DisplacementControl is an algorithmic class for perfroming a static analysis using the arc length scheme, that is within a load step the follwing constraint is enforced: i=1 delta U^T delta U + alpha^2 delta lambda^2 = delta s^2 i>1 dU^T delta U + alpha^2 dLambda delta lambda = 0 where dU is change in nodal displacements for step, dLambda is change in applied load and DisplacementControl is a control parameter. More...

#include <DisplacementControl.h>

Inheritance diagram for XC::DisplacementControl:

Public Member Functions
int	newStep (void)

int	commit (void)
	Consuma los valores calculados hasta ahora.

int	update (const Vector &deltaU)

int	domainChanged (void)
	Hace los cambios oportunos cuando se ha producido un cambio en el domain.

void	setNodeTag (const int &tag)

int	getNodeTag (void) const

void	setDof (const int &dof)

int	getDof (void) const

void	setIncrement (const double &)

double	getIncrement (void) const

int	sendSelf (CommParameters &)

int	recvSelf (const CommParameters &)

void	Print (std::ostream &s, int flag=0)

Public Member Functions inherited from XC::BaseControl
double	factor (void) const

Public Member Functions inherited from XC::StaticIntegrator
virtual int	formEleTangent (FE_Element *theEle)
	Asks the element being passed as parameter to build its tangent stiffness matrix.

virtual int	formEleResidual (FE_Element *theEle)

virtual int	formNodTangent (DOF_Group *theDof)

virtual int	formNodUnbalance (DOF_Group *theDof)

Public Member Functions inherited from XC::IncrementalIntegrator
virtual int	formTangent (int statusFlag=CURRENT_TANGENT)
	Builds tangent stiffness matrix.

virtual int	formUnbalance (void)
	Builds the unbalanced load vector (right hand side of the equation).

virtual int	newStep (double deltaT)
	??

virtual int	revertToLastStep (void)

virtual int	initialize (void)

virtual int	revertToStart ()

virtual int	getLastResponse (Vector &result, const ID &id)
	Returns the response on the DOFs being passed as parameter. More...

Public Member Functions inherited from XC::MovableObject
	MovableObject (int classTag, int dbTag)
	Constructor.

	MovableObject (int classTag)
	Constructor.

	MovableObject (const MovableObject &otro)
	Copy constructor.

MovableObject &	operator= (const MovableObject &otro)
	Operacdor asignación.

int	getClassTag (void) const
	Returns the tag de la clase.

int	getDbTag (void) const
	Returns the tag para la database.

int	getDbTag (CommParameters &)
	Returns the tag para la database.

void	setDbTag (int dbTag)
	Asigna el tag para la database.

void	setDbTag (CommParameters &)
	Asigna, sólo si es preciso, el tag para la database.

virtual int	setParameter (const std::vector< std::string > &argv, Parameter &param)

virtual int	updateParameter (int parameterID, Information &info)

virtual int	activateParameter (int parameterID)

virtual int	setVariable (const std::string &variable, Information &)
	Returns the identificador de la variable cuyo nombre being passed as parameter.

virtual int	getVariable (const std::string &variable, Information &)

Public Member Functions inherited from XC::DistributedBase
	DistributedBase (void)
	Constructor.

virtual DbTagData &	getDbTagData (void) const
	Returns a vector to store class dbTags.

const int &	getDbTagDataPos (const int &i) const
	Returns the data at the i-th position.

void	setDbTagDataPos (const int &i, const int &v)
	Sets the data at the i-th position.

void	inicComm (const int &dataSize) const
	Initializes communication.

Protected Member Functions
const Domain *	getDomainPtr (void) const
	Returns a pointer to the domain.

Domain *	getDomainPtr (void)
	Returns a pointer to the domain.

	DisplacementControl (SoluMethod *)
	Constructor.

	DisplacementControl (SoluMethod *, int node, int dof, double increment, int numIncrStep, double minIncrement, double maxIncrement)
	Constructor.

Integrator *	getCopy (void) const

Protected Member Functions inherited from XC::DispBase
int	sendData (CommParameters &)
	Send object members through the channel being passed as parameter.

int	recvData (const CommParameters &)
	Receives object members through the channel being passed as parameter.

	DispBase (SoluMethod *, int classTag, const int &numIncr=1)
	Constructor.

Protected Member Functions inherited from XC::BaseControl
int	sendData (CommParameters &)
	Send object members through the channel being passed as parameter.

int	recvData (const CommParameters &)
	Receives object members through the channel being passed as parameter.

void	setup_numIncr (const int &)

	BaseControl (SoluMethod *, int classTag, int numIncr=1)
	Constructor.

Protected Member Functions inherited from XC::StaticIntegrator
	StaticIntegrator (SoluMethod *, int classTag)

Protected Member Functions inherited from XC::IncrementalIntegrator
LinearSOE *	getLinearSOEPtr (void)
	Returns a pointer to the system of equations de eigenvalues.

const LinearSOE *	getLinearSOEPtr (void) const
	Returns a pointer to the system of equations de eigenvalues.

virtual int	formNodalUnbalance (void)
	Builds the nodal unbalanced load vector.

virtual int	formElementResidual (void)
	Forma el unbalanced load vector of the elements.

	IncrementalIntegrator (SoluMethod *, int classTag)
	Constructor.

Protected Member Functions inherited from XC::Integrator
SoluMethod *	getSoluMethod (void)
	Returns a pointer to the solution method that owns this object.

const SoluMethod *	getSoluMethod (void) const
	Returns a const pointer to the solution method that owns this object.

void	applyLoadModel (double newTime)

int	updateModel (void)

int	updateModel (double newTime, double dT)

int	commitModel (void)

double	getCurrentModelTime (void)

void	setCurrentModelTime (const double &t)

void	setRayleighDampingFactors (const RayleighDampingFactors &rF)

int	sendData (CommParameters &)
	Send object members through the channel being passed as parameter.

int	recvData (const CommParameters &)
	Receives object members through the channel being passed as parameter.

virtual AnalysisModel *	getAnalysisModelPtr (void)
	Returns a pointer to the analysis model.

virtual const AnalysisModel *	getAnalysisModelPtr (void) const
	Returns a pointer to the analysis model.

	Integrator (SoluMethod *, int classTag)
	Constructor.

Protected Attributes
int	theNode
	the node that is being followed

int	theDof
	the dof at the node being followed

double	theIncrement
	deltaU at step (i)

int	theDofID
	the system level id of the dof being followed

double	minIncrement

double	maxIncrement

Protected Attributes inherited from XC::DispBase
IntegratorVectors	vectores

Protected Attributes inherited from XC::BaseControl
double	specNumIncrStep
	Jd factor relating load increment at subsequent time steps. (optional, default: 1.0)

double	numIncrLastStep
	J(i-1).

Protected Attributes inherited from XC::IncrementalIntegrator
int	statusFlag

Friends
class	SoluMethod

Detailed Description

DisplacementControl is an algorithmic class for perfroming a static analysis using the arc length scheme, that is within a load step the follwing constraint is enforced: i=1 delta U^T delta U + alpha^2 delta lambda^2 = delta s^2 i>1 dU^T delta U + alpha^2 dLambda delta lambda = 0 where dU is change in nodal displacements for step, dLambda is change in applied load and DisplacementControl is a control parameter.

The documentation for this class was generated from the following files:

/usr/local/src/prg/xc/src/solution/analysis/integrator/static/DisplacementControl.h
/usr/local/src/prg/xc/src/solution/analysis/integrator/static/DisplacementControl.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description