O

Specifies the rotational velocity of the structure.

SOLUTION:Inertia

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Rotational velocity of the structure about the global Cartesian X, Y, and Z axes.

Spin softening key:

- 0 - No modification of stiffness matrix due to rotation.

1 - Decrease radial stiffness due to rotation (i.e., include spin softening effects).

Specifies the rotational velocity of the structure about each of the global Cartesian axes (right-hand rule). Rotational velocities may be defined in analysis types ANTYPE=STATIC, HARMIC (full), TRANS (full), and SUBSTR. Rotational velocities are combined with the element mass matrices to form a body force load vector term. Units are radians/time. Related commands are ACEL, CGLOC, CGOMGA, DCGOMG, and DOMEGA.

The KSPIN option allows adjusting the stiffness matrix of a rotating body for dynamic mass effects. This adjustment is referred to as spin softening. The adjustment approximates the effects of geometry changes due to large deflection circumferential vibration in a small deflection analysis. It should not be used with large deflection. It is usually used in conjunction with prestressing [PSTRES].

The overall stiffness matrix should not be reused [KUSE] if OMEGA command parameters change between substeps. See Section 3.4 of the ANSYS Theory Reference for matrix details.

This command is also valid in PREP7.

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

Forms a set of optimization parameters by adding two sets.

OPTIMIZATION:Operations

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Number assigned to results set. If same as existing set, the existing values will be overwritten by these results (defaults to next available set number).

Number of first design set to be used in operation.

Number of second design set to be used in operation (may be blank).

Scale factor applied to NUM1 (defaults to 1.0).

Scale factor applied to NUM2 (defaults to 1.0).

Forms a result set of parameters by adding two existing design sets according to the operation:

OPADD can also be used to scale results for a single set. If no set number is specified for the results set (NRES), it defaults to the next available set number. Because no compression of set numbers is done, the next available set number will be either 1 + the highest existing set number, or 1 + the highest set number used (if sets with higher numbers previously existed but have been removed).

Main Menu >Design Opt >Combine

Defines the analysis file to be used for optimization looping.

OPTIMIZATION:Files

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File name (32 characters maximum).

File name extension (8 characters maximum).

Directory name (64 characters maximum).

Notes

The optimization looping file must be specified for an optimization which is performed interactively. The file must exist at the time OPANL is issued. In this file, where the /PREP7 and /OPTcommands occur, they must be the first nonblank characters on the line (i.e., do not use the $ delimiter on any /PREP7 or /OPT command lines).

Main Menu >Design Opt >Assign

Clears the optimization database.

OPTIMIZATION:Operations

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Clears the optimization database. All settings are reset to their default values, and all design sets are deleted. This command is useful between multiple (independent) optimization analyses in the same batch run or interactive session.

Main Menu >Design Opt >Clear & Reset

Identifies the file where optimization data is to be saved.

OPTIMIZATION:Files

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File name (32 characters maximum). Defaults to Jobname.

File name extension (8 characters maximum). Defaults to OPT if Fname is blank.

Directory name (64 characters maximum). Defaults to current directory.

Notes

Identifies the file where optimization data is to be automatically saved during looping. Automatic saves occur at the end of each loop or iteration, and upon finishing out of the optimizer [FINISH]. (To save the data elsewhere in the optimizer, use OPSAVE.) Optimization data written to the file include DVs, SVs, saved design sets, analysis file name, etc. The data can be restored via the OPRESU command.

Main Menu >Design Opt >Controls

Deletes optimization design sets.

OPTIMIZATION:Operations

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First design set in range to be deleted. Defaults to 0. If NSET1 is blank and NSET2 is 1, all sets from the lowest existing set number to NSET2 will be deleted. If NSET1 = ALL, all design sets are removed.

Last design set in range to be deleted. Defaults to NSET1.

