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... but the above tool cannot create (at least easily) hexahedral meshes. I'd like to have this capability.

Already found one open-source meshing package with nastran export capability: http://www.geuz.org/gmsh/

Hi All, I'm analyzing structural problems with comsol multiphysics, which for my purposes does not have adequate mesh generation capabilities. I noticed that I can import an externally created mesh in the NASTRAN (.nas) file format. My questions are: 1) Do you know of some free (open source)...

Hi all, could not find in the APDL documentation, if it is possible to somehow check if a file exists or not. Could then do branching based on this information. Any hints? I'm using Ansys 9.0. Thanks.

Hi all, Is there any way to change ansys behaviour with an unknown parameter value? I would like the program to stop batch processing when an unknown parameter value is encountered - now it does not do that, which may lead to hard-to-find errors. An example in the version I use (9.2) tmpvar =...

Thank you very much!!

Hi all, I recently found an error in an ansys model of mine: parts which were not glued to each other. This seems to happen quite easily and is not so straightforward to find. Do you have any tricks to find unglued volumes (which touch each other)? Any scripts? In principle, one should be able...

Hi all, I have noticed that the bottleneck in a model I use is the VGLUE command. Any hints for making it any faster? I have to glue a 2D array of "tiles" together. When the amount of brick volumes gets near 1000 it takes many minutes to glue them together. The solution phase of the static...

Thanks a lot, this was exactly the answer I was looking for. SELTOL seems to be an undocumented feature (at least in Ansys 9.2, the version I use). I found it listed on the Ansys Undocumented Features at ansys.net: http://ansys.net/ansys/?mycat=search&mytype=Undocu&mycategory=Selection

I understand that mapped meshing of areas requires that an area is bounded by 4 lines. Is there some automatic way of converting one complex area (=bounded by several lines) to smaller areas, each bounded by smaller number of lines? Thank you for your hints!

Maybe I misused the term layer ... my intention is to select some areas which have a certain z-coordinate and which have been drawn perpendicular to the z-axis. After this selection the area is extruded with the VEXT command. My problem was that the tolerance in the ASEL command was too big...

I'm trying to use the ASEL command to select a layer in my model and I noticed that ASEL tolerance does not work very intuitively in my opinion: Two examples 1)ASEL,S,LOC,Z,3015 -> tolerance = 15.075 2)ASEL,S,LOC,Z,3014.9,3015.1 -> tolerance = 0.2E-8 This goes as stated in the documentation. I...

Thank you for the answer! I also noticed the existence of other similar inline functions when reading through the *GET documentation.

I'm studying an ansys batch file made by someone else and found there a line like this: tmpvar = NODE(0,940,300) What is this NODE? Seems that it could be some kind of 3D-array (related to the nodes), which is accessed by its indices. However, I could not find any specific documentation on...

Hi all, what kinds of experiences do you have when using the excel solver for nonlinear optimization tasks? For me, it seems that it doesn't work very reliably even in the case of quite simple target functions and boundary conditions. Are there more sophisticated solver plugins? Thanks for...

Hi all, I'm looking for software which would help the manipulation of the expressions for the impedance of linear RLC-circuits in symbolic form.The most important feature would be to extract the real and imaginary part of the final analytic expression. The analytic expressions tend to get quite...

I already observed that the stuff is found in the log file - I had just lost it to another directory as i had used the "File -> Change directory" somewhere in between and the log file was not moved to the new place.

Hi all. I'm in the process of learning to write ansys .inp-scripts (I'm using Ansys 9.0). Is there a way to echo the commands given in the GUI to the output window (or somewhere else where they could be found)? An example may clarify my problem: I know that to plot the elements one uses a GUI...