Demagnetization is a critical failure mode in permanent magnet (PM) machines (motors, generators, actuators). It occurs when external magnetic fields (e.g., armature reaction, high temperature, fault currents) force the operating point of a PM into the of its hysteresis loop, below the "knee" of the intrinsic demagnetization curve ($H_c$, $B_r$).
Ansys Maxwell solves the full Maxwell equations using the Finite Element Method (FEM), predicting exactly where and how much demagnetization occurs. ansys maxwell demagnetization
To get the most out of Ansys Maxwell demagnetization, follow these best practices: Demagnetization is a critical failure mode in permanent
# Export min H in magnet oModule = oDesign.GetModule("FieldCalculator") oModule.CalcOp("Min", "H", "Magnet1") minH = oModule.CalcValue() print(f"Angle angle: Min H = minH") ansys maxwell demagnetization
Demagnetization Modeling in Ansys Maxwell: A Guide to Preventing Component Failure