Description

Base class for modal solvers.

Contrary to eigensolvers, these classes deals directly with Chrono data structures, creating the appropriate setup for running the inner eigensolver. Multiple requests spanning different frequency ranges can be specified.

#include <ChModalSolver.h>

Inheritance diagram for chrono::modal::ChModalSolver:

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Collaboration diagram for chrono::modal::ChModalSolver:

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Public Member Functions
	ChModalSolver (int n_lower_modes, double base_freq, bool scaleCq, bool verbose)
	Creates a modal solver. More...

	ChModalSolver (std::vector< ChFreqSpan > freq_spans, bool scaleCq, bool verbose)
	Creates a modal solver. More...

int	GetNumRequestedModes () const
	Get the total number of requested modes.

void	SetClipPositionCoords (bool val)
	Clip the eigenvectors to only the position coordinates.

const std::vector< ChFreqSpan > &	GetFrequencySpans () const
	Get the set of frequency spans for which modes are requested.

double	GetTimeMatrixAssembly () const
	Get cumulative time for matrix assembly.

double	GetTimeEigenSolver () const
	Get cumulative time eigensolver solution.

double	GetTimeSolutionPostProcessing () const
	Get cumulative time for post-solver solution postprocessing.

Protected Attributes
ChTimer	m_timer_matrix_assembly
	timer for matrix assembly

ChTimer	m_timer_eigen_solver
	timer for eigensolver solution

ChTimer	m_timer_solution_postprocessing
	timer for conversion of eigensolver solution

std::vector< ChFreqSpan >	m_freq_spans
	frequency spans for which modes are requested

bool	m_clip_position_coords
	store only the part of each eigenvector that refers to the position coordinates More...

bool	m_scaleCq = true
	if true, the Cq matrix is scaled to improve conditioning

bool	m_verbose = false
	if true, additional information is printed during the solution process

Constructor & Destructor Documentation

◆ ChModalSolver() [1/2]

chrono::modal::ChModalSolver::ChModalSolver	(	int	n_lower_modes,
		double	base_freq,
		bool	scaleCq,
		bool	verbose
	)

inline

Creates a modal solver.

n_lower_modes number of lowest modes to be found. base_freq frequency around which the modes will be found; higher values can help finding eigenvalues for ill-conditioned problems. scaleCq if true, the Cq matrix is scaled to improve conditioning. verbose if true, additional information is printed during the solution process.

◆ ChModalSolver() [2/2]

chrono::modal::ChModalSolver::ChModalSolver	(	std::vector< ChFreqSpan >	freq_spans,
		bool	scaleCq,
		bool	verbose
	)

inline

Creates a modal solver.

freq_spans pair of number of modes and frequency around which the modes will be found. ill-conditioned problems. scaleCq if true, the Cq matrix is scaled to improve conditioning. verbose if true, additional information is printed during the solution process.

Member Data Documentation

◆ m_clip_position_coords

bool chrono::modal::ChModalSolver::m_clip_position_coords

protected

Initial value:

=

true

store only the part of each eigenvector that refers to the position coordinates

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

/builds/uwsbel/chrono/src/chrono_modal/ChModalSolver.h
/builds/uwsbel/chrono/src/chrono_modal/ChModalSolver.cpp