Description

Performs a step of a Heun explicit integrator. It is like a 2nd Runge Kutta.

#include <ChTimestepper.h>

Inheritance diagram for chrono::ChTimestepperHeun:
Collaboration diagram for chrono::ChTimestepperHeun:

Public Member Functions

 ChTimestepperHeun (ChIntegrable *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::ChTimestepperIorder
 ChTimestepperIorder (ChIntegrable *intgr=nullptr)
 Constructor.
 
virtual ~ChTimestepperIorder ()
 Destructor.
 
virtual ChStateget_Y ()
 Access the state at current time.
 
virtual ChStateDeltaget_dYdt ()
 Access the derivative of state at current time.
 
virtual void SetIntegrable (ChIntegrable *intgr)
 Set the integrable object.
 
- Public Member Functions inherited from chrono::ChTimestepper
 ChTimestepper (ChIntegrable *intgr=nullptr)
 Constructor.
 
virtual ~ChTimestepper ()
 Destructor.
 
virtual ChVectorDynamicget_L ()
 Access the lagrangian multipliers, if any.
 
ChIntegrableGetIntegrable ()
 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.
 
void SetQcDoClamp (bool dc)
 Turn on/off clamping on the Qcterm.
 
void SetQcClamping (double cl)
 Turn on/off clamping on the Qcterm.
 
- Public Member Functions inherited from chrono::ChExplicitTimestepper
void SetDiagonalLumpingON (double Ck=1000, double Cr=0)
 Turn on the diagonal lumping. More...
 
void SetDiagonalLumpingOFF ()
 Turn off the diagonal lumping (default is off)
 
double GetLumpingError ()
 Gets the diagonal lumping error done last time the integrator has been called.
 
void ResetLumpingError ()
 Resets the diagonal lumping error.
 

Protected Attributes

ChState y_new
 
ChStateDelta Dydt1
 
ChStateDelta Dydt2
 
- Protected Attributes inherited from chrono::ChTimestepperIorder
ChState Y
 
ChStateDelta dYdt
 
- Protected Attributes inherited from chrono::ChTimestepper
ChIntegrableintegrable
 
double T
 
ChVectorDynamic L
 
bool verbose
 
bool Qc_do_clamp
 
double Qc_clamping
 
- Protected Attributes inherited from chrono::ChExplicitTimestepper
ChLumpingParmslumping_parameters
 

Additional Inherited Members

- Public Types inherited from chrono::ChTimestepper
enum  Type {
  EULER_IMPLICIT_LINEARIZED = 0, EULER_IMPLICIT_PROJECTED = 1, EULER_IMPLICIT = 2, TRAPEZOIDAL = 3,
  TRAPEZOIDAL_LINEARIZED = 4, HHT = 5, HEUN = 6, RUNGEKUTTA45 = 7,
  EULER_EXPLICIT = 8, LEAPFROG = 9, NEWMARK = 10, CUSTOM = 20
}
 Available methods for time integration (time steppers).
 

Member Function Documentation

◆ Advance()

void chrono::ChTimestepperHeun::Advance ( const double  dt)
overridevirtual

Performs an integration timestep.

Parameters
dttimestep to advance

Implements chrono::ChTimestepper.

◆ GetType()

virtual Type chrono::ChTimestepperHeun::GetType ( ) const
inlineoverridevirtual

Return type of the integration method.

Default is CUSTOM. Derived classes should override this function.

Reimplemented from chrono::ChTimestepper.


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