Transient vs. VariableTransient Analysis

[dynaryu]

Hi,

I'm doing nonlinear dynamic analysis using OpenSees. I used to do it
with Transient Analysis, but I recently found that there is another
one : Variable Transient Analysis. So.. I'm not sure which one is
better (?) or appropriate for my case. Would you let me know anything
(cons. and pros. or something else ) about them ? Your help would be
greatly appreciated.

[fmk]

VariableTransient varies the time step in the analysis depending on the convergence rate .. if you are having convergence problems it can save you
hjaving to use a very small constant time step throughout the analysis.