Deletes the design sets in a specified range. All sets occurring within that range (i.e., NSET1NNSET2, where N is an existing set number) are permanently removed from the optimization database. The original set numbers are retained for remaining design sets. Note that no compression of set numbers is done. Thus, if the highest set is deleted, the next available set number will be the previously existing highest set number + 1. (A maximum of 130 design sets can be stored in the optimization database.)

Main Menu >Design Opt >Select/Delete

Controls curve fitting for the subproblem approximation method.

OPTIMIZATION:Specifications

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Objective function curve fit:

0 - Quadratic plus cross-term curve fit for objective function (default).

1 - Linear curve fit.

2 - Quadratic curve fit.

3 - Quadratic plus cross-term fit (same as 0).

State variables curve fit:

0 - Quadratic curve fit for state variables (default).

1 - Linear curve fit.

2 - Quadratic curve fit (same as 0).

3 - Quadratic plus cross-term curve fit.

Weighting factors:

0 - Weights applied to design sets based on triple products of distance in design space, objective function values, and feasibility/infeasibility (KWGHT=2, 3, and 4, below) (default).

1 - All weights set to unity.

2 - Weights based on distance in design space.

3 - Weights based on objective function values.

4 - Weights based on feasibility/infeasibility.

Optimization printout:

0 - No printout of approximation data (default).

N - Printout every Nth optimization loop.

Approximation reformulation:

0 - Approximations are updated every loop (default).

N - Approximations are completely reformulated every Nth loop.

Controls the curve fitting for the optimization approximations used with the subproblem approximation method [OPTYPE,SUBP]. See Section 20.4 of the ANSYS Theory Reference for details.

Main Menu >Design Opt >Method/Tool

Specifies "Operation data" as the subsequent status topic.

POST26:Status

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This is a status [STAT] topic command. Status topic commands are generated by the GUI and will appear in the log file (Jobname.LOG) if status is requested for some items under Utility Menu>List>Status. This command will be immediately followed by a STAT command, which will report the status for the specified topic.

If entered directly into the program, the STAT command should immediately follow this command.

This command cannot be accessed directly in the menu.

Initiates optimization looping.

OPTIMIZATION:Run

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Initiates optimization looping using commands condensed from the analysis file [OPANL]. The type of optimization to be performed is specified by the OPTYPE command. Upon issuing this command, optimization looping begins and the design variables are updated as necessary based on the type of optimization chosen. Control remains with the ANSYS program until convergence or termination occurs, at which time the commands occurring after OPEXE are executed. This command is not allowed within a do-loop [*DO].

Main Menu >Design Opt >Run

Defines the type of factorial evaluation to be performed.

OPTIMIZATION:Specifications

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Type of factorial evaluation. Number of iterations is determined by the number of design variables (n).

FULL - Perform a full factorial analysis (default); 2**n iterations are required. n must be 7.

1/2 - Perform a 1/2 fractional factorial analysis. (1/2)*2**n iterations are required. n must be 8.

1/4 - Perform a 1/4 fractional factorial analysis. (1/4)*2**n iterations are required. n must be 9.

1/8 - Perform a 1/8 fractional factorial analysis. (1/8)*2**n iterations are required. n must be 10.

1/16 - Perform a 1/16 fractional factorial analysis. (1/16)*2**n iterations are required. n must be 10.

1/32 - Perform a 1/32 fractional factorial analysis. (1/32)*2**n iterations are required. n must be 10.

1/64 - Perform a 1/64 fractional factorial analysis. (1/64)*2**n iterations are required. n must be 10.

Notes

This command is valid for the factorial evaluation method of optimization [OPTYPE,FACT]. The factorial evaluation is defined as either full or fractional. The number of iterations performed is dependent on the number of design variables that have been defined (n).

Main Menu >Design Opt >Method/Tool

Defines specifications for the first order optimization method.

OPTIMIZATION:Specifications

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Maximum number of optimization iterations for the next execution [OPEXE]. Defaults to previously specified value, if any, otherwise defaults to 10.

