In assemblies, various contact conditions can exist, and are automatically detected in the Automatic Contacts command. The simulation properties specify the tolerance and type of contact that are automatically assigned.
Review the contacts that are generated to ensure that they accurately represent the physical interactions of your model. Only one contact type serves as the default for automatically inferred contacts, so some modification afterward can be necessary.
Automatic Contacts
To add contact conditions automatically, click the Automatic Contacts command. Alternatively, right-click the Contact node and click Automatic Contacts.
Manual Contacts
At times, it is necessary to add contacts manually.
Add contact conditions manually