This class implements the generalized alpha method for solution of a second-order ODE. More...

#include <generalized_alpha_transient_solver.h>

Inheritance diagram for MAST::GeneralizedAlphaTransientSolver:

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Collaboration diagram for MAST::GeneralizedAlphaTransientSolver:

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Public Member Functions
	GeneralizedAlphaTransientSolver ()

virtual	~GeneralizedAlphaTransientSolver ()

void	update_coefficient (Real rho_infinity)
	Computes the value of coefficients basde on value of $\rho_\infty$ . More...

virtual void	set_element_data (const std::vector< libMesh::dof_id_type > &dof_indices, const std::vector< libMesh::NumericVector< Real > * > &sols)
	provides the element with the transient data for calculations More...

virtual void	extract_element_sensitivity_data (const std::vector< libMesh::dof_id_type > &dof_indices, const std::vector< libMesh::NumericVector< Real > * > &sols, std::vector< RealVectorX > &local_sols)
	provides the element with the sensitivity of transient data for calculations More...

virtual void	set_element_perturbed_data (const std::vector< libMesh::dof_id_type > &dof_indices, const std::vector< libMesh::NumericVector< Real > * > &sols)
	provides the element with the transient data for calculations More...

virtual void	elem_calculations (bool if_jac, RealVectorX &vec, RealMatrixX &mat)
	performs the element calculations over `elem`, and returns the element vector and matrix quantities in `mat` and `vec`, respectively. More...

Public Member Functions inherited from MAST::SecondOrderNewmarkTransientSolver
	SecondOrderNewmarkTransientSolver ()

virtual	~SecondOrderNewmarkTransientSolver ()

virtual void	update_velocity (libMesh::NumericVector< Real > &vec, const libMesh::NumericVector< Real > &sol)
	update the transient velocity based on the current solution More...

virtual void	update_acceleration (libMesh::NumericVector< Real > &vec, const libMesh::NumericVector< Real > &sol)
	update the transient acceleration based on the current solution More...

virtual void	update_sensitivity_velocity (libMesh::NumericVector< Real > &vel, const libMesh::NumericVector< Real > &sol)
	update the transient sensitivity velocity based on the current sensitivity solution More...

virtual void	update_sensitivity_acceleration (libMesh::NumericVector< Real > &acc, const libMesh::NumericVector< Real > &sol)
	update the transient sensitivity acceleration based on the current sensitivity solution More...

virtual void	update_delta_velocity (libMesh::NumericVector< Real > &vel, const libMesh::NumericVector< Real > &sol)
	update the perturbation in transient velocity based on the current perturbed solution More...

virtual void	update_delta_acceleration (libMesh::NumericVector< Real > &acc, const libMesh::NumericVector< Real > &sol)
	update the perturbation in transient acceleration based on the current perturbed solution More...

Public Member Functions inherited from MAST::TransientSolverBase
	TransientSolverBase (unsigned int o, unsigned int n)
	constructor requires the number of iterations to store for the derived solver. More...

virtual	~TransientSolverBase ()

virtual void	set_assembly (MAST::AssemblyBase &assembly)
	sets the assembly object More...

virtual void	clear_assembly ()
	clears the assembly object More...

virtual void	set_elem_operation_object (MAST::TransientAssemblyElemOperations &elem_ops)
	Attaches the assembly elem operations object that provides the x_dot, M and J quantities for the element. More...

virtual MAST::TransientAssemblyElemOperations &	get_elem_operation_object ()

virtual void	clear_elem_operation_object ()
	Clears the assembly elem operations object. More...

libMesh::NumericVector< Real > &	solution (unsigned int prev_iter=0) const

libMesh::NumericVector< Real > &	solution_sensitivity (unsigned int prev_iter=0) const

libMesh::NumericVector< Real > &	velocity (unsigned int prev_iter=0) const

libMesh::NumericVector< Real > &	velocity_sensitivity (unsigned int prev_iter=0) const

libMesh::NumericVector< Real > &	acceleration (unsigned int prev_iter=0) const

libMesh::NumericVector< Real > &	acceleration_sensitivity (unsigned int prev_iter=0) const

virtual void	solve (MAST::AssemblyBase &assembly)
	solves the current time step for solution and velocity More...

virtual void	sensitivity_solve (MAST::AssemblyBase &assembly, const MAST::FunctionBase &f)
	solvers the current time step for sensitivity wrt `f` More...

