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karamba's Discussions

installation - troubleshooting
1 Reply

Hello Tudor Cosmatu, hello Sebastien Perrault!We tried to reproduce your problems regarding the installation of Karamba but haven't succeeded yet.Could you please give us more detailed information…Continue

Tags: problems, misc, installation

Started this discussion. Last reply by BenjaminMoore Feb 1, 2011.

 

karamba's Page

Latest Activity

karamba replied to Umar Hossain's discussion Simple shell element FEA in the group Karamba
"Dear Umar, the output of the reaction forces correspond to the local coordinate system provided when creating the supports. This is not made clear in the help-text of the 'Reaction Forces'-component. Thank you for your hint! If one removes…"
Jun 8
karamba replied to Umar Hossain's discussion Simple shell element FEA in the group Karamba
"Dear Umar, could you please internalize the boundary curves or add the 3dm-file? Best, Clemens"
Jun 7
karamba replied to Balazs Kisfali's discussion Cross section optimisation with min. size members in the group Karamba
"Hi Balazs, you can define your own cross section families. For each beam the optimizer starts to look at the first cross section in the family list. In case it is sufficient the cross section is chosen, otherwise the optimizer procedes to the next…"
Jun 7
karamba replied to Gefan Shao's discussion Material Library in the group Karamba
"Dear Gefan, you can define your own material using the 'Material Properties'-component. The important material properties you need to look up (e.g. on the Internet) are the materials stiffness (i.e. Young's Modulus) and the long term…"
Jun 7
karamba replied to Gwenaël's discussion Snow load on roof structure in the group Karamba
"Dear Gwenaël, the mesh for applying the MeshLoad need not be part of the model. The loads on the loaded mesh will be transferred to the closest nodes of the structural model (see manual). By limiting the elements where the loads shall be…"
Jun 7
karamba replied to ShynnSup's discussion Optimize Cross Section Example Definition not Working as Expected in the group Karamba
"Dear ShynnSup, in the GH definition we added supports along the edges at the end of the bridge to make the example more realistic. If you switch back to supports just at the edge nodes (see attached definition) the result corresponds to the image. I…"
Jun 7
karamba replied to Merijn de Leur's discussion Finding the most loaded element in the group Karamba
"Hi Merijn, you could try this: search through the meshes which result when rendering the elements utilization and draw a sphere about the vertex where the color corresponds to the maximum of the color legend. Best, Clemens"
May 30
karamba replied to Inés Ariza's discussion Scripting Karamba in IronPython in the group Karamba
"Karamba.Utilities.ToGH is used to create the GH-wrappers about the items of a list, FromGH removes them (see attached file). Best, Clemens"
May 29
karamba replied to Inés Ariza's discussion Scripting Karamba in IronPython in the group Karamba
"Dear Inés, sorry for my late reply - I was on holiday. One has to wrap the 'GrassShell'-object in a Grasshopper wrapper object - 'GH_Element' in this case (see attached definition). For each Karamba object which can float…"
May 29
karamba replied to Jaime Cordero's discussion Optimize Section Error in the group Karamba
"Hi Jaime, you used a WIP version of Karamba which had a bug. Please use the current WIP version. Best, Clemens"
May 29
karamba replied to Balazs Kisfali's discussion Angular steel cross sections to cross section table in the group Karamba
"Hi Balazs, use an I-profile with zero lower flange width. Best, Clemens"
May 29
karamba replied to Lukas G's discussion Intersectiom Joints in the group Karamba
"Hi Lukas, you could use a spring with only translational stiffness. Best, Clemens"
May 29
karamba replied to Balazs Kisfali's discussion Angular steel cross sections to cross section table in the group Karamba
"Did you try to import a small part of the larger table - e.g. one line? With the 'Generate Cross Section Table' component you could export an arbitrary T-cross section and then compare the output to your table. Best, Clemens"
May 24
karamba replied to Balazs Kisfali's discussion Angular steel cross sections to cross section table in the group Karamba
"Dear Balazs, if a beam is not supported along its axis, buckling will always occur about the weak axis. Karamba assumes that the local Y- and Z- axes correspond to the principal axes of the cross section. In your case that would be Iv and Iu. So…"
May 24
karamba replied to Lukas G's discussion Intersectiom Joints in the group Karamba
"Hi Lukas, you could use short springs to connect the beams of the different layers: choose the translational stiffness very large to come close to a rigid connection, select small values for the bending stiffness (e.g. 0.1 kNm/rad). Best, Clemens"
May 22
karamba replied to Kendrick Tay's discussion Glulam Simulation in the group Karamba
"Hi Kendrick, at the moment (version 1.2.2) there is this limitation for the transverse shear stiffness you mention. In version 1.3.0 this limitation will be lifted. The shear stiffness influences the results only in case of very compact…"
May 22

