Comments (5)
Also i think it might be a good idea to feed in the other origin coordinates to the CylinderRingMesh
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Thanks for bringing this to my attention. I've made the fix to the repository. The fix will be included with the next release of Pynite
.
The CylinderRingMesh
does not have the same issue as far as I can tell, since it only deals with a single course of plates about its origin. The CylinderMesh
dealt with multiple courses, which required use of the variable y
that changed with each successive course.
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@JWock82 Awesome! This library is helping me so much especially using https://sectionproperties.readthedocs.io/en/latest/ to get accurate 2D fea and moments of inertia.
I really like the load cases and combos, thats helping me alot doing some wind turbine analysis with complex loading.
2D FEA helps alot too with complex deformation and optimizing for low weight
I have a somewhat ready integration between these two libs here, but its not really documented well yet (on my very long todo list :)
https://github.com/Ottermatics/ottermaticslib
https://ottermatics.github.io/ottermaticslib/build/html/ottermatics.html#module-ottermatics.structure
I was thinking it would be a cool idea to use the shapley.exterior
polygon to render the beam exterior through VTK in pynite but I'm still pondering an integration or how to extend the PyNite.render_model
.
Would some kind of integration between any three of these libraries be interesting to you? We could save alot of time by building a common material class for example
from pynite.
What you're doing here is really cool! I'm very impressed!
I'm all for integrating libraries, as far as software license rule issues don't get in the way. Pynite is very liberal (MIT license), but my understanding is that GPL libraries are "viral" and may not be able to be integrated fully with Pynite without changing Pynite's license to GPL too.
The biggest hold up for me is that I just don't have a lot of free time myself. I like you have a very long "to do" list. Right now I'm focused on simplification and modularization of the analysis code. This will make it easier to implement new types of analysis in the future (dynamics, pushover, etc.).
Then there's units, steel design, concrete design, shear wall analysis, triangular plate elements, delauney triangulation for meshes, von-mises stress results... the list just keeps on going.
One of these days maybe this project will attract some funding to boost development. Until then, it's a volunteer effort that moves a little slower.
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@JWock82 Thanks! I feel we're both probably aiming at the same problem... making the hard engineering problems easier!
I am completely on the same page about lack of time and resources, theres a million things to do that should be done, but I can only do one at a time. Perhaps this is the case for some kind of joint open-source engineering foundation. To attract some resources as you point out to make it self-sustaining, and that should be totally reasonable your project makes free what some charge for quite a bit.
The timescale for my project is years as I'll be doing this stuff the rest of my life so I guess I'm not in a rush to the finish line! To your point about licenses I think both ottermaticslib
and sectionproperties
are MIT so that is at least one less problem to consider. I am currently thinking about rebranding my project to seem less proprietary and more open-source.
For your refactor you may want to consider some meta-programming techniques that are in ottermaticslib
since that allows some reliable class customization. The attrs
framework overrides the init method so you have a reliable Input interface you can derive knowledge from about types ect. This allows the tabulation of input separately from output with the custom_decorators
strategy. You mark functions by purpose and can validate their IO and do stuff like caching or plotting. This is all kind of experimental but focusing on class modification before creating an instance helps to solve composition problems that would have otherwise been handled in __init__
.
That strategy has helped me a ton since I am usually writing custom analysis for complex systems with lots of variables, when it all shakes out you get a dataframe with the hierarchy of variables with minimal effort. In the structures module of ottermaticslib
I'm working towards organizing this dataframe by load combo and beam x-position in the Structure
class but thats a WIP. Thinking there might be some interesting benefits to creating a networkx
graph to identify contiguous beams and then plot forces / moments / stress on them to reduce the apparent dimensionality.
I could probably talk about this stuff all day so if you ever want to reach out feel free to connect at [email protected]
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Related Issues (20)
- New release with new array and plotting features? HOT 2
- PhysMember with AuxNodes Bug [Solution Included] HOT 1
- Implement rotational springs? HOT 3
- Discontinuities in moment, deflection diagrams HOT 8
- Cannot create PDF report HOT 2
- Post-processing - analysis fails for two span beams HOT 2
- Define hinge at a member HOT 2
- What is "matrix is singular" error? HOT 4
- FR: Make Matplotlib optional HOT 2
- Error Creating Members with Aux Nodes HOT 4
- Reaction force - Equilibrium problem HOT 18
- Rotational Symmetry HOT 3
- Incorrect (Zero) Reaction Observed in Z-Direction for Cantilevered Beam with Spring Supports HOT 4
- 'Quad3D' object has no attribute 'LoadCombos' HOT 2
- RuntimeWarning: divide by zero encountered in double_scalars HOT 2
- Displacement Memory Growth & Purge Option + Disk Caching of Displacements HOT 3
- P-Delta Member Internal Results Incorrect HOT 1
- PyNite Import Issue HOT 3
- Tension-only members HOT 3
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