chrono::ChTimestepperTrapezoidalLinearized Class Reference

Description

Performs a step of trapezoidal implicit linearized for II order systems.

#include <ChTimestepper.h>

Inheritance diagram for chrono::ChTimestepperTrapezoidalLinearized:

Collaboration diagram for chrono::ChTimestepperTrapezoidalLinearized:

Public Member Functions
	ChTimestepperTrapezoidalLinearized (ChIntegrableIIorder *intgr=nullptr)
	Constructors (default empty)
virtual Type	GetType () const override
	Return type of the integration method. More...
virtual void	Advance (const double dt) override
	Performs an integration timestep. More...
virtual void	ArchiveOut (ChArchiveOut &archive) override
	Method to allow serialization of transient data to archives.
virtual void	ArchiveIn (ChArchiveIn &archive) override
	Method to allow de-serialization of transient data from archives.
Public Member Functions inherited from chrono::ChTimestepperIIorder
	ChTimestepperIIorder (ChIntegrableIIorder *intgr=nullptr)
	Constructor.
virtual	~ChTimestepperIIorder ()
	Destructor.
virtual ChState &	GetStatePos ()
	Access the state, position part, at current time.
virtual ChStateDelta &	GetStateVel ()
	Access the state, speed part, at current time.
virtual ChStateDelta &	GetStateAcc ()
	Access the acceleration, at current time.
virtual void	SetIntegrable (ChIntegrableIIorder *intgr)
	Set the integrable object.
Public Member Functions inherited from chrono::ChTimestepper
	ChTimestepper (ChIntegrable *intgr=nullptr)
	Constructor.
virtual	~ChTimestepper ()
	Destructor.
virtual ChVectorDynamic &	GetLagrangeMultipliers ()
	Access the lagrangian multipliers, if any.
virtual void	SetIntegrable (ChIntegrable *intgr)
	Set the integrable object.
ChIntegrable *	GetIntegrable ()
	Get the integrable object.
virtual double	GetTime () const
	Get the current time.
virtual void	SetTime (double mt)
	Set the current time.
void	SetVerbose (bool verb)
	Turn on/off logging of messages.
Public Member Functions inherited from chrono::ChImplicitIterativeTimestepper
void	SetMaxIters (int iters)
	Set the max number of iterations using the Newton Raphson procedure.
double	GetMaxIters ()
	Get the max number of iterations using the Newton Raphson procedure.
void	SetRelTolerance (double rel_tol)
	Set the relative tolerance. More...
void	SetAbsTolerances (double abs_tolS, double abs_tolL)
	Set the absolute tolerances. More...
void	SetAbsTolerances (double abs_tol)
	Set the absolute tolerances. More...
unsigned int	GetNumIterations () const
	Return the number of iterations.
unsigned int	GetNumSetupCalls () const
	Return the number of calls to the solver's Setup function.
unsigned int	GetNumSolveCalls () const
	Return the number of calls to the solver's Solve function.

Protected Attributes
ChStateDelta	Dv
ChVectorDynamic	Dl
ChState	Xnew
ChStateDelta	Vnew
ChVectorDynamic	R
ChVectorDynamic	Rold
ChVectorDynamic	Qc
Protected Attributes inherited from chrono::ChTimestepperIIorder
ChState	X
ChStateDelta	V
ChStateDelta	A
Protected Attributes inherited from chrono::ChTimestepper
ChIntegrable *	integrable
double	T
ChVectorDynamic	L
bool	verbose
bool	Qc_do_clamp
double	Qc_clamping
Protected Attributes inherited from chrono::ChImplicitIterativeTimestepper
unsigned int	maxiters
	maximum number of iterations
double	reltol
	relative tolerance
double	abstolS
	absolute tolerance (states)
double	abstolL
	absolute tolerance (Lagrange multipliers)
unsigned int	numiters
	number of iterations
unsigned int	numsetups
	number of calls to the solver's Setup function
unsigned int	numsolves
	number of calls to the solver's Solve function

Additional Inherited Members
Public Types inherited from chrono::ChTimestepper
enum	Type {   EULER_IMPLICIT_LINEARIZED, EULER_IMPLICIT_PROJECTED, EULER_IMPLICIT, TRAPEZOIDAL,   TRAPEZOIDAL_LINEARIZED, HHT, HEUN, RUNGEKUTTA45,   EULER_EXPLICIT, LEAPFROG, NEWMARK, CUSTOM }
	Available methods for time integration (time steppers).
Static Public Member Functions inherited from chrono::ChTimestepper
static std::string	GetTypeAsString (Type type)
	Return the integrator type as a string.

Member Function Documentation

Advance()

void chrono::ChTimestepperTrapezoidalLinearized::Advance ( const double  dt )

overridevirtual

Performs an integration timestep.

Parameters

dt	timestep to advance

Implements chrono::ChTimestepper.

GetType()

virtual Type chrono::ChTimestepperTrapezoidalLinearized::GetType ( ) const

inlineoverridevirtual

Return type of the integration method.

Default is CUSTOM. Derived classes should override this function.

Reimplemented from chrono::ChTimestepper.

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

• /builds/uwsbel/chrono/src/chrono/timestepper/ChTimestepper.h
• /builds/uwsbel/chrono/src/chrono/timestepper/ChTimestepper.cpp