Search found 34 matches

by benliangxiao
Tue Jun 06, 2017 1:33 pm
Forum: OpenSees.exe Users
Topic: section recorder
Replies: 2
Views: 3074

Re: section recorder

By the way, it's a circular column.

Thanks,
Xiao
by benliangxiao
Tue Jun 06, 2017 12:31 pm
Forum: OpenSees.exe Users
Topic: section recorder
Replies: 2
Views: 3074

section recorder

Hi, I'm running a 3D model and using the following commands to record the responses for a bridge column recorder Element -file def.txt -time -ele 100 section 10 deformation; recorder Element -file force.txt -time -ele 100 section 10 force; The results have 7 columns with the first one as the time. I...
by benliangxiao
Mon Jul 14, 2014 2:17 pm
Forum: OpenSees.exe Users
Topic: Is it a bug?
Replies: 5
Views: 4698

Re: Is it a bug?

Did you mean in this case I should use the command "element forceBeamElement" instead of "element beamWithHinges"? For the -iter option, the default maximum number of iteration is 1 and the default tolerance is 1e-16, should I change to other values. Many thanks, Xiao. fmk wrote: > no .. it was chan...
by benliangxiao
Thu Jun 26, 2014 1:04 pm
Forum: OpenSees.exe Users
Topic: Is it a bug?
Replies: 5
Views: 4698

Re: Is it a bug?

Thank you. Yes, the beamWithHinges is used. The problem was solved by changing constraints from Transformation to Penalty. Did you mean change to other hinge integration methods? fmk wrote: > Ben, > > are you using the force beam column, i.e. element type > "nonlinearBeamColumn", "forceBEamColumn" ,...
by benliangxiao
Tue Jun 24, 2014 3:52 pm
Forum: OpenSees.exe Users
Topic: Is it a bug?
Replies: 5
Views: 4698

Re: Is it a bug?

BTW, I'm using the latest version 2.4.4.
by benliangxiao
Tue Jun 24, 2014 3:50 pm
Forum: OpenSees.exe Users
Topic: Is it a bug?
Replies: 5
Views: 4698

Is it a bug?

Hi, I'm running time history analysis for a large model. It's getting stuck at one step without showing any error or convergence message and it lasts forever. It seems that it's running the command "set ok [analyze 1 $dt]" forever. This problem also happened to my other relatively simpler models bef...
by benliangxiao
Wed Feb 26, 2014 10:35 am
Forum: OpenSees.exe Users
Topic: AlphaOS wi./w.o updateDomain
Replies: 0
Views: 1498

AlphaOS wi./w.o updateDomain

Hi,

I was wondering what the difference is for AlphaOS with and without -updateDomain.

Thanks,
Xiao.
by benliangxiao
Wed Oct 30, 2013 5:57 pm
Forum: OpenSees.exe Users
Topic: Penalty constraints with AlphaOS
Replies: 2
Views: 2700

Re: Penalty constraints with AlphaOS

Anyone knows it?
by benliangxiao
Mon Oct 21, 2013 4:24 pm
Forum: OpenSees.exe Users
Topic: Penalty constraints with AlphaOS
Replies: 2
Views: 2700

Penalty constraints with AlphaOS

Hi,

Could penalty constraints work with AlphaOS?
When I tired, it always showed "WARNING PenaltySP_FE::getC_Force() - not yet implemented".

Thanks,
Xiao.
by benliangxiao
Mon Apr 29, 2013 3:04 pm
Forum: OpenSees.exe Users
Topic: Opensees 2.4.0.8
Replies: 3
Views: 3447

Re: Opensees 2.4.0.8

fmk wrote: > were you using bilin in the script that was failing? .. i have received and > updated a fix for the previous fix! .. it is in version 2.4.0.10, which you > can download it now. > > yes it was. D.Lignos has been making a few changes to it. Yes, it could work now with version 2.4.0.10. Th...
by benliangxiao
Wed Apr 24, 2013 9:27 pm
Forum: OpenSees.exe Users
Topic: Opensees 2.4.0.8
Replies: 3
Views: 3447

Re: Opensees 2.4.0.8

BTW, is Bilin Material included in version 2.4.0?

Thanks,
Xiao.
by benliangxiao
Wed Apr 24, 2013 4:20 pm
Forum: OpenSees.exe Users
Topic: Opensees 2.4.0.8
Replies: 3
Views: 3447

Opensees 2.4.0.8

Hi,

My dynamic analysis could not be converged in newest version 2.4.0.8 but it was converged in the previous version 2.4.0.
Could I just stick to the older version?

Thanks,
Xiao.
by benliangxiao
Tue Feb 19, 2013 11:55 am
Forum: OpenSees.exe Users
Topic: Dynamic analysis for the bridge
Replies: 2
Views: 3261

Re: Dynamic analysis for the bridge

Anyone has any idea about it?

Best,
Xiao.
by benliangxiao
Fri Feb 15, 2013 1:27 pm
Forum: OpenSees.exe Users
Topic: Dynamic analysis for the bridge
Replies: 2
Views: 3261

Dynamic analysis for the bridge

Hi, When I was doing dynamic analysis to a bridge, there were a lot of same warnings when I used the Broyden and BFGS, the warning is as below: WARNING: CTestEnergyIncr::test() - failed to converge after: 10 iterations I'm not sure what the above stands for. The maximum number of iterations is 100. ...
by benliangxiao
Wed Feb 13, 2013 11:07 am
Forum: OpenSees.exe Users
Topic: Dynamic analysis for the 3D soil
Replies: 10
Views: 6479

Re: Dynamic analysis for the 3D soil

vesna wrote:
> Why don't you create a log file
> :http://opensees.berkeley.edu/wiki/index ... le_Command and send it to
> my email: vesna at berkeley dot edu.

Hi vesna,

The log file has been sent to your email.

Many thanks,
Xiao.