Ansys Maxwell Demagnetization Apr 2026

1. Introduction 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 second quadrant of its hysteresis loop, below the "knee" of the intrinsic demagnetization curve ($H_c$, $B_r$).

oProject = oDesktop.GetActiveProject() oDesign = oProject.SetActiveDesign("Maxwell2DDesign1") for angle in range(0, 180, 15): oDesign.ChangeProperty([ "NAME:AllTabs", ["NAME:Parameters", ["NAME:PropServers", "ParametricSetup1"], ["NAME:ChangedProps", ["NAME:current_angle", "Value:=", str(angle)]] ]]) oDesign.AnalyzeAll() ansys maxwell demagnetization