harmonic analyzer animation

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jmfriedt
Posts: 3
Joined: Mon Dec 30, 2019 1:28 pm

harmonic analyzer animation

Post by jmfriedt » Mon Dec 30, 2019 1:37 pm

Being interested in trying to become familiar with basics of mechanical computer design, I assembled a few animations of the harmonic analyzer [1], or at least the Fourier analysis fraction of its design. Since copying multiple times the same basic gear setup is boring, I wrote the script for automatically generating both the mechanical setup as well as the animation. All files are found at
https://github.com/jmfriedt/harmonic_analyzer_FreeCAD
and movies of the animations are at https://github.com/jmfriedt/harmonic_an ... ster/video
All animation techniques are based on [2] which I found after watching [3]

Further work might involve generalizing to the full harmonic analyzer or possibly the tide predictor, depending on available time and motivation.
For the French reading audience, a draft of the manuscript written while performing these development is at http://jmfriedt.free.fr/hackable_mecanique.pdf which might or might not be published depending on the interest of the editor of the French Hackable journal. I might translate to English if there is any interest.

[1] https://www.youtube.com/watch?v=GyYflzRVu6M and http://www.engineerguy.com/fourier/pdfs ... alyzer.pdf
[2] http://linuxforanengineer.blogspot.com/ ... anism.html
[3] https://www.youtube.com/watch?v=BHbnOlBvpLI
vocx
Posts: 2841
Joined: Thu Oct 18, 2018 9:18 pm

Re: harmonic analyzer animation

Post by vocx » Tue Dec 31, 2019 5:58 am

jmfriedt wrote:
Mon Dec 30, 2019 1:37 pm
Being interested in trying to become familiar with basics of mechanical computer design, I assembled a few animations of the harmonic analyzer...
That's good and all, but you could have posted at least one image here.

What's the point of opening a thread and just linking to a bunch of external pages? Post something nice here so that users get interested in looking at your links. That's the whole point of this subforum.
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iplayfast
Posts: 71
Joined: Sat Sep 07, 2019 6:55 am

Re: harmonic analyzer animation

Post by iplayfast » Tue Dec 31, 2019 6:51 am

This is what he's working on. Very cool project.
Image
jmfriedt
Posts: 3
Joined: Mon Dec 30, 2019 1:28 pm

Re: harmonic analyzer animation

Post by jmfriedt » Tue Dec 31, 2019 6:53 am

Image

Thanks. I was unable to figure out how to include images in my post.
jmfriedt
Posts: 3
Joined: Mon Dec 30, 2019 1:28 pm

Re: harmonic analyzer animation

Post by jmfriedt » Tue Dec 31, 2019 8:29 am

Same, but replacing cylinders with gears for a more realistic model that could even be manufactured I believe.

Image
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Kunda1
Posts: 6463
Joined: Thu Jan 05, 2017 9:03 pm

Re: harmonic analyzer animation

Post by Kunda1 » Tue Dec 31, 2019 12:29 pm

Thanks so much for posting your project, OP. Very impressive and quite captivating to look at.
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