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Simulating the magnetization of a ferromagnetic material in a coil
Posted 30 giu 2022, 23:04 GMT-4 Electromagnetics, Studies & Solvers, Modeling Workflow 2 Replies
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Good day, I am trying to model a cylindrical piece of Alnico being magnetized in the center of a coil. I have BH-curve data for this material and have manually entered it as a table.
I am trying to simulate the magnetization of the alnico, starting with a remnance of 0 (unmagnetized), as a pulse of current is passed through the coil.
I would ideally like a time-dependant solution which I can use to study how the magnetization in the material changes as the pulse passes through the coil, are there any examples or studies which I can follow along with for this?
So far I have set up the simulation as 2D axisymmetric using the emf module and tried sweeping the current in a stationary solution, though I don't think this is what I actually want as it does not show me the remnance after the current in the coil drops back to 0. Is there another way to simulate this?
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Aleksandr,
you will need to include hysteresis into your model. Time dependent is not possible in mef, you must use mf, which might be sufficient. I think there is a hysteresis example in the application library using the Jiles-Atherton hysteresis model.
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
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Thanks so much Edgar! I will look into that example and see what I can come up with. If I make progress I will post my model here for others to use