# The Naked Scientists Forum

### Author Topic: A new perspective on Overbalanced Wheel  (Read 2158 times)

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #25 on: 16/10/2016 07:20:09 »
When lifting up a heavy load, can utilize methods like compound pulley or gearing box etc to lessen the workload of the lever (or wheel).

Utilizing the compound pulley (or other similar techniques),

(a) the wheel uses less output to lift up the heavy load
- without pulley and the load is too heavy, the wheel will not be able to lift it up
- using the pulley, it will be able to

(b) the wheel will take longer to lift up the load
- without the pulley, the wheel might take minutes to lift a load up to a certain altitude
- using the pulley, it might take hours to reach the altitude

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #26 on: 16/10/2016 16:46:33 »
How to increase the overall output efficiency of the overbalanced wheel?

Learn from the solar & wind energy,

(a) build bigger
- one good feature of overbalanced wheel is its potential to be able to construct bigger.

(b) build more, build a lot more
- and since the structure of the wheel isn't complicated (just weights & wheels etc), can collaborate with Waste Management, using recycled waste products as the raw materials for the wheel construction, thus contributing to waste reduction.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #27 on: 17/10/2016 06:58:31 »
When the wheel is rotating, there will come other factors that may serve some unique functions.

Due to the inertia of heavy ball, these balls tend not to roll down instantly under normal condition;
but during the rotation of the wheel,

(a) some balls will experience a push which will speed up their rolling down action

(b) some balls will further delay their rolling down, and this phenomenon can uniquely function as a speed regulation to control the rotation of the wheel

(c) some balls might even result not acting on the wheel, or the wheel will experience near zero torque from some of the balls

But all the features occur during the rotation can only be considered a bonus, as when the wheel is doing work, the rotation will slow down, so most of the rotating features will end up having little use.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #28 on: 18/10/2016 06:29:59 »
A pendulum, when drop from its displaced position, will swing and past through its equilibrium position, then swing back.

Comparing with the overbalanced wheel, rather than having the acceleration swinging back-and-forth of the pendulum, the rotation of the wheel is of constant RPM, so how will the ball within the wheel react?

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #29 on: 19/10/2016 01:45:17 »
Due to the inertia of the ball, especially the heavy one, it will take some time before the ball can change its state of rest to motion (a.k.a rolling down). So before the ball start to roll down, the rotation of the wheel will have push (or drag, but carry would be a more appropriate word) the ball further forward, away from the center.

Depending on the rotation speed of the wheel,
the faster the rotation, the further the ball got drag forward;
the slower the rotation, the ball only got carry slightly forward.

And since the vector of the ball is pointing away from the center line (equilibrium position) when the ball is push forward by the wheel's rotation, it will contribute very little to the total torque force on the ascending side of the wheel.

But then again the balls near the equilibrium would already have very little torque force (zero torque force at equilibrium position), so it hardly make any huge different.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #30 on: 20/10/2016 01:47:54 »
When the ball rolls down along the circular rim of the wheel, it does have the effect of dragging the wheel along, thus the wheel will rotate along the same direction as the roll down ball.

But when comparing with the ball that pushes the wheel down, the force exert by the push is much greater than the drag, thus the wheel will rotate along with the push.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #31 on: 21/10/2016 00:31:33 »
A side info

When the ball rolls down, it drags the wheel along with it;

(a) for a lightweight wheel, having lower inertia, easier to rotate

(b) for a heavyweight wheel (like a flywheel), having higher inertia, much harder to rotate

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #32 on: 21/10/2016 09:01:07 »
A side info

I push a light ball (lower inertia), I can easily move it.
But when I push a heavy ball (higher inertia), not so easy.

When a ball is resting on the wheel, either I push the wheel or a small weight is placed on the wheel;

(a) for a light ball (lower inertia), the wheel can rotate easily,

(b) but for a heavy ball (higher inertia), harder for the wheel to rotate.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #33 on: 22/10/2016 02:32:50 »
If I continuously supply a force to a balanced wheel, it should keep rotating faster & faster, increasing its RPM. Thus the theory that for an overbalanced wheel, its RPM would keep increasing non-stop.... until it destroys the world (funny believe)...

What if there is an mechanism within the wheel that can regulate the RPM, preventing the wheel's rotation from increasing ?

Refer to image.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #34 on: 23/10/2016 03:04:33 »
As the ball may take some time before it can start to roll down, so

- the faster the wheel rotates (higher RPM),
- the higher the ball rises (before it start to roll down),
- the more the torque force increases (as the ball is still further from the axis),
- the heavier the ascending side of the wheel becomes (or lighter on the descending side),
- which causes the wheel to slow down, thus regulating the speed

* regardless of whether a heavy ball or a light ball, both roll down at the same time.... like dropping two different mass of objects and both will reach the ground at the same time.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #35 on: 24/10/2016 12:34:44 »
With the speed regulating function, the wheel rotates in a constant RPM. And when doing work, like lifting up a load etc, the wheel can still rotate in constant RPM, but with much slower speed.

