Do a modal analysis first before going for a Structural analysis. This will tell you which contacts are working and which are not. You can also use contact tool to evaluate state of the contacts.
If you can not use Shared topology in SpaceClaim, try using node merge operations under the mesh edit folder.
https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v195/wb_msh/gmsh_node_merge.html
For scale, you can see it as shown in the image below:
-Aniket
Guidelines on the Student Community
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