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...
template<typename NLS >
void	operator() (typename NLS::Domain &req, NLS &nonlinearSolver, SubsidiaryArgs &args) const
	Evaluates the subsidiary function for the displacement control method. More...
template<typename NLS >
void	initialPrediction (typename NLS::Domain &req, NLS &nonlinearSolver, SubsidiaryArgs &args)
	Performs initial prediction for the displacement control method. More...
template<typename NLS >
void	intermediatePrediction (typename NLS::Domain &req, NLS &nonlinearSolver, SubsidiaryArgs &args)
	Performs intermediate prediction for the displacement control method. More...
constexpr std::string	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 NLS >

void Ikarus::DisplacementControl::initialPrediction ( typename NLS::Domain &  req, NLS &  nonlinearSolver, SubsidiaryArgs &  args  )

inline

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

Template Parameters

NLS	Type of the nonlinear solver.

Parameters

req	The solution.
nonlinearSolver	The nonlinear solver.
args	The subsidiary function arguments.

intermediatePrediction()

template<typename NLS >

void Ikarus::DisplacementControl::intermediatePrediction ( typename NLS::Domain &  req, NLS &  nonlinearSolver, SubsidiaryArgs &  args  )

inline

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

Template Parameters

NLS	Type of the nonlinear solver.

Parameters

req	The solution.
nonlinearSolver	The nonlinear solver.
args	The subsidiary function arguments.

name()

constexpr std::string Ikarus::DisplacementControl::name ( ) const

inlineconstexpr

operator()()

template<typename NLS >

void Ikarus::DisplacementControl::operator() ( typename NLS::Domain &  req, NLS &  nonlinearSolver, SubsidiaryArgs &  args  ) const

inline

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

Template Parameters

NLS	Type of the nonlinear solver.

Parameters

req	The solution.
nonlinearSolver	The nonlinear solver.
args	The subsidiary function arguments.

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

• pathfollowingfunctions.hh