Class for defining how the static/dynamic analysis between two steps is going to be performed. More...

#include <Integrator.hpp>

Inheritance diagram for Integrator:

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Public Member Functions
	Integrator (const std::shared_ptr< Mesh > &mesh)
	Creates a Integrator object. More...

virtual	~Integrator ()=0
	Destroys this Integrator object. More...

virtual void	Initialize (std::shared_ptr< Mesh > &mesh)=0
	Initialize model matrices. More...

virtual void	SetLoadCombination (std::shared_ptr< LoadCombo > &combo)=0
	Set the load combination. More...

virtual void	SetAlgorithm (std::shared_ptr< Algorithm > &algorithm)=0
	Sets the integrator for this algorithm. More...

virtual const Eigen::VectorXd &	GetDisplacements ()=0
	Gets the displacement vector. More...

virtual const Eigen::VectorXd &	GetVelocities ()=0
	Gets the velocity vector. More...

virtual const Eigen::VectorXd &	GetAccelerations ()=0
	Gets the acceleration vector. More...

virtual const Eigen::VectorXd &	GetPMLHistoryVector ()=0
	Gets the perfectly-matched layer history vector. More...

virtual bool	ComputeNewStep (std::shared_ptr< Mesh > &mesh, unsigned int k=0)=0
	Computes a new time step. More...

virtual Eigen::VectorXd	ComputeReactionForce (std::shared_ptr< Mesh > &mesh, unsigned int k=0)=0
	Gets the reaction force ins this step. More...

virtual Eigen::VectorXd	ComputeProgressiveForce (std::shared_ptr< Mesh > &mesh, unsigned int k=0)=0
	Gets the external force vector from previous analysis. More...

virtual void	ComputeSupportMotionVector (std::shared_ptr< Mesh > &mesh, Eigen::VectorXd &Feff, double factor=1.00, unsigned int k=0)=0
	Gets the incremental nodal support motion vector. More...

virtual void	ComputeEffectiveForce (std::shared_ptr< Mesh > &mesh, Eigen::VectorXd &Feff, double factor=1.00, unsigned int k=0)=0
	Gets the effective force associated to the integrator. More...

virtual void	ComputeEffectiveStiffness (std::shared_ptr< Mesh > &mesh, Eigen::SparseMatrix< double > &Keff)=0
	Gets the effective stiffness associated to the integrator. More...

Protected Attributes
Eigen::VectorXd	SupportMotion
	Nodal support motion vector. More...

Eigen::SparseMatrix< double >	Total2FreeMatrix
	Operator that enforced restrain/constraint. More...

Detailed Description

Class for defining how the static/dynamic analysis between two steps is going to be performed.

See also: QuasiStatic.hpp CentralDifference.hpp NewmarkBeta.hpp

Constructor & Destructor Documentation

◆ Integrator()

Integrator::Integrator ( const std::shared_ptr< Mesh > & mesh )

Creates a Integrator object.

Parameters

mesh	Pointer to the Mesh container to extract Node and Element.

◆ ~Integrator()

virtual Integrator::~Integrator ( )

pure virtual

Destroys this Integrator object.

Member Function Documentation

◆ ComputeEffectiveForce()

virtual void Integrator::ComputeEffectiveForce	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::VectorXd &	Feff,
		double	factor = `1.00`,
		unsigned int	k = `0`
	)

pure virtual

Gets the effective force associated to the integrator.

Parameters

mesh	Pointer to the Mesh object where Node and Element are stored.
Feff	Vector that stores the effective force.
factor	The incremental load factor.
k	The time step number to be solved.

See also: Assembler::ComputeInternalForceVector(), Assembler::ComputeExternalForceVector().

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ ComputeEffectiveStiffness()

virtual void Integrator::ComputeEffectiveStiffness	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::SparseMatrix< double > &	Keff
	)

pure virtual

Gets the effective stiffness associated to the integrator.

Parameters

mesh	Pointer to the Mesh object where Node and Element are stored.
Keff	Matrix that stores the effective stiffness.

See also: Assembler::ComputeMassMatrix(), Assembler::ComputeStiffnessMatrix(), Assembler::ComputeDampingMatrix().

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ ComputeNewStep()

virtual bool Integrator::ComputeNewStep	(	std::shared_ptr< Mesh > &	mesh,
		unsigned int	k = `0`
	)

pure virtual

Computes a new time step.

