analysis parameters

[senior]

I have a big 2d model which has these things:
many equalDOFs
forcebeamcolumn
hysteretic material , steel02, steel 01
some rigid beams ( with large moment of inertia )
transient analysis with 3 records
plastic hinges

pls suggest transient analysis parameters ( numberer , test , ... ) .

[brag006]

Try different ones and see impact on analysis. best to have a loop that tries different parameters if one fails

[senior]

Please help me
my model is huge! so I can not change them frequently !

[mhscott]

No one can tell you what analysis parameters are best for your model. You will have to try different ones as brag006 suggested! Investigate the differences for a smaller model if run-time is an issue.

[brag006]

Btw you should never ever start with a big model, because there is huge potential for errors and finding them because very difficult. Start with small models and with low level nonlinearity then keep on upgrading as you improve your understanding of the different material models, elements, recorders etc.

Look at examples on the wiki for how to change analysis options, you just have to implement a small while loop.