Computational Methods for Electric Machines
Advanced techniques for design optimization in engineering applications
Computational geometry optimization methods have become increasingly important for the design of structures and devices across a wide range of engineering disciplines — for example, in the design of electric machines, which play a crucial role in the energy transition. Common techniques include parametric and free-form shape optimization, (de-)homogenization, and topology optimization using density-based or level-set-based design representations. In many engineering applications, the optimal distribution of multiple materials, the integration of multi-physics phenomena, and the consideration of manufacturability constraints are critical factors. To address these challenges, optimization algorithms must be broadly applicable and computationally efficient. The aim of this workshop is to bring together experts working on both the theoretical foundations and practical applications of advanced design optimization methods.
Invited Speakers
- Niels Aage (Technical University of Denmark)
- Grégoire Allaire (Ecole Polytechnique Paris)
- Samuel Amstutz (Avignon Université)
- Martin Berggren (University of Umeå)
- Sebastian Blauth (Fraunhofer ITWM)
- Johannes Brandstetter (JKU Linz)
- Charles Dapogny (Université Grenoble Alpes)
- Tom De Weer (KU Leuven)
- Stefanie Elgeti (TU Wien)
- Alex Ferrer (CIMNE and Universitat Politècnica de Catatlunya, Barcelona)
- Hajime Igarashi (Hokkaido University)
- H. Alicia Kim (UC San Diego)
- Nepomuk Krenn (RICAM Linz)
- Antoine Laurain (Universität Duisburg-Essen)
- Boyan Lazarov (Lawrence Livermore National Laboratory)
- Frédéric Messine (Univeristy of Toulouse)
- Abdenbi Mohand-Ousaid (FEMTO-ST Besançon)
- Joseph Morlier (Institut Supérieur de l’Aéronautique et de l’Espace (ISAE Supaero))
- Lise Noël (TU Delft)
- Antonio André Novotny (National Laboratory for Scientific Computing, Petrópolis)
- Ioannis Papadopoulos (WIAS Berlin)
- Claus Pedersen (Dassault Systèmes)
- Kevin Sturm (TU Wien)
- Stefan Ulbrich (TU Darmstadt)
- Eddie Wadbro (Karlstad University)
- Oliver Weeger (TU Darmstadt)
- Sebastian Wolf (Leibniz University Hannover)
- Takayuki Yamada (University of Tokyo)
Program
Monday, 27 October 2025
| Time | Speaker/Title |
|---|---|
| 9:00 | Registration |
| 9:30 | Opening |
| 9:45 |
Hajime Igarashi: Evolutionary Topology Optimization in Computational Electromagnetics
Slides (pdf) *
|
| 10:30 | Coffee/tea break |
| 11:00 |
Nepomuk Krenn: Multiphysical design optimization of an electric machine |
| 11:45 |
Claus Pedersen: Topology and Shape Optimization for Electrical Machines considering Electromagnetic and Structural Properties
Slides (pdf) *
|
| 12:30 | Lunch break |
| 14:00 |
Frédéric Messine: Optimization Methods for Innovative Designs of Electromechanical Actuators |
| 14:45 |
Abdenbi Mohand-Ousaid: Topology optimization of piezoelectric actuators
Slides (pdf) *
|
| 15:30 | Coffee/tea break |
| 16:00 |
Boyan Lazarov: The SiMPL Method for Density-Based Topology Optimization |
| 16:45 |
Sebastian Wolf: Thermodynamic Topology Optimization of thermomechanically actuated devices |
| 17:30 | Reception |
Tuesday, 28 October 2025
| Time | Speaker/Title |
|---|---|
| 9:00 |
Joseph Morlier: Embedding Sustainability in Design Optimization: Which Mathematical Recipes?
