Ridged body motion error is always an constraint issue. Probably not what you wanted to hear, but that is what it is. Hope this narrows down your bug search.
You could create a volume who's cross section is the same shape as the hole you want, and go to operate->booleans->subtract and subtract the volume from the area that you want a hole in.
I want to perform a transient analysis of a structure in ANSYS, but because the mass loads aren't initially settled it is producing unwanted initial movement. Is there a way to do a static analysis then take the nodal displacements of that analysis and transfer them to a dynamic analysis...
The best way I've found to do this is to define your working plane where you want your model to be sliced. Then go to Plotctrls->style->hidden line options. This will bring up a menu where under type of plot you select either section or q-slice (I don't remember which one). Then under cutting...
If you want to apply a pressure to an area face and not the whole thing you have to outline where you want the pressure applied and split the area as suggested by fuzzdoug. Then glue the areas together and you can select your newly created area to apply the pressure. If you want to put a BC on...