Class TimeSteppingDirectProjection

Defined in Program listing for file kernel/src/simulationTools/TimeSteppingDirectProjection.hpp

class TimeSteppingDirectProjection : public TimeStepping

Time-Stepping scheme with a direct projection onto the constraint thanks to the GGL augmentation of the system.

For details, have a look on Projected event-capturing time-stepping schemes for nonsmooth mechanical systems with unilateral contact and Coulomb’s friction Vincent Acary Computer Methods in Applied Mechanics and Engineering, Elsevier, 2013, 256, pp. 224-250

Public Functions

TimeSteppingDirectProjection(SP::NonSmoothDynamicalSystem nsds, SP::TimeDiscretisation td, SP::OneStepIntegrator osi, SP::OneStepNSProblem osnspb_velo, SP::OneStepNSProblem osnspb_pos, unsigned int _level = 1)

Constructor with the time-discretisation.

Parameters:

• nsds – the nsds that we want to simulate

• td – a pointer to a timeDiscretisation (linked to the model that owns this simulation)

• osi – a one step integrator

• osnspb_velo – a one step non smooth problem for the velocity formulation

• osnspb_pos – a one step non smooth problem for the position formulation

• _level –

virtual void initializeOneStepNSProblem() override

initialisation specific to TimeStepping for OneStepNSProblem.

inline TimeSteppingDirectProjection()

default constructor

inline unsigned int nbProjectionIteration()

Returns:

the Number of iteration of projection

virtual void advanceToEvent() override

step from current event to next event of EventsManager

virtual void nextStep() override

increment model current time according to User TimeDiscretisation and call SaveInMemory.

virtual void newtonSolve(double criterion, unsigned int maxStep) override

newton algorithm

Parameters:

• criterion – convergence criterion

• maxStep – maximum number of Newton steps