Design Variables
Design variable entities define and store design variables for optimization problems.
Design variables do not have a display state in the modeling window.
Nastran Cards
| Card | Description |
|---|---|
| DESVAR | Defines a design variable for design optimization. Note: Design variable
definition.
|
| DLINK | Relates one design variable to one or more other design
variables. Note: Design variable link.
|
OptiStruct Cards
| Card | Description |
|---|---|
| DCOMP | Defines manufacturing constraints for composite sizing
optimization. Note: Bulk Data Entry
|
| DESVAR | Defines a design variable. Note: Bulk Data Entry
|
| DSHAPE | Defines parameters for the generation of free-shape design
variables. Note: Bulk Data Entry
|
| DSHUFFLE | Defines parameters for the generation of composite
shuffling design variables. Note: Bulk Data Entry
|
| DSIZE | Defines parameters for the generation of free-size design
variables. Note: Bulk Data Entry
|
| DTPG | Defines parameters for the generation of topography design
variables. Note: Bulk Data Entry
|
| DTPL | Defines parameters for the generation of topology design
variables. Note: Bulk Data Entry
|
| DVGRID | Defines the relationship between a design variable and a
grid point location. Note: Bulk Data Entry
Exported in large field format by both the optistruct and optistructlf templates. |
Radioss Cards
| Card | Description |
|---|---|
| DESVAR | Defines an optimization design variable (max. or min.). |
| DSHAPE | Design variable for Free-Shape optimization. |
| DSIZE | Design variable for Free-Size optimization. |
| DTPG | Design variable for Topography optimization. |
| DTPL | Design variable for Topology optimization. |
| DVPREL1 | Defined linearly, relates a design variable to an analysis model property using the equation. |
| DVGRID | Defines the relationship between design variable and grid point location. |