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Overunity Machines Forum



Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant

Started by AquariuZ, April 03, 2009, 01:17:07 PM

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AquariuZ

Quote from: 0c on April 17, 2009, 08:01:05 PM
Nobody seems to think the idea I posted earlier is worth modeling. So I took the time to do a crude GIF animation to illustrate what I was trying to say. There are several ways to improve on the design. It is not self-starting, but needs to be spun up fast enough that balls will exit with enough momentum to get back up to the top.

There are several ways this design can be optimized. Adding some padding where the ball hits the hub will allow more kinetic energy transfer from the impact. The number of spokes might need to be changed to allow the ball more (or less) time to hit. The tube or chute curvature and length can be modified to shorten the path back to the top, could even be shortened more so the balls impact the spokes horizontally instead of vertically.

It's just a start. It should be modeled with a reliable simulation software to see just how feasible it really is.

Bessler Wheel Concept animation
http://www.overunity.com/index.php?action=tpmod;dl=get267

Hi 0c,

Sorry I must have missed your design.

It looks original, but I have my doubts as to how the balls leaving the wheel will get back to the top again because the acceleration required is not enough to overcome the gravitational pull to bring the ball back to the start position. I´ll try and model it if you can be a little more specific on the return path.

To add: you can naturally spin the wheel up to get enough momentum to bring a single ball back to the top, but it will slow down if you do not pulse it with an external force and will slow down eventually because the balls can no longer reach the top for the lack of momentum, and I do not see this wheel permanently accelerating (yet)

0c

Quote from: AquariuZ on April 17, 2009, 08:40:05 PM
I have my doubts as to how the balls leaving the wheel will get back to the top again because the acceleration required is not enough to overcome the gravitational pull to bring the ball back to the start position. I´ll try and model it if you can be a little more specific on the return path.

To add: you can naturally spin the wheel up to get enough momentum to bring a single ball back to the top, but it will slow down if you do not pulse it with an external force and will slow down eventually because the balls can no longer reach the top for the lack of momentum, and I do not see this wheel permanently accelerating (yet)

The return path can be much shorter and more efficient than I showed in my animation. I drew it that way so it would be easier to see that the return chute is completely independent of the wheel. In my mind, the chute should curve up sharply and should return the ball to the wheel just above the hub, at a 45 degree angle to a spoke that is just past vertical. This would allow the ball to retain some of its vertical momentum and transfer it directly to the wheel.

But to get started, you could just model what I showed. The wheel will need to be spun up to a speed where the balls will exit with enough momentum to carry them back to the top before the balls start dropping. The wheel should weigh more than the sum of the balls. A shorter return path will have less losses.

AquariuZ

Quote from: 0c on April 17, 2009, 09:28:57 PM
The return path can be much shorter and more efficient than I showed in my animation. I drew it that way so it would be easier to see that the return chute is completely independent of the wheel. In my mind, the chute should curve up sharply and should return the ball to the wheel just above the hub, at a 45 degree angle to a spoke that is just past vertical. This would allow the ball to retain some of its vertical momentum and transfer it directly to the wheel.

But to get started, you could just model what I showed. The wheel will need to be spun up to a speed where the balls will exit with enough momentum to carry them back to the top before the balls start dropping. The wheel should weigh more than the sum of the balls. A shorter return path will have less losses.

Ok a quick one done. Crude wm2d model attached.

It fails (sorry) because the wheel needs to spin in such a rate to bring the ball back up that on the downpath the ball does not impose a downward force on the wheel (moves faster than gravitational acceleration of the falling balls)

Hence it will slow down to a point where the wheel is no longer able to bring the balls back up.

In other words, the balls cannot keep the wheel spinning at such a rate as is required to bring even one back up.

0c

Quote from: AquariuZ on April 17, 2009, 09:34:53 PM
Ok a quick one done. Crude wm2d model attached.

It fails (sorry) because the wheel needs to spin in such a rate to bring the ball back up that on the downpath the ball does not impose a downward force on the wheel (moves faster than gravitational acceleration of the falling balls)

Hence it will slow down to a point where the wheel is no longer able to bring the balls back up.

In other words, the balls cannot keep the wheel spinning at such a rate as is required to bring even one back up.

If a tight curve is used for the chute and it only returns to just above the hub of the wheel, is there enough energy left in the ball for it to catch up with the rotation of the inner part of the wheel?

PS: I don't have WM2D, so if anything looks promising please post an image or video.

hansvonlieven

Quote from: AquariuZ on April 17, 2009, 09:34:53 PM
Ok a quick one done. Crude wm2d model attached.

It fails (sorry) because the wheel needs to spin in such a rate to bring the ball back up that on the downpath the ball does not impose a downward force on the wheel (moves faster than gravitational acceleration of the falling balls)

Hence it will slow down to a point where the wheel is no longer able to bring the balls back up.

In other words, the balls cannot keep the wheel spinning at such a rate as is required to bring even one back up.

I guess that answers my earlier question.  >:(

Hans von Lieven

BTW. How come we are still hoping when we really know better.

Go figure   ??? ???

When all is said and done, more is said than done.     Groucho Marx