Search found 17 matches

by Ulbong
Tue Aug 25, 2020 2:02 am
Forum: OpenSees.exe Users
Topic: multiple relative node recorder
Replies: 10
Views: 1965

Re: multiple relative node recorder

Thanks selimgunay. I mean the latter one. Can you give me a simple example scripts?
by Ulbong
Fri Aug 21, 2020 2:46 am
Forum: OpenSees.exe Users
Topic: multiple relative node recorder
Replies: 10
Views: 1965

Re: multiple relative node recorder

I'm trying to record 'various' relative displacements using many time histories at once like absolute ones (timeSeries Path command)
by Ulbong
Wed Aug 19, 2020 6:07 pm
Forum: OpenSees.exe Users
Topic: multiple relative node recorder
Replies: 10
Views: 1965

Re: multiple relative node recorder

Thanks Guys I'm trying to do dynamic analysis for 2nd D.O.F simple lumped massed model and I want to put various seismic force (time history) at once and get relative disp at once. I know that we can get them for absolute results using 'timeSeries Path' command, but I'm not sure there is way to get ...
by Ulbong
Wed Aug 19, 2020 2:10 am
Forum: OpenSees.exe Users
Topic: multiple relative node recorder
Replies: 10
Views: 1965

Re: multiple relative node recorder

Yeah selimgunay. I knew about that.
But I want to get multiple results at once like tag 1001 , 1002, 1003 ..
by Ulbong
Tue Aug 18, 2020 9:17 pm
Forum: OpenSees.exe Users
Topic: multiple relative node recorder
Replies: 10
Views: 1965

multiple relative node recorder

Hi Guys I know that I can make multiple absolute disp or acc. using 'timeSeries Path' like recorder Node -file MODE/M1.out -timeSeries 1001 -time -node 2 -dof 1 disp; recorder Node -file MODE/M2.out -timeSeries 1002 -time -node 2 -dof 1 disp; recorder Node -file MODE/M3.out -timeSeries 1003 -time -n...
by Ulbong
Sat Jul 11, 2020 9:55 pm
Forum: OpenSees.exe Users
Topic: Multiple Analysis for damping ratio
Replies: 1
Views: 546

Multiple Analysis for damping ratio

Hi Guys I have a problem for multiple simultaneous analysis. I want to change damping ratio (for now 0.05) for 2nd floor lumped massed stick model. But it's annoying that I have to change damping ratio on script each time. So I need to know how to get each results at one go. (different result file) ...
by Ulbong
Tue Jun 16, 2020 6:04 pm
Forum: OpenSees.exe Users
Topic: recorder Node -time & -timeSeries
Replies: 0
Views: 474

recorder Node -time & -timeSeries

Hi guys. I'm wondering differences between '-time' and '-timeSeries' command at 'recorder Node' command because I'm trying to do dynamic analysis for Lumped Massed Stick Model (2nd floor) and I want to compare each absolute accelerations and displacements results between SAP2000 and Opensees node on...
by Ulbong
Thu Jun 11, 2020 2:52 am
Forum: OpenSees.exe Users
Topic: Node fix problem for Modal Analysis
Replies: 2
Views: 799

Re: Node fix problem for Modal Analysis

# Unit (N,mm),2nd flr building set m 0.67 set A 40000 set I 13333.33e+4 set E 25000 set L 3500 model BasicBuilder -ndm 2 -ndf 3 node 1 0.0 0.0; node 2 0.0 $L; node 3 0.0 [expr 2*$L]; fix 1 1 1 1; fix 2 0 0 0; fix 3 0 0 0; mass 2 $m $m 0 mass 3 $m $m 0 set TransfTag 1 geomTransf Linear $TransfTag ele...
by Ulbong
Tue Jun 09, 2020 8:41 pm
Forum: OpenSees.exe Users
Topic: Node fix problem for Modal Analysis
Replies: 2
Views: 799

Node fix problem for Modal Analysis

Hi guy~ I'm trying to do modal analysis for 2nd floor lumped massed stick model on ndf-3 . And I want to compare each results between SAP2000 and Opensees. Here's my model below. O Node 3 I I I O Node 2 I I I I ㅡㅡㅡ Node 1 I fixed all of Node 1 and I fixed node 2 and 3 only Rz because the model doesn...
by Ulbong
Tue Jun 02, 2020 5:49 pm
Forum: OpenSees.exe Users
Topic: Absolute Acceleration of time history analysis
Replies: 3
Views: 976

Re: Absolute Acceleration of time history analysis

Thanks selimgunay
Should I make timesSeries before?
Cuz I got error " TimeSeries *getTimeSeries(int tag) - none found with tag: 1 "
by Ulbong
Mon Jun 01, 2020 4:56 am
Forum: OpenSees.exe Users
Topic: Absolute Acceleration of time history analysis
Replies: 3
Views: 976

Absolute Acceleration of time history analysis

Hi Guys I'm trying to time history analysis for a single D.O.F column. But I know that those results are "Relative" things. I want to get "Absolute" displacements and accelerations. but I don't know what's wrong. Here is my script below. # Define RECORDERS -------------------------------------------...
by Ulbong
Thu May 21, 2020 3:58 am
Forum: OpenSees.exe Users
Topic: Can I use Matlab commands on Opensees?
Replies: 3
Views: 907

Re: Can I use Matlab commands on Opensees?

Thanks a lot Diegotal !! I'll try the example !
by Ulbong
Wed May 20, 2020 10:54 pm
Forum: OpenSees.exe Users
Topic: Can I use Matlab commands on Opensees?
Replies: 3
Views: 907

Can I use Matlab commands on Opensees?

Hi Guys. I have some questions!

I'm wondering if I can write tcl scripts on Matlab.

and if I can use some Matlab commands for Opensees analysis

Have a nice day and Stay your home or lab. :)
by Ulbong
Wed May 06, 2020 10:54 pm
Forum: OpenSees.exe Users
Topic: Eigen Analysis not solved
Replies: 6
Views: 1856

Re: Eigen Analysis not solved

Ok Thanks!
by Ulbong
Wed May 06, 2020 5:30 am
Forum: OpenSees.exe Users
Topic: Eigen Analysis not solved
Replies: 6
Views: 1856

Re: Eigen Analysis not solved

Hey I just solved it.
For my one, I incorrectly set number of modes (2). because my model is just single dof column model.
I modified [set numModes 2] -> [set numModes 1] and it worked!