Limit (in percent) that is applied to the size of each line search step. For example, setting SIZE = 10 will limit design variable changes to 10 percent of the maximum range of design space (defined by feasible design variable limits specified on OPVARcommands) at each iteration. Defaults to previously specified value, if any; otherwise, defaults to 100 (percent).

The forward difference (in percent) applied to the design variable range that is used to compute the gradient. For example, the shift in a DV is DELTA*(MAX - MIN)/100, where MIN and MAX are specified on the OPVAR command. Defaults to previously specified value, if any; otherwise, defaults to 0.2 (percent).

Notes

This command is valid for the first order method of optimization [OPTYPE,FIRST].

Main Menu >Design Opt >Method/Tool

Specifies which design set will be used for gradient evaluation.

OPTIMIZATION:Specifications

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BEST - Use the best design set as the evaluation point (default).

LAST - Use the last design set as the evaluation point.

N - Use design set number N as the evaluation point.

The forward difference applied to the design variable range that is used to compute the gradient. For example, the shift in a design variable (DV) is defined as DELTA*(MAX-MIN)/100, with MIN and MAX as specified on the OPVAR command. Defaults to 0.5.

Notes

This command is valid for the gradient evaluation method of optimization [OPTYPE,GRAD]. OPGRAD specifies which point (design set) in design space will be used to evaluate the gradient and what the forward difference will be.

Main Menu >Design Opt >Method/Tool

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

OPTIMIZATION:Specifications

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Save key:

OFF - Do not save the results and database files for the best design set (default).

ON - Save results and database files (File.BRST and File.BDB) for the best design set during optimization looping.

Notes

Specifies whether or not the results file and database file corresponding to the best design set (based on all existing sets) should be saved during optimization. The saved files will be named File.BRST (or .BRTH for thermal analysis, .BRMG for magnetic analysis, .BRFL for a FLOTRAN CFD analysis) and File.BDB. If Key=ON, both files will be saved at the end of each optimization loop which results in a new best design set. File.RST (results) and File.DB (database) will be saved as usual for the last design set, regardless of the Key setting. If multiple analyses are done within an optimization loop, then only the last analysis is considered for the Key=ON option. For example, if a thermal analysis is followed by a stress analysis, the files saved for the best set will be .BRST and .BDB, which will both correspond to the structural analysis.

Main Menu >Design Opt >Controls

Displays the results of a factorial evaluation.

OPTIMIZATION:Display

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Parameter name. The parameter must have been previously defined as the objective function or a state variable [OPVAR].

Display effects for parameter Name.

MAIN - Display main effects (default).

2FAC - Display two-factor interactions.

3FAC - Display three-factor interactions.

Minimum value of effect to be displayed. Default - computed minimum.

Maximum value of effect to be displayed. Default - computed maximum.

Displays the results of a factorial analysis in bar chart form. Only the 10 largest interaction values will be displayed in the specified range (EMIN to EMAX). This command is only valid after a factorial evaluation [OPTYPE,FACT].

Main Menu >Design Opt >Tool Results >Factorial

Graphs the results of a gradient evaluation.

OPTIMIZATION:Display

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Response parameter name. The parameter must have been previously defined as the objective function or a state variable [OPVAR].

Design variable names.

This command is only valid after a gradient evaluation [OPTYPE,GRAD]. Pname is graphed with respect to a plus or minus 1% change in design variable (Dvnam1,...Dvnam6).

Main Menu >Design Opt >Tool Results >Gradient

Displays the parameters for design sets.

OPTIMIZATION:Display

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Display values of all analysis parameters from SET1 (defaults to the highest existing set) to SET2 (defaults to SET1). If SET1 = ALL, display for all sets.

Listing key:

0 - List only scalar parameters related to optimization.

1 - List all analysis scalar parameters.

Displays the values of the parameters for specified design sets. Note that a STATUS command may also be issued to display various optimization data.

Main Menu >Design Opt >List

Specifies controls for optimization looping.

