asdeasoft.net

Dear Francesca
The problem I encounter is following.
I write a tcl file manually to take time history analysis with 9 analysis stages under 9 different PGA earthquake wave to simulate shaking table test stage by stage, OS TCL is not finished by STKO preprocessing.
I want to scan the stage-by-stage results by STKO postprocessing （I install STKO free trial but limited version）.

OS tcl can be runed successfully without mpco recorder.
I add “recorder mpco ” codes before the first stage to record all analysis stages.

Then I source TCL in OpenSeessp.exe, but following MPCO problem is showed. I don’t know reasons and how to solve it. Would you please help me to solve this problem ?

In my OpenSees TCL, 9 analysis stages ( I define cases by add “ time” , I set time as 100，200 ，300，
400，500，600，700，800，900, for 9 analysis stages) are continuously calculated stage by stage
"mpco" recorder is added beforce the first stage to record all the results of stages.

in the middle of analysis stages, node mass and gravity loads are modified to change its mass and load distrituion(node id and beam id is not modified). which seems to cause this problem.

however if I delete some “time” (delete some analsysis stages , don't delete node mass and load distribution modification), "mpco" recorder works well and "mpco" results are ok.

If I insert "mpco" codes to the midddle of analysis stages, "mpco" also works well to record last several analysis stages and "mpco" results are ok, but can't record all stages. so I guess there is a maxium of analysis stages "mpco" recorder can handle .


Thank you very much.

Best regards.
Pan

Dear pan,
So, in theory you can import in the STKO postprocessor with the MPCO recorder class in Opensees, with the same limits of the pre-processor in terms of number of elements etc..given by the fact that you are using a free version.
There is nothing about the stages specifically.

From the error you are showing it seems that it js not writing your HDF5 file properly.
What Opensees version are you using? Did you compile it yourself or downloaded it precompiled?

Send us the tcl file and we can try it ourselves and give you a better answer.

Francesca