Static Funnel
The so-called "static funnel" is a method by which multiple static solutions are sought in sequence tightening the static equilibrium solver settings each time. A couple examples are illustrated below via the Adams Solver command file (.acf) syntax:
equilibrium/error=100.000000,maxit=2500,stability=100.000000,imbalance=100.000000
simulate/static
!
equilibrium/error=20.000000,maxit=2500,stability=20.000000,imbalance=20.000000
simulate/static
equilibrium/error=1.000000,maxit=250,stability=1.000000,imbalance=0.100000
simulate/static
!
equilibrium/error=0.100000,maxit=250,stability=0.100000,imbalance=0.010000
simulate/static
The number of equilibrium runs and actual settings will be strongly dependent on the model. The two above examples are just to illustrate the tightening of settings.