O

O (UP19980820 ) OMEGA, OMEGX, OMEGY, OMEGZ, KSPIN

Specifies the rotational velocity of the structure.

SOLUTION:Inertia

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OMEGX, OMEGY, OMEGZ

KSPIN

Notes

Menu Paths

Main Menu >Preprocessor >Loads >Apply >Other >Angular Velocity

Main Menu >Preprocessor >Loads >Delete >Other >Angular Velocity

Main Menu >Solution >Apply >Other >Angular Velocity

Main Menu >Solution >Delete >Other >Angular Velocity

OPADD, NRES, NUM1, NUM2, C1, C2

Forms a set of optimization parameters by adding two sets.

OPTIMIZATION:Operations

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NRES

NUM1

NUM2

C1

C2

Notes

NRES = (C1 x NUM1) + (C2 x NUM2)

Menu Paths

Main Menu >Design Opt >Combine

OPANL, Fname, Ext, Dir

Defines the analysis file to be used for optimization looping.

OPTIMIZATION:Files

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Fname

Ext

Dir

Default: If interactive, no default; if batch, use the batch input stream (File.BAT).

Notes

Menu Paths

Main Menu >Design Opt >Assign

OPCLR

Clears the optimization database.

OPTIMIZATION:Operations

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Notes

Menu Paths

Main Menu >Design Opt >Clear & Reset

OPDATA, Fname, Ext, Dir

Identifies the file where optimization data is to be saved.

OPTIMIZATION:Files

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Fname

Ext

Dir

Default: Optimization data is saved on file.OPT.

Notes

Menu Paths

Main Menu >Design Opt >Controls

OPDEL, NSET1, NSET2

Deletes optimization design sets.

OPTIMIZATION:Operations

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NSET1

NSET2

Notes

Menu Paths

Main Menu >Design Opt >Select/Delete

OPEQN, KFOBJ, KFSV, KWGHT, KOPPR, INOPT

Controls curve fitting for the subproblem approximation method.

OPTIMIZATION:Specifications

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KFOBJ

KFSV

KWGHT

KOPPR

INOPT

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPERATE

Specifies "Operation data" as the subsequent status topic.

POST26:Status

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Notes

Menu Paths

This command cannot be accessed directly in the menu.

OPEXE

Initiates optimization looping.

OPTIMIZATION:Run

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Notes

Menu Paths

Main Menu >Design Opt >Run

OPFACT, Type

Defines the type of factorial evaluation to be performed.

OPTIMIZATION:Specifications

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Type

Default: Perform a full factorial analysis.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPFRST, NITR, SIZE, DELTA

Defines specifications for the first order optimization method.

OPTIMIZATION:Specifications

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NITR

SIZE

DELTA

Default: NITR=10, SIZE=100, DELTA=0.2.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPGRAD, Dset, DELTA

Specifies which design set will be used for gradient evaluation.

OPTIMIZATION:Specifications

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Dset

DELTA

Default: As described for each argument above.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPKEEP, Key

Specifies whether to save the best-set results and database file.

OPTIMIZATION:Specifications

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Key

Default: Do not save the database and results for the best design set.

Notes

Menu Paths

Main Menu >Design Opt >Controls

OPLFA, Name, Effect, EMIN, EMAX

Displays the results of a factorial evaluation.

OPTIMIZATION:Display

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Name

Effect

EMIN

EMAX

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Factorial

OPLGR, Pname, Dvnam1, Dvnam2, Dvnam3, Dvnam4, Dvnam5, Dvnam6

Graphs the results of a gradient evaluation.

OPTIMIZATION:Display

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Pname

Dvnam1, Dvnam2, Dvnam3, Dvnam4, Dvnam5, Dvnam6

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Gradient

OPLIST, SET1, SET2, LKEY

Displays the parameters for design sets.

OPTIMIZATION:Display

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SET1, SET2

LKEY

Notes

Menu Paths

Main Menu >Design Opt >List

OPLOOP, Read, Dvar, Parms

Specifies controls for optimization looping.

OPTIMIZATION:Specifications

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Read

Dvar

Parms

Default: Read=TOP, Dvar=IGNORE, and Parms=SCALAR.

Menu Paths

Main Menu >Design Opt >Controls

OPLSW, Pname, Dvnam1, Dvnam2, Dvnam3, Dvnam4, Dvnam5, Dvnam6

Graphs the results of a global sweep generation.

OPTIMIZATION:Display

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Pname

Dvnam1, Dvnam2, Dvnam3, Dvnam4, Dvnam5, Dvnam6

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Sweeps

OPMAKE

Creates a design set using active scalar parameter values.

OPTIMIZATION:Operations

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Notes

Menu Paths

Main Menu >Design Opt >Create

OPNCONTROL, Lab, VALUE, NUMSTEP

Sets decision parameter for automatically increasing the time step interval.

