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")