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algorithmic modeling for Rhino

Information

Karamba3D

Karamba3D is a parametric structural engineering tool which provides accurate analysis of spatial trusses, frames and shells.

Current Version: 1.3.0 WIP (March 4 2018)

Website: http://www.karamba3d.com
Location: Vienna
Members: 956
Latest Activity: on Friday

Karamba3D is an interactive, parametric finite element program. It lets you analyze the response of 3-dimensional beam and shell structures under arbitrary loads.

Karamba3D is being developed by Clemens Preisinger in cooperation with Bollinger und Grohmann ZTGmbH in Vienna.

Download a free trial now! Licenses for educational or commercial purposes can be purchased at www.karamba3d.com/download.

Stay up to date with the development of Karamba3D by joining our Grasshopper group where you can post your queries, requests or issues for Karamba3d.

 

downloads, manual:

www.karamba3d.com/download or

www.food4rhino.com/app/karamba3d

examples (for Karamba3D 1.2.2):

www.karamba3d.com/examples/

update report/known bugs: 
www.grasshopper3d.com/group/karamba3d/page/new-features-and-bug-fixes

Here a beam structure based on stream-lines with bending moments:


 

More details, manual, examples and download ....

 

 

Discussion Forum

Principal Stress Direction 3 Replies

Hello, I have a question about the principal stress direction analysis result from karamba.The first principal stress direction (PSD) is usually defined as the direction of the largest principal…Continue

Tags: direction, stress, principal

Started by X.Arthur.Ma. Last reply by Karamba3D Sep 17.

Karamba Cross Section Optimization 10 Replies

Hello everyone.I'm new to Karamba and I'm wondering if it is possible to optimize the cross-section of a shell, but not by picking from a list of standardized cross-sections.The picture below is that…Continue

Started by Erik Pelicaen. Last reply by Karamba3D Sep 5.

Cable net Modeling 1 Reply

Hello Everyone,I’m currently creating ( in Rhino 6 and Grasshopper 1.3 ) a Karamba model for the study of Cable Nets. This Cable Net is Façade Structure System of a Tall Buildings. (Cable Net + Glass…Continue

Started by MoStafa. Last reply by Karamba3D Sep 3.

Model formatter.Deserialize - problem with casting karamba Model to GH_Model 2 Replies

Hi there,Could someone help me with the following issue that came along? I'm creating components in visual studio, C#.I successfully 'externalised' a Karamba Model by saving it as a text-file. Class…Continue

Started by Lennert Loos. Last reply by Lennert Loos Sep 3.

Comment Wall

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Comment by Márcio Sartorelli on June 14, 2018 at 12:38pm

Dear Jhoseph,

In these situations I usually generate loadcases for each type of Load, as Karamba analysis is linear is not a problem to magnify the design loads after the analysis.

To test diverse load combinations I generate scripts that take the caractheristic values from the analysis and returns all the design combinations. My undergraduation thesis is the creations of plugins that apply Eurocode 5 for verification of timber structures and i'm using this a lot, please fell free to contact me for further explanation.

Cheers.

Comment by Jhoseph =) on June 14, 2018 at 11:43am

Hello Karamba team!!!

How could I perform the following load combinations in karamba?

Thank you! 

Comment by Karamba3D on June 3, 2018 at 11:51pm

Dear Leonie,

the problem in your definition with multiple voxels is, that you provide one mapping only. This means that all upper and lower voxel boundaries are handled like one upper or lower girder of a truss. Due to this there are voxels with no connections at all (see attached definition 180531_stitchedsystem_multipleVoxels_LE_CP.gh) which cause rigid body modes. In order to solve the problem reduce its complexity and start with two voxels only.

Please open a new discussion on the subject since it is easier to follow and find for others as compared to a comment on the comment wall.

Best,

Clemens

Comment by Leonie Eitzenberger on May 31, 2018 at 1:29am

Dear Karamba Team, 

I have a question concerning a Problem in my studies with Karamba.

I have a "voxel system" (Bounding boxes for a later on Geometry)(01_Image). I took the upper and lower edge curves from the the boxes to apply in between some optimized diagonals(optimization of the position of the points on the lines) for that I am using the Idea of Element Felting and the mapper component(+ the different stich possibilities). For one Box(02_Image) it works totally fine but by applying it on all my voxels it does not work how I imagine. So the aim for me is that every box has its own diagonals. Concerning the set up I just set up a fast Karamba model the supports and the loads will be than later on in a more detailed way defined. 

Could someone help me applying the system on all voxels ?

Thank you!

All the Best,

Leonie 

I uploaded two scripts the one for one voxel where the system works and the "multiple Voxels" scripts where it doesnt work.

The Images should show the one voxel and the Idea and the other image the basic voxel massing.

180531_stitchedsystem_multipleVoxels_LE.gh

180531_stitchedsystem_onetestobject.gh

Comment by Ollé Gellért on May 21, 2018 at 6:03am

Thank you very much Matt! This solution is working. You saved my life! ;)

Comment by Matthew Tam on May 21, 2018 at 4:43am

Hi Ollé,

you can use the DiassembleModel and then the DisassembleBeam to extract the cross section sizes of the beams and you can create the meshes in Grasshopper for printing.

Matthew

Comment by Ollé Gellért on May 19, 2018 at 9:53am

Hello Karamba,

I have a question about how I could create a printable model from cross setion optimized structure? I have optimized beams but those are tubes not solid meshes. 

I have an idea how I can get some closed meshes. If I can get somehow the cross section radius data from the algorithm I could generate meshes with cocoon component. Which is the easyest way to get a printable model?

Thank you! 

Comment by Jhoseph =) on May 11, 2018 at 1:08am

Is it correct to place the 2 assamblies: karamba.gha and karamba.dll ?, I added the 2, I read in the manual that karamba.gha should be added, maybe that is why the example of the component "TenComElim" does not work. I just reinstalled Karamba and those 2 assamblies keep appearing. Why does the "TenComElim" component not work? It does not recognize the code Karamba.Models.Model model = (Karamba.Models.Model) inModel; does not recognize the classes !!!

Comment by Matthew Tam on May 11, 2018 at 12:29am

Hi Jhoseph,

why do you need to remove the Assemblies? Can you simply uninstall Karamba and reinstall it so that all the files are replaced?

Comment by Jhoseph =) on May 10, 2018 at 3:31pm

hello, Karamba, i am learning karamba, and I need to remove assemblies, I added the karamba.dll and karamba.gha files, but I think that only the karamba.gha file was necessary, how can I delete those assemblies? . I also have another problem because of the aforementioned and that is not open the example 'TenComElim', the script turns red and does not work, does not recognize the following code: Karamba.Models.Model model = (Karamba.Models.Model) inModel;
Add the karamba.gha file that is also in the example but it does not help much, that is why I want to eliminate the assemblies and replace the necessary ones.

I have Karamba 1.3 and Rhinoceros 6

 
 
 

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