void	solve_highest_derivative_and_advance_time_step (MAST::AssemblyBase &assembly)
	To be used only for initial conditions. More...

void	solve_highest_derivative_and_advance_time_step_with_sensitivity (MAST::AssemblyBase &assembly, const MAST::FunctionBase &f)
	solves for the sensitivity of highest derivative and advances the time-step. More...

virtual void	advance_time_step ()
	advances the time step and copies the current solution to old solution, and so on. More...

virtual void	advance_time_step_with_sensitivity ()
	advances the time step and copies the current sensitivity solution to old sensitivity solution, and so on. More...

virtual void	build_local_quantities (const libMesh::NumericVector< Real > &current_sol, std::vector< libMesh::NumericVector< Real > * > &qtys)
	localizes the relevant solutions for system assembly. More...

virtual void	build_sensitivity_local_quantities (unsigned int prev_iter, std::vector< libMesh::NumericVector< Real > * > &qtys)
	localizes the relevant solutions for system assembly. More...

Public Member Functions inherited from MAST::NonlinearImplicitAssemblyElemOperations
	NonlinearImplicitAssemblyElemOperations ()

virtual	~NonlinearImplicitAssemblyElemOperations ()

virtual void	elem_linearized_jacobian_solution_product (RealVectorX &vec)=0
	performs the element calculations over `elem`, and returns the element vector quantity in `vec`. More...

virtual void	elem_sensitivity_calculations (const MAST::FunctionBase &f, RealVectorX &vec)=0
	performs the element sensitivity calculations over `elem`, and returns the element residual sensitivity in `vec` . More...

virtual void	elem_shape_sensitivity_calculations (const MAST::FunctionBase &f, RealVectorX &vec)=0
	performs the element shape sensitivity calculations over `elem`, and returns the element residual sensitivity in `vec` . More...

virtual void	elem_topology_sensitivity_calculations (const MAST::FunctionBase &f, const MAST::FieldFunction< RealVectorX > &vel, RealVectorX &vec)=0
	performs the element topology sensitivity calculations over `elem`, and returns the element residual sensitivity in `vec` . More...

virtual void	elem_second_derivative_dot_solution_assembly (RealMatrixX &mat)=0
	calculates $d ([J] \{\Delta X\})/ dX$ over `elem`, and returns the matrix in `vec` . More...

void	check_element_numerical_jacobian (RealVectorX &sol)
	a helper function to evaluate the numerical Jacobian and compare it with the analytical Jacobian. More...

Public Member Functions inherited from MAST::AssemblyElemOperations
	AssemblyElemOperations ()

virtual	~AssemblyElemOperations ()

MAST::SystemInitialization &	get_system_initialization ()

MAST::PhysicsDisciplineBase &	get_discipline ()

virtual void	set_discipline_and_system (MAST::PhysicsDisciplineBase &discipline, MAST::SystemInitialization &system)
	attaches a system to this discipline More...

virtual void	clear_discipline_and_system ()
	clears association with a system to this discipline More...

virtual MAST::AssemblyBase &	get_assembly ()

virtual void	set_elem_data (unsigned int dim, const libMesh::Elem &ref_elem, MAST::GeomElem &elem) const =0
	some analyses may want to set additional element data before initialization of the GeomElem. More...

virtual void	init (const MAST::GeomElem &elem)=0
	initializes the object for calculation of element quantities for the specified `elem`. More...

virtual void	clear_elem ()
	clears the element initialization More...

MAST::ElementBase &	get_physics_elem ()

virtual void	set_elem_solution (const RealVectorX &sol)
	sets the element solution More...

virtual void	set_elem_solution_sensitivity (const RealVectorX &sol)
	sets the element solution sensitivity More...

virtual void	set_elem_perturbed_solution (const RealVectorX &sol)
	sets the element perturbed solution More...

virtual void	set_elem_velocity (const RealVectorX &vel)
	sets the element velocity More...

virtual void	set_elem_velocity_sensitivity (const RealVectorX &vel)
	sets the element velocity sensitivity More...

virtual void	set_elem_perturbed_velocity (const RealVectorX &vel)
	sets the element perturbed velocity More...

virtual void	set_elem_acceleration (const RealVectorX &accel)
	sets the element acceleration More...

virtual void	set_elem_acceleration_sensitivity (const RealVectorX &accel)
	sets the element acceleration More...

virtual void	set_elem_perturbed_acceleration (const RealVectorX &accel)
	sets the element perturbed acceleration More...

