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Tempus::StepperNewmarkImplicitDForm< Scalar > Class Template Reference

Newmark time stepper. More...

#include <Tempus_StepperNewmarkImplicitDForm_decl.hpp>

Inheritance diagram for Tempus::StepperNewmarkImplicitDForm< Scalar >:
Tempus::StepperImplicit< Scalar > Tempus::Stepper< Scalar >

Public Member Functions

 StepperNewmarkImplicitDForm ()
 Default constructor. More...
 
 StepperNewmarkImplicitDForm (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar >> &appModel, Teuchos::RCP< Teuchos::ParameterList > pList=Teuchos::null)
 Constructor. More...
 
virtual Scalar getW_xDotDot_coeff (const Scalar dt) const
 Return W_xDotxDot_coeff = d(xDotDot)/d(x). More...
 
virtual Scalar getAlpha (const Scalar dt) const
 Return alpha = d(xDot)/d(x). More...
 
virtual Scalar getBeta (const Scalar) const
 Return beta = d(x)/d(x). More...
 
void predictVelocity (Thyra::VectorBase< Scalar > &vPred, const Thyra::VectorBase< Scalar > &v, const Thyra::VectorBase< Scalar > &a, const Scalar dt) const
 
void predictDisplacement (Thyra::VectorBase< Scalar > &dPred, const Thyra::VectorBase< Scalar > &d, const Thyra::VectorBase< Scalar > &v, const Thyra::VectorBase< Scalar > &a, const Scalar dt) const
 
void correctVelocity (Thyra::VectorBase< Scalar > &v, const Thyra::VectorBase< Scalar > &vPred, const Thyra::VectorBase< Scalar > &a, const Scalar dt) const
 
void correctDisplacement (Thyra::VectorBase< Scalar > &d, const Thyra::VectorBase< Scalar > &dPred, const Thyra::VectorBase< Scalar > &a, const Scalar dt) const
 
void correctAcceleration (Thyra::VectorBase< Scalar > &a, const Thyra::VectorBase< Scalar > &dPred, const Thyra::VectorBase< Scalar > &d, const Scalar dt) const
 
Basic stepper methods
virtual void setModel (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar >> &appModel)
 
virtual void setObserver (Teuchos::RCP< StepperObserver< Scalar > >=Teuchos::null)
 Set Observer. More...
 
virtual void initialize ()
 Initialize during construction and after changing input parameters. More...
 
virtual void setInitialConditions (const Teuchos::RCP< SolutionHistory< Scalar > > &)
 Set the initial conditions and make them consistent. More...
 
virtual void takeStep (const Teuchos::RCP< SolutionHistory< Scalar >> &solutionHistory)
 Take the specified timestep, dt, and return true if successful. More...
 
virtual Teuchos::RCP
< Tempus::StepperState< Scalar > > 
getDefaultStepperState ()
 Get a default (initial) StepperState. More...
 
virtual Scalar getOrder () const
 
virtual Scalar getOrderMin () const
 
virtual Scalar getOrderMax () const
 
virtual bool isExplicit () const
 
virtual bool isImplicit () const
 
virtual bool isExplicitImplicit () const
 
virtual bool isOneStepMethod () const
 
virtual bool isMultiStepMethod () const
 
virtual OrderODE getOrderODE () const
 
ParameterList methods
void setParameterList (const Teuchos::RCP< Teuchos::ParameterList > &pl)
 
Teuchos::RCP
< Teuchos::ParameterList > 
getNonconstParameterList ()
 
Teuchos::RCP
< Teuchos::ParameterList > 
unsetParameterList ()
 
Teuchos::RCP< const
Teuchos::ParameterList > 
getValidParameters () const
 
Teuchos::RCP
< Teuchos::ParameterList > 
getDefaultParameters () const
 
- Public Member Functions inherited from Tempus::StepperImplicit< Scalar >
virtual void setModel (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &appModel)
 
virtual void setNonConstModel (const Teuchos::RCP< Thyra::ModelEvaluator< Scalar > > &appModel)
 
virtual Teuchos::RCP< const
Thyra::ModelEvaluator< Scalar > > 
getModel ()
 
virtual Teuchos::RCP< const
WrapperModelEvaluator< Scalar > > 
getWrapperModel ()
 
virtual void setSolver (std::string solverName)
 Set solver via ParameterList solver name. More...
 
virtual void setSolver (Teuchos::RCP< Teuchos::ParameterList > solverPL=Teuchos::null)
 Set solver via solver ParameterList. More...
 
