2025 Other https://fordatis.fraunhofer.de/handle/fordatis/465
http://dx.doi.org/10.24406/fordatis/422

Inverse Bestimmung der Jiles-Atherton-Parameter durch Optimierung (Differential-Evolution) und Surrogatmodellierung

Thieltges, Sascha (Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP)

IZFP Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren
Files in This Item:
FileDescriptionSizeFormat 
DNN_Jochcharakterisierung.mphCOMSOL model used to generate synthetic data, equivalent to the underlying experimental measurements.152,64 MBCOMSOL Multiphysics Version 6.3Download/Open
Surrogatmodel.mphTrained surrogate model based on the synthetic measurement data.2,8 MBCOMSOL Multiphysics Version 6.3Download/Open
merged_output.txtSynthetic measurement data generated for various JA parameter combinations.97,85 MBTextDownload/Open
F3--f1Hz_App700mV_Jochschluss_Exp.txtUnderlying experimental measurement data (magnetization current curve).9,31 MBTextDownload/Open
func1_load_experiment_data.mMATLAB subroutine: Import of experimental measurement data.507 BMatlab R2019bDownload/Open
F4--f1Hz_App700mV_Jochschluss_Exp.txtUnderlying experimental measurement data (PUC voltage signal).9,61 MBTextDownload/Open
func2_preprocessData.mMATLAB subroutine: Preprocessing of experimental measurement data.1,31 kBMatlab R2019bDownload/Open
func3_runDE.mMATLAB subroutine: Differential evolution optimization.3,08 kBMatlab R2019bDownload/Open
func6_objectiveFunction.mMATLAB subroutine: Objective function for the differential evolution optimization.1,85 kBMatlab R2019bDownload/Open
MAIN.mMATLAB main program.1,57 kBMatlab R2019bDownload/Open

Abstract

The dataset includes a COMSOL model that replicates the experimental setup used for characterizing ferromagnetic hysteresis. Based on this model, synthetic training data were generated and used to create a surrogate model within COMSOL. This surrogate model was integrated into a MATLAB script that also processes experimental measurement data. The script performs an inverse identification of the Jiles–Atherton parameters using a Differential Evolution algorithm. This approach enables a model-based reconstruction of the ferromagnetic hysteresis curve for the investigated material.

Technical Information

COMSOL Multiphysics and MATLAB are required to open and execute the provided files.
Classification
500 Naturwissenschaften und Mathematik
510 Mathematik
530 Physik
538 Magnetismus
600 Technik, Technologie
621 Angewandte Physik
Keywords
Surrogate model
Ferromagnetic Hysteresis
COMSOL Multiphysics
Non-destructive testing
Optimization
Differential-Evolution
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