Doing work is basically adding more torque force on the ascending side, thus slowing down the wheel. But make sure after that addition of force, the total torque force on the descending side must still be larger than the ascending.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #36 on: 26/10/2016 11:21:28 »
A side knowledge

Like dropping objects of different sizes & weighs, and those objects will land at the same time;
the same can be found with balls of different sizes & weighs, roll down & reach the ground at the same time, regardless of their sizes & weighs (but it doesn't apply to all situations)

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #37 on: 27/10/2016 03:52:48 »
A side knowledge

Comparing the circles (with different size & weigh) rolling down at a gradual & steep slopes, and circles falling down vertically.

Most will know objects drop down will reach the ground at the same time, but the circles rolling down the slope can also behave the same, even though the rolling circles have surface contact while another are free-falling.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #38 on: 28/10/2016 01:14:10 »
Different sizes and weighs of the circles, when rolling down a slope, may reach the ground at the same time; but that doesn't apply for all type of situations.

Comparing between center-heavy, solid & hollow circles
- center-heavy circle rolls down faster
- hollow circle rolls the slowest
- solid circle in-between

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #39 on: 29/10/2016 03:39:46 »
Utilizing how the hollow, solid & center-heavy weights behave when rolling down, implement it to the swinging weights.

- with hollow swinging weight, the rolling ball takes longer to lift the weight up.
- with center-heavy swinging weight, the ball has a faster reaction to lift up the weight.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #40 on: 30/10/2016 02:18:11 »
More experiment/test on utilizing the hollow, solid & center-heavy, implement it to the swinging weights & rolling balls.

- hollow rolling ball takes longer to lift the weight up, or roll down.
- with center-heavy ball, has a faster reaction to lift up the weight.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #41 on: 31/10/2016 02:49:56 »
Although the rolling ball (or swinging weights) can be configured (hollow, solid, center heavy etc) to gain faster/slower rolling down rate, but theoretically speaking, timing is not really an issue for the overbalanced wheel.

When the wheel is unbalanced (one side heavier than the other), the wheel can take either a minute to balance itself, or an hour to accomplish the same task; it doesn't really matter unless for some efficiency purpose etc.

When the ball rolls down, it can also either take a minute to roll down & lift up the swinging weight, or take an hour to do so. It doesn't matter how long it took to roll down; what matters is it can achieve rolling down & lifting the swinging weight up.

When doing the wheel design, the concept can either be

1. fast rotation/spinning but unstable
- too fast a spin, the wheel will be experiencing the centrifugal effect;
- weights within the wheel will go haywire, very difficult to get the timing right to achieve some particular task;
- small-diameter sized wheel & huge-diameter wheel tend to behave differently, due to the inertia properties, so maybe the design may fit smaller wheel, but not for big size (or vice versa)

2. slow rotation and stable
- weights & wheel can take its own sweet time to accomplish its task

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #42 on: 01/11/2016 03:48:17 »
For overbalanced wheel, it should be the weights (ball & swinging weight etc) that determine the rotation of the wheel, not the other way round.

For slow rotation of 5RPM & slightly faster rotation of 15RPM, the balls still can roll down the slope. The rolling down action of the ball can cause a shift of torque increase/decrease on the left & right side of wheel.

But for fast rotation of 30RPM, it take around 2 seconds per 1 revolution of the wheel to push the balls to the edges; all the balls within the wheel would not have the time to roll down. At this situation, it is the wheel controlling the weights.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #43 on: 01/11/2016 23:57:40 »
Checking on the balance between hollow, solid, & center-heavy balls on the see-saw. All the balls weigh the same, with same distance apart.

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #44 on: 03/11/2016 03:25:37 »
Comparing the difference between a wheel with only balls, and a wheel with balls & swinging weights

- change in the symmetry of the balls

- position of ball being risen up (and vice versa)

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #45 on: 04/11/2016 02:31:51 »
Comparing the difference between a wheel with only solid swinging weights, and a wheel with different type of (hollow, center-heavy, center-light etc) swinging weights. The weight ratio of swinging weight to ball is 1 : 1

- change in the symmetry of the balls is the same

- position of ball being risen up is the same (and vice versa)

basically no difference

#### wheelMetal

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##### Re: A new perspective on Overbalanced Wheel
« Reply #46 on: 05/11/2016 02:15:49 »
Comparing the difference between a wheel with only solid rolling balls, and a wheel with different type of (hollow, center-heavy, center-light etc) rolling balls. All the swinging weights are the solid type. The weight ratio of swinging weight to ball is 1 : 1

- change in the symmetry of the balls is the same

- position of ball being risen up is the same (and vice versa)

basically no difference

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##### Re: A new perspective on Overbalanced Wheel
« Reply #46 on: 05/11/2016 02:15:49 »