Design Variable Property Relationships
Design variable property relationship entities define relationships between design variables and properties for optimization problems.
Design variable property relationships do not have a display state in the modeling window.
Nastran Cards
Card | Description |
---|---|
DVCREL1 | Defines the relation between a connectivity property and design
variables. Note: Generic Property
|
DVCREL2 | Defines the relation between a connectivity property and design variables with a user-supplied equation. |
DVMREL1 | Defines the relation between a material property and design variables. |
DVMREL2 | Defines the relation between a material property and design variables with a user-supplied equation. |
DVPREL1 | Defines the relation between an analysis model property and design
variables. Note: Generic Property
|
DVPREL2 | Defines the relation between an analysis model property and design variables
with a user-supplied equation. Note: Function Property
|
OptiStruct Cards
Card | Description |
---|---|
DVCREL1 | Linearly relates a design variable to an analysis model
element property using the equation:
CBAR, CELAS2, CELAS4, CMASS2, CMASS4, CDAMP2, CDAMP4, CONM1, CONM2, CONROD, CQUAD4, CTRIA3, CQUAD8, CTRIA6 elements can be selected. Note: Bulk Data
Entry
|
DVCREL2 | Relates design variables to an analysis model element
property using a relationship defined by a DEQATN card. The
equation inputs come from the referenced DESVAR values and constants defined on a
DTABLE card. CBAR, CELAS2, CELAS4, CMASS2, CMASS4, CDAMP2, CDAMP4, CONM1, CONM2, CONROD, CQUAD4, CTRIA3, CQUAD8, CTRIA6 elements can be selected. Note: Bulk Data
Entry
|
DVLREL1 | Linearly relates a design variable to an analysis model element. |
DVLREL2 | Relates a design variable to an analysis model loading using a relationship defined by a DEQATN card. The equation inputs come from the referenced DESVAR values and the constants defined on the DTABLE card. |
DVMREL1 | Linearly relates a design variable to an analysis model
material property using the equation:
MAT1, MAT2, MAT8 and MAT9 materials can be selected. Note: Bulk Data
Entry
|
DVMREL2 | Relates design variables to an analysis model material
property using a relationship defined by a DEQATN card. The
equation inputs come from the referenced DESVAR values and
constants defined on a DTABLE card. MAT1, MAT2, MAT8 and MAT9 materials can be selected. Note: Bulk Data
Entry
Requires a dequation definition. |
DVPREL1 | Linearly relates a design variable to an analysis model
property using the equation:
PBAR, PBARL, PBEAM, PBEAML, PBUSH, PCOMP, PCOMPG*, PCOMPP, PDAMP, PELAS, PMASS, PROD, PSHEAR, PSHELL, PVISC properties and PLY entities can be selected. Note: Bulk Data
Entry
For PCOMPG, either global plies or property specific plies may be selected. |
DVPREL2 | Relates a design variable to an analysis model property
using a relationship defined by a DEQATN card. The equation
inputs come from the referenced DESVAR values and the constants
defined on the DTABLE card. PBAR, PBARL, PBEAM, PBEAML, PBUSH, PCOMP, PCOMPG*, PCOMPP, PDAMP, PELAS, PMASS, PROD, PSHEAR, PSHELL, PVISC properties and PLY entities can be selected. Note: Bulk Data
Entry
Requires a dequation definition. For PCOMPG, either global plies or property specific plies may be selected. |