MDF Export

To obtain the more accurate stress/strain recovery results for all animation frames after simulating a RFlex model, it is necessary to create a MDF file which contains both modal coordinate results and the rigid motion results about each RFlex body in NX Nastran. And then, the user can get the stress/strain recovery results as the OP2 or PCH file type in NX Nastran by using both a BDF file which is the bulk data file contained several information such as elements, nodes, and so on and a MDF file.

RAD(or RAN) and RPLT files should be generated to use this function.

Figure 1  MDFExport icon of the RFlex group in the Flexible tab

Figure 2  MDF Export dialog box

•     Check box: Selects a target RFlex body for making a MDF file.

•     Detail: Executes the Detail MDF Export dialog box. 

•     Select all: Selects all check boxes.

•     Deselect all: Deselects all check boxes.

•     Export: Exports MDF files for the selected RFlex bodies.

•     Close: Exits the MDF Export dialog box.

•     Detail MDF Export

Figure 3  Detail MDF Export dialog box

•    Fr: Selects the skipped time index for the whole simulation time.

Figure 4  Skipped Time Index Selection dialog box

o  …: Changes the file name and the directory location to make a MDF file.