Path: SC/MagneticControl
% Right hand side for a dynamical model of magnetic hysteresis. Unlike Flatley we use a tanh function. Tellinen gives the slope fractions for the increasing and decreasing curves. Since version 10. -------------------------------------------------------------------------- Form: bDot = MagneticHysteresis( b, t, h, hDot, d ) -------------------------------------------------------------------------- ------ Inputs ------ b (1,1) Magnetic flux density (T) t (1,1) Time - unused h (1,1) Magnetic field (A/m) hDot (1,1) Magnetic field time derivative (A/m/s) d (1,1) Data structure .bS (1,1) Saturation flux density (T) .hC (1,1) Coercive force (A/m) .bR (1,1) Remnance (T) ------- Outputs ------- bDot (1,1) Derivative of the flux density. -------------------------------------------------------------------------- Reference: Flatley, T. W. and Henretty, D. A., "A Magnetic Hysteresis Model," N95-27081. Kumar R., Mazanek, D. and Heck, M., "Simulation and Shuttle Hitchhiker Validation of Passive Satellite Aerostabilization," Journal of Spacecraft and Rockets, Vol. 32, No. 5, September-October 1995. J. Tellinen, "A Simple Scalar Model for Magnetic Hysteresis", IEEE Transactions on Magnetics, vol. 24, no. 4, pp.2200-2206, July 1998. --------------------------------------------------------------------------
Common: Graphics/Plot2D Common: Graphics/TimeLabl Math: Integration/RK4 SC: MagneticControl/BFromHHysteresis
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