Overview
Create an MD DB using MSC Nastran
An MD DB can be created in the same way as creating an MNF. A new option, EXPORT, is added to ADAMSMNF card to specify the output option.
ADAMSMNF FLEXBODY=YES EXPORT=MNF/DB/BOTH
MNF: generate modal neutral file
DB: generate MD DB
BOTH: generate both MNF and DB
Please refer to MSC Nastran Quick Reference Guide and Reference Manual for more details.
Use Flex Toolkit to convert MNF to MD DB
You can also use the mnf2mtx utility to convert MNF to MD DB. The usage is:
adams flextk mnf2mtx source.mnf -O dest.MASTER
where source.mnf is the mnf you want to convert and dest.MASTER is the Database name. If dest.MASTER exists, mnf2mtx will append the flexible body in source.mnf to dest.MASTER. So you can combine MNFs into one MD DB using mnf2mtx. For example,
adams flextk mnf2mtx source1.mnf -O dest.MASTER
then
adams flextk mnf2mtx source2.mnf -O dest.MASTER
will append the flexible body in source2.mnf to dest.MASTER with INDEX=2.
Note: | With version 2015 or before, Adams MD DB import only supported Nastran i4 database files. In version 2015.1 or later Adams MD DB supports only i8 files. Support for i8 begun with MSC Nastran version 2016. |