HyperMesh and BatchMesher

Free Size Panel

Free Size Panel

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Free Size Panel

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Location:   Analysis page – Optimization panel (OptiStruct user profile)

 

Use the Free Size panel to define design domains for free size optimization.

For more information on free size design variables, see DSIZE in the OptiStruct online help.

 

Subpanels and Inputs


The Free Size panel contains the following subpanels and command buttons:

hmtoggle_arrow1Create

Panel Inputs

Input

Action

desvar

Name for the design variable

type

Entity type

props

Select the property.

minimum thickness

Specify a non-zero value for the minimum shell (for PSHELL) or set global TMINPLY for PCOMP and PCOMPG.

maximum thickness

Specify a maximum thickness other than the shell (for PSHELL) or set global TMINPLY for PCOMP and PCOMPG thickness defined on the property card.

 

hmtoggle_arrow1Update

Panel Inputs

Input

Action

desvar

Name for the design variable

type

Entity type

props

Select the property.

minimum thickness

Enter the minimum thickness or select zero to be the minimum.

maximum thickness

Choose to use the thickness value from the selected property, or enter a thickness value.

 

hmtoggle_arrow1Parameters

Panel Inputs

Input

Action

desvar

Name for the design variable

minmemb off / mindim =

Enter a value for the member size control, or toggle the switch to off.

stress constraint

Enter a value for the stress constraint, or toggle the switch to none.

fatigue constraint

Enter a value for the fatigue constraint, or toggle the switch to none.

For more information on member size control, see Member Size Control for Free Size Optimization in the OptiStruct online help.

 

hmtoggle_arrow1Composites

Panel Inputs

Input

Action

desvar

Select the DSIZE design variable.

laminate thickness: min thickness /off

Enter a value for the laminate thickness (LAMTHK) minimum, or toggle the switch off.

laminate thickness: max thickness /off

Enter a value for the laminate thickness (LAMTHK) maximum, or toggle the switch off.

ply thickness: no. of constraints

Displays the number of constraints for ply thickness (PLYTHK). To modify this number, click Edit.

ply percentage: no. of constraints

Displays the number of constraints for ply thickness percentage (PLYPCT). To modify this number, click Edit.

ply manufacture: no. of constraints

Displays the number of constraints for manufacturable ply thickness (PLYMAN). To modify this number, click Edit.

balance: no. of constraints

Displays the number of constraints for balancing (BALANCE). To modify this number, click Edit.

constant: no. of constraints

Displays the number of constraints for constant thickness (CONST). To modify this number, click Edit.

ply drop-off: no. of constraints

Displays the number of constraints for ply drop-off (PLYDRP). To modify this number, click Edit.

 

hmtoggle_arrow1Pattern Grouping

Panel Inputs

Input

Action

desvar

Name for the design variable

pattern type

Select the pattern type.

second node

Used for 2-plns sym or 3-plns sym types.

ucyc

The number of repetitions in 360 degrees. Used for cyclic or cyc 1-pln types.

 

hmtoggle_arrow1Pattern Repetition

Panel Inputs

Input

Action

desvar

Name for the design variable

master / slave / none

Determine whether you are establishing a master coordinate system, a slave design variable, or neither.

system /coordinates

Choose to manually enter the values for the coordinate system, or to graphically select the system.

global system / local system

Reference coordinate system

anchor

Select the anchor node.

sx /sy /sz

x, y and z scale factors.

 

hmtoggle_arrow1Zone Based

Panel Inputs

Input

Action

desvar

Select the DSIZE design variable.

zone definition sets

Select sets for zone based (GROUP) free-sizing optimization.

 

hmtoggle_arrow1Command Buttons

The following action buttons appear throughout the subpanels:

Button

Action

create

Create the design variable.

edit

Open the property collector panel to edit the property.

reject

Revert the most recent changes.

review

Review the load in the graphic area.

update

Update the load with the most recent changes.

return

Exit the panel.

 

 

 

See Also:

Free Size Optimization in the OptiStruct online help