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Karamba's Blog

Online Tutorials - Karamba <> Revit Workflow

Junghwo Park has created 4 video tutorials explaining different workflow processes from Karamba and Revit using Dynamo and Geometry Gym. The full definitions for all 4 tutorials will be live on our website shortly!

https://www.youtube.com/watch?v=WenifJiq9Wc&list=PLuMiJ9JUcOVlveKuPZ1pet0hWaB2N1wM5

See all 4 different tutorials on our Grasshopper…

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Posted on January 8, 2016 at 10:00am

karamba video tutorial 02 - simple parametric truss

http://www.youtube.com/watch?v=D7CRgV1652k

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Posted on June 11, 2012 at 7:37am

karamba video tutorial 01 - simple parametric beam

http://www.youtube.com/watch?v=NSpA5uveAaA

this video tutorial explains the first steps using karamba, creating a parametric structural model.…

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Posted on June 11, 2012 at 7:29am — 1 Comment

Music Pavilion - Salzburg Biennale 2011

The primary design intent for the art pavilion was to create a recognizable presence for contemporary productions in Salzburg, a city that is predominantly known for classical music. The main user of the pavilion is the Salzburg Biennale, a festival for contemporary music.

A 2-meter long aluminum profile is arrayed to create oscillating spatial effects. The single sticks merge into a mass-like structure that changes its appearance during the day according to different light conditions.…

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Posted on January 27, 2011 at 5:30am — 1 Comment

Comment Wall (5 comments)

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At 4:22pm on December 9, 2016, Alexia Ch said…
Can someone help me with the definition of karamba cross range selctor connected to galapagos?!?!?!
At 9:36am on November 2, 2014, ghaith Tish said…

Hi,

Thanks for the reply.It was  an attempt to see how far can I go with the form finding using karamba for my master thesis .I was trying to simulate core material.I discovered It is not realistic to do this in grasshopper since that needs professional fem software "3d meshes ".I am now using Autodesk robot to simulate different iteration of the model to prove it works first.Then I will look if it is that important to use the interface between grasshopper and the fem software.I would appreciate any advice from you.I am also looking for buckling analysis to evaluate modes to refine my design for modal displacement and deflection later on. 

At 11:49am on October 15, 2014, ghaith Tish said…

Hi,

I am trying to get an inner structure for a shell design that I am designing.I have tried this simple unite using the shell element in Karamba but the results are far beyond expectation.My reference was the waffle gh file in the examples.for the inner structure.The meshes are fine the first image shows the millipede solver result.So the problem is not a mesh problem and not a material problem because I tweaked the materials with no improved results.is it a shell element problem that I don't know ?? 

The backed image shows the inner walls without the outer ones although the outer ones are included in the calculation.

At 4:59am on February 25, 2013, djordje said…

Hi Karamba,
I know that all of you are quite busy and trying to help users as much as you can.
As was just wondering if you could take a look at thistopic related to buckling of members in Karamba. Robert started replying but, he might be busy until the end of the week.
So if you have some tiny amount of spare time, I would be very grateful.

Danke.

At 6:07am on January 23, 2012, andreas P said…

I understood the FFFcomponent as a tool to eliminate the less used beams.

the TCE defines the most usage in compression <OR> tension. i think i need both criteria.

+ there is the old problem of leafing single beams, what doesn´t look useful at all.

-however I just wanted to redefine our work of the workshop - i wasn´t able to craete the same structure -yet ! 

 
 
 

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