Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant  (Read 823136 times)

Cloxxki

  • Hero Member
  • *****
  • Posts: 1083
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1290 on: May 08, 2009, 11:44:54 AM »
Hello,

What did you think of this one ?
Hi Obelix,
I for one, like it as an idea
However, which speed ratio would you suggested for the tower vs. the outer wheel?

For instance, Vwheel = 1, then Vtower=1 for smooth transitions might be troublesome, as vertical lift is 57% faster than the weights average downward speed. Only exactly at 3 o'clock can the wheel match that.

I would rather amend this setup to let the weight on top roll to the side first (losing zero height), and doing work on a wheel with much larger radius, its axle positioned well to the left of the tower.
Still, I doubt that torgue would be able to over come the slight height loss each revolution. Could the tower be geared up to have fewer weights to lift? I doubt it.

exnihiloest

  • Hero Member
  • *****
  • Posts: 715
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1291 on: May 08, 2009, 01:10:08 PM »
...Instabilities in the numerical solving of differential equations (difference equations, rather) are a well known problem among others and it appears wm2d suffer from such problems to an unacceptable extent.

I agree it is quite easy to modelize a perpetual motion with WM2D due to inaccuracies in numerical solving.
But in this thread we have a reverse problem.
We try to modelize a said perpetual motion in WM2D and it doesn't work.





Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1292 on: May 08, 2009, 02:47:20 PM »
@exnihiloest,

Quote
We try to modelize a said perpetual motion in WM2D and it doesn't work.

That isn't as clear as you put it.

spinner

  • Sr. Member
  • ****
  • Posts: 410
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1293 on: May 08, 2009, 04:29:36 PM »
OMG...
This thread is still alive?
And... there are still people who believe this Abeling stuff could really work?

Ahhh... :'(

mondrasek

  • Hero Member
  • *****
  • Posts: 1301
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1294 on: May 08, 2009, 04:35:53 PM »
As for the calculations, I think it'd be interesting to see your methodology first so I'd be curious to see calculations done the way you can do them for the moment.

Well here is an analysis of the sim with the hockey stick design.  I let it run in WM2D with extremely low time steps and integration errors with object frictions turned off but air resistance on low until it settled.  Once it found it's balance point I saved the file out as a DXF and imported into AutoCAD.  As I stated before, the DXF output of WM2D does not allow for the ellipses of the guides to come in to AutoCAD properly.  Instead it imports diamonds that have their corners on the major and minor axis end points for the ellipses.  I drew new ellipses using these corner points, but keep in mind that the ellipse shape in AutoCAD is slightly different than in WM2D.  I then moved the weights into the proper positions in these new guides and used AutoCAD to perform some vector calculations.

I first drew a line in each weight from the center to the bottom of the spheres.  This line is exactly 10 units long and represents the weight vector.  I then drew lines from the center to where the sphere contacts the wheel slot and the guides.  These are used to find the length of the force vector being applied to the wheel slot.  A line of this exact length was then transferred to where the ball is in contact with the wheel slot.  A line is drawn from the center of the wheel to this same point and is dimensioned to show the exact distance that this vector is acting on the wheel from the axle (torque distance).  Drawing a line from the end of the ball force vector perpendicular to this line gives a line (vector) that is the amount of force acting to create torque on the wheel due to this ball.  So now we just need to multiply the distance times the length of this vector and add them up.  This length was also dimensioned by AutoCAD so both the force and the distance are to the precision of a modern CAD system.  If you start with the weight at approx. 1 o'clock and go clockwise calling each torque that results in CW motion + and each that results in CCW motion - you will get:

+1334.4
+3658.8
+3934.5
+540.7
-2335.1
-1779.4
-2165.7
-3117.8
Total = 70.4

This is as balanced as I can get with this analysis.  I believe the reason the total is not exactly zero is easily explained by the fact that I had to substitute guides of slightly different shape (ellipses) and the obviously poor resolution of the DXF exports from WM2D.

The DXF file with the vectors and dimensions is attached.  Also, here is a screen shot of balls 5 and 6 for those who cannot view the DXF and are interested.

Thanks,

M.

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1295 on: May 08, 2009, 06:56:52 PM »
@modrasek,

Thanks for the analysis. Will have too look at it in a bit because it found me just in the process of writing a post which is sort of a continuation of the old “squeezed-cherry-stone” idea expressed here by @Cloxxki here http://www.overunity.com/index.php?topic=7150.1230
Quote
See? The two weights are attracting each other with the energy stored in the springs. The angle (like a surfer along the wind) converts this energy in "lift", rather than having it cancel out the two weights "chasing" each other vertically.
and in the link  @3decimal14 gave here http://www.overunity.com/index.php?topic=7150.1280.

