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Design Variable Property Relationships entityDesignVariablePropertyRelationships-24

Design Variable Property Relationships entityDesignVariablePropertyRelationships-24

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Design Variable Property Relationships entityDesignVariablePropertyRelationships-24

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Design variable property relationship entities are used to define relationships between design variables and properties for optimization problems.  Design variable property relationships are shown under the DesignVariablePropertyRelationship folder within the Model browser.  The Optimization View can be utilized to create, edit, and delete optimization problems.

Design variable property relationships do not have a display state.

Design variables property relationships have an active and export state.  The active state of a design variable property relationship controls the listing of the design variable property relationship in the Model browser and any of its views.  If a design variable property relationship entity is active, then it is listed in the Model browser and any of its views.  If a design variable property relationship entity is inactive, then it is not listed in the Model browser or any of its views.

The export state of a design variable property relationship entity controls whether or not that design variable property relationship is exported when the custom export option is utilized.  The all export option is not affected by the export state of a design variable property relationship.  The active and export states of design variable property relationship entities can be controlled using the Entity State browser.

The data names associated with design variable property relationships can be found in the data names section of the HyperMesh Reference Guide.

 

The following panels can be used to create and edit design variable property relationships:

Size

Gauge

 

Solver Card Support for Design Variable Property Relationships


hmtoggle_arrow1OptiStruct

An optimization problem is set up by defining responses, which are in turn constrained or set as objectives.

Design variables identify the varying quantities in an optimization problem.

All of the optimization panels are available from the Optimization menu when the OptiStruct user profile is loaded.

 

Supported Card

Solver Description

Supported Parameters

Notes

DVCREL1

Generic design variable to connectivity property relationship.  Supported as a designvariablepropertyrelationship entity.

CBAR, CELAS2, CELAS4, CMASS2, CMASS4, CDAMP2, CDAMP4, CONM1, CONM2, CONROD, CQUAD4, CTRIA3, CQUAD8, CTRIA6 elements can be selected.

 

Defined in the generic relationship subpanel of the Size panel.

DVCREL2

Generic design variable to connectivity property relationship.  Supported as a designvariablepropertyrelationship entity.

CBAR, CELAS2, CELAS4, CMASS2, CMASS4, CDAMP2, CDAMP4, CONM1, CONM2, CONROD, CQUAD4, CTRIA3, CQUAD8, CTRIA6 elements can be selected.

 

Defined in the function relationship subpanel of the Size panel.

DVMREL1

Generic design variable to material relationship.  Supported as a designvariablepropertyrelationship entity.

MAT1, MAT2, MAT8 and MAT9 materials can be selected.

 

Defined in the generic relationship subpanel of the Size panel.

DVMREL2

Function design variable to material relationship.  Supported as a designvariablepropertyrelationship entity.

MAT1, MAT2, MAT8 and MAT9 materials can be selected.

 

Defined in the function relationship subpanel of the Size panel.  Requires a dequation definition.

DVPREL1

Generic design variable to property relationship.  Supported as a designvariablepropertyrelationship entity.

PBAR, PBARL, PBEAM, PBEAML, PBUSH, PCOMP, PCOMPG*, PCOMPP, PDAMP, PELAS, PMASS, PROD, PSHEAR, PSHELL, PVISC properties and PLY entities can be selected.

 

Defined in the generic relationship subpanel of the Size panel.

Automatically defined in the Gauge panel for shell or ply thickness and ply orientations.

* For PCOMPG, either global plies or property specific plies may be selected.

DVPREL2

Function design variable to property relationship.  Supported as a designvariablepropertyrelationship entity.

PBAR, PBARL, PBEAM, PBEAML, PBUSH, PCOMP, PCOMPG*, PCOMPP, PDAMP, PELAS, PMASS, PROD, PSHEAR, PSHELL, PVISC properties and PLY entities can be selected.

 

Defined in the function relationship subpanel of the Size panel. Requires a dequation definition.

* For PCOMPG, either global plies or property specific plies may be selected

 

hmtoggle_arrow1Nastran

Some of the functionality of the optimization capability is general. This includes the equation utility, delete, rename, renumber, and reorder functions. To set up an optimization problem, responses, an objective function and constraints need to be defined. Further, design variables need to be defined. The optimization panels have separate Delete, Rename, Renumber, and Reorder panels to manipulate optimization entries.  These can be reached through the Optimization menu.

 

Supported Card

Solver Description

Supported Parameters

Notes

DVCREL1

Defines the relation between a connectivity property and design variables.

 

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.

 

Generic Property

DVPREL2

Defines the relation between an analysis model property and design variables with a user-supplied equation.

 

Function Property

 

 

See Also:

Optimization Browser View

Entity State Browser

Browsers

HyperMesh Entities & Solver Interfaces

Include Files

Optimization