Scenario: IPM traction motor, 3-phase short circuit at 150°C magnet temperature. Result: Maxwell shows a 12% demagnetization volume concentrated at the outer corners of the V-shaped magnet. Torque drops 8% at rated current. The design fails.
Remember: In the battle against demagnetization, the simulation is your shield, and Ansys Maxwell is your sword. ansys maxwell demagnetization
oProject = oDesktop.GetActiveProject() oDesign = oProject.SetActiveDesign("Maxwell2DDesign1") Scenario: IPM traction motor, 3-phase short circuit at
✅ : Use $ prefix in material name to make it project-level (e.g., $N42UH ). ❌ Never use nonlinear B-H for soft materials in transient demag – use hysteresis or linear with BH curve. Scenario: IPM traction motor
Demagnetization Modeling in Ansys Maxwell: A Guide to Preventing Component Failure
Go to Tools > Edit Configured Libraries > Materials . For your PM material (e.g., NdFeB35):