This paper aims to develop and experimentally validate a three-dimensional (3D) multiphysics model for predicting the transient magneto-thermal behavior of an axial-flux permanent-magnet (PM) braking system.
A coupled 3D finite element model is proposed, combining electromagnetic and transient thermal analyses to account for eddy-current losses, temperature rise and torque reduction. The model includes full geometry and armature reaction effects. A prototype is designed and experimentally tested to validate the approach.
The proposed coupled 3D magneto-thermal FEM model shows very good agreement with experimental results, accurately predicting both the transient magnetic field distribution and the temperature-dependent reduction in braking torque. The results confirm the capability of the model to reliably reproduce the real operating behavior of axial-flux PM braking systems.
The proposed approach provides an efficient tool for the design and optimization of PM braking systems, reducing development time while improving performance prediction.
The contribution lies in a coupled 3D magneto-thermal framework experimentally validated on a dedicated prototype and integrating full 3D geometry, armature reaction and temperature-dependent effects within a unified multiphysics model.
