algorithmic modeling for Rhino
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/buy.
downloads, manual:
https://manual.karamba3d.com/ or
www.food4rhino.com/app/karamba3d
examples (for Karamba3D 1.3.2):
release notes:
www.grasshopper3d.com/group/karamba3d/page/new-features-and-bug-fixes
scripting guide & examples:
https://www.karamba3d.com/download/#manual
repository with unit tests:
https://github.com/karamba3d/K3D_tests
Here a beam structure based on stream-lines with bending moments:
More details, manual, examples and download ....
This grasshopper discussion forum is no longer maintained - please post all questions on the McNeel Forum. Thank you
Hello:I want to know how to make a program and analysis the structure of shell waffle welding with the steel plate.I want to create the load for the steel plate(6 mm thickness) welding with the steel…Continue
Tags: Karamba
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Comment
Hi Niklas,
you have to make sure to split the lines into segments at their intersections otherwise Karamba will out put errors. Also make sure to flatten the input for the Elements in the Model-component. Please see the attachment.
MatthewTragwerk_MT.gh
Hey there
I am quite new to Karamba and would really need your help.
I am trying to analyze the structure for a new priject and I am struggeing with the supports (always the error: could not find node at ...)
Could someone have just a short look on that?
Thank you
Niklas
Tragwerk.3dm
Hello Wanggian,
in order to make the warning disappear you could change the upper limit of the cross section height from 65cm to some larger value.
Best,
C.
Hello,
I am encountering a problem with the optimize cross section.
I just download example file from http://www.karamba3d.com/examples/hard/large-deformation-of-a-shell/, but there is an error when I open it, like"151 cross sections need to be bigger than their biggest family member", so what should i do to correct it? .....I am new...
Thank you
Hi Earth, if you wish to run multiple analyses automatically, you can look at either optimisation processes such as Galapagos or Octopus or you can simply use a Data Recorder to record your results.
Best,
Matthew
Hi all, is it possible to run 100 karamba analysis automatically using different values of variables? and record the results? Thank you.
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
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?
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
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.
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