[Getdp] Info test-nl.pro

[elettro-g- at tiscali.it]

Hi,
I am an italian Phd student and i want use GetDP for investigate the 
induction motors. I find very interesting the simple you develop 
about 
the steel non linearity. Looking the code, i have some difficulty  to 
understan the formulation involved.
In particular i do'nt understand the "Magsta_a_nl"...i comprise good 
the a formulation in the linear case, but in the non linear case i 
don't understand, in particular, the following espression:

      Galerkin { JacNL[ - dbdh[ {d phi} ] * Dof{d phi} , {d phi} ] ; 
                 In Steel ; Jacobian MyJac ; Integration MyInt ; }

      Galerkin { [ b[ - {d phi} ] , {d phi} ]  ; 
                In Steel ; Jacobian MyJac ; Integration MyInt ; }

What's the meanig of JacNL? What it's role?
Why, in the non linar case, is necessary to add the secon expression?
Mybe I don't Know the right formulation..

Thenks a lot for your time and your work!!
I hope you can help me!
Best
Ing.  Luigi Alberti



		
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