Control Routines

Routines to follow a non-linear solution curve. More...

Collaboration diagram for Control Routines:

Files
file	adaptivestepsizing.hh
	Contains the AdaptiveStepSizing namespace with strategies for adaptive step sizing.
file	controlinfos.hh
	Defines the ControlInformation structure for storing control results.
file	loadcontrol.inl
	Implementation of the run function.
file	pathfollowing.inl
	Implementation of the run function.

Classes
class	Ikarus::LoadControl< NonLinearSolver >
	The LoadControl control routine increases the last parameter of a nonlinear operator and calls a nonlinear solver.This class represents the LoadControl control routine. It increments the last parameter of a nonlinear operator and utilizes a nonlinear solver, such as Newton's method, to solve the resulting system at each step. More...
class	Ikarus::PathFollowing< NonLinearSolver, PathFollowingType, AdaptiveStepSizing >
	The PathFollowing control routine for path-following analysis. More...
struct	Ikarus::SubsidiaryArgs
	Structure containing arguments for subsidiary functions. More...
struct	Ikarus::ArcLength
	Structure representing the subsidiary function for the standard arc-length method. More...
struct	Ikarus::LoadControlSubsidiaryFunction
	Structure representing the subsidiary function for the load control method. More...
struct	Ikarus::DisplacementControl
	Structure representing the subsidiary function for the displacement control method. More...

Functions
template<typename NonLinearOperator >
void	Ikarus::ArcLength::initialPrediction (NonLinearOperator &nonLinearOperator, SubsidiaryArgs &args)
	Performs the initial prediction for the standard arc-length method. More...

Detailed Description

Function Documentation

initialPrediction()

template<typename NonLinearOperator >

void Ikarus::ArcLength::initialPrediction ( NonLinearOperator &  nonLinearOperator, SubsidiaryArgs &  args  )

inline

This method initializes the prediction step for the standard arc-length method it computes \(\psi\) and computes initial \(\mathrm{D}\mathbf{D}\) and \(\mathrm{D} \lambda\).

Template Parameters

NonLinearOperator

Type of the nonlinear operator.

Parameters

nonLinearOperator	The nonlinear operator.
args	The subsidiary function arguments.