Strandbeest simulation (Jansen's Linkage)
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- Опубликовано: 28 авг 2024
- Mechanical simulation of a walking creature using Jansen's Linkage, the mechanism used in the "Strandbeest" created by Dutch artist Theo Jansen.
en.wikipedia.o...
Since this video seems to be attracting a few more views than I normally get, here's a bit more information. The software used to create this animation is a mechanical simulator that I have been working on since late 2014 in my day job as a software engineer for a manufacturer of industrial equipment. It uses Ogre 3D 1.9 for rendering and ODE (Open Dynamics Engine) for collision detection (not featured here) but has otherwise been built (by me) from the ground up as a Windows C++ application. Obviously Strandbeests are not our core business, but I occasionally do personal projects that push the boundaries of what the simulator can do, and this is one of them. The next one will feature Wall·E, based on STLs files found on Thingiverse, and I'll post a video here when it's done. Subscribe to be notified!
Imma try making this in Scrap Mechanic, this gives me ideas for massive law-enforcing mechs.
Мне очень нравятся такие штуки! Успехов вам! 🥇💫💖🕊
Ótimo trabalho 👏
Muito obrigado!
What I wouldn't give to be able to ride into town on one of these things...
Evil Genius seeking donations of 400 titanium rods & 1200 bearings, call me
Perfect Job
Thank you!
should make it into a windows live wallpaper lol
Falls off balance with only four legs
I don't doubt it for a second! :D
🙏 Namaste , Excellent work . Is it possible to to make a model at home? Thanking you.
Of course, many people make Strandbeest models, both physical and virtual. You can find the strut dimensions in my video or on the Wikipedia page for Jansen's Linkage.
Very impressive!😊
Could you tell me the title of the background music please?
Thanks! It's just stock music that comes with Adobe Premiere Elements: "Outer Space" in the "Ambient" category.
AT-AT?
Not really. AT-ATs have four knees like an elephant. This gait is quite different.
Теперь я знаю как построить большой имперский шагоход!!!!
Very good! Will you be be making a 'running' cycle?
Not sure how you see that looking different from just speeding up the video playback (which you can do if you like!) All that this simulation is doing is cycling the linkage to get the joint positions, and then making the centre of the whole beast follow a figure-of-8 pattern at a speed calculated (in advance) to synchronize with the linkages, so the feet appear to plant on the ground. Just geometry, no physics, so "running" would just be the same thing, quicker.
@@citolero It looks quite different to me as seen here: ruclips.net/video/N6wWiatT4xg/видео.html mostly the extended leg movement, body and head rocking.
@@ramonhamm3885 Well... that's a simulation of a horse and this is a simulation of a Strandbeest. The Strandbeest was never designed to emulate any existing animal. Its mechanism (Jansen's linkage) is deliberately constructed to have a single gait and work as simply as possible. Horses' different gaits are all about musculo-skeletal forces, gravity, energy efficiency and so on. All I'm doing here is cranking basic geometry.
This version has no soul or magic for me.
Boffo!
..How does this model change directions?
It's a purely geometric simulation with no physics, so there's no modelling of forces or friction on the ground and I didn't really give any thought to how the Strandbeest could turn in reality. It just follows a programmed path at a speed which matches the walking gait well enough to look like there's a connection. You can see though that the feet slip when it is turning tightly.
@@citolero I think it can be steered if you power 4legs with 4 moters
@@tharukasuranjanfernando4077 Yes, although the axles would need to be further apart in practice to avoid leg collisions at the top.
I'm not sure the details but some of the actual strandbeests can react to limited stimuli and change direction I think it has to do with the flexibility of the structure and motion of their sails. That doesn't apply to this simulation however.