machine Learning
This work deals with the design optimization of electrical machines unde...
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03/01/2022
Mode Recognition by Shape Morphing for Maxwell's Eigenvalue Problem
In electrical engineering, for example during the design of superconduct...
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02/11/2022
Torque Computation with the Isogeometric Mortar Method for the Simulation of Electric Machines
In this work isogeometric mortaring is used for the simulation of a six ...
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01/24/2022
Performance analysis of Electrical Machines based on Electromagnetic System Characterization using Deep Learning
The numerical optimization of an electrical machine entails computationa...
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01/21/2022
Variational Autoencoder based Metamodeling for Multi-Objective Topology Optimization of Electrical Machines
Conventional magneto-static finite element analysis of electrical machin...
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12/10/2021
On torque computation in electric machine simulation by harmonic mortar methods
The use of trigonometric polynomials as Lagrange multipliers in the harm...
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10/29/2021
Tree-Cotree Decomposition of Isogeometric Mortared Spaces in H(curl) on Multi-Patch Domains
When applying isogeometric analysis to engineering problems, one often d...
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07/16/2021
Parareal for Higher Index Differential Algebraic Equations
This article proposes modifications of the Parareal algorithm for its ap...
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06/29/2021
Local field reconstruction from rotating coil measurements in particle accelerator magnets
In this paper a general approach to reconstruct three dimensional field ...
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06/01/2021
On the Stability of Mixed Finite-Element Formulations for High-Temperature Superconductors
In this work, we present and analyze the numerical stability of two coup...
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05/17/2021
Efficient yield optimization with limited gradient information
In this work an efficient strategy for yield optimization with uncertain...
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12/16/2020
Deep Learning-based Prediction of Key Performance Indicators for Electrical Machine
The design of an electrical machine can be quantified and evaluated by K...
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12/14/2020
Parallel-in-Time Solution of Eddy Current Problems Using Implicit and Explicit Time-stepping Methods
The time domain analysis of eddy current problems often requires the sim...
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12/08/2020
Freeform shape optimization of a compact DC photo-electron gun using isogeometric analysis
Compact DC high-voltage photo-electron guns are able to meet the challen...
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11/05/2020
Magnetic Field Simulations Using Explicit Time Integration With Higher Order Schemes
A transient magneto-quasistatic vector potential formulation involving n...
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10/08/2020
Yield Optimization using Hybrid Gaussian Process Regression and a Genetic Multi-Objective Approach
Quantification and minimization of uncertainty is an important task in t...
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06/11/2020
Parallel-in-Time Simulation of Power Converters Using Multirate PDEs
This paper presents an efficient numerical algorithm for the simulation ...
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05/27/2020
Waveform relaxation for low frequency coupled field/circuit differential-algebraic models of index 2
Motivated by the task to design quench protection systems for supercondu...
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05/25/2020
On the stability of harmonic mortar methods with application to electric machines
Harmonic stator-rotor coupling offers a promising approach for the inter...
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04/03/2020
Towards a Parallel-in-Time Calculation of Time-Periodic Solutions with Unknown Period
This paper presents a novel parallel-in-time algorithm able to compute t...
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03/30/2020
A Blackbox Yield Estimation Workflow with Gaussian Process Regression for Industrial Problems
In this paper an efficient and reliable method for stochastic yield esti...
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01/27/2020
Solving Maxwell's Eigenvalue Problem via Isogeometric Boundary Elements and a Contour Integral Method
We solve Maxwell's eigenvalue problem via isogeometric boundary elements...
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12/20/2019
Adaptive Newton-Monte Carlo for efficient and fully error controlled yield optimization
In this paper we present an efficient and fully error controlled algorit...
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12/18/2019
IsoGeometric Approximations for Electromagnetic Problems in Axisymmetric Domains
We propose a numerical method for the solution of electromagnetic proble...
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12/11/2019
Generalized Circuit Elements
The structural analysis, i.e., the investigation of the differential-alg...
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12/06/2019
Parallel-in-Time Simulation of an Electrical Machine using MGRIT
We apply the multigrid-reduction-in-time (MGRIT) algorithm to an eddy cu...
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10/15/2019
3D Field Simulation Model for Bond Wire On-Chip Inductors Validated by Measurements
This paper proposes 3D field simulation models for different designs of ...
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09/30/2019
A Darwin Time Domain Scheme for the Simulation of Transient Quasistatic Electromagnetic Fields Including Resistive, Capacitive and Inductive Effects
The Darwin field model addresses an approximation to Maxwell's equations...
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08/15/2019
Shape Optimization of Rotating Electric Machines using Isogeometric Analysis and Harmonic Stator-Rotor Coupling
This work deals with shape optimization of electric machines using isoge...
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08/13/2019
Efficient Parallel-in-Time Solution of Time-Periodic Problems Using a Multi-Harmonic Coarse Grid Correction
This paper presents a highly-parallelizable parallel-in-time algorithm f...
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07/29/2019
Efficient simulation of DC-AC power converters using Multirate Partial Differential Equations
Switch-mode power converters are used in various applications to convert...
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07/08/2019
Multirate PWM balance method for the efficient field-circuit coupled simulation of power converters
The field-circuit coupled simulation of switch-mode power converters wit...
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06/21/2019
Uncertainty Modeling and Analysis of the European X-ray Free Electron Laser Cavities Manufacturing Process
This paper reports on comprehensive efforts on uncertainty quantificatio...
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06/21/2019
Uncertainty Modeling and Analysis of the European XFEL Cavities Manufacturing Process
This paper reports on comprehensive efforts on uncertainty quantificatio...
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05/30/2019