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arxiv: 2606.16653 · v2 · pith:BN5NSXQXnew · submitted 2026-06-15 · 💻 cs.CE · cs.NA· math.NA

The CREATOR Project: Towards a Computational Electric Machine Laboratory

Sebastian Sch\"ops , Annette Muetze , Herbert De Gersem , Herbert Egger , Manfred Kaltenbacher , Markus Lazanowski This is my paper

Pith reviewed 2026-06-27 02:26 UTC · model grok-4.3

classification 💻 cs.CE cs.NAmath.NA
keywords electric machinessimulation-driven designmultiphysicscollaborative researchoptimisationmaterials sciencefluid dynamicscomputational laboratory
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The pith

The CREATOR project builds integrated multiphysics methodologies to replace sequential workflows in electric machine design.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper presents the CREATOR Collaborative Research Centre as a response to growing requirements for higher efficiency, power density and sustainability in electric machines. It states that these demands cannot be met by adding multiphysical effects, advanced materials and complex geometries one after another in traditional sequential design steps. Instead the project pools electrical engineering, applied mathematics, fluid dynamics and materials science inside one eight-year funded effort to create unified modelling, simulation and optimisation methods. The article summarises the overall vision, reports key results obtained in the first funding period from 2022 to 2026, and describes current steps toward a computational electric machine laboratory.

Core claim

CREATOR establishes a new paradigm for simulation-driven electric-machine design by embedding multiphysical effects, advanced materials and complex geometries into a single set of integrated modelling, simulation and optimisation methodologies developed through combined expertise from electrical engineering, applied mathematics, fluid dynamics and materials science.

What carries the argument

The Collaborative Research Centre TRR 361/F90 CREATOR, which merges the four listed disciplines into one project structure to produce the integrated methodologies.

If this is right

  • Design cycles will incorporate thermal, mechanical and electromagnetic effects simultaneously rather than sequentially.
  • Optimisation routines will treat material properties and fluid flow as active design variables from the outset.
  • A working computational electric machine laboratory will become available for rapid virtual prototyping by the end of the funding period.
  • Early results from 2022-2026 already supply building blocks for the unified simulation framework.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same integrated workflow structure could be tested on other complex electromechanical systems such as generators or actuators.
  • If successful, the laboratory could shorten the time from concept to prototype by allowing all physical constraints to be evaluated in one model.
  • Long-term maintenance of the shared software and data platform will determine whether the methodologies remain usable after the project ends.

Load-bearing premise

Combining expertise from the four disciplines inside one project will generate usable integrated methodologies that outperform existing sequential design processes.

What would settle it

Demonstration that machine designs produced by the new integrated methods show no measurable gains in efficiency, power density or sustainability over designs obtained from conventional sequential workflows.

Figures

Figures reproduced from arXiv: 2606.16653 by Annette Muetze, Herbert De Gersem, Herbert Egger, Manfred Kaltenbacher, Markus Lazanowski, Sebastian Sch\"ops.

