RigidAnalysis

RigidAnalysis(
    ky,
    ground_motion,
    scale_factor=1.0,
    target_pga=None,
    inverse=False,
)

Rigid Block Analysis.

Parameters

Name	Type	Description	Default
ky	float	Critical acceleration (in g).	required
ground_motion	GroundMotion	Ground motion object containing acceleration time history and time step.	required
scale_factor	float	Scaling factor for the input acceleration. Default is 1.0.	1.0
target_pga	float	Target peak ground acceleration (in m/s^2). If provided, the input acceleration will be scaled to match this value. Cannot be used with scale_factor.	None

Raises

Name	Type	Description
	ValueError	If both target_pga and scale_factor are provided.

Attributes

Name	Type	Description
ground_acc	numpy.ndarray	Internal ground acceleration time series (in m/s^2).
ky	float	Yield acceleration (in g) for user interface.
ky	float	Internal yield acceleration (in m/s^2) for calculations.

Methods

Name	Description
run_rigid_analysis	Calculate the downslope rigid block displacement, differential velocity, and acceleration.

run_rigid_analysis

RigidAnalysis.run_rigid_analysis()

Calculate the downslope rigid block displacement, differential velocity, and acceleration.

Notes

This method iteratively calculates the block’s acceleration, velocity, and displacement based on the input ground acceleration and critical acceleration.