Public Attributes
Real	rho_inf
	$\rho_\infty$ parameter used by this solver. More...

Real	alpha_m
	$\alpha_m$ parameter used by this solver. More...

Real	alpha_f
	$\alpha_f$ parameter used by this solver. More...

Public Attributes inherited from MAST::SecondOrderNewmarkTransientSolver
Real	beta
	$\beta$ parameter used by this solver. More...

Real	gamma
	$\gamma$ parameter used by this solver. More...

Public Attributes inherited from MAST::TransientSolverBase
Real	dt
	time step More...

Additional Inherited Members
Protected Attributes inherited from MAST::AssemblyElemOperations
MAST::SystemInitialization *	_system

MAST::PhysicsDisciplineBase *	_discipline

MAST::AssemblyBase *	_assembly

MAST::ElementBase *	_physics_elem

Detailed Description

This class implements the generalized alpha method for solution of a second-order ODE.

Definition at line 35 of file generalized_alpha_transient_solver.h.

Constructor & Destructor Documentation

MAST::GeneralizedAlphaTransientSolver::GeneralizedAlphaTransientSolver ( )

Definition at line 32 of file generalized_alpha_transient_solver.cpp.

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MAST::GeneralizedAlphaTransientSolver::~GeneralizedAlphaTransientSolver ( )

virtual

Definition at line 42 of file generalized_alpha_transient_solver.cpp.

Member Function Documentation

void MAST::GeneralizedAlphaTransientSolver::elem_calculations	(	bool	if_jac,
		RealVectorX &	vec,
		RealMatrixX &	mat
	)

virtual

performs the element calculations over elem, and returns the element vector and matrix quantities in mat and vec, respectively.

if_jac tells the method to also assemble the Jacobian, in addition to the residual vector.

Reimplemented from MAST::SecondOrderNewmarkTransientSolver.

Definition at line 195 of file generalized_alpha_transient_solver.cpp.

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void MAST::GeneralizedAlphaTransientSolver::extract_element_sensitivity_data	(	const std::vector< libMesh::dof_id_type > &	dof_indices,
		const std::vector< libMesh::NumericVector< Real > * > &	sols,
		std::vector< RealVectorX > &	local_sols
	)

virtual

provides the element with the sensitivity of transient data for calculations

Reimplemented from MAST::SecondOrderNewmarkTransientSolver.

Definition at line 111 of file generalized_alpha_transient_solver.cpp.

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void MAST::GeneralizedAlphaTransientSolver::set_element_data	(	const std::vector< libMesh::dof_id_type > &	dof_indices,
		const std::vector< libMesh::NumericVector< Real > * > &	sols
	)

virtual

provides the element with the transient data for calculations

Reimplemented from MAST::SecondOrderNewmarkTransientSolver.

Definition at line 67 of file generalized_alpha_transient_solver.cpp.

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void MAST::GeneralizedAlphaTransientSolver::set_element_perturbed_data	(	const std::vector< libMesh::dof_id_type > &	dof_indices,
		const std::vector< libMesh::NumericVector< Real > * > &	sols
	)

virtual

provides the element with the transient data for calculations

Reimplemented from MAST::SecondOrderNewmarkTransientSolver.

Definition at line 157 of file generalized_alpha_transient_solver.cpp.

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void MAST::GeneralizedAlphaTransientSolver::update_coefficient ( Real rho_infinity )

Computes the value of coefficients basde on value of $\rho_\infty$ .

Definition at line 48 of file generalized_alpha_transient_solver.cpp.

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Member Data Documentation

Real MAST::GeneralizedAlphaTransientSolver::alpha_f

$\alpha_f$ parameter used by this solver.

Definition at line 56 of file generalized_alpha_transient_solver.h.

Real MAST::GeneralizedAlphaTransientSolver::alpha_m

$\alpha_m$ parameter used by this solver.

Definition at line 51 of file generalized_alpha_transient_solver.h.

Real MAST::GeneralizedAlphaTransientSolver::rho_inf

$\rho_\infty$ parameter used by this solver.

A value of 1 provides no dissippation and a value of 0 provides asymptotic annihilation. Default is 0.2.

Definition at line 46 of file generalized_alpha_transient_solver.h.

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

/home/travis/build/MASTmultiphysics/mast-multiphysics/src/solver/generalized_alpha_transient_solver.h
/home/travis/build/MASTmultiphysics/mast-multiphysics/src/solver/generalized_alpha_transient_solver.cpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation