PARAM, TRAKMTX
Bulk Data Entry Controls output of the mode tracking matrix during optimization.
Parameter | Values | Description |
---|---|---|
TRAKMTX | <0,
1> Defaults:
|
TRAKMTX
is a parameter that controls the output of the mode tracking matrix
during optimization.
The following example is of mode tracking matrix. For this
example, assume that:
Mode Tracking Matrix:
Based on the above matrix, Mode 1 (of the previous iteration) will get tracked to Mode 1 (of current iteration). Mode 2 will get tracked to Mode 2. Mode 3 will get tracked to Mode 4. Mode 4 will get tracked to Mode 3. Mode 5 could not be tracked to any of the 10 modes in the current iteration (out of bounds). |
Comments
- Each element of the mode tracking matrix stores the correlation value of two eigenvectors, which is calculated using certain mode tracking criteria (see PARAM, TRAKMETH and MODTRAK Bulk Data Entry).
- PARAM, MODETRAK, YES or the subcase selector MODTRAK = YES or SID should be added to the input file to activate mode tracking.