Slides (pdf) *
|
| 9:45 |
Stefanie Elgeti: Mixed-initiative engineering design: towards a more-than-human design process
Slides (pdf) *
|
| 10:30 | Coffee/tea break |
| 11:00 |
Oliver Weeger: Inverse materials design with parameterized physics-augmented neural networks
Slides (pdf) *
|
| 11:45 |
Johannes Brandstetter: Neural networks for representing and optimizing geometry |
| 12:30 | Lunch break |
| 13:55–16:30 | Excursion: Tour voestalpine with plant tour |
Wednesday, 29 October 2025
| Time | Speaker/Title |
|---|---|
| 9:00 |
Kevin Sturm: The first and second order topological state derivative with applications to Netwon-type algorithms and a Dirichlet control problem |
| 9:45 |
Antonio André Novotny: On the design of epsilon-near-zero electromagnetic metamaterials
Slides (pdf) *
|
| 10:30 | Coffee/tea break |
| 11:00 |
Alex Ferrer: Additive manufacturing constraints in topology optimization
Slides (pptx) *
|
| 11:45 |
Takayuki Yamada: Geometric constraints in topology optimization by additional PDE models |
| 12:30 | Lunch break |
| 14:00 |
Martin Berggren: Topology optimization of a true sonic black hole
Slides (pdf) *
|
| 14:45 | Posters |
| 15:30 | Coffee/tea break |
| 16:00 |
Niels Aage: Internal Boundary Conditions in Structural Optimization: Challenges and Opportunities
Slides (pdf) *
|
| 16:45 |
Lise Noël: Immersed Level Set-based Topology Optimization for Flow Problems |
| 18:30 | Conference dinner - Josef |
Thursday, 30 October 2025
| Time | Speaker/Title |
|---|---|
| 9:45 |
Samuel Amstutz: Geometric optimization of a reflector |
| 10:30 | Coffee/tea break |
| 11:00 |
Grégoire Allaire: Shape and topology optimization of lithium-ion batteries
Slides (pdf) *
|
| 11:45 |
H. Alicia Kim: Large-scale Multiphysics Topology Optimization
Slides (pdf) *
|
| 12:30 | Lunch break |
| 14:00 |
Eddie Wadbro: Design optimization for Newtonian cooling heat sink |
| 14:45 | Posters |
| 15:30 | Coffee/tea break |
| 16:00 |
Ioannis Papadopoulos: Computing multiple solutions of topology optimization problems
Slides (pdf) *
|
| 16:45 |
Tom De Weer: Continuation strategies to mitigate convergence to low-performing local optima in dynamic topology optimization
Slides (pdf) *
|
Friday, 31 October 2025
| Time | Speaker/Title |
|---|---|
| 9:00 |
Stefan Ulbrich: Robust Topology Optimization of Electric Machines using Topological Derivatives |
| 9:45 |
Charles Dapogny: Robust, and distributionally robust shape and topology optimization
Slides (pdf) *
|
| 10:30 | Coffee/tea break |
| 11:00 |
Antoine Laurain: Optimal control of volume-preserving mean curvature flow
Slides (pdf) *
|
| 11:45 | Closing |
Poster presentations
-
Zahoor Ahmad (Tallinn University of Technology)
Design Approaches for Additively Manufactured Coils in Electrical Machines -
Josué Daniel Díaz Avalos (Universität Duisburg-Essen)
Polyhedral Shape Optimization and Applications
Poster -
Yusuf T. Elbadry (Technical University of Darmstadt)
Shape and Parameter Optimization of Magnetocaloric Cooling Device with Isogeometric Analysis -
Lukas Freinberger (TU Wien,)
Shape Optimization Using Neural Networks for Implicit Geometry Representation
Poster -
Michael Gfrerer (Graz University of Technology)
The impact of the discretization on shape and topological sensitivities
Poster -
Zakaria Houta (Laboratoire GeePs)
Shape and Topology Optimization in 3D Nonlinear Magnetostatics -
Shahid Hussain (Tallinn University of Technology)
Density Based Topology Optimization of Permanent Magnet Electrical Machine -
Theodor Komann (TU Darmstadt)
Robust Topology Optimization of Electric Machines using Topological Derivatives -
Pan Lu (Umeå University)
Topology Optimization of Metallic Antennas and Decoupling Networks -
Jorge Morvan Marotte Luz Filho (National Laboratory for Scientific Computing)
Topological derivative-based synthesis of 3D elastic microstructures -
Guillaume Pierron (École Centrale de Lyon - IFP Énergies Nouvelles)
Optimization Under Uncertainties for Multi-Fidelity Black-Box Simulators
Poster -
Yurika Sayo (The University of Tokyo)
Mathematical model for topology optimization of link mechanisms -
Jason Seeger (TU Darmstadt,)
Robust Shape and Parameter Optimization of Electric Machines with IGA -
Mario Setta (Karlstad University)
Minimum feature size control for binary topology optimization
Poster -
Dries Toebat (KU Leuven)
Local constraints in Topology Optimization: A Simultaneous Analysis and Design (SAND) approach -
Jose Torres (Universitat Politècnica de Catalunya)
Topological derivative in constrained optimization problems via the null space algorithm
Poster -
Michael Winkler (RICAM)
Continuation methods for higher-order topology optimization
Poster
Book of Abstracts
Organizers
- Théodore Cherrière (CentraleSupélec Paris)
- Peter Gangl (RICAM)
Social events
Excursion: Tour voestalpine with plant tour
Date: Tuesday, October 28, 13:55 – 16:30
When you have registered for the excursion on Tuesday, October 28 here some information.
We will go by bus to VOEST and go on the plant tour which takes 1,5 hours.
Meeting point is at 13:55 in front of the Science Park underground parking area.
See PDF file.
Start of the tour is at 14:30. We will be back at around 16:30.
Dinner at “Josef”
Date: Wednesday, October 29, 18:30
Location: Josef, Landstraße 49, 4020 Linz
Public transport: Tram 1 or 2 to stop „Mozartkreuzung“.
