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Old 16th July 2019, 01:40 PM   #3061
nocdplz is offline nocdplz
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Join Date: May 2010
Location: italy
...Balls seem to be ideal, they work so great... -- off topic.

Walter, Eduard: Lil Casey sounds good, but this (attachment) sounds better. By far the best i've built in ten years. Seems a common pivoted, but looking inside it differs from the others at least as much as the radial rail from usual tangential trackers.

carlo
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Old Today, 01:50 PM   #3062
nocdplz is offline nocdplz
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eccentric ideas

Strange program this Algodoo, it looks so childish and friendly that is frustrating to realize of not having the skills of a 4-12 child. However it is enough to see a single demo to understand that behind there is a huge computing power, that takes into account lots of parameters: frictions, elasticity, fluidity, inertia, accelerations and so on.
So i've tried with effort to dimension my parts through lots of menu, and to skip the 2D limitations. Seems ok to see more or less what happens, less to get useful data. Imho.
After complaints here the first results (attachments):

Swinging CW #3046 3049
- the idea surprisingly seems to work. It does not at 0 gravity because the frictions (even that of the air) slowly move everything, but it is enough to use a hundredth of the gravity (in practice a seismic pendulum with inclination <1) to get the system remaining consistent over time.
Working also in our real wold? It would be useful, with those bulky carriages seen around...

Silicone damped wheels #3040- fairly useless simulation because the viscosity of the liquid is not settable (only indirectly, by changing the gravity input, but it's not the same). However it shows that the motion is more or less what imagined, and the effect really acting. But calibrating in practice the weight and viscosity of the silicone to get the right synchrony seems highly difficult to achieve

have fun - carlo
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File Type: jpg antiecc SIM.jpg (331.8 KB, 24 views)
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File Type: zip anti eccentric AA.zip (600.7 KB, 2 views)
File Type: zip jel wheels.zip (309.1 KB, 1 views)
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