Parameters

mesh	The finite element Mesh object.
k	The time step number to be solved.

Returns: Whether or not the Integrator was successfully applied.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ ComputeProgressiveForce()

virtual Eigen::VectorXd Integrator::ComputeProgressiveForce	(	std::shared_ptr< Mesh > &	mesh,
		unsigned int	k = `0`
	)

pure virtual

Gets the external force vector from previous analysis.

Parameters

mesh	Pointer to the Mesh object where Node and Element are stored.
k	The time step number to be solved.

See also: Assembler::ComputeExternalForceVector().

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ ComputeReactionForce()

virtual Eigen::VectorXd Integrator::ComputeReactionForce	(	std::shared_ptr< Mesh > &	mesh,
		unsigned int	k = `0`
	)

pure virtual

Gets the reaction force ins this step.

Parameters

mesh	Pointer to the Mesh object where Node are stored.
k	The time step number to be solved.

Returns: Vector with the reaction forces and external forces.

Note: More details can be found at Reaction.

See also: Node::GetReaction(), Assembler::ComputeDynamicInternalForceVector().

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ ComputeSupportMotionVector()

virtual void Integrator::ComputeSupportMotionVector	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::VectorXd &	Feff,
		double	factor = `1.00`,
		unsigned int	k = `0`
	)

pure virtual

Gets the incremental nodal support motion vector.

Parameters

mesh	Pointer to the Mesh object where Node are stored.
Feff	The effective force vector to incorporate support motion forces.
factor	The incremental load factor.
k	The time step number to be solved.

See also: Node::GetSupportMotion(), Assembler::ComputeSupportMotionIncrement().

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ GetAccelerations()

virtual const Eigen::VectorXd& Integrator::GetAccelerations ( )

pure virtual

Gets the acceleration vector.

Returns: Vector with the acceleration states at current time step.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ GetDisplacements()

virtual const Eigen::VectorXd& Integrator::GetDisplacements ( )

pure virtual

Gets the displacement vector.

Returns: Vector with the displacement states at current time step.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ GetPMLHistoryVector()

virtual const Eigen::VectorXd& Integrator::GetPMLHistoryVector ( )

pure virtual

Gets the perfectly-matched layer history vector.

Returns: Vector with the PML history states at current time step.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ GetVelocities()

virtual const Eigen::VectorXd& Integrator::GetVelocities ( )

pure virtual

Gets the velocity vector.

Returns: Vector with the velocity states at current time step.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ Initialize()

virtual void Integrator::Initialize ( std::shared_ptr< Mesh > & mesh )

pure virtual

Initialize model matrices.

Parameters

mesh	Pointer to the Mesh container to extract Node and Element.

Note: This function computes matrices that are constant through the analysis.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ SetAlgorithm()

virtual void Integrator::SetAlgorithm ( std::shared_ptr< Algorithm > & algorithm )

pure virtual

Sets the integrator for this algorithm.

Parameters

algorithm Pointer to the Algorithm to obtain the effective stiffness and force.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

◆ SetLoadCombination()

virtual void Integrator::SetLoadCombination ( std::shared_ptr< LoadCombo > & combo )

pure virtual

Set the load combination.

Parameters

combo Pointer to the LoadCombo to be simulated.

Implemented in CompositeBathe, NewmarkBeta, ExtendedNewmarkBeta, CentralDifference, and QuasiStatic.

Member Data Documentation

◆ SupportMotion

Eigen::VectorXd Integrator::SupportMotion

protected

Nodal support motion vector.

◆ Total2FreeMatrix

Eigen::SparseMatrix<double> Integrator::Total2FreeMatrix

protected

Operator that enforced restrain/constraint.

See also: Mesh::GetTotalToFreeMatrix().

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Integrator()

◆ ~Integrator()

Member Function Documentation

◆ ComputeEffectiveForce()

◆ ComputeEffectiveStiffness()

◆ ComputeNewStep()

◆ ComputeProgressiveForce()

◆ ComputeReactionForce()

◆ ComputeSupportMotionVector()

◆ GetAccelerations()

◆ GetDisplacements()

◆ GetPMLHistoryVector()

◆ GetVelocities()

◆ Initialize()

◆ SetAlgorithm()

◆ SetLoadCombination()

Member Data Documentation

◆ SupportMotion

◆ Total2FreeMatrix