virtual void setSolver (Teuchos::RCP< Thyra::NonlinearSolverBase< Scalar > > solver)
 Set solver. More...
 
virtual Teuchos::RCP
< Thyra::NonlinearSolverBase
< Scalar > > 
getSolver () const
 Get solver. More...
 
virtual std::string getStepperType () const
 
const Thyra::SolveStatus< Scalar > solveImplicitODE (const Teuchos::RCP< Thyra::VectorBase< Scalar > > &x)
 Solve problem using x in-place. (Needs to be deprecated!) More...
 
const Thyra::SolveStatus< Scalar > solveImplicitODE (const Teuchos::RCP< Thyra::VectorBase< Scalar > > &x, const Teuchos::RCP< Thyra::VectorBase< Scalar > > &xDot, const Scalar time, const Teuchos::RCP< ImplicitODEParameters< Scalar > > &p)
 Solve implicit ODE, f(x, xDot, t, p) = 0. More...
 
void evaluateImplicitODE (Teuchos::RCP< Thyra::VectorBase< Scalar > > &f, const Teuchos::RCP< Thyra::VectorBase< Scalar > > &x, const Teuchos::RCP< Thyra::VectorBase< Scalar > > &xDot, const Scalar time, const Teuchos::RCP< ImplicitODEParameters< Scalar > > &p)
 Evaluate implicit ODE, f(x, xDot, t, p), residual. More...
 
virtual void setInitialGuess (Teuchos::RCP< const Thyra::VectorBase< Scalar > > initial_guess)
 Pass initial guess to Newton solver (only relevant for implicit solvers) More...
 
virtual void setZeroInitialGuess (bool zIG)
 Set parameter so that the initial guess is set to zero (=True) or use last timestep (=False). More...
 
virtual bool getZeroInitialGuess () const
 
virtual Scalar getInitTimeStep (const Teuchos::RCP< SolutionHistory< Scalar > > &) const
 
virtual bool getEmbedded () const
 
virtual void setUseFSAL (bool a)
 
virtual bool getUseFSAL () const
 
virtual void setICConsistency (std::string s)
 
virtual std::string getICConsistency () const
 
virtual void setICConsistencyCheck (bool c)
 
virtual bool getICConsistencyCheck () const
 
virtual void setStepperXDot (Teuchos::RCP< Thyra::VectorBase< Scalar > > xDot)
 Set xDot for Stepper storage. More...
 
virtual Teuchos::RCP
< Thyra::VectorBase< Scalar > > 
getStepperXDot (Teuchos::RCP< SolutionState< Scalar > > state)
 Get xDot from SolutionState or Stepper storage. More...
 
virtual Teuchos::RCP
< Thyra::VectorBase< Scalar > > 
getStepperXDotDot (Teuchos::RCP< SolutionState< Scalar > > state)
 Get xDotDot from SolutionState or Stepper storage. More...
 
- Public Member Functions inherited from Tempus::Stepper< Scalar >
virtual void modelWarning () const
 
virtual void takeStep (const Teuchos::RCP< SolutionHistory< Scalar > > &solutionHistory)=0
 Take the specified timestep, dt, and return true if successful. More...
 
void getValidParametersBasic (Teuchos::RCP< Teuchos::ParameterList > pl) const
 
virtual void createSubSteppers (std::vector< Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > >)
 
void validExplicitODE (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model) const
 Validate that the model supports explicit ODE evaluation, f(x,t) [=xdot]. More...
 
void validSecondOrderExplicitODE (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model) const
 Validate that the model supports explicit second order ODE evaluation, f(x,xdot,t) [=xdotdot]. More...
 
void validImplicitODE_DAE (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model) const
 Validate ME supports implicit ODE/DAE evaluation, f(xdot,x,t) [= 0]. More...
 
void validSecondOrderODE_DAE (const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model) const
 Validate ME supports 2nd order implicit ODE/DAE evaluation, f(xdotdot,xdot,x,t) [= 0]. More...
 
