PARAM, EXCEXB

Bulk Data Entry Controls the output of the AVL/EXCITE .exb file directly from OptiStruct.

Parameter Arguments Description
EXCEXB TYPE Defaults
If this parameter is included in the input file, but no value is provided, then the default value is GMOT.
GMOT
The AVL/EXCITE .exb file is output with all inertial invariants. This is the same as type CON6 in earlier versions of OptiStruct.
SMOT
The generation of the inertial invariants is turned OFF. The AVL EXCITE .exb file is output without the inertial invariants.
GMOTR
The generation of second order inertial invariants is turned OFF. The AVL EXCITE .exb file is output without second order inertial invariants.
NO
The AVL EXCITE interface output files are not output.
RECOV
YES or SEPARATE (Default)
The recovery matrix is written to a separate .exb file.
COMBINED
The recovery matrix is output in the main .exb file.
NO
The recovery matrix is not written to the .exb file.

Comments

  1. The .exb file contains the connection and interior GRID information, reduced mass, stiffness, and damping matrices, lumped mass matrix of the full system, eigenvalues and eigenvectors of the reduced system, recovery matrix for the interior point displacements, and the inertial invariants.
  2. DISP = NONE is the default in the generation run, if PARAM, EXCEXB is used. Therefore, if result recovery matrices are required in the .exb file, the corresponding DISP=ALL/<SID> should be added in the EXB generation run.