Figure 1
Figure 1. Figure 1: Global market share of electric vehicles within passenger car sales [5]. [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Two machine demonstrators from TU Graz [6]. [PITH_FULL_IMAGE:figures/full_fig_p002_2.png] view at source ↗
Figure 4
Figure 4. Figure 4: Three-dimensional volumetric spline model with resolved windings. [PITH_FULL_IMAGE:figures/full_fig_p003_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Rotational hysteresis losses, see for details [28]. [PITH_FULL_IMAGE:figures/full_fig_p004_5.png] view at source ↗
Figure 7
Figure 7. Figure 7: Multiphysics simulation results of retrofitted spray cooling as shown in [PITH_FULL_IMAGE:figures/full_fig_p004_7.png] view at source ↗
Figure 8
Figure 8. Figure 8: Comparison of cooling concepts: water-jacket vs. direct oil cooling. [PITH_FULL_IMAGE:figures/full_fig_p005_8.png] view at source ↗
Figure 9
Figure 9. Figure 9: Simulation of hysteresis loops for the TUG PMSM demonstrator. [PITH_FULL_IMAGE:figures/full_fig_p007_9.png] view at source ↗
Figure 12
Figure 12. Figure 12: Cooling concepts visualised following Gronwald et al. [43] (with per [PITH_FULL_IMAGE:figures/full_fig_p008_12.png] view at source ↗
Figure 11
Figure 11. Figure 11: Radial temperature distribution resulting from rotor cooling via multiple [PITH_FULL_IMAGE:figures/full_fig_p008_11.png] view at source ↗
Figure 13
Figure 13. Figure 13: Optimisation results of different approaches for the JMAG PMSM demonstrator, see [44]. [PITH_FULL_IMAGE:figures/full_fig_p009_13.png] view at source ↗
Figure 14
Figure 14. Figure 14: Conventional machine design (a), electromagnetic torque [PITH_FULL_IMAGE:figures/full_fig_p010_14.png] view at source ↗
Figure 15
Figure 15. Figure 15: Evaluation of the designs in Figure 14 in terms of torque and constraints [PITH_FULL_IMAGE:figures/full_fig_p010_15.png] view at source ↗
read the original abstract

The Collaborative Research Centre TRR 361/F90 CREATOR (2022-2030) aims at establishing a new paradigm for the simulation-driven design of electric machines. Increasing demands on efficiency, power density and sustainability require the integration of multiphysical effects, advanced materials and complex geometries into the design process. Traditional sequential workflows are no longer sufficient to address these challenges. CREATOR therefore combines expertise from electrical engineering, applied mathematics, fluid dynamics and materials science to establish integrated modelling, simulation and optimisation methodologies in a single large-scale project funded by the German and Austrian national funding agencies. This article provides an overview of the research vision, key achievements from the first funding period (2022-2026) and current developments towards a computational electric machine laboratory.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

0 major / 2 minor

Summary. The manuscript is an overview of the CREATOR Collaborative Research Centre (TRR 361/F90, 2022-2030), which seeks to establish integrated multiphysical modeling, simulation, and optimization methodologies for electric machine design. It argues that traditional sequential workflows are insufficient for demands on efficiency, power density, and sustainability, and describes the project's multi-disciplinary structure (electrical engineering, applied mathematics, fluid dynamics, materials science), key achievements from the first funding period (2022-2026), and progress toward a computational electric machine laboratory.

Significance. If the integrated methodologies developed by the project are validated and adopted, the work could meaningfully advance electric machine design by enabling holistic optimization across physics and materials. The manuscript itself functions as a project description rather than a vehicle for new derivations or empirical results; its value lies in documenting the organizational vision and early activities of a large-scale funded effort.

minor comments (2)
  1. [Abstract] The abstract and overview sections reference 'key achievements from the first funding period' without naming specific sub-project outputs, publications, or quantitative benchmarks; adding one or two concrete examples with citations would improve reader orientation.
  2. The manuscript would benefit from a short table or diagram summarizing the sub-projects, their disciplinary focus, and interdependencies to make the integration claim more tangible.

Simulated Author's Rebuttal

0 responses · 0 unresolved

We thank the referee for the positive review and the recommendation to accept. The provided summary correctly captures the manuscript's purpose as an overview of the CREATOR project's vision, structure, and first-period achievements.

Circularity Check

0 steps flagged

No significant circularity: project overview with no derivations

full rationale

The paper is a high-level project description of the CREATOR Collaborative Research Centre, outlining research vision, organizational structure, and first-period activities across disciplines. No equations, fitted parameters, predictions, or derivation chains appear in the text. The motivating hypothesis that integrated multi-disciplinary modeling will outperform sequential workflows is stated as the project's premise rather than derived from or reduced to any internal inputs, self-citations, or ansatzes. All claims remain at the level of stated goals without self-referential reduction.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Abstract-only; no equations, parameters, or new entities are introduced.

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Reference graph

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