I try to merge some of the nodes in my model in ANSYS15, but the Ansys select all the nodes even after I select the nodes with entities. Can anyone help me on this topic?
Please mention which software Ansys APDL or Ansys Workbench. For Ansys APDL- NSEL command or selection tool in utilities menu is more than sufficient to select any no nodes. For Workbench selecting is done using combination of named selection and worksheet options. Have you made component of your selection in Ansys APDL? Components tool can show how many no of nodes you have selected and handling of any entities is very easy. Use NUMMRG command for merging nodes in ANSYS APDL and Workbench as well. You need to add command block in the mesh to merge nodes in Workbench.
Thank you for your answer. Actually, I'm using APDL...I already tried all the things you mentioned above, but it doesn't work.
For selecting all nodes attached to a entity
In ANSYS APDL utility menu
Goto Select > Entities>select any entity to which nodes are attached from drop down tab> OK> Select the entity of interest containing nodes
Again Goto Select > Entities> Nodes (First drop down tab)> Attached to (Second drop down tab)> entity just now selected> From full>OK
You can use command allsel, below, area(any entity to which the nodes are attached) for selecting only nodes attached to the interested entity.
In order to clear the selection Select> Everything in the utility menu or use ALLSEL,, command.
You may need to use combination of from full/reselect/also select/unselect to get required nodes.
Hope this will help.
Dear Nikhil
I already did all these steps...but at the end when I run the Merge items from the numbering ctrls menu all the model nodes merged. I just want to merge selected coincident nodes.
Have you changed the tolerance value with exact or slightly more gap size that you want to fill. E.g. I have created 2 blocks with 10*10*10 size with 0.5 distance apart. Then the nodes of areas having gap of 0.5 are selected by using above select tool. Then I simply entered command NUMMRG,NODE,0.6 and all nodes of this gap areas merged. Try it out. But note the warning about proper transfer of BC and meshing may not operate properly if nodes are associated with more than one solid. Hope that this will help you. Search Ansys help manual for more information.
my model nodes have the same coordinates. These nodes belong to 2 different volume but the same element. Therefore, I can't use tolerance option.
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