Search found 23 matches

by carlos
Mon Jan 07, 2013 8:09 am
Forum: Framework
Topic: Error in Example 1. quickmain
Replies: 0
Views: 994

Error in Example 1. quickmain

Hello, I think that there is an error in the main function of the quickmain project. In version 2.2.1 there is reported one change in code: 2. redo of how tags were cimplemented for MP and SP constraints I think that since that version, the SP constrains definition in the main function should be: //...
by carlos
Wed Dec 21, 2011 4:30 am
Forum: Framework
Topic: Compiling issues on Opensees 2.3.2
Replies: 0
Views: 801

Compiling issues on Opensees 2.3.2

Hi, I have experienced some issues during downloading and compiling Opensees V2.3.2. 1. The link in the developers area os for the 2.3.0 version. At least this is the name of the zip file. 2. Then I have downloaded the 2.3.2 version frm SVN. It works OK. 3. Using Visual C++ express I tried to open t...
by carlos
Mon Apr 12, 2010 10:28 am
Forum: OpenSees.exe Users
Topic: zerolenght element to simulate hinge
Replies: 14
Views: 5364

Hi Aizen, The element 1 (beam between 1 and 2) is able to rotate free in their axis if you only fix the translations DOF, so this is in my opinion the cause of the error. This is similar to modelizate a simply supported beam fixing the 1, 2 and 3 DOF. Usually this fails. This only happens in your mo...
by carlos
Fri Mar 12, 2010 11:24 am
Forum: OpenSees.exe Users
Topic: Simple mass-spring model
Replies: 3
Views: 1585

Hello, I'm not familiar with Uniformexcitation loads and they do not appear in the post, but I think that there are some wrong things in your code: Your sample is uniaxial but you are using a 2D model I think the Y degree it is not fixed (the zerolength is only for X degree). You could try with equa...
by carlos
Fri Mar 12, 2010 8:58 am
Forum: OpenSees.exe Users
Topic: No-linear model with rotational spring
Replies: 2
Views: 1925

Hello, if there is a non linear problem, I would suggest you to apply the load in several steps changing for example integrator LoadControl 0.1 analyze 10 The other possibility is that the system it is not stable. For me the other question is a little bit surprissing as it should stop the analysis a...
by carlos
Sat Jan 23, 2010 8:16 am
Forum: Framework
Topic: We are collecting OPENSEES User-Requirements Data
Replies: 15
Views: 29463

Hello, In my opinion the most required feature is to have a pre-processor and a post-processor. In order to integrate the OPS framework with geometric packages in an easier way, I think that some features are needed: Possibility of obtaining Rigid body shapes in eigen analysis. Now it is quite diffi...
by carlos
Fri Apr 24, 2009 9:48 am
Forum: Framework
Topic: record global stiffness matrix
Replies: 12
Views: 11697

Hi Frank, I can imagine from your answer that you are preparing a new version for the Parallel Workshop. 1. Is this new feature of adding external solvers related with Parallel computing or is an indepentent one.? 2. Will you include also additional solvers or we must develop them?. 3. I'm specially...
by carlos
Fri Jul 11, 2008 9:49 am
Forum: Framework
Topic: Couple OpenSees with VTK?
Replies: 5
Views: 4338

Hi, I would recommend you to have a look to OpenCascade: www.opencascade.org I think it is quite similar to VTK, it is free (even for commercial uses) and it also supports TCL. Of course there are also some "minor problems" as there is not any official support. There is another related code, Salome,...
by carlos
Fri Apr 25, 2008 7:55 am
Forum: Documentation
Topic: Documentation of the 2007 Opensees Workshop
Replies: 1
Views: 4152

Documentation of the 2007 Opensees Workshop

Hello Silvia,

Are the presentations of this workshop available for downloading?

Regards,

Carlos
by carlos
Fri Apr 25, 2008 7:50 am
Forum: Parallel Processing
Topic: Some questions about Parallel procesing
Replies: 2
Views: 6329

Some questions about Parallel procesing

Hello, I have installed MPICH2 on my Core duo labtop running with Windows XP and I also have been checking the presentations of the workshops. I have some doubts about how to run a script with parallel computing. I'm able to run Opensees.exe an existing script on both processors using: mpiexec -np 2...
by carlos
Thu Sep 06, 2007 12:19 pm
Forum: Documentation
Topic: Documentation of the 2007 Opensees Workshop
Replies: 1
Views: 4278

Documentation of the 2007 Opensees Workshop

Hello Silvia,

I hope you have enjoyed your long holidays, in the european style.

Could you please tell me if the presentations of the last workshop will be available?

Regards,
by carlos
Sat Aug 25, 2007 11:55 am
Forum: OpenSees.exe Users
Topic: Download Source Code
Replies: 2
Views: 1947

Hello, You can also download the file for the Unix version (http://opensees.berkeley.edu/OpenSees/code//OpenSees1.7.4.tar.gz). I did it and I descompresed it with Winrar. As it is stated on point Nº. 4 of the source code distribution chapter, it contains the same code that the Windows version. (The ...
by carlos
Tue Aug 14, 2007 12:11 pm
Forum: Framework
Topic: Parallel Version
Replies: 7
Views: 6417

Parallel Version. V1.7.4

Hello, I have read on the change log of the V1.7.4 version that has been added some code for building a parallel version. Unfortunately, I have checked the source code (the link of the windows version is not rigth. I have use the link for the unix version) and I have not found any instructions or so...
by carlos
Thu Feb 15, 2007 9:25 am
Forum: Framework
Topic: Parallel Version
Replies: 7
Views: 6417

Parallel Version

Hello, I have a new laptop. It has an Intel Core 2 CP T7200 @ 2. GHz processor with 1 Gb RAM. Opensees V1.7.3 runs only at 50% of the capacity of the computer. I heared and read something something about parallel version of OPS but I'm not sure if this applies to this case. Could you give me some ad...
by carlos
Fri Aug 25, 2006 1:16 am
Forum: Framework
Topic: Modifying the example N. 1 (C++ source code without TCL)
Replies: 5
Views: 6705

Hello Frank, I not really interested on modify the code, only on using it. I have seen that exist the file corotational.lib and that the binary file Opensees.exe works with the Corotational transformation. I think that my real problem is that I'm not skilled on C++ and I do not know how to compile t...