Release 2026 R1 includes the following Substructure Analysis enhancements:
Generation Pass Enhancements. When defining a Condensed Part or performing a Substructure Generation analysis:
You can now control whether the Constraint Mode Data (CST) required for an Expansion Pass is written to the Component Mode Synthesis (*.cms) file using the new Future Expansion property. Omitting the Expansion pass related data significantly reduces the size of the .cms file which is ideal for workflows where the expansion pass is not needed.
The application does not generate the *.LN22 and the *.BCLV files during the Generation pass except when the Keep Files For property of the Condensed Part object is set to MAPDL Expansion.