nummrg,all produces warning 1

[epd20]

Hi,

when trying to merge more different "blocks" created with solid generation procedure, the command

 NUMMRG,ALL,1e-9

produces the following warning:

After NUMMRG,ALL node...is associated with more than one solid entity...

I know it's just a warning and not an error ;-)
but what does this means
Will my model behave like a single entity when I'll apply forces on it?

PS I've tried a workaround with the VGLUE command, but in this way I had errors on the meshings...

Thanks for the help,

Emile

 

[Drej]

It depends on your geometry. It means that node is attached to numerous geometries.

You need to check where the node is located in your model. Then you can build the model outwards from it. Try the following:

1) select the node using nsel,s,node,,<number>
2) use KSLN to select keypoints attached to the node - check the kypoints associated
3) use LSLK check the lines
4) use ASLL check the areas
5) etc.

This will tell you exactly how your modified (after the nummrg command) model is constructed.


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[epd20]

Hi Drej,
thanks for the reply.

But: I can't understand what you're telling me. What should I do once that I know the results of these commands? And what do you mean by "check"? The commands you wrote down gave as results e.g. one keypoint, 3 lines etc. but what's the purpose?
My main question is: can I treat my model like a single device, applying a current trough it, or not? If not, what have I to modify?

Excuse me if these are silly questions but I am quite a newbie in ANSYS programming.
(Still, I'm ready to learn )
Thanks again

Emile

 

[Drej]

My main question is: can I treat my model like a single device, applying a current trough it, or not? If not, what have I to modify?

Your question is not very descriptive and doesn't contain enough information. How can I -- or anyone -- possibly know whether your model is a "single device" without seeing it? You haven't even described the geometry. A way to check is to look at your geometry and see whether the keypoints are merged. You can plot the kp numbers, and if you get more than one number at each point they're not merged. If they're not merged it probably means you will have a discontinuity in your mesh. My guess is that if you've used nummrg,all then this will not be the case.


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[meshparts]

Hi!

I had the same problem and I think... that is no problem. When 2 noded belonging to deferent geometries are merged, one node will be deleted and the other one will belong to both geometries. So it should be no problem...

Regards
Alex

 

[epd20]

Hi and thanks everybody,
Drej: the structure seems meshed, and no problem was encountered.
Alex: thanks also for the moral support

Thanks guys

Emile

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