ANSYS Stalling during ASBA

[DanJordy]

Yesterday I modeled a MEMS device with perforations by first creating the area of the device and subtracting the areas of the perforations. Today whenever I run it (by copying/pasting txt into the command line) the program become unresponsive and I have to force the program to quit.
Does anyone know the cause of this problem? It worked fine yesterday.

Dan

 

[meshparts]

Hi Dan,

Copying/pasting text into the command line is not such a good idea, since the execution becomes slow.

The Method /input,filename,txt is better.

Second, see that nothing in the output window is selected. If so deselect it by pressing the return key.

Regards,
Alex

 

[DanJordy]

It's just been taking a long time to subtract all the small areas from the large one (there are a lot of perforations in the device). I think I should just accept that fact.
Does anyone have any advice on meshing the model? The holes (square) are 25 x 25 micrometers, seperated by 35 micrometers. This is in a device that is on the order of 3.5 mm x 2 mm, and is 125 micrometers thick. The default meshtool settings are giving me some trouble, it just doesn't respond (I've even given it a couple days to work through) after I tell it to mesh.

Dan

 

[meshparts]

Hi Dan,

could you give more information about your model?

Is it a rectangular 2D plate? Are the holes equally distant to the edges as to the neighbor holes? If yes, then you could model and mesh just one ore two holes and then do a patern, so that you get the whole plate.

Alex