Speed doubler?

[raj]

Constructing my Desktop Swinging Weights Toy Wheel requires my concept design to change slightly to make it easy.

The vital part of the concept has to be maintained,that is the Speed Doubler mechanism and the swinging weights.

I find that two weights could be sufficient to obtain rotation of wheels, but four or more weights would give better results.

The other problem is how to reduce FRICTION to the minimum.

In the drawing there is ONLY one THIN axle(2) for Flywheel(1), with a large hub(3. This should reduce axial friction.

The two speed doubler wheels(4 and 6)are geared to hub(3) by string belts and do not have any axle or hubs and are are stabilized by the tension on the string belts by their masses, reducing friction.

There is ZERO sound, knocking or scraping of any kind, that could cause loss of energy.

The torque producing MOTIOn of the weights is as described with my previous drawings.

There is ONE PLUS with this drawing: Torque does not depend on the rotation of flywheel(1), but rather on the weights swinging on the two speed doubler wheels.

But whenever the speed doubler wheel rotate, the flywheel will rotate twice as fast, because of the wheels gearing system, thereby adding angular momentum to the whole wheel system.

Raj

[raj]

Of the several Double Speed wheel/s system I have come up with, in the last few months, I am please to announce that my final Desktop Swinging Weights Toy Wheel concept build based on my drawing above, to be completed before year-end.

I look forward to have all your best wishes, as I am coming to the end of my wheel search.

Raj

[Wubbly]

Deleted.
Apparently you can't attach AVI files even though the system pretends you can.

[raj]

This afternoon I used Physion software to make a simulation of my freshly refined large wheel and small wheel rolling separately on a single axle with only two weights diametrically on wheels.
The wheels self started slowly at first and gained some speed afterwards and I am presently sitting down in my bedroom, watching on my laptop, the wheels still turning for the past two hours.

The wheels are maintaining their speed with an average 8/9 rpm.
It looks as though the wheels won't stop.

Surely there must be something wrong with Physion.

I'll be posting a 10 minutes video of the simulation on youtube in a day or two.

Raj

[silent]

.

[raj]

Wheels still turning after three hours.
Stopping simulation now.
It's bed time.

Raj

[ME]

I dunno, but I thought you fiercely mistrusted simulators?

But for typical simulator situations:
It may be primed with extra potential energy, as placing things symmetrically are the easiest to create... then at startup it may settle while adding some velocity to the system and from there acts like a flywheel... and go on forever.

As it should accelerate until it reaches some kind of equilibrium, it may be hard to tell if that's currently the case.
When it does not accelerate, it will just decelerate because of friction.
So when it accelerates, it should be able to overcome the inevitable friction or maybe it even indicates some energy can be tapped.

To test, you could:
- Check with air resistance. (usually the easiest test)
- Stop the animation; let the situation settle; reset all velocities; re-run (as if you stopped it by hand)
- etc...

Let's hope it accelerates

[raj]

Yes, Marchello, I do really mistrust simulation software.
The reason is simply how the algorithm of the software has been written is kept secret, for me or anybody else to check to verify its validity openly.

I don't know how to use the right physics parameters, to obtain the true physical simulations of my concepts, using any simulation software, because I don't know physics.

I only use Physion simulation software, now and again, because all I do is draw my concept on/with Physion, just like drawing on graph paper, and press on play, to see your drawing/wheels in motion in 2D.

This is exactly what I did yesterday. I never check physic parameters that were being input to simulate my concepts.

I have just now check the parameters that have been used by Physion to simulate my concept.

Here is what I found:

Physics World:

Gravity
X=0
Y=-10

Step Frequency
60Hz

Iterations
velocity=8
positions=8

Warm Starting - (ticked)
Continuous Physics - (ticked)

These parameters can be changed, increased or decreased,
Unfortunately, I can't make any rightful change, because I don't know physics.

Perhaps you or someone else could give me the right parameters to input in my Physion simulation, to validate my wheel concept.

Raj

[ME]

Secret?...unfounded assumptions on things unknown.
Besides, how things work in reality is also "kept secret", that's why Science was invented in the first place: To check, and to find out.

I could try to explain open-source libraries.... but let's not.



While the application settings should be explained in some manual, it's perhaps best to ask yourself this question:

• How was the design supposed to work and what is considered its potential before you used that program?

When you "just know", then the next question will be:

• How can you check and verify your own gut feeling?

- What kind of values do you need, so you can check one situation against the other?
- What is the quickest way;
- What is the simplest way;
- What is the way that gives you the most confidence;
- Can these be combined;
- Is there a way to handle any kind limitation and still find out;
- etc.

Perhaps, despite the easy set-up, you may conclude that this simulator is not the quickest, simplest and best way for you.

Good luck.

[raj]

Pppprrreeeeaaaacccchhhheeeerrrr..... follows what he preaches!!!!!!!!!!!!!!!!!!!!.

[WaltzCee]

RTFM?

[ME]

follows what he preaches!

Ehm, not really..

Perhaps you or someone else could give me the right parameters to input in my Physion simulation, to validate my wheel concept.

I just don't understand why you use that simulator when you are perfectly capable of tinkering better ways to validate your wheel concept.

But be my guest to keep staring at Newton's first law of motion on your computer screen the whole day long, and be both disgusted by the "secrets" that makes it go yet be inspired by your own brilliancy.

RTFM?

Eehm, maybe?
It's one way to get more informed..

[WaltzCee]

Everyone knows that Al Gore invented the internet but a
lesser known fact about Al is he's the one that developed
the instruction set the earlier computers used. It has a
certain twerk to it, they called it the Al Gore rhythm.
The name stuck.

A few actuators properly placed and there's no reason why Raj's
wheel shouldn't be twerking like a 2 bit ho on a Saturday night.