OPTIMIZATION:Specifications

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Indicates where to begin reading the analysis file during optimization looping. Note that the /PREP7 command (and the /OPT command) must occur as the first nonblank characters on a line in the analysis file (i.e., do not use the $ delimiter). Defaults to previously specified label, if any; otherwise, defaults to TOP:

TOP - Read from the first line.

PREP - Read from the first occurrence of /PREP7.

Indicates how to treat parameters which have been designated as design variables (DVs) during optimization looping. Defaults to previously specified label, if any; otherwise, defaults to IGNORE:

IGNORE - Do not process DV parameter assignments in the analysis file during looping.

PROCESS - Process DV parameter assignments in the analysis file during looping.

Indicates which types of parameters to save during optimization looping. Defaults to previously specified label, if any; otherwise, defaults to SCALAR:

SCALAR - Save scalar parameters only.

ALL - Save all parameters, both scalar and array.

Menu Paths

Main Menu >Design Opt >Controls

Graphs the results of a global sweep generation.

OPTIMIZATION:Display

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Response parameter name. The parameter must have been previously defined as the objective function or a state variable (OPVAR).

Design variable names.

This command is only valid after a global sweep generation [OPTYPE,SWEEP]. Pname is graphed with respect to the specified design variables (Dvnam1,...,Dvnam6). The design variables are normalized (0 to 1) along the X-axis.

Main Menu >Design Opt >Tool Results >Sweeps

Creates a design set using active scalar parameter values.

OPTIMIZATION:Operations

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The next available design set number is assigned to the new design set. Because no compression of set numbers is done, the next available set number will be either 1 + the highest existing set number, or 1 + the highest set number used (if sets with higher numbers previously existed but have been removed). Multiple design sets can be created by repeated use of PARRES (to read parameters from a file) and OPMAKE.

Main Menu >Design Opt >Create

Sets decision parameter for automatically increasing the time step interval.

SOLUTION:AnalysisOptions

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DOF label used to base a decision for increasing the time step (sub-step) interval in a non-linear or transient analysis. The only DOF label currently supported is TEMP.

Two values used in algorithm for deciding if the time step interval can be increased. The time step interval is increased if the maximum absolute value of the incremental solution at the specified DOF label is less than VALUE for the number of contiguous time steps specified by NUMSTEP. The default for VALUE is 0.1 and the default for NUMSTEP is 3.

This command is available only for nonlinear or transient analysis, and only when SOLCONTROL,ON.

Main Menu >Preprocessor >Loads >Nonlinear >Open Control

Main Menu >Solution >Nonlinear >Open Control

Activates detailed optimization summary printout.

OPTIMIZATION:Specifications

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Summary key:

OFF - Do not print details (default).

ON - Print the detailed summary.

FULL - Same as Key=ON, but includes a full list of all design sets.

Activates detailed optimization summary printout to the primary output during optimization analysis.

Main Menu >Design Opt >Controls

Defines the number of iterations for a random optimization.

OPTIMIZATION:Specifications

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Maximum number of optimization iterations for the next execution [OPEXE]. Defaults to previously specified value, if any; otherwise, defaults to 1.

Desired total number of feasible design sets (including existing feasible sets). Once NFEAS feasible sets are achieved, random iterations are terminated. If 0 is input, NITR random iterations will be performed independent of the number of feasible designs that are obtained. Defaults to previously specified value, if any; otherwise, defaults to 0.

Notes

This command is valid for the random design generation method of optimization [OPTYPE,RAND].

Main Menu >Design Opt >Method/Tool

Reads optimization data into the optimization database.

OPTIMIZATION:Files

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File name (32 characters maximum). Defaults to Jobname.

File name extension (8 characters maximum). Defaults to OPT if Fname is blank.

Directory name (64 characters maximum). Defaults to current directory.

