Manually Edit DOF

 

Clicking the Manually Edit DOF button on the main GA form will bring up the Edit Accelerometer Selection form, shown in Figure 12. This form allows the user to interactively adjust the GA-selected DOF to examine the effects on the TAM's cost and any other result metric (Pseudo-Orthogonality, Cross-Orthogonality, XMAC, or frequency comparison). If GA results exist in the main form when the Manually Edit DOF button is clicked then the best GA accelerometer set will be pre-selected. If no GA results exist, the form will open without any DOF selected. Used in this way the user can manually select DOF and interactively examine the cost and error metrics for a manually selected DOF set. If the user desires to start from scratch, the GA form is still required to load the FEM configuration(s), select target modes, and select the TAM cost function.

The left side of the form contains the DOF table which lists the union of all candidate sets over all FEM configurations and the rank for any selected DOF. This table can be sorted in ascending or descending order by clicking the DOF or Rank headers of the DOF table. The Load Aset button can be used to select DOF based on the contents of a Nastran bulk data file with ASET cards.

The Calculate Cost button on the top right calculates the cost and rank of the selected DOF set and displays the cost in the table. When the cost has been calculated, any of the button in the Show Results section can be used to generate the various plots. These buttons utilize the same functionality from the GA main form in the Results menu option.

The Buffered ASETs region of the form allows the user to temporarily store and revert to up to three different accelerometer sets.

The Export ASET and Export XML buttons on the bottom-left of the form write Nastran ASET cards and XML reports of the selected DOF, providing the same functionality available from the main GA form in the Export menu option.

Figure 12. Edit Accelerometer Selection form.