### OpenSees Convergence Problems

Convergence Problems often occur when nonlinear analyses are run with OpenSees. In this article, a tcl program package is provided. This package helps OpenSees model to converge faster. This package is named SmartAnalyze.

When the OpenSees model fails to converge, the console will print

In general, if -3 error flag is returned, the convergence failure was encountered. In this time, users could try SmartAnalyze.

### How does SmartAnalyze Work

SmartAnalyze is a reusable program package. It has two analysis types, transient analysis and static analysis. The usage and methodology is introduced, respectively.

#### Converge OpenSees Transient Analysis with SmartAnalyze

Create models as usual. Do not call algorithm and test. Then replace the analyze line with the following code

### SmartAnalyze for python users

Mr. Difang Huang from South China University of Technology has created a python file using identical algorithm. OpenSees python interpreter users can use it directly.

The tcl file and the python file can be downloaded from the same repository SmartAnalyze. Pull requests are welcome.