Author Topic: Easy Gravity wheel (Read 59100 times)

guruji · « **Reply #30 on:** February 19, 2011, 01:22:54 PM »

Quote from: Bizzy on February 19, 2011, 12:51:11 PM

Good Morning
How many do you think it would take to compenstae for teh others and keep it pout of equilibrium?
Thanks
Bizzy

Hi Bizzy this guy did eight around for the bessler wheel as shown so eight would work maybe even less.

http://www.youtube.com/watch?v=HqR60Z8jIm8

These simulations would help too:
http://www.youtube.com/watch?v=Bq0P6XDKrnY&feature=related

Bizzy · « **Reply #31 on:** February 19, 2011, 02:53:38 PM »

Quote from: guruji on February 19, 2011, 01:22:54 PM

Hi Bizzy this guy did eight around for the bessler wheel as shown so eight would work maybe even less.

http://www.youtube.com/watch?v=HqR60Z8jIm8

These simulations would help too:
http://www.youtube.com/watch?v=Bq0P6XDKrnY&feature=related

Those were fasinating. Originally I thought about using just one large metal ball but never considered serveral smaller ones.
Thanks
Bizzy

guruji · « **Reply #32 on:** February 19, 2011, 11:42:11 PM »

Another idea on same principle wheel what do you think guys?

spiralout · « **Reply #33 on:** February 21, 2011, 11:10:13 PM »

@Guruji,

That last one I couldn't figure out... but the first design you posted got me wondering... probably won't be a self runner, but I'll have to find some time and play with it, just to see how it behaves, so to speak.

Made a sketch of what I was thinking about... Man, it looks so close...

Thanks for sharing

http://img442.imageshack.us/img442/8540/33389627.jpg

AB Hammer · « **Reply #34 on:** February 22, 2011, 01:14:30 AM »

spiralout

No matter how you shape your arms. It only counts at it point of hang.

Alan

JEJEHO · « **Reply #35 on:** February 22, 2011, 06:03:23 AM »

Quote from: spiralout on February 21, 2011, 11:10:13 PM

@Guruji,

That last one I couldn't figure out... but the first design you posted got me wondering... probably won't be a self runner, but I'll have to find some time and play with it, just to see how it behaves, so to speak.

Made a sketch of what I was thinking about... Man, it looks so close...

Thanks for sharing

http://img442.imageshack.us/img442/8540/33389627.jpg

In Picture 33389627.jpg the hanging weights cant' hang like the picture. Becasue in the L shape hanging weight , the large weight's moment is zero (becasue of the distance from the centre of axis is zero). the small weight has a moment. so it wont hang like shown in the picture. It can hang like ^ this

supersam · « **Reply #36 on:** February 22, 2011, 06:39:58 AM »

@bizzy

have you thought of incorporating your idea with the Milosevic principle of dual oscillation? maybe with a little spring help, you could get it to throw some weight around!

keep thinking man
sam

@

Bizzy · « **Reply #37 on:** February 22, 2011, 12:18:26 PM »

Quote from: supersam on February 22, 2011, 06:39:58 AM

Good morning
I am unfamiliar with that principle can you elaborate?
Thanks
Bizzy

@bizzy

have you thought of incorporating your idea with the Milosevic principle of dual oscillation? maybe with a little spring help, you could get it to throw some weight around!

keep thinking man
sam

@

mdmiller · « **Reply #38 on:** February 22, 2011, 04:58:25 PM »

here is a thought.
you need to have a component in your wheel that picks up the weight creating an eccentric load, or else it is not off-balance. the blue lines I added represent a shelf/platform to take-on/engage the weight during a phase of the rotation. the radius of this blue line will have to be slightly less than the length of the arm. there will certainly be a horizontal vector from the load back to the pin when the weight engages the blue platform, but it should be small. some derivative of this idea might create the off-balance condition you seek.

Omnibus · « **Reply #39 on:** February 22, 2011, 06:13:13 PM »

Quote

you need to have a component in your wheel that picks up the weight creating an eccentric load, or else it is not off-balance.

Agreed. For these types of wheels to work negative feedback (ensured by some kind of a ramp) is a must. Finding a way to ensure that with the least friction the biggest drag in this whole research.

Bizzy · « **Reply #40 on:** February 22, 2011, 06:20:24 PM »

Quote from: mdmiller on February 22, 2011, 04:58:25 PM

here is a thought.
you need to have a component in your wheel that picks up the weight creating an eccentric load, or else it is not off-balance. the blue lines I added represent a shelf/platform to take-on/engage the weight during a phase of the rotation. the radius of this blue line will have to be slightly less than the length of the arm. there will certainly be a horizontal vector from the load back to the pin when the weight engages the blue platform, but it should be small. some derivative of this idea might create the off-balance condition you seek.

HI md
This looks similar to guruji's original idea, which means it would also have the same issues. It looks like that at some point the system would reach equilibrium. Do you have a way to prevent that?
Thanks
Bizzy

guruji · « **Reply #41 on:** February 22, 2011, 08:43:41 PM »

The first wheel I think whatsup was right although mdmiller is creating me a bit of doubt now again if this works or not. The second one I think it works for sure. The second one is on same principle but weights this time are hanged with a moving belt to every small wheel around to the fixed centre of the big wheel. When big whell turns all wheels around turn to same position so that weight remain on one side. There's not much to understand this. If toothed belts or sprockets of bicycles are used would be much better to cancel friction.
Thanks

mdmiller · « **Reply #42 on:** February 22, 2011, 09:40:42 PM »

I went through various wheel builds several years ago and had the issues/problems understood to a point. Now I'm fuzzy. Someone please tell me if the attached image is balanced or unbalanced. The red dot is loosely pinned. The green dot is fixed. I'm thinking I went through this type of build in the past, and it assumed equilibrium in this position, but today it seems unbalanced. Please set me straight. Thanks !

guruji · « **Reply #43 on:** February 22, 2011, 10:15:57 PM »

Hi mdmiller that image seems balanced. What is on the left is on the right.
The one you've posted about the L's seems to work if the horrizontal rods are long and skips the wheel centre as you did. One has to build this too to see regarding the L Gravity wheel.
Thanks

spiralout · « **Reply #44 on:** February 22, 2011, 11:05:02 PM »

@ All, thanks for the eye openers.

@mdmiller, could the missing component be a couple of simple stoppers? I'm not
completely sure about their current placement, but the idea should be clear.

http://img573.imageshack.us/img573/4971/gw1k.jpg

btw, how do I embed the picture into the post? just by attaching?

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Author Topic: Easy Gravity wheel (Read 59100 times)

guruji

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Bizzy

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