Reads optimization data from the specified file into the optimization database. Optimization data must have been previously saved to this file [OPSAVE], or automatically written to this file in an earlier optimization analysis. All existing parameters will be deleted and replaced by those stored on the resumed file. (To save existing parameters, use PARSAV before OPRESU.)

Main Menu >Design Opt >Resume

Prints the results of a factorial evaluation.

OPTIMIZATION:Display

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Parameter name. The parameter must have been previously defined as the objective function or a state variable [OPVAR]. If Name=ALL, print results for all optimization response variables (default).

This command is only valid after a factorial evaluation [OPTYPE,FACT].

Main Menu >Design Opt >Tool Results >Print

Prints the results of a gradient evaluation.

OPTIMIZATION:Display

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Parameter name. The parameter must have been previously defined as the objective function or a state variable [OPVAR]. If Name=ALL, print results for all optimization response variables (default).

This command is only valid after a gradient evaluation [OPTYPE,GRAD].

Main Menu >Design Opt >Tool Results >Print

Prints the results of a global sweep generation.

OPTIMIZATION:Display

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Parameter name. The parameter must have been previously defined as the objective function or a state variable (OPVAR). If Name=ALL, print results for all optimization response variables (default).

This command is only valid after a global sweep generation [OPTYPE,SWEEP].

Main Menu >Design Opt >Tool Results >Print

Writes all optimization data to a file.

OPTIMIZATION:Files

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File name (32 characters maximum). Defaults to Jobname.

File name extension (8 characters maximum). Defaults to OPT if Fname is blank.

Directory name (64 characters maximum). Defaults to current directory.

Writes all optimization data to File.OPT or a named file. Saved data includes optimization data only (DVs, SVs, saved design sets, analysis file name, etc.). The data can be restored [OPRESU] for an optimization restart.

Main Menu >Design Opt >Save

Selects design sets for subsequent optimization looping.

OPTIMIZATION:Operations

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Number of best design sets to be selected. If NSEL = -1, select all feasible designs. If NSEL is positive and no objective function is defined, the following occurs: all infeasible design sets are removed; next the lowest number (oldest) feasible design sets are removed until NSEL sets are left (i.e., the latest feasible design sets are kept).

A number of best design sets or all feasible design sets may be specified. ("Best" design sets are determined by the objective function value for each feasible design.) All design sets not selected are permanently removed from the optimization database. The original set numbers are retained for remaining design sets. Note that no compression of set numbers is done. Thus, if the highest set is removed, the next available set will still be the previously used highest set number + 1. (A maximum of 130 design sets can be stored in the optimization database.)

Main Menu >Design Opt >Select/Delete

Defines number of iterations for subproblem approximation method.

OPTIMIZATION:Specifications

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Maximum number of optimization iterations for the next execution [OPEXE]. Defaults to previously specified value, if any; otherwise, defaults to 30.

Maximum number of consecutive infeasible design sets that are allowed. Once NINFS consecutive infeasible sets are encountered, iterations are terminated. Defaults to previously specified value, if any; otherwise, defaults to 7.

Notes

This command is valid for the subproblem approximation method of optimization [OPTYPE,SUBP].

Main Menu >Design Opt >Method/Tool

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

OPTIMIZATION:Specifications

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BEST - Use the best design set as the reference point (default).

LAST - Use the last design set as the reference point.

N - Use design set number N as the reference point.

Number of evaluation points used for each design variable sweep. Two to ten evaluation points are allowed. Defaults to 2 (i.e., the minimum and maximum design variable values).

Notes

This command is valid for the sweep evaluation method of optimization [OPTYPE,SWEEP].

Main Menu >Design Opt >Method/Tool

Enters the design optimizer.

SESSION:ProcessorEntry OPTIMIZATION:Specifications

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Enters the ANSYS optimizer for design optimization by iterative analyses. Upon issuing this command, if there are no existing design sets, all currently defined numerical scalar parameters are established as design set number 1.

This command is valid only at the Begin Level.

Main Menu >Design Opt

Specifies the optimization method to be used.

