NonLinearDynamicPrescribedStep

class sharpy.solvers.nonlineardynamicprescribedstep.NonLinearDynamicPrescribedStep

Structural solver used for the dynamic simulation of clamped structures or those subject to a prescribed motion.

This solver provides an interface to the structural library (xbeam) and updates the structural parameters for every k-th step in the FSI iteration.

This solver can be called as part of a standalone structural simulation or as the structural solver of a coupled aeroelastic simulation.

The settings that this solver accepts are given by a dictionary, with the following key-value pairs:

Name	Type	Description	Default
print_info	bool	Print output to screen	True
max_iterations	int	Sets maximum number of iterations	100
num_load_steps	int		1
delta_curved	float		0.01
min_delta	float	Structural solver relative tolerance	1e-05
abs_threshold	float	Structural solver absolute tolerance	1e-13
newmark_damp	float	Sets the Newmark damping coefficient	0.0001
gravity_on	bool	Flag to include gravitational forces	False
gravity	float	Gravitational acceleration	9.81
gravity_dir	list(float)	Direction in G where gravity applies	[0.0, 0.0, 1.0]
relaxation_factor	float		0.3
dt	float	Time step increment	0.01
num_steps	int		500