TRBDF2 Integrator
The TRBDF2 integrator is an implicit time integration method that combines the Trapezoidal Rule and Backward Differentiation Formula for improved accuracy and stability.
Description
This integrator is particularly suitable for:
Stiff differential equations
Problems requiring high accuracy
Nonlinear dynamic analysis
Problems with varying time scales
Cases where stability is critical
The TRBDF2 method uses a two-stage approach, first applying the Trapezoidal Rule and then the Backward Differentiation Formula.
Parameters
This integrator has no parameters.
Usage Example
# Create a TRBDF2 integrator
integrator = fm.analysis.integrators.create_integrator("trbdf2")