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Eddy currents, non-linearity.
Posted Feb 10, 2011, 7:16 a.m. EST Low-Frequency Electromagnetics Version 3.5a 0 Replies
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First of all English is not my home language, so forgive me for any minor errors.
I´m a beginner user of comsol and I´m trying to simulate the effect of eddy currents in different samples. So, in order to change the electromagnetic characteristcs of these metal, I need to load differents hysteresis curves for them.
My first problem is that in not fully convinced in what type of model to use. No I´m using an 2D axysimetric -> Quasi-static, Magnetic -> Azimuthal Induction Current -> Small Signal Analysis -> Transient Bias. I chose that because this problem in very non-linear and I need a AC current with a frequency of 4kHZ in the azimuthal direction. So is that ok?
Secondly, I think I´m doing something wrong with the hysteresis curves. To add them i created a new material and imported a file with only the positive parts of them.
If you please can check all my model, and the equation I use in those material I created, I will be very aprecciated. And it will help me a LOT.
Thanks!
Ps: I didn´t find how to set the frequency in this analysis, so I need this form you to.
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Hello Joao Vicente Goncalves Rocha
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