Talks

2025

presented in the internal seminar "Methods Seminar: Reduced Basis Methods for the Simulation of Electric Machines

Combined Parameter and Shape Optimization of Electric Machines with Isogeometric Analysis Using Second Derivatives

On Simulation Challenges, Implementation Strategies and Benchmarks of Electric Machines

A higher-order time domain boundary element formulation based on isogeometric analysis and the convolution quadrature method

Partial Integration based regularization in BEM for 3D elastostatic problems: The role of line integrals

Parameter choices for a time domain boundary element formulation based on the generalized convolution quadrature method

Data-Driven Reduced Order Modeling Framework for Surrogate Modeling and Uncertainty Quantification in Electric Machine Design

2024

FMM and H-matrix based approaches within a 3D-ACA accelerated time domain boundary element method. Symposium of the International Association for Boundary Element Methods

Partial Integration based Regularization in Fast Multipole Boundary Element Method. Symposium of the International Association for Boundary Element Methods

A higher-order time domain Boundary Element formulation based on Isogeometric Analysis and the Convolution Quadrature Method. Symposium of the International Association for Boundary Element Methods.

Quantification of Steady-State Efficiency Maps vs. Time-Stepping Solutions for Drive Cycle Performance Analysis of Induction Motor. 27th International Conference on Electrical Machines and Systems (ICEMS)

Efficiency Map Versus Time-Stepping Solutions on the Drive Cycle Performance Analysis of Permanent Magnet Synchronous Motor. 27th International Conference on Electrical Machines and Systems (ICEMS)

gave a talk on 'Pushing Creativity Further in Electrical Machine Design Using Topology Optimization

gave a talk on 'Space-time finite element methods: Foundations and applications' in the seminar 'Numerical Simulations in Technical Sciences

Space-time least-squares FEM for convection diffusion-problems. Conference on Data and Physics-Based Modelling, Simulation and Optimization in Industrial Applications

Incorporating Advanced Material Models into Electric Machine Simulation. Conference on Data and Physics-Based Modelling, Simulation and Optimization in Industrial Applications

Electro-thermal topology optimization of an electric machine. Conference on Data and Physics-Based Modelling, Simulation and Optimization in Industrial Applications

General multi-material topology optimization framework to design innovative electrical machine. Conference on Data and Physics-Based Modelling, Simulation and Optimization in Industrial Applications

On Domain Decomposition for Electromagnetic Problems in 3D. ICCE 2024

Co-authors: Bernard Kapidani, Melina Merkel and Sebastian Schöps

CCE 2024. Darmstadt, Germany. September 30 – October 2, 2024

Wetting simulation of the porous structure of a heat pipe using an eXtended Discontinuous Galerkin Method and a Parameterized Level-Set

Cell agglomeration for cut cells in eXtended discontinuous Galerkin Methods

Space-time least-squares FEM for convection diffusion-problems. Workshop on Fast Boundary Element Methods and Space-Time Discretization Methods

Finite element geometric calculus for elliptic problems. Workshop on Fast Boundary Element Methods and Space-Time Discretization Methods

3D-ACA accelerated time domain boundary element method: FMM and H-matrix based approaches. Workshop on Fast Boundary Element Methods in Industrial Applications

Multirate Magnetothermal Coupling with Time Adaptive Waveform Relaxation. preCICE Workshop

Robust shape optimization. Group Seminar: Computational Methods for PDEs

Nonlinear Schur Complements for Parallelized Simulation of Electric Machines

Gaussian processes and multi-fidelity modelling for electric machines

Thermal Finite-Element Model of an Electric Machine Cooled by a Spray

Co-Simulation Techniques for Field-Circuit Coupled Problems. Poster

Space-time least-squares finite element methods

Domain Decomposition for Rotating Electrical Machines in Space-Time

A unified finite element approach for PDE constrained optimal control problems

Space-time FEM for distributed optimal control problems subject to the wave equation with state or control constraints

Topology optimization of a complete reluctance machine with no initial information on its geometry

Spline-Based Rotor and Stator Optimization of a Permanent Magnet Synchronous Motor

Thermal Model Calibration of a Squirrel-Cage Induction Machine

Continuation methods for higher-order density-based topology optimization

Combined topology-parameter multi-material optimization by the topological derivative

