Running SOL111 for Structural output in NAS2019.1 with ACMS
leads to job abort with ^
*** SYSTEM FATAL MESSAGE 9160 (SUBDMAP MDACMS)
PROBLEM ENCOUNTERED IN CALCULATING DOMAINSOLVER ACMS DOMAIN MODES.
USER ACTION: IF LARGE MASS IS BEING USED FOR ENFORCED MOTION THEN REPLACE LARGE MASS METHOD WITH DIRECT METHOD
USING THE SPCD BULK DATA ENTRY.
USER INFORMATION: IF THE LARGE MASS METHOD IS NOT BEING USED THEN MASSLESS MECHANISMS MAY EXIST.
PARAM,MECHFIX,YES MAY BE USED TO IDENTIFY MASSLESS MECHANISMS.
1 SEPTEMBER 25, 2020 MSC Nastran 12/18/18 PAGE 2780
What other can be done, when the presesnt of massles mechanism where checked ?