OPTIMIZATION:Specifications

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Name of the optimization method to be used:

SUBP - Subproblem approximation method. Specifications for this method are defined on the OPSUBP command.

FIRST - First order optimization method. Specifications for this method are defined on the OPFRST command.

RAND - Perform random iterations. Specifications for this method are defined on the OPRAND command.

RUN - Perform a single optimization run with current parameter values for the defined design variables.

FACT - Perform factored design iterations. Specifications for this method are defined on the OPFACT command.

GRAD - Compute a gradient (design sensitivity) at a point in design space. Specifications for this method are defined on the OPGRAD command.

SWEEP - Perform global sweeps through global design space starting from a single design set. Specifications for this method are defined on the OPSWEEP command.

USER - User-supplied external optimization. See the ANSYS Advanced Analysis Techniques Guide for user optimization information (USEROP routine). Parameters used for this method are defined on the OPUSER command.

Notes

Specifies the optimization method to be used upon execution [OPEXE].

Mname=USER is only allowed in ANSYS/Multiphysics, ANSYS/Mechanical, ANSYS/Structural, and ANSYS/PrepPost.

Main Menu >Design Opt >Method/Tool

Defines specifications for user-supplied external optimization.

OPTIMIZATION:Specifications

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Maximum number of optimization iterations for the next execution [OPEXE]. Defaults to previously specified value, if any; otherwise, defaults to 1.

Numerical values (double precision) for user-supplied optimizer. Values may be the results of parameter evaluations. Values are written to File.OPT after the parameter set data. VAL1-VAL8 default to previously specified values, if any; otherwise, default to 0.

Notes

Defines the number of iterations and the parameter values for user-supplied external optimization [OPTYPE,USER]. Values are passed to the user routine (USEROP) through the optimization common block.

Main Menu >Design Opt >Method/Tool

Specifies the parameters to be treated as optimization variables.

OPTIMIZATION:Specifications

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Parameter name (must be a scalar parameter).

Optimization variable type:

DV - Design variable. MAX must also be specified.

SV - State variable, also referred to as a constrained variable. (Usually defined via a *GET command.) MIN, or MAX, or both must be specified.

OBJ - Objective function (variable to be minimized). Only one objective function is allowed. MIN and MAX are not used.

DEL - Deletes this optimization variable (does not delete the parameter). This option only has meaning if the parameter Name was previously defined as an optimization variable (DV, SV, or OBJ). The parameter retains the value assigned during the last loop. MIN and MAX are not used.

Minimum value for this parameter. For Type=DV, MIN must be greater than 0.0 and defaults to 0.001*(MAX). For Type=SV, there will be no lower limit if MIN is left blank, but if MIN = 0.0, the lower limit is zero. MIN is ignored for Type=OBJ. MIN is also ignored for Type=DEL (except for the special case when Name=<blank> and Type=DEL, as described next).

When the GUI is on, if a Delete operation (in a "State Variables" or "Design Variables" dialog box) writes this command to a log file (Jobname.LOG or Jobname.LGW), you will observe that Name is blank, Type=DEL, and MIN is an integer number. In this case, the GUI has assigned a value of MIN that corresponds to the location of a chosen variable name in the dialog box's list. It is not intended that you type in such a location value for MIN in an ANSYS session. However, a file that contains a GUI-generated OPVAR command of this form can be used for batch input or for use with the /INPUT command.

Maximum value for this parameter. Required for Type=DV and ignored for Type=OBJ or DEL. For Type=SV, there will be no upper limit if MAX is left blank, but if MAX = 0.0, the upper limit is zero.

For Type=DV and OBJ, acceptable change between loops for convergence; defaults to 0.01*(current value) for OBJ and 0.01*(MAX-MIN) for DV. For Type=SV, defines feasibility tolerance. For double-sided SV limits (MAX and MIN specified), the default is 0.01*(MAX-MIN). For a single-sided SV limit (MAX or MIN specified), the default is 0.01*(specified limit) or, if the absolute value of the limit is < 1, the default is 0.01*(current SV value). TOLER is ignored for Type=DEL.

