Export Tutorial

Five main options are available to export .bdf files in FEX:

Export only Displayed entities.
Export only Selected entities.

Note that if displayed/selected elements or grids are referenced to a coordinate system or any other entity it will be included in the exported file.

Export All: every entity present in the model will be written, even if it is not used by any other entity. In addition, original comments and skipped lines will be written too.
FEX remembers relative position of every entity in the original .bdf file and uses this information to mimic the same file structure.

Export by Groups

Standalone Files. For each group a .bdf file is created. This file does not have any external dependencies, thus it may be opened independently. Shared entities such as nodes, properties, materials, etc will be written in each file that has any reference to them, resulting in duplication.
Included Files. For each group a .bdf file is created. Shared entities are only written in one file. In addition materials, properties and coordinate systems are written in dedicated files. All files are then linked by includes.

 

To illustrate better how Export works consider the following situation:

Six groups have been previously made (one per model part). MPCs and some concentrated masses don’t belong to any group.

Export > Standalone Files:

Six files are created, each of them can be opened independently:

If you try to combine all those six files using the include statement you will probably get a lot of duplicate entity warnings. Instead use the following option for exporting:

Export > Included Files:

In order to avoid entity duplication among different files FEX needs to reorganize groups. You will be asked for a confirmation:

Engine_Included.bdf is the linker file that includes all exported .bdfs:

Note that this way of exporting ensures you to export everything, even those entities that do not belong to any group.