Teuchos::RCP
< Teuchos::ParameterList > 
defaultSolverParameters () const
 

Protected Attributes

Thyra::ModelEvaluatorBase::InArgs
< Scalar > 
inArgs_
 
Thyra::ModelEvaluatorBase::OutArgs
< Scalar > 
outArgs_
 
Scalar beta_
 
Scalar gamma_
 
Teuchos::RCP
< Teuchos::FancyOStream > 
out_
 
- Protected Attributes inherited from Tempus::StepperImplicit< Scalar >
Teuchos::RCP
< Teuchos::ParameterList > 
stepperPL_
 
Teuchos::RCP
< WrapperModelEvaluator
< Scalar > > 
wrapperModel_
 
Teuchos::RCP
< Thyra::NonlinearSolverBase
< Scalar > > 
solver_
 
Teuchos::RCP< const
Thyra::VectorBase< Scalar > > 
initial_guess_
 
Teuchos::RCP< StepperObserver
< Scalar > > 
stepperObserver_
 
Teuchos::RCP
< Thyra::VectorBase< Scalar > > 
stepperXDot_
 
Teuchos::RCP
< Thyra::VectorBase< Scalar > > 
stepperXDotDot_
 

Overridden from Teuchos::Describable

virtual void const
 
virtual std::string description () const
 

Detailed Description

template<class Scalar>
class Tempus::StepperNewmarkImplicitDForm< Scalar >

Newmark time stepper.

Here, we implement the Newmark scheme in displacement predictor/corrector form; see equations (34)-(35) in: A. Mota, W. Klug, M. Ortiz, "Finite element simulation of firearm injury to the human cranium", Computational Mechanics 31(1) 115-121 (2003).

Newmark has two parameters: $\beta$ and $\gamma$, both of which need to be in the range $[0,1]$. Newmark can be an explicit or implicit method, depending on the value of the $\beta$ parameter. If $\beta = 0$, the method is explicit; but note that the d-form of the Newmark scheme is not defined for the explicit case.

Newmark is second order accurate if $\gamma = 0.5$; otherwise it is first order accurate. Some additional properties about the Newmark Beta scheme can be found here.

The First-Step-As-Last (FSAL) principle is not used with the Newmark implicit D-Form method.

Definition at line 40 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

Constructor & Destructor Documentation

template<class Scalar >
Tempus::StepperNewmarkImplicitDForm< Scalar >::StepperNewmarkImplicitDForm ( )

Default constructor.

Definition at line 94 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
Tempus::StepperNewmarkImplicitDForm< Scalar >::StepperNewmarkImplicitDForm ( const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar >> &  appModel,
Teuchos::RCP< Teuchos::ParameterList >  pList = Teuchos::null 
)

Constructor.

Definition at line 105 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

Member Function Documentation

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::correctAcceleration ( Thyra::VectorBase< Scalar > &  a,
const Thyra::VectorBase< Scalar > &  dPred,
const Thyra::VectorBase< Scalar > &  d,
const Scalar  dt 
) const

Definition at line 82 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::correctDisplacement ( Thyra::VectorBase< Scalar > &  d,
const Thyra::VectorBase< Scalar > &  dPred,
const Thyra::VectorBase< Scalar > &  a,
const Scalar  dt 
) const

Definition at line 70 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::correctVelocity ( Thyra::VectorBase< Scalar > &  v,
const Thyra::VectorBase< Scalar > &  vPred,
const Thyra::VectorBase< Scalar > &  a,
const Scalar  dt 
) const

Definition at line 58 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
std::string Tempus::StepperNewmarkImplicitDForm< Scalar >::description ( ) const
virtual

Definition at line 330 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getAlpha ( const Scalar  dt) const
inlinevirtual

Return alpha = d(xDot)/d(x).

Implements Tempus::StepperImplicit< Scalar >.

Definition at line 109 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getBeta ( const Scalar  ) const
inlinevirtual

Return beta = d(x)/d(x).

Implements Tempus::StepperImplicit< Scalar >.

Definition at line 111 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
Teuchos::RCP< Teuchos::ParameterList > Tempus::StepperNewmarkImplicitDForm< Scalar >::getDefaultParameters ( ) const
virtual
template<class Scalar >
Teuchos::RCP< Tempus::StepperState< Scalar > > Tempus::StepperNewmarkImplicitDForm< Scalar >::getDefaultStepperState ( )
virtual

Get a default (initial) StepperState.

Provide a StepperState to the SolutionState. This Stepper does not have any special state data, so just provide the base class StepperState with the Stepper description. This can be checked to ensure that the input StepperState can be used by this Stepper.

Implements Tempus::Stepper< Scalar >.

