Keyword type: step
This option is used to prescribe the nodal degrees of freedom which are kept in a *SUBSTRUCTURE GENERATE analysis. It cannot be used in any other sort of analysis.
There is one optional parameter: SORTED=NO. It is not possible to request a sorting of the degrees of freedom entered. The entries in the substructure stiffness matrix are in the order introduced by the user.
No transformation is allowed. Consequently, the global Carthesian system applies.
Example: *RETAINED NODAL DOFS 73,1,3
retains the degrees of freedom one through three (global) of node 73.
Example files: substructure.