The idea that it isn’t enough to consider that a body is at rest at a given spatial position in order to conclude what its behavior will be after being acted upon by a given force is interesting: The same applied force that would induce different displacement to that body (thus doing different work on the body) depending on whether or not the initial state of immobility of the body is due to static equilibrium or is due to two canceling equal but opposing forces acting on it.

Now, while the above is true we have to see how it can serve us in the aspect we’re discussing here. It will serve the goal we’re pursing in this thread if the forces in question exist naturally. If these forces are naturally existing then the energy which we expect to derive from the above (force over distance) would not come out of a pre-existing energy reservoir, which is exactly the goal this thread is all about.

It seems that the magic word for the achievement of the above goal is ‘constraints’.

Thus, if we let a weight go unobstructed from a given height h it will fall to the ground and when there all of its gravitational potential energy would’ve converted in equivalent amount into other energies (ultimately heat). If, however, that weight is attached to a string fixed to a pivot placed sideways at the same height h as the weight, two equal but opposing forces (centripetal-centrifugal) will be created which didn’t exist in the first instance.

Now, at this point we’re not asking how the weight has found itself at height h because there’s no evidence that it was only due to the energy of a pre-existing energy reservoir. We’ll see later where the energy to get the weight at height h came from and shouldn’t be assumed at this point that it came necessarily from a pre-existing energy reservoir. At this point we observe that the downward motion of the weight and the creation of the centripetal-centrifugal forces is due to the naturally existing force of gravity which isn’t derived from any pre-existing energy reservoir whatsoever.

Thus, so far we have the naturally existing opposing forces (centripetal-centrifugal) which the link @3decimal14 gave requires. We can now consider at once a device similar to that of Veljko Milkovic by which through spending of a very small amount of work, which if the weight is in static equilibrium would shift it at a very small distance, would in this case of “squeezed-cherry-pit” cause the creation of a force enough to restore the position of the weight at height h. We can keep doing this and in this way we will be creating excess energy discontinuously. The excess energy will be the difference between the gravitational potential energy of the object at height h and the energy necessary to move that same object when at static equilibrium. That’s all well and good. Discontinuous creation of excess energy in this way is another method of discontinuous excess energy creation in addition to the definitively proven way for its creation with the magnetic propulsor.

The question which arises now is can we find, constructively, constraints, which would substitute for the periodic external imparting of the small amount of energy, to cause the appearance of greater amount of energy and ensuring in this way continuous obtainment of excess energy? Is this what Abeling’s device is doing.


P.S. Stefan, while all that was said about the centrifugal force earlier is true I think @3decimal14 gave a link which adds a new interesting aspect to that discussion and may turn out to be useful in solving the problem of continuous obtainment of excess energy.

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1296 on: May 08, 2009, 08:22:23 PM »
@mondrasek,

I agree with the general methodology of you analysis. I would point out, however, that the torque should be calculated with respect to the center of mass which doesn't coincide w/ the center of the wheel. It will affect both the arm and the perpendicular to it weight component. Also, it should take into account eventually that the center of mass changes its position at different positions of the spheres for the same slots and track.

So, now, what is needed is to have this implemented into a program which would make all these calculations automatically and would in this way promptly come up with the comparison of the left-hand and right hand torques for the different configurations. Further, it would be good to have an 'planning of experiment' optimization program to explore as to whether or not there can be a favorable configuration with a non-zero difference between these left and right-hand torques. That would really bring about an answer which may be considered rigorous enough for a conclusion in this matter. Wonder if there wouldn't be a way to write a script in AutoCAD to do at least the first set of calculations (save the optimization part). I'd prefer the script to be in SolidWorks rather than in AutoCAD because the former seems more user-friendly. Anyway, I think you've done a good job.

EDIT: Too bad wm2d isn't open source to try to do these calculations right there. Wonder if there wouldn't be other programs available that could do the job. How about that Slovenian Frame2D? Has anyone had any experience with it?

mondrasek

  • Hero Member
  • *****
  • Posts: 1301
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1297 on: May 08, 2009, 08:38:05 PM »
I would point out, however, that the torque should be calculated with respect to the center of mass which doesn't coincide w/ the center of the wheel.

