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Mechanical Engineering
Optimisation software for trusses (or frames)
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[QUOTE="Vigardo, post: 6283402, member: 445744"] I've been playing around with a partial free solution. The [URL='https://www.food4rhino.com/app/peregrine#downloads_list']Peregrine plug-in[/URL] (it's free until July 2020) for Grasshopper performs some kind of topology optimisation for lattice structures. It is based on linear programming and is quite fast, at least for 2D trusses. It lacks global buckling checks but performs some final Euler buckling of individual members and increases mass accordingly in the final stage. Thus buckling effects are not considered during optimisation. In any case, currently available Peregrine version seems to be just a technology demonstrator, so improvements may be included in the near future. The same developers have [URL='https://limitstate3d.com/limitstateform']LimitState:FORM[/URL], another software that seems to be what I'm looking for (something more intended for engineering than for architecture), it's too expensive (built on ANSYS SpaceClaim). There also exists an open-source plug-in for Grasshopper called [URL='http://digitalstructures.mit.edu/page/tools#plugins']Stormcloud [/URL](based on evolutionary algorithm - check [URL='http://digitalstructures.mit.edu/files/2015-09/iass2015-524698.pdf']paper[/URL] or [URL='https://www.youtube.com/watch?v=bg2ZdTZTdiM']demo video[/URL]) that is available within the Design Space Exploration tool suite at Food4Rhino [URL='http://www.food4rhino.com/app/design-space-exploration']here[/URL]. They also have [URL='http://web.mit.edu/caitlinm/www/structurefit/']structureFIT[/URL], an on-line optimisation tool for planar trusses. I've found also some ancient code named [URL='http://members.ziggo.nl/wolsink/']Framework[/URL], with tons of pdf info. At this moment the [URL='https://www.food4rhino.com/app/karamba3d']Karamba3D plug-in[/URL], Galapagos and Grasshopper seems the best option. Karamba has Educational licenses for 30 € and works with [URL='https://www.karamba3d.com/examples/simple/parametric-truss/']trusses[/URL] and [URL='https://www.karamba3d.com/examples/moderate/buckling-bridge/']buckling[/URL]. [B]Any other alternative?[/B] [/QUOTE]
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Optimisation software for trusses (or frames)
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