Description
Base class for timesteppers, i.e., time integrators that can advance a system state.
It operates on systems inherited from ChIntegrable.
#include <ChTimestepper.h>


Public Types | |
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). | |
Public Member Functions | |
ChTimestepper (ChIntegrable *mintegrable=nullptr) | |
Constructor. | |
virtual | ~ChTimestepper () |
Destructor. | |
virtual Type | GetType () const |
Return type of the integration method. More... | |
virtual void | Advance (const double dt)=0 |
Performs an integration timestep. More... | |
virtual ChVectorDynamic & | get_L () |
Access the lagrangian multipliers, if any. | |
virtual void | SetIntegrable (ChIntegrable *mintegrable) |
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 mverbose) |
Turn on/off logging of messages. | |
void | SetQcDoClamp (bool mdc) |
Turn on/off clamping on the Qcterm. | |
void | SetQcClamping (double mcl) |
Turn on/off clamping on the Qcterm. | |
virtual void | ArchiveOUT (ChArchiveOut &marchive) |
Method to allow serialization of transient data to archives. | |
virtual void | ArchiveIN (ChArchiveIn &marchive) |
Method to allow de-serialization of transient data from archives. | |
Protected Attributes | |
ChIntegrable * | integrable |
double | T |
ChVectorDynamic | L |
bool | verbose |
bool | Qc_do_clamp |
double | Qc_clamping |
Member Function Documentation
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pure virtual |
Performs an integration timestep.
- Parameters
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dt timestep to advance
Implemented in chrono::ChTimestepperNewmark, chrono::ChTimestepperTrapezoidalLinearized2, chrono::ChTimestepperTrapezoidalLinearized, chrono::ChTimestepperTrapezoidal, chrono::ChTimestepperEulerImplicitProjected, chrono::ChTimestepperEulerImplicitLinearized, chrono::ChTimestepperEulerImplicit, chrono::ChTimestepperLeapfrog, chrono::ChTimestepperHeun, chrono::ChTimestepperRungeKuttaExpl, chrono::ChTimestepperEulerSemiImplicit, chrono::ChTimestepperEulerExplIIorder, chrono::ChTimestepperEulerExpl, and chrono::ChTimestepperHHT.
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virtual |
Return type of the integration method.
Default is CUSTOM. Derived classes should override this function.
Reimplemented in chrono::ChTimestepperNewmark, chrono::ChTimestepperTrapezoidalLinearized, chrono::ChTimestepperTrapezoidal, chrono::ChTimestepperEulerImplicitProjected, chrono::ChTimestepperEulerImplicitLinearized, chrono::ChTimestepperEulerImplicit, chrono::ChTimestepperLeapfrog, chrono::ChTimestepperHeun, chrono::ChTimestepperRungeKuttaExpl, chrono::ChTimestepperEulerExplIIorder, and chrono::ChTimestepperHHT.