HHTIntegrator

HHTIntegrator(alpha: float, gamma: Optional[float] = None, beta: Optional[float] = None)

Bases: TransientIntegrator

Hilber-Hughes-Taylor transient integrator.

HHTIntegrator implements the Hilber-Hughes-Taylor (alpha-method) implicit scheme for dynamics, introducing numerical damping for high-frequency modes while retaining second-order accuracy.

Tcl form

integrator HHT <alpha> <gamma> <beta>

Example

from femora.core.model import Model

model = Model()
integ = model.analysis.integrator.hht(alpha=0.67)

Create an HHT transient integrator.

Parameters:

Name	Type	Description	Default
`alpha`	`float`	Alpha integration parameter.	required
`gamma`	`Optional[float]`	Gamma integration parameter. Defaults to `1.5 - alpha`.	`None`
`beta`	`Optional[float]`	Beta integration parameter. Defaults to `(2 - alpha)**2 / 4`.	`None`