IFIP TC-7 “System Modeling and Optimization” conference. Hamburg. August 12-16, 2024

3D-ACA for the time domain boundary element method: Comparison of FMM and H-matrix based approaches

Robust Optimization of Electric Machines: A Gradient-Based Approach for Parameter and Shape with Isogeometric Analysis

Isogeometric Analysis for 2D Magnetostatic Computations with Multi-level Bézier Extraction for Local Refinement

Data-Driven Multiscale Simulations of Sm-Co Permanent Magnets

Cell agglomeration for cut cells in eXtended discontinuous Galerkin Methods

Simulation of the liquid-vapor interface within pores of a wick structure in a heat pipe

Wetting simulation of the porous structure of a heat pipe using an eXtended Discontinuous Galerkin Method and a Parameterized Level-Set

Time Parallelization of Field-Circuit Coupled Simulations with Micro-Macro Parareal

Comparison of integration methods for trimmed elements

Isogeometric Analysis for 2D Magnetostatic Computations with Multi-level Bézier Extraction for Local Refinement

Cell agglomeration for cut cells in eXtended discontinuous Galerkin Methods

On Dual-Primal Tearing and Interconnecting for 3D Magnetostatics

On Tree-Cotree and Parallel Methods for Electromagnetic Simulations in 3D

https://citmaga.gal/en/w/on-tree-cotree-and-parallel-methods-for-electromagnetic-simulations-in-3d

Numerical analysis of an energy-based magnetic hysteresis model

Stability, asymptotic analysis, and discretization error estimates for some nonlinear systems of differential equations

Continuation methods for higher-order density-based topology optimization

PDE-Constrained Design Optimization of Electric Machines under Uncertainty Using Isogeometric Analysis. LANS Seminar

https://www.anl.gov/event/pdeconstrained-design-optimization-of-electric-machines-under-uncertainty-using-isogeometric

Homotopy methods for higher order shape optimization. Joint IPMI-CMPDE Mini-Workshop on Shape Optimization and Inverse Problems

Topology optimization of a permanent magnet synchronous machine by the topological derivative. Joint IPMI-CMPDE Mini-Workshop on Shape Optimization and Inverse Problems

Shape optimization of rotating electric machines. Mini-Workshop on “Modelling and Simulation in Electromagnetics”

Space-Time FEM for Electromagnetism including Hysteresis. Mini-Workshop on “Modelling and Simulation in Electromagnetics”

Space-time finite element methods in thermodynamics. Mini-Workshop on “Modelling and Simulation in Electromagnetics”

Space-time least-squares finite element methods. Mini-Workshop on “Modelling and Simulation in Electromagnetics”

Stable and Adaptive Space-Time Finite Element Methods for the Wave Equation. Mini-Workshop on “Modelling and Simulation in Electromagnetics”

Convergence of iterative solvers in nonlinear magnetostatics.

Duality-based error estimation for nonlinear magnetostatics

Robust PDE Constrained Design Optimization of Electrical Machines with Isogeometric Analysis

Calibration of a Squirrel-Cage Induction Machine Thermal Model

On the convergence of iterative solvers for nonlinear magnetostatics

A scalar potential approach for magnetostatics avoiding the coenergy

Multi-material topology optimization of an electric machine considering demagnetization

On the regularized H-field approach for nonlinear magnetostatics

Tracing pareto-optimal points in multi-objective shape optimization applied to electric machines

Toward multi-material topology optimization of doubly-excited electrical machines using recursive material interpolation

Robust Design Optimization of Electric Machines with Isogeometric Analysis

Fourier Transform Based Surrogate Modelling for High-dimensional Electric Machine Key Performance Indicators. Conference Siam UQ

Parallelization in Space and Time for Parabolic Problems in 3-D

Efficient solution of distributed parabolic optimal control problems

2023

Numerical approximation of topological derivatives and some applications. New perspective on Shape and Topology Optimization Workshop

Adaptive finite element methods for distributed optimal control problems with state or control constraints. Workshop on Computational Mathematics at the Institute of Applied Mathematics

A factorization-driven solver for the heat equation in state based optimal control

Adaptive least-squares space-time finite element methods

Parallel solvers for the space-time FEM of 2D-eddy current problems

On a modified Hilbert transformation, the discrete inf-sup condition, and error estimates

3D Modeling on NGsolve. Topology Optimization for electromagnetic systems

An adaptive finite element method for the simulation of electric machines.

