Nastran usage

The meshing and FEA are fully automated and leverage Nastran technology embedded directly in Adams, the Adams ViewFlex solver. In case you have Nastran installation available, on Windows OS it gets automatically detected from windows registry, on Linux OS it searches the paths specified in the PATH environment variable. If detected, the Nastran choice will be available in the Preprocessor option menu of Gear AT Mesh dialog box. You can override the logic described above by setting NASTRAN_TOP_DIR environment variable either in the OS or by use of gear_at_ini.cmd configuration file. This variable should point to the Nastran installation directory, e. g.:

The advantage of standalone Nastran installation usage is that it makes use of shared-memory parallel (SMP) processing in several numeric modules if corresponding license feature is available. The SMP processing reduces elapsed time at the expense of increased CPU time. By default, the maximum number of processors is used by Gear AT mesh preprocessing.