Search found 14 matches

by YoungXu
Tue Mar 17, 2015 1:51 am
Forum: OpenSees.exe Users
Topic: Why the elasticity modulus are inconsistency?
Replies: 2
Views: 2922

Re: Why the elasticity modulus are inconsistency?

Thank you very much! Dr.! And, so the Fy=1.5 is not from the test?
by YoungXu
Tue Mar 17, 2015 1:04 am
Forum: OpenSees.exe Users
Topic: Why the groundmotion script and rayleigh script are not work
Replies: 0
Views: 1543

Why the groundmotion script and rayleigh script are not work

Today, I found that the groundmotion and rayleigh damping are not work, for example, I enter the Sine wave and the rayleigh for the cantilever, but the cantilever's displacement plot always sine wave. So, I want to know why? Thanks everybody! #units: mm, N, MPa, ton model BasicBuilder -ndm 2 -ndf 3 ...
by YoungXu
Mon Mar 16, 2015 3:03 am
Forum: OpenSees.exe Users
Topic: Why the elasticity modulus are inconsistency?
Replies: 2
Views: 2922

Why the elasticity modulus are inconsistency?

Dr. Aschellenberg I saw the OpenSees and OpenFresco examples of PortalFrame, why the elasticity modulus of uniaxialMaterial Steel02 is not equal with the elasticity modulus of expElement? Could you tell me the reason? Thank you! uniaxialMaterial Steel02 1 1.5 2.8 0.01 18.5 0.925 0.15 0.0 1.0 0.0 1.0...
by YoungXu
Thu Mar 12, 2015 10:10 pm
Forum: OpenSees.exe Users
Topic: Output data has something wrong
Replies: 1
Views: 2472

Output data has something wrong

Hi, I build a model, but the force of output data plot like rectangle. What's wrong with my script? I think whether the element parameters have error? But I can't find out~~~ Please help me! Thanks everybody! -------------------------------------------------------------------------------------------...
by YoungXu
Sun Feb 22, 2015 5:11 pm
Forum: OpenSees.exe Users
Topic: Wrong message of the VBrace model with OpenSees Navigator
Replies: 2
Views: 3485

Re: Wrong message of the VBrace model with OpenSees Navigato

Sir, you mean the version 2.5.3 of Navigator is not for the version 2.4.4 of OpenSees? Sir, by the way, recently I use a simply portal frame to run the Hybrid Testing, but the simulation displacement(displacement data small like 0.5mm) is not equal the actuator's displacement(displacement data very ...
by YoungXu
Tue Feb 17, 2015 6:28 am
Forum: OpenSees.exe Users
Topic: Wrong message of the VBrace model with OpenSees Navigator
Replies: 2
Views: 3485

Wrong message of the VBrace model with OpenSees Navigator

Hi, I build a model of VBrace with Navigator, but there are some problems which shows that "WARNING: Invalid option -cMass in: element Truss 9 $iNode $jNode $A $matTag <-rho $rho> <-doRayleigh $flagh> Invalid Args want: element TrussSection $tag $iNode $jNode $sectTag <-rho $rho> TclElementComm...
by YoungXu
Sun Dec 28, 2014 9:19 am
Forum: OpenSees.exe Users
Topic: Wrong with the nonlinear dynamic elastoplastic analysis
Replies: 0
Views: 1829

Wrong with the nonlinear dynamic elastoplastic analysis

Hi I want to run the nonlinear dynamic elastoplastic analysis about a simply RC structure. But the error remind that "WARNING:CTestEnergyIncr::test<>-failed to converge after:300 interations NewtnRaphson::solveCurrentStep<>-the ConvergenceTest object failed in test<> DirectIntegrationAnalysis::...
by YoungXu
Mon Nov 03, 2014 9:12 pm
Forum: OpenSees.exe Users
Topic: How to use the new integrators?
Replies: 3
Views: 2934

Re: How to use the new integrators?

Sir, whether the Version 2.4.4 include update code? And now, I take out the integrator's code.
by YoungXu
Mon Nov 03, 2014 3:30 am
Forum: OpenSees.exe Users
Topic: How to use the new integrators?
Replies: 3
Views: 2934

How to use the new integrators?

I found some useful integrators in "SUBVERSION REPOSITORIES of OPENSEES". If I want to use it, how can I check the parameters of these integrators, like AlphaOS, NewmarkExplicit, NewmarkHSIncrReduct and so on. http://opensees.berkeley.edu/WebSVN/diff.php?repname=OpenSees&path=%2Ftrunk%...
by YoungXu
Tue Oct 21, 2014 12:20 am
Forum: OpenSees.exe Users
Topic: the node mass and the constant gravity load
Replies: 1
Views: 1961

the node mass and the constant gravity load

what are different between the node mass and the constant gravity load? If I build the model like this. The upper nodes how to be selected the node mass or to be caculated the mass of beam and then set up? #_________________ #| mass of beam### | #| ############ ## | #| mass of column# | #| #########...
by YoungXu
Thu Jul 31, 2014 1:18 am
Forum: OpenSees.exe Users
Topic: Hybrid Simulation: Opensees+OpenFresco. can't record
Replies: 0
Views: 1588

Hybrid Simulation: Opensees+OpenFresco. can't record

Hello everyone, Recently, I edit a Hybrid Simulation with Opensees and OpenFresco, the procedure is similar with those successful examples. But, when I run this script, the recorder couldn't work right, I am looking for the wrong many many times, but I couldn't solve it... If someone want connect me...
by YoungXu
Mon Jul 21, 2014 6:46 pm
Forum: OpenSees.exe Users
Topic: Units and numerical value on the ground motion
Replies: 1
Views: 1827

Units and numerical value on the ground motion

Dear sir, I have three questions. 1. After I set the units, how can I embed it into the groundmotion? 2. I download the groundmotion data from this web(http://peer.berkeley.edu/smcat/index.html), but the accel data like this "-0.004524259" which is too small, how can I change it? The other...
by YoungXu
Wed Jun 11, 2014 10:22 pm
Forum: Documentation
Topic: Dynamic ground motion
Replies: 3
Views: 4957

Re: Dynamic ground motion

Thank you fmk! I found that if I want to use the "BM68elx.acc" , I must change the digital matrix of this file's content(download from the "opensees Examples" ), just like become X*X to X*1. How can I change the matrix? Use "READSMDFILE"?
by YoungXu
Wed Jun 04, 2014 7:12 pm
Forum: Documentation
Topic: Dynamic ground motion
Replies: 3
Views: 4957

Dynamic ground motion

After I script "timeSeries Series 10 -dt 0.01 -filePath BM68elc.acc -factor 1
pattern UniformExcitation 2 1 -accel 10" and run this process, then the system tell me that "could not open file BM68elc.acc".
Please help me !!! Thanks!