definition internal constraints in beams with apdl

[enrico1979]

Bye, guys.

I hope it's okay.

I was wondering what I thought was trivial to find in apdl, but instead...
in the case of cross-sections the v12 exceeds the problem of the hinges between the reciprocal components defining a spar 2d element and is fine (although still I do not understand how the prblem can be circumvented in version v14).
in case I had 2 beams, where there was an ink, a zipper (between the two beams that do not bind the same to the ground) and a cart (well different from the case of an ink, a zipper in turn bound to the ground and a cart) as I should behave.
I have tried to define local reference systems, or the coupling\ceqn>coicident node but nn live and I do not find any literature about it
I would be grateful if someone would tell me how to model internal constraints.

thanks early and good Sunday

bye

 

[eih64]

Take a look at this command, you'll see that it answers the case.
end of release

Good job

 

[enrico1979]

I found a tutorial on youtube that I believe does to my case even if following what I did in the tutorial (use commands like cp etc.) but
comparing the results with ftool (which for 2d beams is very useful and very simple to use) I do not find correspondence.
I will try with your advice

Thank you and good evening.

If you're interested, I'll put the tut's idle above.
http://youtu.be/f5vmyujy8la