Notes

Specifies the parameters to be treated as optimization variables. Variable constraints (MIN and MAX) and tolerances (TOLER) are also specified on this command. If the specified parameter (Name) does not exist at the time OPVAR is issued, the OPVAR command defines that parameter and assigns a value of zero to it. Up to 60 DV and 100 SV parameters are allowed.

Main Menu >Design Opt >Design Variables

Main Menu >Design Opt >Objective

Main Menu >Design Opt >State Variables

Specifies "Output options" as the subsequent status topic.

SOLUTION:Status

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This is a status [STAT] topic command. Status topic commands are generated by the GUI and will appear in the log file (Jobname.LOG) if status is requested for some items under Utility Menu>List>Status. This command will be immediately followed by a STAT command, which will report the status for the specified topic.

If entered directly into the program, the STAT command should immediately follow this command.

Utility Menu >List >Status >Solution >Output Options

Controls the solution printout.

SOLUTION:MiscLoads

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Item for print control:

BASIC - Basic quantities (nodal DOF solution, nodal reaction loads, and element solution; includes participation factors for a reduced modal analysis) (default).

NSOL - Nodal DOF solution.

RSOL - Nodal reaction loads.

ESOL - Element solution.

NLOAD - Element nodal loads.

VENG - Element energies.

ALL - All of the above solution items.

Print solution for this item every FREQth (and the last) substep of each load step. If -N, print up to N equally spaced solutions (for automatic time stepping). If NONE, suppress all printout for this item for this load step. If ALL, print solution for this item for every substep. If LAST, print solution for this item only for the last substep of each load step. For a modal analysis, use NONE or ALL.

Name of the component, created with the CM command, defining the selected set of nodes or elements for which this specification is active. If blank, the set is all entities. Note, the component named must be of the same type as the item, i.e. nodal or element. A component name is not allowed with the BASIC or ALL labels.

Notes

Controls the solution items to be printed, the frequency with which they are printed (in static, transient, or full harmonic analyses), and the set of nodes or elements to which this specification applies. An item is associated with either a node (NSOL and RFORCE items) or an element (all of the remaining items). The specifications are processed in the order that they are input. Up to 50 specifications (OUTPR and OUTRES commands combined) may be defined. Use OUTPR,STAT to list the current specifications and use OUTPR,ERASE to erase all the current specifications.

As described above, OUTPR writes some or all items (depending on analysis type) for all elements. To restrict the solution printout, use OUTPR to selectively suppress (FREQ=NONE) the writing of solution data, or first suppress the writing of all solution data (OUTPR,ALL,NONE) and then selectively turn on the writing of solution data with subsequent OUTPR commands.

This command is also valid in PREP7.

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

Main Menu >Solution >Output Ctrls >Solu Printout

Redirects text output to a file or to the screen.

SESSION:RunControls

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Filename (32 character maximum) to which text output will be redirected (defaults to Jobname if Ext and/or Dir is specified). For interactive runs, Fname=TERM (or blank) redirects output to the screen. For batch runs, Fname=blank (with all remaining command arguments blank) redirects output to the default system output file.

Filename extension (optional; 8 character maximum).

Directory name (64 character maximum). Defaults to current directory.

Location within a file to which output will be written:

(blank) - Output is written starting at the top of the file (default).

APPEND - Output is appended to the existing file.

Notes

Text output includes responses to every command and GUI function, notes, warnings, errors, and other informational messages. Upon execution of /OUTPUT,Fname,Ext..., all subsequent text output is redirected to the file Fname.Ext. To redirect output back to the default location, issue /OUTPUT (no arguments). Note that when using the GUI, output from list operations [NLIST, DLIST, etc.] is always sent to a list window regardless of the /OUTPUT setting. The output can then be saved on a file or copied to the /OUTPUT location using the File menu in the list window.

