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Information

Karamba

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

Current Version: 1.2.2 (October 6 2016)

Website: http://www.karamba3d.com
Location: Vienna
Members: 754
Latest Activity: 11 hours ago

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

karamba is being developed by Clemens Preisinger in cooperation with Bollinger-Grohmann-Schneider ZTGmbH Vienna.

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

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

 

downloads, manual:

http://www.karamba3d.com/downloads or

http://www.food4rhino.com/project/karamba

examples (for Karamba 1.2.2):

http://www.karamba3d.com/examples/

update report/known bugs: 
http://www.grasshopper3d.com/group/karamba/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

MeshLoad to LineLoad 10 Replies

Hi.I am trying to analyse a simple planar beam structure. I want to apply a surface load as lineLoads on each beam element. But when using the MeshLoad component and telling it to generate line-loads…Continue

Started by Rasmus Holst. Last reply by Balazs Kisfali 16 hours ago.

Information of load/stress values for mesh points 9 Replies

Hey everyone!I have a pretty simple question:If I have my mesh which I analyse as a shell in karamba, is there a way of obtaining the information of how much stress forces act upon each seperate…Continue

Tags: values, stress, points, Mesh

Started by Cristina Nan. Last reply by P A yesterday.

Structural Analysis of Minimal Surface Form 1 Reply

I have a mesh that I've produced on Grasshopper, I'd like to use Karamba as a tool for structural analysis and finding where the weak points of the mesh are.I've used this YouTube video…Continue

Started by Leonardo Ali. Last reply by karamba yesterday.

How to make a program and check how much heavy the helix bench can support?

Hello everyone:How to make a program by using the karamba and check how much load the helix bench can support? It's mean that how much weight it will be broken?This is titanium 6mm thick 150mm wide.I…Continue

Tags: karamba

Started by ma qingsong on Tuesday.

Comment Wall

Comment

You need to be a member of Karamba to add comments!

Comment by karamba on April 8, 2017 at 4:36am

Hi Martin,

you could use short connector beams with corresponding joint definitions at their ends.

Please open a new discussion if you want to discuss the matter further. The comment wall is not so well suited for that.

Best,

Clemens

Comment by Martin Engdahl on April 4, 2017 at 12:09pm

Hi!

I just downloaded Karamba trial about an hour ago, and I cant get going with my model. I have an interlocking structure (eggcrated, see picture: there is an error in that the long beams should rest on the arcs, not the other way around as it is now) that is to be glued together. How would I set up an analysis like this? 

Comment by Silvia Picone on February 16, 2017 at 8:56am

I going to have a look! thank you Marcio Sartorelli! I have added a new discussion for my problem as Clemens suggested! I will write you under my new discussion later

Comment by Márcio Sartorelli on February 15, 2017 at 12:09pm

Hello Silvia,

For deck weight you should model a mesh of it and add a Mesh Load component including the nodes you want to consider (See Karamba manual for details, also in the previous comments I helped ma qingsong with a similar problem).

For wind and wave analysis you should first check for the structure vibration modes (For wind the first frequency should be >1.5Hz, i'm not sure what frequency band you need for waves). Grater stiffness and less mass helps to increase the frequencies. Once you achieved those results you can make a statical analysis considering these loads, again i'm not sure what to do for wave loads, but for wind I normally use the method used in this video: https://www.youtube.com/watch?v=-t3yE1xxMUo (it's a very simplified method, but do it's job).

I can take look on your GH definition tomorrow.

Comment by karamba on February 15, 2017 at 12:06pm

Dear all,

could you please add a new discussion in case of questions? Postings on the comment wall are hard to follow and not easy to find by others.

Best,

Clemens

Comment by Silvia Picone on February 15, 2017 at 10:28am

Hello everyone! 

I'm doing my final project to graduate in engineering. What I'm trying to project is a footbridge that sail along the coast supported with puncheons. I am new in Karamba. When I considerate loads I had problems how to considerate wave, wind loads and the deck weight. how can I simulated all these loads?

bordo%20linea%20strada.3dm

FootbridgeKaramba.gh

Comment by ma qingsong on January 30, 2017 at 7:09pm

Dear Márcio:

You are very friendly. Thank you so much.

I'm sorry about that I did not describe the problem right. My English is bad.

I means the waffle structure and 6mm steel plate are Welded together. They become the overall structure, and I give the strong power to the overall structure to check the displacement. As it is shown in the image, the green plate is the steel plate, the yellow is the waffle structure. The overall structure is the waffle structure and steel plate are Welded together. How to analysis? Could you help me finish the program again?

Thank you very much.

Comment by Márcio Sartorelli on January 30, 2017 at 7:12am

Hello Qisong,

See attached the changes I made. To parametrize the thickness of the plate you just need to multiply its material density with the thickness (going from kN/m³ to kN/m², or just from volume to surface load).

ma20170129.gh

Comment by ma qingsong on January 30, 2017 at 6:45am

Hello Márcio,

Thank you for your answer.

Normally I have done as you said. But it's no relate to the thickness of the steel plate. I want to change the thickness of the steel plate to check the displacement of the waffle structure. I uploaded the part of the program. Could you help me finish the program? Thank you very much.

ma20170129.gh

Comment by ma qingsong on January 30, 2017 at 6:36am

Hello Márcio,

 
 
 

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