Reading Current Density off a Model

[JonLueke]

Hey all,

I am modeling a simple RF MEMS cantelever switch on Ansys, and I would like to be able to extract the current density off the model. Anyone have any ideas how to go about this?

Thanks.
Jonathan Lueke

 

[JonLueke]

Oh yeah.. just to clarify, I want the current density for the whole switch, not just a single element/node combination.

Thanks.

Jonathan Lueke

 

[ikerlanjge]

Hi Jonathan.

You have to select the elements of a section of the conductor. Then create a table with the current densities (ETABLE,table_name,JS,SUM). After that, add all the values in the table (SSUM). Finally get the sum into a variable (*GET,parameter_name,SSUM,0,ITEM,table_name). Now you have the total current density in a variable named parameter_name.

Best regards.
Jorge

 

[ikerlanjge]

Hi again Jonathan.

The previous process works if all the elements of the section have the same area.

Best regards,
Jorge

 

[ikerlanjge]

A better solution:

-Select the cross-section area
-Select the nodes attached to this area
-List results -> Reaction solu...
-Choose Elec currnt AMPS
-At the end of the list you'll find the total current
-And finally you konw how to calculate the current density

 

[JonLueke]

Thanks a bunch.. worked like a charm

Jonathan Lueke