Structural Optimization of an Axial Rotatory Magnet Assembly for Magnetocaloric Cooling.

Least Squares Galerkin Formulation for Magnetic Differential Equations

On the influence of structural and magnetic parameters on the magnetic properties of Fe-Si systems

Multivariate sensitivity adaptive polynomial chaos expansion.

Regularization and discretization error estimates for Dirichlet control problems.

On some properties of the modified Hilbert transformation.

Adaptive least-squares space-time finite element methods

Space-time finite element methods for thermo-elastodynamics

Gradient-based Robust Optimization of Electrical Machines with IGA. EUCCO

Space-time shape optimization of rotating electric machines

Robust Design Optimization of Electrical Machines with IGA

Comparison of a quasi Newton method using Broyden's update formula and an adjoint method for determining local magnetic material properties of electrical steel sheets

Topology Optimization of a Magnetocaloric Refrigeration System with Isogeometric Analysis. Topology Optimization and Isogeometric Workshop

Immersed Boundary-Conformal Method: An isogeometric discretization for topology optimization? Topology Optimization and Isogeometric Workshop

The Scalar Potential Approach in Nonlinear Magnetostatics

Adaptive least-squares space-time finite element methods

Thermo-Elastic Coupling with Finite Elements in Space-Time: Modeling and Simulation for Multiphysics Systems.

On unified frameworks for optimal control and least squares problems.

Unconditionally Stable Space-Time (Adaptive) Finite Element Methods for the Wave Equation

Determination of (non-)linear local Material Properties using an Inverse Scheme

How to gauge magnetostatics to facilitate domain decomposition methods.

Shape Optimization of a Magnetocaloric Cooling System with Isogeometric Finite Elements

Multi-material topology optimization of a rotating electric machine with mechanical constraints

Combined Shape and parameter Optimization of Electrical Machines with IGA

Topology optimization of a rotating electric machine by the topological derivative

Space-time shape optimization of rotating electric machines.

Partial Integration based Regularization in Fast Multipole Boundary Element Method

Adaptive time stepping for generalized Convolution Quadrature

Realizations of the Generalized Adaptive Cross Approximation in an Acoustic Time Domain Boundary Element Method

Multi-level Bézier extraction of truncated hierarchical B-splines for isogeometric analysis

Combined Parameter and Shape Optimization of an Electric Machine with Isogeometric Analysis

Modelling simulation and optimization in electrical engineering (MSOEE) (et. al.)

Determination of Local Magnetic Material Properties using an Inverse Scheme

Identification of Parameters to correctly adapt Energy-Based Hysteresis Models regarding Rotational Losses

Design Optimization of a Sensor-Actuator System to Determine Local Variations of Magnetic Permeability

Tree-Cotree Gauging for Magnetostatics with Dirichlet Boundary

Combined Shape and Parameter Optimization of an Electric Motor with Isogeometric Analysis

Regularization and finite element error estimates for constrained optimal control problems with energy regularization

Analysis and numerical approximation of heat transfer via interfaces and radiation

Multi-material topology optimization of electric machines

Space-time finite and boundary element methods for the wave equation

3D-ACA for time domain boundary element method. Mini-Workshop for waves

Mathematical challenges in electric machine simulation

Energy-stable stator-rotor coupling and consistent torque computation by harmonic mortaring

Efficient 3D finite element scheme for solving electromagnetic field problems considering vector hysteresis

Topology optimization of a rotating electric machine by the topological derivative

Surrogate modeling, uncertainty quantification, and sensitivity analysis for thermal circuit models of electric machines

Space-time methods for parabolic quasi-linear time-periodic evolution problems

Tearing and Interconnecting Approach for H(curl)

Space-time finite element methods for electric machines

Computational methods for electric machines

Numerische Mathematik. GPS Satellitennavigation

2022

Space-Time Simulation and Design Optimization of Electric Machines

Space-time design optimization of electric machines

Space-Time Simulation and Design Optimization of Electric Machines

An Efficient and Robust Quasi-Newton Method for 3D Magnetic Vector Hysteresis using the Reduced Magnetic Scalar Potential