NonLinearDynamic¶

class sharpy.solvers.nonlineardynamic.NonLinearDynamic[source]¶

Structural solver used for the dynamic simulation of free-flying structures.

This solver provides an interface to the structural library (xbeam) and updates the structural parameters for every time step of the simulation.

This solver is called as part of a standalone structural 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 tolerance	`1e-05`
`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`
`relaxation_factor`	`float`		`0.3`
`dt`	`float`	Time step increment	`0.01`
`num_steps`	`int`		`500`
`prescribed_motion`	`bool`		`None`
`gravity_dir`	`list(float)`		`[0, 0, 1]`