Definition at line 319 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
Teuchos::RCP< Teuchos::ParameterList > Tempus::StepperNewmarkImplicitDForm< Scalar >::getNonconstParameterList ( )

Definition at line 472 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getOrder ( ) const
inlinevirtual
template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getOrderMax ( ) const
inlinevirtual
template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getOrderMin ( ) const
inlinevirtual
template<class Scalar >
virtual OrderODE Tempus::StepperNewmarkImplicitDForm< Scalar >::getOrderODE ( ) const
inlinevirtual
template<class Scalar >
Teuchos::RCP< const Teuchos::ParameterList > Tempus::StepperNewmarkImplicitDForm< Scalar >::getValidParameters ( ) const

Definition at line 436 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::getW_xDotDot_coeff ( const Scalar  dt) const
inlinevirtual

Return W_xDotxDot_coeff = d(xDotDot)/d(x).

Definition at line 106 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::initialize ( )
virtual

Initialize during construction and after changing input parameters.

Implements Tempus::Stepper< Scalar >.

Definition at line 142 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual bool Tempus::StepperNewmarkImplicitDForm< Scalar >::isExplicit ( ) const
inlinevirtual
template<class Scalar >
virtual bool Tempus::StepperNewmarkImplicitDForm< Scalar >::isExplicitImplicit ( ) const
inlinevirtual
template<class Scalar >
virtual bool Tempus::StepperNewmarkImplicitDForm< Scalar >::isImplicit ( ) const
inlinevirtual
template<class Scalar >
virtual bool Tempus::StepperNewmarkImplicitDForm< Scalar >::isMultiStepMethod ( ) const
inlinevirtual
template<class Scalar >
virtual bool Tempus::StepperNewmarkImplicitDForm< Scalar >::isOneStepMethod ( ) const
inlinevirtual
template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::predictDisplacement ( Thyra::VectorBase< Scalar > &  dPred,
const Thyra::VectorBase< Scalar > &  d,
const Thyra::VectorBase< Scalar > &  v,
const Thyra::VectorBase< Scalar > &  a,
const Scalar  dt 
) const

Definition at line 40 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::predictVelocity ( Thyra::VectorBase< Scalar > &  vPred,
const Thyra::VectorBase< Scalar > &  v,
const Thyra::VectorBase< Scalar > &  a,
const Scalar  dt 
) const

Definition at line 28 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual void Tempus::StepperNewmarkImplicitDForm< Scalar >::setInitialConditions ( const Teuchos::RCP< SolutionHistory< Scalar > > &  )
inlinevirtual

Set the initial conditions and make them consistent.

Reimplemented from Tempus::StepperImplicit< Scalar >.

Definition at line 70 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::setModel ( const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar >> &  appModel)
virtual

Definition at line 126 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
virtual void Tempus::StepperNewmarkImplicitDForm< Scalar >::setObserver ( Teuchos::RCP< StepperObserver< Scalar > >  obs = Teuchos::null)
inlinevirtual

Set Observer.

Implements Tempus::Stepper< Scalar >.

Definition at line 62 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::setParameterList ( const Teuchos::RCP< Teuchos::ParameterList > &  pl)

Definition at line 352 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
void Tempus::StepperNewmarkImplicitDForm< Scalar >::takeStep ( const Teuchos::RCP< SolutionHistory< Scalar >> &  solutionHistory)
virtual

Take the specified timestep, dt, and return true if successful.

Definition at line 158 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

template<class Scalar >
Teuchos::RCP< Teuchos::ParameterList > Tempus::StepperNewmarkImplicitDForm< Scalar >::unsetParameterList ( )

Definition at line 481 of file Tempus_StepperNewmarkImplicitDForm_impl.hpp.

Member Data Documentation

template<class Scalar >
Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::beta_
protected

Definition at line 167 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
virtual void Tempus::StepperNewmarkImplicitDForm< Scalar >::const

Definition at line 133 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
Scalar Tempus::StepperNewmarkImplicitDForm< Scalar >::gamma_
protected

Definition at line 168 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
Thyra::ModelEvaluatorBase::InArgs<Scalar> Tempus::StepperNewmarkImplicitDForm< Scalar >::inArgs_
protected

Definition at line 164 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
Teuchos::RCP<Teuchos::FancyOStream> Tempus::StepperNewmarkImplicitDForm< Scalar >::out_
protected

Definition at line 170 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.

template<class Scalar >
Thyra::ModelEvaluatorBase::OutArgs<Scalar> Tempus::StepperNewmarkImplicitDForm< Scalar >::outArgs_
protected

Definition at line 165 of file Tempus_StepperNewmarkImplicitDForm_decl.hpp.


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