The secret behind Bessler's wheel...

[Fcdriver]

Like I said is this suppose to propel a balanced wheel or a unbalanced wheel run to smoothly? Guess it isn't as smooth that I figured. Leaning top dead center, on one center of mass, to propel another mass comes close. But how do create a net gain?

[sleepy]

As always Raj,great idea and wonderful of you to share so openly. The problem I see right off the bat is in picture number 2,the weight being lifted is applying at least twice as much counter torque. I feel very strongly that at that point,the wheel will stop,rotate slightly CCW and settle.

[ME]

What outside force have you used in your simulation?

I am continuing to understand your simulation of my concept wheel.

1. I have converted your gif image back to video.
From this video, I find your simulation wheel does only one revolution, of 0.04 sec duration.
This would give us the average speed of rotation at 25 rpm, which is close to what Bessler's wheel did.
It is nice to note that the resetting of the pendulums/bobs/weights is done back to the starting point, easily, in one revolution.

The animation of the simulation is just to show how a full cycle of the movement looks like in the smallest file size (and so to keep the file as attachment for this website).
Usually 10 frames per seconds and (normally around 24, but in this case) 42 frames in total to keep things smooth enough.

I initially showed those still frames because it gets interesting at the exact points where things speed up, and hard to see what happens in the animation (or movie).

Those red weights operate at 0.4 meter radius from the big circles and are 1 kg each, the rest is set to a very low value. Friction is not modeled.
Just the battle of two pendulums.

A minimum speed (of the lower wheel) is enforced to be 5 degrees per seconds so it keeps rotating, just as like the added pendulum (green) on the left (which was added to depict that similarity).
On a maximum speed of 970.4°/s that's about 0.5%.
I think an equivalent force-value would be meaningless: it's save to say that for this to work you need an energy-equivalent of raising those two pendulums from a balanced (226.5°) to the unstable position (46.5°), plus some added kinetic energy (5°/s) to make it go full cycle (plus friction which I didn't model). Just like a single pendulum forced to go over its top.

In the simulation things cycles around in 2.2196 seconds (27 RPM).
That number is also meaningless as long as we potentially could keep things close to unstable equilibrium:= keeping things barely balanced in its unstable position (Max. PE) for a relative variable amount of time where it basically can't 'decide' to go left or right, until it does. This duration basically depends on that 5 degrees per second (added kinetic energy). The fact that it needs such addition at all is more important (I think) than the exact force. A Perpetual Mobile should be able to generate it by itself and should go faster per cycle.

For an arbitrarily set small amplitude the added pendulum swings a period of (an expected) 1.113 seconds, your mechanism goes 0.937 seconds while back up to 1 second when very close to its equilibrium -! it isn't as smooth as the pendulum (or a flywheel).

Zero acceleration doesn't happen at zero torque, because zero torque last only a flickering of the eye-lid, too short an interval, to show change in acceleration, as the wheel continues to turn from acquired momentum and one pendulums instantly and swiftly swing downwards helping wheel rotation.

Yes... (and no, and maybe)
Hence those still-frames. But also: 1. my animation skips a few simulated frames; 2. I can adjust my simulation into slow-motion; 3. I can do interpolations;

I just didn't catch my own warning about the difference between your mechanism and a simple pendulum. Classic :-)
And actually it's (perhaps strangely) the kinds of 'mistake' I'm personally looking for.
I didn't take the effects of velocity and change in pendulum-acceleration into account when handling torque...

This is what happened:
I measured acceleration by observing the freewheeling of the mechanism.
I measured "Torque" on the wheel by slow incremental steps in rotation and measure its resistance, or the effect of gravity.
This last one ignored that both alternating pendulum momenta (velocities) affects the Torque.
Now I have done several of those torque measurements at different constant speeds. It should be possible to map this onto angular acceleration, unless something else is overlooked. :-)
The shape of this torque measurement almost morphs (by def. never can) into a shape of angular acceleration with increased initial push/velocity.
I don't know if this makes any sense, but at least I think this is a cool new skill/tool to have.

TL;DR; Exiting stuff :-)

[raj]

Thank you again Marchello, for your precious help and explicit explanation on your eye-opening simulation.

I am still not quite clear how good is my auto gravity pendulums powered wheel concept.

So far, I see very positive sign and I am continuing to work on this concept nonstop.

Raj

[raj]

My wheel concept testing continues.

Unfortunately I do not have proper materials to improve my testing.
The wheel I am using for my testing is NOT a flywheel.

With a proper perfect flywheel, materials and engineered construction, I feel confident, my wheel will be a runner.

So I am pressing on.

Raj

[raj]

My Auto Gravity Pendulums Machine concept COULD work, even without a flywheel...

Raj

[jonnynet]

Would like to make a simulation of this - what do I have to do?

[raj]

Jonnynet, it will be a great help if you could do a simulation.

I shall try to make some explanatory drawings to help you in your trial simulation.

Is that ok?

Raj

[jonnynet]

Sure, I need to know the mode of operation, then I see a good chance for a test. For my own designs, most of the time I don't get beyond a computer simulation. Without any positive signs there, I never start to build something real.

[rlortie]

You might want to hold off investing in a 3D printer after reading this!

http://newatlas.com/desktop-metal-3d-pr ... c-90303542

[Ed]

Ralph, thanks for the article, but I hardly think $120K is going to unseat a $350-$800 home 3D printer anytime soon. Besides, you can already print with filaments infused with various materials, including metal. Though not as dense as the method you’ve just posted, it still can print in something more than just plastic.

https://www.matterhackers.com/store/3d- ... gIlcfD_BwE

[raj]

@ Jonnynet.

The same principle as variously explained throughout this thread, except the large wheel (flywheel) has now been replaced by a simple SEESAW, rotable 360 degrees, with identical heavy weights on each ends.

Raj

[jonnynet]

I'm very sorry, Raj. Just read through the whole thread, which is something I've unlearnt somehow. Usually I open BW.com, check for anything new only by skimming some of the latest posts, especially looking for drawings that I hope to understand without reading the author's information. A habit that came in useful over the time, due to long conversations not being rich in content about what is crucial to find the BW secret.
Finally it's the laziness to read foreign language.
Well, I still try to build my own simulation for posting that I announced which takes more time than expected, but now feel ready to do some additional simulations of your design. Whatever the results are, it's quite interesting and important to play with if we want to find something. To have success building a working gravity wheel needs a mind that cannot be open enough, saying it exaggerated.

[jonnynet]

Here's my basic setup of your principle:

https://www.youtube.com/watch?v=3T-CmZhEsb0

Flywheel is set to 8 lb of mass, pendulum weights to 2 lb each. Connection rods have the same length. I release the wheel's brake at the top, then give it a push. Operation as expected. Now it's time to vary some parameters. Personally I miss the third kingdom in this configuration, as Fcdriver has hinted :)

[raj]

Your linkage is completely wrong.

See my set of drawings on page 8 that ME (Marchello) used, for his gif animation.

Thank you for your effort, anyway.

Raj