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LeeNewmark Class Reference

A LeeNewmark class defines a solver using Newmark algorithm with Lee damping model. More...

#include <LeeNewmark.h>

Inheritance diagram for LeeNewmark:
Collaboration diagram for LeeNewmark:

Public Member Functions

 LeeNewmark (unsigned, vec &&, vec &&, double, double)
 
int initialize () override
 
int process_constraint () override
 
int process_constraint_resistance () override
 
void assemble_resistance () override
 
void print () override
 
- Public Member Functions inherited from LeeNewmarkBase
 LeeNewmarkBase (unsigned, double, double, StiffnessType=StiffnessType::CURRENT)
 
int initialize () override
 
int update_internal (const mat &) final
 
int solve (mat &, const mat &) final
 
int solve (mat &, const sp_mat &) final
 
int solve (mat &, mat &&) final
 
int solve (mat &, sp_mat &&) final
 
vec get_force_residual () final
 
vec get_displacement_residual () final
 
void commit_status () final
 
void clear_status () final
 
void reset_status () final
 
- Public Member Functions inherited from Newmark
 Newmark (unsigned=0, double=.25, double=.5)
 
void assemble_resistance () override
 
void assemble_matrix () override
 
int update_trial_status () override
 
void update_parameter (double) override
 
vec from_incre_velocity (const vec &, const uvec &) override
 
vec from_incre_acceleration (const vec &, const uvec &) override
 
void print () override
 
- Public Member Functions inherited from ImplicitIntegrator
constexpr IntegratorType type () const override
 
bool time_independent_matrix () const override
 
 Integrator (unsigned=0)
 
 Integrator (const Integrator &)=delete
 
 Integrator (Integrator &&)=delete
 
- Public Member Functions inherited from Integrator
 Integrator (unsigned=0)
 
 Integrator (const Integrator &)=delete
 
 Integrator (Integrator &&)=delete
 
Integratoroperator= (const Integrator &)=delete
 
Integratoroperator= (Integrator &&)=delete
 
 ~Integrator () override=default
 
void set_domain (const weak_ptr< DomainBase > &)
 
shared_ptr< DomainBaseget_domain () const
 
virtual int initialize ()
 
virtual constexpr IntegratorType type () const
 
void set_time_step_switch (bool)
 
bool allow_to_change_time_step () const
 
void set_matrix_assembled_switch (bool)
 
bool matrix_is_assembled () const
 
virtual bool has_corrector () const
 
virtual bool time_independent_matrix () const
 
virtual int process_load ()
 
virtual int process_constraint ()
 
virtual int process_criterion ()
 
virtual int process_modifier ()
 
virtual int process_load_resistance ()
 
virtual int process_constraint_resistance ()
 
void record () const
 
virtual void assemble_resistance ()
 
virtual void assemble_matrix ()
 
virtual vec get_force_residual ()
 
virtual vec get_displacement_residual ()
 
virtual vec get_auxiliary_residual ()
 
virtual sp_mat get_reference_load ()
 
virtual const vec & get_trial_displacement () const
 
virtual void update_load ()
 
virtual void update_constraint ()
 
virtual void update_trial_load_factor (double)
 
virtual void update_trial_load_factor (const vec &)
 
virtual void update_from_ninja ()
 
virtual void update_trial_time (double)
 
virtual void update_incre_time (double)
 
virtual int update_trial_status ()
 
virtual int correct_trial_status ()
 
virtual int sync_status (bool)
 
virtual int update_internal (const mat &)
 
mat solve (const mat &)
 
mat solve (const sp_mat &)
 
mat solve (mat &&)
 
mat solve (sp_mat &&)
 
virtual int solve (mat &, const mat &)
 
virtual int solve (mat &, const sp_mat &)
 
virtual int solve (mat &, mat &&)
 
virtual int solve (mat &, sp_mat &&)
 
virtual void erase_machine_error (vec &) const
 
void stage_and_commit_status ()
 
virtual void stage_status ()
 
virtual void commit_status ()
 
virtual void clear_status ()
 
virtual void reset_status ()
 
virtual void update_parameter (double)
 
virtual vec from_incre_velocity (const vec &, const uvec &)
 
virtual vec from_incre_acceleration (const vec &, const uvec &)
 
virtual vec from_total_velocity (const vec &, const uvec &)
 
virtual vec from_total_acceleration (const vec &, const uvec &)
 
vec from_incre_velocity (double, const uvec &)
 
vec from_incre_acceleration (double, const uvec &)
 
vec from_total_velocity (double, const uvec &)
 
vec from_total_acceleration (double, const uvec &)
 
