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Hello McGee, David and All:
It seems great idea. I have the experence in calculating hysteresis losses in electric
machine. The way I used is same as you, a time stepping approach. But I still
have problem in how to get a satisfying and correct result by interpolating
in each group of data. Can you recommand some references, I hardly to
find this kind of source here. Thank you.
Si hang
----- Original Message -----
Sent: Tuesday, April 10, 2001 10:20
PM
Subject: RE: [femm] Hysteresis
David
Using the
approximate approach for modeling hysteresis that you have implemented in your
model has worked for me in the past as a "history matching" parameter.
As a predictive tool an approach using Preisach's Theory might be
useful. I would like to take a stab at implementing hysteresis into your
code. It would be tremendously beneficial to me (hysteresis losses in
steel pipes) and I am sure others might find it useful. Have you looked
at Preisach's Theory. I know several researchers have implemented
this approach into FEM code, however I do not know the success of this
approach. I used a time stepping approach around the BH loop as H varied
with time; in FDTD this was a very direct approach. Any
suggestions.
Bruce
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