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Author Topic: Gravity wheel of Mikhail Dmitriyev  (Read 288427 times)

hartiberlin

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Gravity wheel of Mikhail Dmitriyev
« on: December 08, 2009, 07:45:22 PM »
Hi All,
please have a look at this wheel:

http://www.youtube.com/user/MikhailDmitriyev

Here is his description to it:

http://www.sciteclibrary.ru/rus/catalog/pages/9367.html

Scroll to the end of the page, where the drawings are.

These drawings are different than his machine with the
electric motors, that pull up weights just at the right moments,
but I find these description pictures much more important.

You have to take into consideration,
that in this pictures:
http://www.sciteclibrary.ru/ris-iz/2543/7.jpg
the balls at 1 to 2 o´clock on the ramp don´t pull down
the wheel.
This has to be changed somehow, so the balls will
glide in a bar somehow, so that the weight of the balls in this position
will still pull on the wheel.

Then it might just work without electric motors inside the machine.
Regards, Stefan.

Cloxxki

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #1 on: December 08, 2009, 11:03:40 PM »
Fascination, great find!

I see 2 main versions, one where the weight on the left side hang right under their pivot on the rim, and one where they take a shorter radius than the rim.
Seems he used one-way cluches per pivot to allow for movement where required, and restriction elsewhere?
I've posted similar ideas, but won't argue mine where better. Are we actually seeing a working wheel here?

I like how on the left bottom, as in so many designs, the weight are prety much off the wheel, supported by an outside structure. Another ramp in the right top takes them outside. Is energy lost there? Not sure, as the weights do still load the wheel some, even if they most mostly outward, and are supported by another outside structure. If the ramp could give way some and drive the wheel, would that help?
On further thought, the right top ramp might well be using the lateral momentum generated at 12:00, and by offering the weight freedom to move out, just conserve that lateral inertia vector, while gravity kicks in just the same. A weight wants to parabole of course, and the wheel want to circle.

Amazingly simple designs. If it works, we've been stupid for 300 years. As always, it will be interesting to learn why it does NOT work :-)

hartiberlin

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #2 on: December 09, 2009, 12:36:11 AM »
Well,
does anyone know, how to simulate these
one way clutches  pin wheels bearings in
WM2D simulator software ?

If I would know this, I could try to simulate this:

http://www.sciteclibrary.ru/ris-iz/2543/7.jpg

Many thanks.

Regards, Stefan.
« Last Edit: December 09, 2009, 12:17:43 PM by hartiberlin »

Cloxxki

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #3 on: December 09, 2009, 08:58:49 AM »
I wish I could. But could you not "simply" design one such clutch yourself, and downscale it? Does WM2D have sufficient resolution for that?

Obelix

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #4 on: December 09, 2009, 10:44:27 AM »
@Cloxxki

Yes you can, have a look at :
http://www.koyousa.com/brochures/pdfs/cat113ex%20-%20Miniature%20One-way%20Clutch.pdf

And under WM2d take the figure ....

Obelix

rlortie

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #5 on: December 09, 2009, 10:03:40 PM »
It is my opinion that you are not seeing a working wheel. No matter how much subterfuge you build into the so-called mechanical transference it is still a 'changing height for width' design. Adding an external ramp on the ascent only confirms my opinion.

This design in  principle is no different than the Darrel Van Dussen (not sure about the spelling) that was posted on this forum some years ago.

For those who wish to do a 'hands on' build, you can find the one-way bearings here; http://www.mcmaster.com/#one-way-locking-bearings/=4uzu0s

Ralph Lortie

http://arracheenterprise.web.officelive.com/default.aspx

AB Hammer

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #6 on: December 09, 2009, 10:49:19 PM »
LOL Ralph

 I would say it is a cross with Darrel Van Dussen, mine and some others scratch pad from a couple of years ago. I don't see a runner either.

rlortie

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #7 on: December 09, 2009, 11:54:09 PM »
Recently and on another thread I was chastised by the moderator for preaching patent over free sourcing. My response was ignored, so now it is my turn to express my feelings.

I sometimes wonder if he does not dig these worthless designs up, starting new threads knowing full well that they will not work. Its all in the name of creating hits on the forum for the advertising revenue it brings.

When traffic gets slow; wham! we are hit with another so called great new design posted by the moderator. You go figure!

Ralph Lortie

Ken the Great

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #8 on: January 05, 2010, 10:10:42 PM »
LOL@Ralph

sushimoto

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #9 on: January 09, 2010, 04:56:42 PM »
So,
besides all the LOL's here, i am wondering why this setup is
withstanding a WM-simulation?
http://www.youtube.com/watch?v=ODf49HtCNj0

... just an humble reply to some upcoming arrogance here. ;)

Cheers

Cherryman

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #10 on: January 09, 2010, 07:23:32 PM »
Quick and dirty test:


dmfed

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #11 on: March 11, 2010, 02:20:26 PM »
Quick and dirty test:
Hi all
Take a look here:
http://www.youtube.com/watch?v=bpnmEUP23t8

The device is the same, and the result is quite different.
WM  file here:
http://mikhaildmitriev.com/piramid/T12.wm2d

regards

Omnibus

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #12 on: March 11, 2010, 06:07:57 PM »
Now, here's the corrected "quick and dirty" T1.wm2d with motor removed. We see, as expected, no effect.

Omnibus

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #13 on: March 11, 2010, 06:14:27 PM »
Same thing with T12.wm2d -- remove the motors and it won't work.

dmfed

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Re: Gravity wheel of Mikhail Dmitriyev
« Reply #14 on: March 12, 2010, 09:45:56 AM »
Same thing with T12.wm2d -- remove the motors and it won't work.
-The motors are used to create a permanently  unbalanced state of the system.

-Permanently  unbalanced system can rotate with infinite speed (theoretically this limit is speed of light). This speed is limited only by the speed of the motor  in practice (as you see in T12...).
 
-Power  required  to create an unbalanced state of the system is much less than the power required for its direct motion (rotation).

-There are many ways to create a permanently  unbalanced  state of  the  system.
Motor can simulate freewheel  (one way rotation).

-The combinations of gravitational and magnetic interactions are very promising as well.