Coupled

Coupled(
    ky,
    ground_motion,
    height,
    vs_slope,
    vs_base,
    damp_ratio,
    ref_strain=None,
    scale_factor=1,
    target_pga=None,
    soil_model='linear_elastic',
    si_units=True,
    lite=False,
    inverse=False,
)

Coupled analysis for sliding block and ground motion interaction.

Parameters

Name	Type	Description	Default
ky	float or tuple[list[float], list[float]] or tuple[np.ndarray, np.ndarray] or callable	Yield acceleration or function defining yield acceleration.	required
ground_motion	GroundMotion	Ground motion object containing acceleration time history and time step.	required
height	int or float	Height of the sliding block.	required
vs_slope	int or float	Shear wave velocity slope.	required
vs_base	int or float	Base shear wave velocity.	required
damp_ratio	float	Damping ratio.	required
ref_strain	float	Reference strain for equivalent linear analysis. Required when soil_model is ‘equivalent_linear’.	None
scale_factor	float	Scale factor for input acceleration, by default 1.	1
target_pga	float	Target peak ground acceleration, by default None.	None
soil_model	str	Soil model type, by default “linear_elastic”.	'linear_elastic'
si_units	bool	Use SI units, by default True.	True
lite	bool	Lite mode, by default False.	False

Attributes

Name	Type	Description
HEA	np.ndarray	Horizontal equivalent acceleration time history from dynamic response.
gamma	float	Integration parameter gamma.
block_acc	np.ndarray	Block acceleration time history.
ground_acc	np.ndarray	Ground acceleration time history.
max_sliding_disp	float	Maximum sliding displacement.