chrono::ChTimestepperLeapfrog Class Reference
Description
Performs a step of a Leapfrog explicit integrator.
This is a symplectic method, with 2nd order accuracy, at least when F depends on positions only. Note: uses last step acceleration: changing or resorting the numbering of DOFs will invalidate it. Suggestion: use the ChTimestepperEulerSemiImplicit, it gives the same accuracy with better performance.
#include <ChTimestepper.h>
Inheritance diagram for chrono::ChTimestepperLeapfrog:
Collaboration diagram for chrono::ChTimestepperLeapfrog:
Public Member Functions | |
| ChTimestepperLeapfrog (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::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 | |
| ChStateDelta | Aold |
| 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::ChExplicitTimestepper | |
| ChLumpingParms * | lumping_parameters |
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()
|
overridevirtual |
Performs an integration timestep.
- Parameters
-
dt timestep to advance
Implements chrono::ChTimestepper.
◆ GetType()
|
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
