Ikarus::DisplacementControl Struct Reference

Structure representing the subsidiary function for the displacement control method. More...

#include <ikarus/controlroutines/pathfollowingfunctions.hh>

Public Member Functions
	DisplacementControl (std::vector< int > p_controlledIndices)
	Constructor for DisplacementControl. More...
void	operator() (SubsidiaryArgs &args) const
	Evaluates the subsidiary function for the displacement control method. More...
template<typename NLO >
void	initialPrediction (NLO &nonLinearOperator, SubsidiaryArgs &args)
	Performs initial prediction for the displacement control method. More...
template<typename NLO >
void	intermediatePrediction (NLO &nonLinearOperator, SubsidiaryArgs &args)
	Performs intermediate prediction for the displacement control method. More...
constexpr auto	name () const
	The name of the PathFollowing method. More...

Detailed Description

The equation for the load control method reads

\[ f(\mathrm{D}\mathbf{D}, \mathrm{D} \lambda)= ||\mathrm{D}\mathbf{D}|| - \hat{s}, \]

where \(\mathrm{D}\mathbf{D}\) is the increment of the solution vector and \(\mathrm{D} \lambda\) is the load factor increment. The scalar \(\hat{s} \) defines the requested size of the step.

Constructor & Destructor Documentation

DisplacementControl()

Ikarus::DisplacementControl::DisplacementControl ( std::vector< int >  p_controlledIndices )

inlineexplicit

Parameters

p_controlledIndices

Vector containing the indices of the controlled degrees of freedom.

Member Function Documentation

initialPrediction()

template<typename NLO >

void Ikarus::DisplacementControl::initialPrediction ( NLO &  nonLinearOperator, SubsidiaryArgs &  args  )

inline

This method initializes the prediction step for the displacement control method.

Template Parameters

NLO	Type of the nonlinear operator.

Parameters

nonLinearOperator	The nonlinear operator.
args	The subsidiary function arguments.

intermediatePrediction()

template<typename NLO >

void Ikarus::DisplacementControl::intermediatePrediction ( NLO &  nonLinearOperator, SubsidiaryArgs &  args  )

inline

This method updates the prediction step for the displacement control method.

Template Parameters

NLO	Type of the nonlinear operator.

Parameters

nonLinearOperator	The nonlinear operator.
args	The subsidiary function arguments.

name()

constexpr auto Ikarus::DisplacementControl::name ( ) const

inlineconstexpr

operator()()

void Ikarus::DisplacementControl::operator() ( SubsidiaryArgs &  args ) const

inline

This method calculates the subsidiary function value and its derivatives for the given arguments.

Parameters

args	The subsidiary function arguments.

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The documentation for this struct was generated from the following file:

• pathfollowingfunctions.hh