Electric problem

[jerrylucas]

Hi,

I have a model composed by a coil, a sheet and air.

I am using ANSYS 10 with the preference of Magnetic-Nodal.

The element type used are the following:

ET,1,PLANE13
ET,2,PLANE13
ET,3,PLANE13
KEYOPT,3,1,6

(Element type 1 the air, elemet type 2 the sheet and element type 3 the coil).

Thanks to KEYOPT,3,1,6 I have the possibility to introduce the sinusoidal damped current in all the nodes of the coil by "impressed current".

When is solving, it appears the next error.

"The value of volt at node 4694 is 2.025046E+61. It is greater than the current limit 1.E+25"

How can I resolve this error?

Thanks.

 

[Lirock]

Hi,jerry
In my opinion, you'd better check your model,especially the boundary conditions. Maybe there are some unfit conditions or small mistakes. Some just check it!
In mechanical simulation, when we don't give right boundary conditions, we usually get the same error as yours.So I give the advice.

 

[Stringmaker]

What Liweisc said is right on. I know very little about electromagnetic simulations but it sounds like the sparse solver cannot converge due to unsuitable or more likely lack of boundary conditions. Remember that current is a flow rate so to speak. You will need to specify not only your input current which is sounds like you already have but also your current out as well. You could likely indicate zero voltage on the other side of your conductor for this. Not sure exactly how to solve your problem but I think this will put you on the right path.

Hope this helps,
-Brian