Bulk Data File (BDF)
For the nonlinear option, the Adams flexible body is based on a run-ready data deck suitable for Nastran SOL400, the implicit nonlinear analysis mode within Nastran. And, if working through an Adams GUI like Adams View or Adams Car, only a valid mesh definition is required via bulk data file (BDF). That BDF is imported into the GUI and then at analysis time the GUI generates the run-ready data deck to be used in the analysis which will have the .dat extension so one can distinguish it from the originating file (.bdf) in the Adams working directory.
Notes: | ■Adams View reads the BDF and if it does not contain units data, then the user must specify it in the flexible body creation dialog. If the BDF units differ from those of the Adams model, Adams View will scale the geometry and mass properties appropriately in session; however, it does not edit the values within the BDF to reflect the Adams model units. ■Abaqus input files can be converted to MSC Nastran SOL400 BDF's via the Adams Flex Toolkit's ABQ2NAS command . |