SOLUTION:AnalysisOptions

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Lab

VALUE, NUMSTEP

Notes

Menu Paths

Main Menu >Preprocessor >Loads >Nonlinear >Open Control

Main Menu >Solution >Nonlinear >Open Control

OPPRNT, Key

Activates detailed optimization summary printout.

OPTIMIZATION:Specifications

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Key

Notes

Menu Paths

Main Menu >Design Opt >Controls

OPRAND, NITR, NFEAS

Defines the number of iterations for a random optimization.

OPTIMIZATION:Specifications

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NITR

NFEAS

Default: Perform 1 iteration.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPRESU, Fname, Ext, Dir

Reads optimization data into the optimization database.

OPTIMIZATION:Files

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Fname

Ext

Dir

Notes

Menu Paths

Main Menu >Design Opt >Resume

OPRFA, Name

Prints the results of a factorial evaluation.

OPTIMIZATION:Display

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Name

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Print

OPRGR, Name

Prints the results of a gradient evaluation.

OPTIMIZATION:Display

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Name

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Print

OPRSW, Name

Prints the results of a global sweep generation.

OPTIMIZATION:Display

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Name

Notes

Menu Paths

Main Menu >Design Opt >Tool Results >Print

OPSAVE, Fname, Ext, Dir

Writes all optimization data to a file.

OPTIMIZATION:Files

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Fname

Ext

Dir

Notes

Menu Paths

Main Menu >Design Opt >Save

OPSEL, NSEL

Selects design sets for subsequent optimization looping.

OPTIMIZATION:Operations

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NSEL

Notes

Menu Paths

Main Menu >Design Opt >Select/Delete

OPSUBP, NITR, NINFS

Defines number of iterations for subproblem approximation method.

OPTIMIZATION:Specifications

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NITR

NINFS

Default: NITR=30, NINFS=7.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPSWEEP, Dset, NSPS

Specifies the reference point and number of evaluation points for a sweep generation.

OPTIMIZATION:Specifications

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Dset

NSPS

Default: As described by the arguments above.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

/OPT

Enters the design optimizer.

SESSION:ProcessorEntry OPTIMIZATION:Specifications

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Notes

Menu Paths

Main Menu >Design Opt

OPTYPE, Mname

Specifies the optimization method to be used.

OPTIMIZATION:Specifications

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Mname

Default: Perform a single optimization run (Mname=RUN) with current parameter values for the defined design variables.

Notes

Product Restrictions

Menu Paths

Main Menu >Design Opt >Method/Tool

OPUSER, NITR, VAL1, VAL2, VAL3, VAL4, VAL5, VAL6, VAL7, VAL8

Defines specifications for user-supplied external optimization.

OPTIMIZATION:Specifications

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NITR

VAL1, VAL2, VAL3, VAL4, VAL5, VAL6, VAL7, VAL8

Default: NITR=1, VAL1 through VAL8 equal zero.

Notes

Menu Paths

Main Menu >Design Opt >Method/Tool

OPVAR, Name, Type, MIN, MAX, TOLER

Specifies the parameters to be treated as optimization variables.

OPTIMIZATION:Specifications

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Name

Type

MIN

MAX

TOLER

Default: No optimization parameters defined.

Notes

Menu Paths

Main Menu >Design Opt >Design Variables

Main Menu >Design Opt >Objective

Main Menu >Design Opt >State Variables

OUTOPT

Specifies "Output options" as the subsequent status topic.

SOLUTION:Status

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Notes

Menu Paths

Utility Menu >List >Status >Solution >Output Options

OUTPR, Item, FREQ, Cname

Controls the solution printout.

SOLUTION:MiscLoads

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Item

FREQ

Cname

Default: No printout.

Notes

Menu Paths

Main Menu >Preprocessor >Loads >Output Ctrls >Solu Printout

Main Menu >Solution >Output Ctrls >Solu Printout

/OUTPUT, Fname, Ext, Dir, Loc

Redirects text output to a file or to the screen.

SESSION:RunControls

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Fname

Ext

Dir

Loc

Default: Text output is written to the screen for interactive runs and to the system output file for batch runs (see the ANSYS Basic Analysis Procedures Guide).

Notes

Menu Paths

Utility Menu >File >Switch Output to >File

Utility Menu >File >Switch Output to >Output Window

OUTRES, Item, FREQ, Cname

Controls the solution data written to the database.

SOLUTION:MiscLoads

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Item

FREQ

Cname

Default: Write all items as follows: For ANTYPE=STATIC and TRANS, the default is to write the last substep of each load step. For ANTYPE=HARMIC and any expansion pass, the default is to write every substep. For reduced or mode superposition transients, the default is to write the reduced displacements file every 4th substep (as well as the last substep), unless gap conditions exist, then the default is to write every substep.

Notes

Menu Paths

Main Menu >Preprocessor >Loads >Output Ctrls >DB/Results File

Main Menu >Solution >Output Ctrls >DB/Results File