large number of segments in panel geometry

[sirkris]

After  calculations, edge of panels are divided in nodes where mesh was generated, so I have after calculations a lot of segmnents in panel geometry definition. I would like to apply line load on slab edge, so I would like to get only one segment on straight slab edge. Even if I delete mesh, panel geometry still have those subsegments.

Is there any way to have panel geometry segments the same as in  beginning stage when I defined contours?

[Artur.Kosakowski]

Please check:

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Edges-A-lot-of-small-pieces/m-p/3379267/

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/editing-slab-contour-geometry/m-p/3223160/

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[sirkris]

Thanks,

That is not simply solution, I expected to get.

I have suggestion for your development team: Can they add automaticaly nodes when contour points are defined?  When user move node,  contour would be automaticaly updated.

Can the array of such nodes be saved in memory, so we can easy get unmodified contour definition without hand made merging? 

Regards,

kris

[Rafal.Gaweda]

Here you are:

macro in message 1 here http://forums.autodesk.com/t5/Autodesk-Robot-Structural/VBA-Excel-macro-for-any-object-geometry-modi...

use it this way:  http://screencast.com/t/VaabWgrf9vZ

[sirkris]

I appreciate your macros, but the question is: why we need to use external macros, and they are not added as a part of Autodesk product ???  With regards, but your macros were written about 2 years ago.

Could you send your macro to your development team?

kris

[Rafal.Gaweda]

You do not need it at all. 

Just use robot : http://screencast.com/t/3m3tw2k75Iw (surprise :-)) 

[sirkris]

This is easy for slab where you have 6 nodes - I have about 50. I need to track which node is needed and  which not .

I do not have slab edges vertical and horizontal - this will take me ages to update it. But it looks that i do not have choice- I give up.

[Rafal.Gaweda]

Going back to your first post: why did you divide panels' edges in so many pieces ?

[Artur.Kosakowski]

You can try to define a 'dummy' beam along the edge you want to apply load to and use the bar load instead or you can try to define a line load by two points rather than using load on panel's edge.

[sirkris]

Rafal,

I did not - Robot split edges after mesh generation.

[Rafal.Gaweda]

I do not believe.

If possible do it again, record movie and post it here.

[sirkris]

Rafal,

Unfortunately I removed all slabs, restarted robot  and I defined  them again.

Now edges stay as at the beginning.   Previously each edge of mesh element was contour segment.  The only proof is the picture I attached in first post. I cannot repeat this situation now. 

kris

[sirkris]

Rafal wrote: I do not believe.

Rafal,

Situation I described earlier happened again (see picture below) :

I found, that this happens when I corrected  bars intersections. It seems that Robot recognize some edges of FEM as bars, (what is strange, not all of them are split).

Another strange behaviour is, that Robot also removed line loads on edges (not all of them).

Could you explain such strange behaviour?

[Rafal.Gaweda]

I found, that this happens when I corrected  bars intersections. It seems that Robot recognize some edges of FEM as bars,

It is correct. You can divided edges by dividing them by nodes.

Another strange behaviour is, that Robot also removed line loads on edges (not all of them).

No, not removed. It should be assgned to one edge from this division. I mean if edge 1 was divided in 10 parts the load should be still applied to egde 1.

---

[sirkris]

It is correct. You can divided edges by dividing them by nodes.

The only problem is that after if I need to change some edge line loads, I need to add it on many small pieces. So I doubt this is correct. Can you explain rule, how edges are split? Some of them are not split.

This  is confusing - FEM edges are not bars.

No, not removed. It should be assgned to one edge from this division. I mean if edge 1 was divided in 10 parts the load should be still applied to egde 1.

Some loading disappear after bar intersections

Before bars intersections: 

After bar intersections: 

[Rafal.Gaweda]

I will investigate it.

Use correction settings as below:

[Rafal.Gaweda]

It seems it works like that now (We need to correct it or disable it but...)

- in case of Coons meshing - egde 1 and 3 are divided by all nodes , other edges by nodes of other panels - but not always

- in case of Delauney meshing - let's assume - "randomly".

Workaround in post above.