This command is valid in any processor.

Utility Menu >File >Switch Output to >File

Utility Menu >File >Switch Output to >Output Window

Controls the solution data written to the database.

SOLUTION:MiscLoads

	Mp Me St -- LP Th E3 E2 -- PP ED

Item for database and file write control:

ALL - All solution items (default).

BASIC - Write only NSOL, RSOL, NLOAD, STRS, FGRAD, and FFLUX records to the results file and database.

NSOL - Nodal DOF solution.

RSOL - Nodal reaction loads.

ESOL - Element solution (includes all of the following items).

NLOAD - Element nodal loads and input constraint and force loads (also used in conjunction with the PRRFOR command to calculate POST1 reaction loads).

STRS - Element nodal stresses.

EPEL - Element elastic strains.

EPTH - Element thermal, initial, and swelling strains.

EPPL - Element plastic strains.

EPCR - Element creep strains.

FGRAD - Element nodal gradients.

FFLUX - Element nodal fluxes.

MISC - Element miscellaneous data (see the SMISC and NMISC items of the ETABLE command).

If FREQ = N, write solution for this item every Nth (and the last) substep of each load step. If -FREQ, write up to N equally spaced solutions (for automatic loading). If FREQ = NONE, suppress all writing for this item for this load step. If ALL, write solution for this item for every substep (default for ANTYPE=HARMIC and any expansion pass [EXPASS,ON]). If LAST, write solution for this item only for the last substep of each load step (default for ANTYPE=STATIC and TRANS). If running a heat transfer analysis and FREQ = %array%, where array is the name of an Nx1x1 dimensional array parameter defining N key times, then the data for the specified Item is written at those key times. Keytimes in the array parameter must be in ascending order. The time-step size is not re-set at the keytimes unless the time points coincide with those defined using the TSRES command. FREQ=%array% is valid only if the selected set of elements consist of some combination of thermal (only), thermal-electric, thermal surface effect, or thermal-fluid pipe elements. See *DIM for more information on defining array parameters.

Name of the component, created with the CM command, defining the selected set of elements or nodes for which this specification is active. If blank, the set is all entities. A component name is not allowed with the ALL, BASIC, or RSOL labels.

Notes

Controls the solution items to be written to the database (and the reduced displacement and results files), the frequency with which they are written (in static, transient, or full harmonic analyses), and the set of elements or nodes to which this specification applies. An item is associated with either a node (NSOL and RSOL items) or an element (all of the remaining items). The specifications are processed in the order that they are input. Up to 50 specifications (OUTPR and OUTRES commands combined) may be defined. Use OUTRES,STAT to list the current specifications and use OUTRES,ERASE to erase all the current specifications.

As described above, the program default for writing out solution data is to write some or all items (depending on analysis type) for all elements. To restrict the solution data that is written out, use OUTRES to selectively suppress (FREQ=NONE) the writing of solution data, or first suppress the writing of all solution data (OUTRES,ALL,NONE) and then selectively turn on the writing of solution data with subsequent OUTRES commands.

The boundary conditions (constraints and force loads) are written to the results file only if either nodal or reaction loads are written (NLOAD or RSOL items).

If you use an array of time values (FREQ=%array%) in conjunction with a time step reset array (TSRES command), you need to ensure that any FREQ array time values exceed the nearest TSRES array value by the initial time step increment specified with DELTIM,DTIME or NSUBST,NSBSTP. For example, if you have a FREQ array with the values 1.5, 2, 10, 14.1, and 15, and a TSRES array with the values 1, 2, 10, 14, and 16 (where the time stepping would restart at those values), and you specify an initial time time step increment of DTIME=.2, the program will stop. In this example, the requested FREQ array value of 14.1 does not exist, because the TSRES value specified that the time step be reset at 14 and increment at an interval of .2; therefore, the first available time for the FREQ array would be 14.2.

This command is also valid in PREP7.

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

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