Tutorial: Simple Truss Structural Analysis in grasshopper with Kiwi!3D. Faster than Karamba & ETABS?
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- เผยแพร่เมื่อ 31 ก.ค. 2024
- A tutorial showing how to build a Simple Truss with Structural Analysis in grasshopper and Kiwi3D. Get deflection, bending moments, shear, axial load and more.
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Thanks! Keep it up. I love these structural parametric videos
Thank you for the video! Using the current version and cannot plug multiple supports into AModel. Rest seems to work but getting no results from that issue (tried with support curve which is working, but would need 2 point supports instead).
Thanks for the tutorial. My deformation model is displaying this error "1. Flying node limit was reached! The displacement of the respective control points is set to zero!", do you know what it means?
Hi - normally that means that something is discontinuous. Usually it's because some of the lines (or load points) don't meet in the same spot (sometimes you need to zoom in a long way to find this out). Otherwise it could be that there aren't enough supports and the whole system will just spin in space and can't be solved. Hope that helps.
@@StructuredParametrics You definitely helped me. I really appreciated it. Thanks again for the turorial, I'm exited to learn more from your content!
Thanks for your content and tools! Really helpful and very impressive.
I’m getting an error when solving my model which says “MyAnalysis coupe not find GPs!” I’ve found this refers to Gauss Points, and indeed when I decompose my model, the Gauss Points tree is empty. I have no idea what gauss points are with respect to beam elements. Any ideas on how to fix it?
A few basic things that sometimes help. See if the inputs are trees, lists or single data items - try flattening the inputs. Plug the inputs into a panel to check what is going into the component and is what you expect. Make sure there are no NULL items (if so, go back a few steps to find the origin of any NULLS being generated. With Kiwi, make sure the structure is determinant - if in doubt add more restraints at points or lock rotations at points etc. Hope that helps.
@@StructuredParametrics Thank you so much for your response! I've learned a few things from your response alone. I went ahead and posted the question to Dr. Bauer on the forum.
The error is "NodeLoad of ID 17 does not exist!"
Does Kiwi output nodal deflections? I have looked and it doesn't seem like it.
It gives a deformed model. The points can be extracted from that. We have a few components which show the difference between the original and moved points as a dimension in the viewport.
Hey, nice video.
When I try this problem I get this error from AnalysisModel.
1. Solution exception:Method not found: 'Void TeDaSharp.Elements.ElementCurveBeam..ctor(Int32, Int32, Double, Double, Double, Double, Double, Double, Double, System.Collections.Generic.List`1, Double, Double, Boolean, Boolean, Boolean, Boolean, Double, Double, Double, Double)'.
do you know what is the problem?
Just a guess but if your truss was modelled at the origin, the change of coordinate data from positive to negative could be the cause of the reaction forces pointing opposite ways
Might be yes
How can the units be modified? or even better wich are the units used by kiwi3d?
Kiwi3d is does not have predetermined units. If you keep inputs consistent, the outputs will be in the same units. More info here: discourse.mcneel.com/t/analysis-unit/86155
I have Kiwi 0.2.0. How can I updade it? I don't see kiwi in programs and components and I can't remove it.
Not sure sorry. Maybe try getting the new version and installing that over the old one?
How can we get the Rhino background youre using?
You can set any wallpaper in Rhino. The one I use is just a free abstract grey image.
Load value z = -10... i try this then my reaction go up