SetDesignConvergenceParameters Method

Specify as a percent a relative amount that the design objective can deviate at convergence. The default value is 2.5. The valid range of values is 0 to 100.

The design is converged when the relative percentage change in the design objective value is less than the specified relative convergence value for two consecutive iterations. Also, when there is no design limit whose maximum violation has been exceeded in the last iteration

Description

Set Design Convergence Parameters

Syntax

Visual Basic
Public Sub SetDesignConvergenceParameters( _ ByVal dMaxCnstrViolation As Double, _ ByVal dRelativeConvergence As Double, _ ByVal dAbsoluteConvergence As Double, _ ByVal dPerturbationFraction As Double _ )

Visual Basic

Public Sub SetDesignConvergenceParameters( _
   ByVal dMaxCnstrViolation As Double, _
   ByVal dRelativeConvergence As Double, _
   ByVal dAbsoluteConvergence As Double, _
   ByVal dPerturbationFraction As Double _
)

Parameters

dMaxCnstrViolation

Specify as a percent the amount by which the design limit values are allowed to exceed the specified limit value.

dRelativeConvergence

Specify as a percent a relative amount that the design objective can deviate at convergence. The default value is 2.5. The valid range of values is 0 to 100.

dAbsoluteConvergence

Specify as a fractional number the actual amount that the design objective can deviate at convergence. The default value is 0.001. The value can be any fractional number greater than or equal to zero.

dPerturbationFraction

Specify as a percent a relative amount by which design variables can change during a sampling period in the first few iterations of the optimization. The default value is 0.200 (that is, 20%).