I have a simple model to check as a 3d volumetric structure. Its 2 side by side I beams, joined with plate elements on the flanges and stiffened on the webs too.
I mesh it using a pretty coarse mesh, it takes 25 minutes to mesh. When I run the calculation I get an error saying mesh error (ie not refined enough). When I change the mesh parameters, it then takes 2,5 hours to mesh. Then I get the same mesh error anyway. Rafal has already answered this for me here: http://forums.autodesk.com/t5/Autodesk-Robot-Struc
After I define the solid, I apply a load to one side. If I click on this side in the object inspector, it highlights it red, so I know I am selecting the right side. But when I apply planar load to that side, it applies the load to a completely different one. I have previously reported the error - http://forums.autodesk.com/t5/Autodesk-Robot-Struc
Sorry to bring up 2 old issues at once, but I really had a bad day in Robot today.
I love Robot for many reasons, but I can't get why the volumetric solids module is even included while it's so clunky. Strand 7 really makes Robot look silly today.
Solved! Go to Solution.
In fact Robot is \ was not designed to handle complex solids. It was intended to allow users to model large foundations, with rather simple geometry, rather extruded \ revolved.
For something more complex we recommend using ACIS modeling. Meshing times - it depends but nothing to compare with ANSYS.
From curiosity - please send us model.