The 'chaotical', a suggestion for the gravitic wheel?

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Some here will think this is a joke, but this design is very serious.
In addition it could satisfy those with the belief that a wheel can work with the only effect of the simple gravity.

This is the 'chaotical', a gravitic wheel based on the chaos.
The principle is very simple: a whole side of the wheel is forbidden for the main COG, therefore the torque is always on the other side.
The wheel a no other chance than rotate

The drawing shows the wheel at the starting position (said in that one, but any other position is possible).
The wheel includes four big hollow drums (in yellow light) which are rotating on their axis, located in two parallel planes (background and foreground on the drawing)
Each of these four hollow drums includes a middle sized hollow drum (in yellow), rolling on the inner rim of each previous drums.
One time again with a new similar level, where the orange hollow drums are able to roll inside the yellow drums.
And the four last cylindrical weights (in light green) are able to roll inside each of the orange drum.

Now the tricky thing is a mechanism which forbidden all the yellow/orange drums to overpass the vertical plane passing through the center of the wheel.
This is made on the drawing by the small red cylinders which are supposed very light and permanently in contact with the drums, allowing these drums to move only on the right side of the vertical blue line.

The motion of this multipart device is very complex and typically chaotical.
The worst position is when - by chance - all drums arrive at the same microsecond simultaneously on the four blue line, in this case a typical metastable situation, which normally should disappear by itself. in view to avoid this situation the small green cylinders are in charge to create a chaotical unbalance.

This seems to me an interesting idea and I'm in way to build a demonstrator for confirmation. Any comments?

edited: one correction
'passing through the center of the wheel.' has to be exchanged by:
'passing through the center of each yellow light drum (the blue line)'.

[wheelrite]

wow

[DrWhat]

I like your way of keeping the COG to one side. Maybe a drum needs to be tapped (hit) repetitively to do this. Or the small red cylinders could do this. The secret could be how to amplify the initial motion (resonance?) rather than watch the inevitable slow down.

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Dear weelrite and DrWhat,
Many thanks for the comments.
As explained in a previous post,
(here: http://www.besslerwheel.com/forum/viewt ... 2131#82131)
the small locking rollers (in red) can be held in close contact by a spring, like here:
http://www.besslerwheel.com/forum/viewt ... 1403#71403
In this design we got a double ratchet, the locking roller being assisted by the locking rod, giving a double effect (anticipation of the lock)

The question of the tapping is also interesting.
The MT55 design (see the drawing from Ed: http://www.besslerwheel.com/forum/files/mt55.png)
could be well revisited this time at the light of this above principle (the purpose of Bessler being to keep the COG on the same side, and not to lift-up the weight)

This principle ('one side forbidden') can be implemented in several ways.
As you point out, the most important is a quick reaction of the locking mechanism.
These mechanisms must be active as far as possible from the blue line
We are playing on the fact that statistically one of all the drums will always be eccentered.
I'm not sure but my experiments will show if the green small weights are needed. I presume even no.

Another important question is the value of the weights for each drum.
Shall they be with the same weight?
Shall we use a particular ratio?
or shall we use the Fibonacci number serie? etc.
Any idea?

[jonnynet]

The only thing I can say to this one is that I am sure, the red light-weight cylinders will pushed upwards: In the case when the yellow and orange colored drums are NOT centered, which is wanted here.

[path_finder]

dear jonnynet,
Thanks for the comment.
Not if the diameter is small enough
(in the above drawing the dimension is exagerated for a better understanding).
Remember, you can stop easily a car with just a small stone.
In addition this will never be if these locking cylinders are supplied with an extra plate like used within the wedges for wagon immobilization, like here;
www.patry.fr/pdf/access%2045.pdf

[jonnynet]

Ah, ok! Thanks for your clarification. After it, for a moment, I thought that's it. But then I saw the next problem :-/ Each drum rotates CW along with the wheel or separately if it's pivoted. So it doesn't matter what's inside the drum, the drum will balance itself. Unless there is something that pushes the red cylinders CCW.

[nneba]

Hi,

This is a neat concept, but far too complex.

P_F you are too smart for your own good

[path_finder]

Dear jonnynet,
The reality is much more simpler.
When a drum rolls to the right side, the space on the left side increases, and the red cylinder falls inside the created hole (experimented by myself).
So far any complex additional feature is not required at all.

[path_finder]

This is a neat concept, but far too complex

I don't think so. Using some very primitive parts ('Perigord duck legs with its grease' recycled tin cans) I was able to confirm the pertinence of the concept. I will try to make the same experiments with some bigger parts (barrel).
Note on the shot what I discovered: the locking rollers must be very thin (in this experiment they were some segments of electric wires).

[rlortie]

the locking rollers must be very thin (in this experiment they were some segments of electric wires).

not only thin but almost mass-less; they present a counter weight negating the desired rotational direction.

I believe you would get the same effect with less counter mass if you put the locking roller between the free wheel and drum #2

Ralph

[path_finder]

Dear riortie,
The countermass of the locking roller is very marginal (depending of the density of the used material and of its diameter) even almost null:
the contact between the roller and the drum is almost intermittent and during 90% of the time this roller is falling (no weight at all).
As explained above the motion of a drum creates a permanent space where the roller falls, with the only exception when the drum stops for any reason.
At this moment there is an impulse ejecting the drum again in the main rotation direction.

[DrWhat]

path, is that a can which was full of herbed frogs legs?

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Perigord duck legs with its grease

ask nicbordeaux for more details. see here:
http://www.foie-gras-sarlat.com/conserv ... anguage=en

[path_finder]

In this thread above I suggested a design based on the oriented chaos
http://www.besslerwheel.com/forum/viewt ... 2285#82285
After some complementary practical experiments, I must make an important change inside the original text:

The words: 'The wheel includes four big hollow drums (in yellow light) which are rotating on their axis'
must be changed for:
The wheel includes four big hollow drums (in yellow light) which are fixed to the main wheel
Significant change!...(instead before I was loosing most of the torque)

Even rare event, but sometime it can happen all weights and drums being at their almost left position (in that case the resultant COG being stopped at the vertical position of the main wheel axis, and the residual torque perhaps not sufficient anymore for a restart, remember the misfit observed once by Bessler). In view to avoid that there is a simple way: to preload all weights/drums with a light spiral spring.
In addition my experiments demonstrated to me the need for an important flywheel, another way to prohibit such as situation, keeping all pendulum motions chaotical