- Public Member Functions inherited from Tag
 Tag (unsigned=0)
 
 Tag (const Tag &)=default
 
 Tag (Tag &&)=default
 
Tagoperator= (const Tag &)=delete
 
Tagoperator= (Tag &&)=delete
 
virtual ~Tag ()=default
 
void set_tag (unsigned) const
 
unsigned get_tag () const
 
void enable ()
 
void disable ()
 
void guard ()
 
void unguard ()
 
bool is_active () const
 
bool is_guarded () const
 
virtual void print ()
 

Protected Attributes

shared_ptr< MetaMat< double > > current_mass = nullptr
 
shared_ptr< MetaMat< double > > current_stiffness = nullptr
 
shared_ptr< MetaMat< double > > current_geometry = nullptr
 
- Protected Attributes inherited from LeeNewmarkBase
const uword n_block
 
const StiffnessType stiffness_type
 
bool first_iteration = true
 
bool if_iterative = false
 
vec current_internal
 
vec trial_internal
 
vec residual
 
unique_ptr< MetaMat< double > > stiffness = nullptr
 
shared_ptr< Factory< double > > factory = nullptr
 
- Protected Attributes inherited from Newmark
double C0 = 0.
 
double C1 = 0.
 
double C2 = 0.
 
double C3 = 0.
 
double C4 = 0.
 
double C5 = 0.
 

Additional Inherited Members

- Public Types inherited from LeeNewmarkBase
enum class  StiffnessType { INITIAL , CURRENT , TRIAL }
 
- Protected Member Functions inherited from LeeNewmarkBase
virtual uword get_total_size () const =0
 
virtual void update_stiffness () const =0
 
virtual void update_residual () const =0
 
int erase_top_left_block () const
 

Detailed Description

A LeeNewmark class defines a solver using Newmark algorithm with Lee damping model.

Remarks:

  1. Both dense and sparse storage schemes for original matrices are considered. The matrix–vector product may potentially be faster with dense formulation.
Author
tlc
Date
25/05/2020
Version
0.1.1

Constructor & Destructor Documentation

◆ LeeNewmark()

LeeNewmark::LeeNewmark ( unsigned  T,
vec &&  X,
vec &&  F,
double  A,
double  B 
)

Member Function Documentation

◆ assemble_resistance()

void LeeNewmark::assemble_resistance ( )
overridevirtual

Reimplemented from Integrator.

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◆ initialize()

int LeeNewmark::initialize ( )
overridevirtual

Reimplemented from Integrator.

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◆ print()

void LeeNewmark::print ( )
overridevirtual

Reimplemented from Tag.

◆ process_constraint()

int LeeNewmark::process_constraint ( )
overridevirtual

The main task of this method is to apply constraints (of various forms implemented in various methods). Combinations of different types need to be considered: 1) homogeneous, 2) inhomogeneous, 3) linear, 4) nonlinear. Combinations of different methods need to be considered: 1) penalty, 2) multiplier. On exit, the global stiffness matrix should be updated, the global residual vector should be updated.

Reimplemented from Integrator.

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◆ process_constraint_resistance()

int LeeNewmark::process_constraint_resistance ( )
overridevirtual

This method is similar to process_constraint(), but it only updates the global residual vector. The global stiffness matrix is not touched as in some solving schemes, the global stiffness matrix is only assembled and factorised once at the beginning. Subsequent iterations do not assemble the global stiffness matrix again and reuse the factorised matrix. In this case, the factorised matrix cannot be modified.

Reimplemented from Integrator.

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Member Data Documentation

◆ current_geometry

shared_ptr<MetaMat<double> > LeeNewmark::current_geometry = nullptr
protected

◆ current_mass

shared_ptr<MetaMat<double> > LeeNewmark::current_mass = nullptr
protected

◆ current_stiffness

shared_ptr<MetaMat<double> > LeeNewmark::current_stiffness = nullptr
protected

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