MPC184 for connecting all nodes

- June 9, 2020 at 4:21 am
  
  Andreyteston
  Subscriber
  
  Hello, members.
  
  I would like to connect all nodes in the top of the column in the same master node using the command MPC184. Currently, I have been using CERIG command to apply restrictions for the base of the column describing a rigid region and, RBE3 command to apply displacement in the top of the column. However, how my analysis is for large displacement, I would like to use the element MPC184, recommended for non-linear analysis.
  
  1) Using MPC184 on Mechanical APDL, I only know to connect one node at a time, or, one node for a line of the command. I have been trying to use the command nsel, cmsel, however, I could not. How could I connect all nodes on the master node on Mechanical APDL?
  
  2) I would like to have one model look similar to below:
  
  3) The nodes at the top of my column are those and I would like to connect all.
  
  I wonder if any member could help me.
  
  Regards.
- June 18, 2020 at 5:43 pm
  
  Wenlong
  Ansys Employee
  
  Hi Ândrey ,
  
  I just see this one. I guess this one is already addressed in your newer post /forum/forums/topic/constraint-equations-may-not-be-valid-for-elements-that-undergo-large-deflections/?
  
  Thanks,
  
  Regards,
  
  Wenlong
- June 18, 2020 at 11:15 pm
  
  Andreyteston
  Subscriber
  
  Hi, Wenlong!
  
  You are sure. I have posted this topic before the topic mentioned in this link, after that, I have posted a second post using other terms, that you kindly have solved.
  
  The solution is here: /forum/forums/topic/constraint-equations-may-not-be-valid-for-elements-that-undergo-large-deflections/
  
  Thank you, again.
  
  Regards,
  
  Ândrey