Global Matrix Output Request
Description: Requests output of the global stiffness, differential stiffness, damping, and mass matrices at selected phases of analysis at specified grid points.
Format:
Example:
GLBMATRIX(KA, MA) = 25
| Option | Definition | Type | Default |
|---|---|---|---|
| KG | Include output of the global stiffness matrix before modification for multipoint constraints. | Character | |
| KN | Include output of the global stiffness matrix after modification for multipoint constraints. | Character | |
| KF | Include output of the global stiffness matrix after modification for single point constraints. | Character | |
| KA | Include output of the global stiffness matrix after reduction to the analysis set. | Character | |
| MG | Include output of the global mass matrix before modification for multipoint. | Character | |
| MN | Include output of the global mass matrix after modification for multipoint. | Character | |
| MF | Include output of the global stiffness matrix after modification for single point constraints. | Character | |
| MA | Include output of the global mass matrix after reduction to the analysis set. | Character | |
| BG | Include output of the global damping or differential stiffness matrix before modification for multipoint constraints. | Character | |
| BN | Include output of the global damping or differential stiffness matrix after modification for multipoint constraints. | Character | |
| BF | Include output of the global damping or differential stiffness matrix after modification for single point constraints. | Character | |
| BA | Include output of the global damping or differential stiffness matrix after reduction to the analysis set. | Character | |
| ALL | The specified matrices at all grid points will be output. | Character | ✓ |
| n | Set identifications number of a previously appearing SET command. Only grid points whose identification numbers appear on this SET will be included in the output. | Integer > 0 | |
| NONE | Matrix output will be suppressed. | Character | ✓ |
Remarks:
- Selecting ALL for even small models may result in a very large Model Results File.
- If no matrix type (KG, KN, KF, KA, etc.) is specified, all types will be output.
- Output is not supported for all matrix types at all phases of analysis. A request for a phase that is not supported will result in no output for that phase with no warning message.
- The B matrix types can be used to output global differential stiffness in solutions where this matrix is generated (i.e., buckling and prestress).