Magnetostatic analysis is used to design or analyze a variety of devices such as solenoids, electric motors, magnetic shields, permanent magnets, magnetic disk drives, etc. Generally, the quantities of interest in magnetostatic analysis are magnetic flux density, field intensity, force, torque, inductance, and flux linkage.
QuickField can perform linear and nonlinear magnetostatic analysis for 2D and rotationally symmetric models. The program is based on a vector potential formulation. The following options are available for magnetostatic analysis:
Material properties: air, orthotropic materials with constant permeability, ferromagnets, current carrying conductors, and permanent magnets. B-H curves for ferromagnets can be defined in a Curve Editor.
Loading sources: current density, uniform external field, and permanent magnets.
Boundary conditions: Prescribed potential values (Dirichlet condition), prescribed values for tangential flux density (Neumann condition), constant potential constraint for zero normal flux conditions on the surface of superconductor.
Postprocessing results: magnetic potential, flux density, field intensity, forces, torques, magnetic energy, flux linkage, self and mutual inductances.
Special features: A postprocessing calculator is available for evaluating user-defined integrals on given curves and surfaces. The magnetic forces can be used for stress analysis on any existing part (magneto-structural coupling). The magnetic state of the media calculated using the demagnetization curves of all the involved materials can be remembered for future use. In particular, it allows for calculation of self- and mutual differential inductances of multi-coil systems.
Magnetostatic formulations in Theoretical Description