Search found 32 matches

by schoolstru
Sun May 21, 2017 10:52 pm
Forum: OpenSees.exe Users
Topic: Acceptable test $tol convergence
Replies: 4
Views: 4850

Re: Acceptable test $tol convergence

thank you very much indeed
by schoolstru
Sun May 21, 2017 10:31 pm
Forum: OpenSees.exe Users
Topic: Acceptable test $tol convergence
Replies: 4
Views: 4850

Re: Acceptable test $tol convergence

thank you, i would be grateful if you send me a detailed adaptive strategy in tcl.
by schoolstru
Sat May 13, 2017 10:53 pm
Forum: OpenSees.exe Users
Topic: Eigen Analysis
Replies: 6
Views: 5590

Re: Eigen Analysis

I would be thankful if anyone answer
by schoolstru
Mon May 01, 2017 7:40 am
Forum: OpenSees.exe Users
Topic: dt AccelSeries and Dtanalysis
Replies: 2
Views: 2828

dt AccelSeries and Dtanalysis

the command set AccelSeries "Series -dt $dt -filePath $EQ_NAME -factor $GMfact"; # time series information defines the time-acceleration for dynamic analysis; the command set ok [analyze $Nsteps $DtAnalysis]; is conducted to analyze in step as $DtAnalysis 1- is it necessary that $dt==$DtAnalysis? 2-...
by schoolstru
Sun Apr 30, 2017 3:57 am
Forum: OpenSees.exe Users
Topic: $printFlagDynamic;
Replies: 0
Views: 2068

$printFlagDynamic;

what is the usage of this line in the analysis code? test $testTypeDynamic $TolDynamic $maxNumIterDynamic $printFlagDynamic; and what is the differences between these two lines? 1- test $testTypeDynamic $TolDynamic $maxNumIterDynamic $printFlagDynamic; 2- test $testTypeDynamic $TolDynamic $maxNumIte...
by schoolstru
Sun Apr 30, 2017 3:38 am
Forum: OpenSees.exe Users
Topic: Acceptable test $tol convergence
Replies: 4
Views: 4850

Acceptable test $tol convergence

what is the acceptable number for TolDynamic in Nonlinear Dynamic Analysis? here are some part of code " variable TolDynamic 1.e-5; # Convergence Test: tolerance variable maxNumIterDynamic 1000; # Convergence Test: maximum number of iterations that will be performed before "failure to converge" is r...
by schoolstru
Sun Apr 30, 2017 3:34 am
Forum: OpenSees.exe Users
Topic: OpenSees > analyze failed +analyze convergence
Replies: 0
Views: 2036

OpenSees > analyze failed +analyze convergence

what are the alternative when the analysis does not converge?
1- to small $DtAnalysis?
2-to change integrator type?
or others
which of them are preferable?
by schoolstru
Sat Apr 29, 2017 8:07 am
Forum: OpenSees.exe Users
Topic: OpenSees > analyze failed, returned: -3 error flag
Replies: 0
Views: 2252

OpenSees > analyze failed, returned: -3 error flag

i have made a 2-d model for RC moment frame, uniform excitation in one direction was applied on the model. i would like to conduct IDA (incremental dynamic analysis). the duration of selected record was 99.93 second. this message was appeared at the end. " Trying NewtonWithLineSearch .. WARNING: CTe...
by schoolstru
Sat Apr 29, 2017 7:48 am
Forum: OpenSees.exe Users
Topic: convergence of analysis
Replies: 6
Views: 8649

Re: convergence of analysis

TPdct wrote:
> Also, I advise you to use OpenSeesMP with Mumps solver to make computation
> fast enough
Thanks for your reply;
this error was due to modeling;
and it removed when i examined and correct the model;
i would like to thank you for your reply; it would be useful for me.
by schoolstru
Mon Feb 27, 2017 12:20 pm
Forum: OpenSees.exe Users
Topic: convergence of analysis
Replies: 6
Views: 8649

convergence of analysis

i conducted IDA analysis for my model and this message is printed i want to know that does it show that the analysis converge successfully? in other word when analysis get completed it always means that it converged or not? " OpenSees -- Open System For Earthquake Engineering Simulation Pacific Eart...
by schoolstru
Mon Feb 27, 2017 12:07 pm
Forum: OpenSees.exe Users
Topic: PDelta Geotransf
Replies: 2
Views: 2653

Re: PDelta Geotransf

and when i changed it from Pdelta to corotational it works,
does every body know why this happens?
and another matter is that does corotational trnasformation include both Pdelta and linear?
by schoolstru
Mon Feb 27, 2017 12:02 pm
Forum: OpenSees.exe Users
Topic: PDelta Geotransf
Replies: 2
Views: 2653

PDelta Geotransf

dear all would you please tell me that is it possible that we use geomTransf PDelta %d in the column with zerolenght element in the column? i mean that i have a column element that has concentrated plastic hinge at the both ends and this columns has also elasticBeamColumn i have a model as i said fi...
by schoolstru
Fri Sep 23, 2016 12:29 am
Forum: OpenSees.exe Users
Topic: Eigen Analysis problem
Replies: 2
Views: 2984

Re: Eigen Analysis problem

Pardon me, I am sorry, but i do not understand your answer. Do you answer my two questions? I issued eigen command without any analysis command and it works, do you mean it is necessary analysis command to be put before eigen analysis? If it is necessary so why it works without it?! Another problem ...
by schoolstru
Wed Sep 21, 2016 4:05 am
Forum: OpenSees.exe Users
Topic: Eigen Analysis problem
Replies: 2
Views: 2984

Eigen Analysis problem

i would like to ask you all to shed some light on this problem: 1- i ran a 3-storey in 3-D mode exactly similar to OpenSess example in OpenSees wiki when i put "eigen command" after gravity analysis it does not work but when i put "eigen command" before gravity analysis it worked and i do not figure...
by schoolstru
Wed Sep 21, 2016 3:43 am
Forum: OpenSees.exe Users
Topic: Eigen Analysis problem
Replies: 3
Views: 3107

Re: Eigen Analysis problem

I have modelled a 1-story building similar to the examples in OpenSees wiki. Surprisingly the software reports 14 periods for this model while I expect only three peiods since this is a 3 degree of freedom system (floors are modelled as rigid diphtagms).