What?  The wheel is balanced except for the wieghts which are not attached to it.  The weights push against the balanced wheel exactly as calculated.  Also, rotation of the wheel can only occur around the axle.  Why would you calculate a torque around any other place?

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1298 on: May 08, 2009, 09:12:18 PM »
What?  The wheel is balanced except for the weights which are not attached to it.  The weights push against the balanced wheel exactly as calculated.  Also, rotation of the wheel can only occur around the axle.  Why would you calculate a torque around any other place?

Then, you have to take into account the mass inhomogeneity of the wheel itself. As for whether or not any construction will end up with a balanced wheel, that hasn't been resolved yet. I agree with the gist of your methodology, not with the generality of your conclusion. Like I said, it has to be explored further and I guess to write a program to efficiently do so won't be a problem for someone who does real programming (Fortran, C++, Assembler etc.) on a regular basis.

EDIT: Ignore the center of mass thing -- we're exploring an ideal wheel here which is perfectly symmetric and homogeneous. Friction is also ignored. And, you're right, rotation is about the pivot, not about anything else.

One thing needs explanation, though, and I worded it incorrectly implying that rotation should occur around something else, not the axis -- center of mass appears off center (of rotation) at all times, why should then there be an equilibrium position? Your calculations show equilibrium for your particular disposition of the parts.  How can that be reconciled with an off the axis (of rotation) center of mass, as is the case with the actual models?
« Last Edit: May 08, 2009, 09:42:18 PM by Omnibus »

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1299 on: May 08, 2009, 09:52:42 PM »
One would expect that equilibrium behavior would be when axis of rotation coincides with the center of mass. If center of mass (even if the track is removed to exclude it from the calculation), however, is at all times off of the axis of rotation, as in the wm2d models at hand, then no equilibrium should be reached at any time. What is puzzling, though, is that center of mass is always to the right of the axis of rotation and yet the wheel spins CCW.

Of course, the correct calculation (as a methodology, not as a final conclusion at this point) is the way @mondrasek has done it and it very well may be that wm2d is simply not calculating correctly the center of mass. This may be one warning sign as to the applicability of wm2d. Because, if the position of center of mass were correctly calculated that (its persistently being off-center) in itself would be a proof for the workability of the studied machines.

hansvonlieven

  • elite_member
  • Hero Member
  • ******
  • Posts: 2558
    • Keelytech
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1300 on: May 08, 2009, 10:05:47 PM »
One would expect that equilibrium behavior would be when axis of rotation coincides with the center of mass.

That is only one way to have equilibrium. However, an equilibrium state is achieved if the centre of mass is anywhere along a vertical line through the pivot. Unstable equilibrium above the pivot, stable equilibrium below.

Hans von Lieven

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1301 on: May 08, 2009, 10:07:58 PM »
That is only one way to have equilibrium. However, an equilibrium state is achieved if the centre of mass is anywhere along a vertical line through the pivot. Unstable equilibrium above the pivot, stable equilibrium below.

Hans von Lieven

That's true but in this case it isn't -- center of mass is persistantly to the right of the axis of rotation.

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1302 on: May 08, 2009, 10:20:42 PM »
The center of mass vs. axis of rotation calculation may be even a simpler way than @mondrasek's method to determine the workability of the studies devices. Like I said, if that center of mass is indeed always to the left of the pivot then the device is a perpetuum mobile beyond any doubt.

As a matter of fact that discrepancy (non-coincidence of center of mass and axis of rotation) is what attracted my attention to this, not so much seeing the wheel turn. We have to determine is that really the case or is some flaw in the way wm2d calculates center of mass.

hansvonlieven

  • elite_member
  • Hero Member
  • ******
  • Posts: 2558
    • Keelytech
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1303 on: May 08, 2009, 10:24:08 PM »
That's true but in this case it isn't -- center of mass is persistantly to the right of the axis of rotation.

That cannot be right because if it were you would have perpetual motion.

Hans von Lieven

Omnibus

  • elite_member
  • Hero Member
  • ******
  • Posts: 5330
Re: Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant
« Reply #1304 on: May 08, 2009, 10:25:36 PM »
That cannot be right because if it were you would have perpetual motion.

Hans von Lieven

Correct. That's why I still think we do have a perpetuum mobile.

We already have discontinuous production of excess energy definitively confirmed by the magnetic propulsor. Also, that "squeezed-cherry-pit" concept which Veljko Milkovic seems to utilize as well is likely producing discontinuously excess energy. What remains to be seen is how to make that production of excess energy occur continuously and Abeling's may be one solution.