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(December 19, 2006, 11:27:19 PM)
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Author Topic: Simple Devices & Experiments In WM2D  (Read 15879 times)

Offline Gregory

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Re: Simple Devices & Experiments In WM2D
« Reply #15 on: October 09, 2006, 07:52:04 PM »
I can't post an animation, because Wm2d crash when I try to make one.
But here is some pictures show the process step by step.
Hope I helped.

Greg

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Re: Simple Devices & Experiments In WM2D
« Reply #15 on: October 09, 2006, 07:52:04 PM »

Offline inroades

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Re: Simple Devices & Experiments In WM2D
« Reply #16 on: October 10, 2006, 10:38:07 PM »
   Hello Greg,
  What a great job you did, thank you very much. I ran the clips in a slide show and that produced pretty good animation. I downloaded a sample version of the program and played with dropping a ball at different rpm and you are correct that rpm, ramp angles, weight release timing will be hard to manage. I had a thought to include on the top side a magnet to help overcome some of the lower ramp friction, just as the weight is released from the inside position it could slide past an opposing magnet to gain a little push in addition to the power ramp. 
     Please feel free to add any advice/counsel to the project as it is much needed and welcome.
     Thanks again
     Dale

Offline Tinhead

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Re: Simple Devices & Experiments In WM2D
« Reply #17 on: October 12, 2006, 12:14:35 AM »
I can't test it at higher Rpms because the WM2D has problems with collision at higher rpms, usually simply ignores the collision. I can be very angry in these situations. ;)
But weight return with greater force at higher rpms, sure.

You have to change the simulation settings. Go to menu "World" -> "Accuracy". There turn off the automatic option for animation step and integration error and use your own settings. Normally I run my sims with an animation step of 0.01 seconds, if crucial even less. THe integration error depends on the average size of your parts. My test wheels are on avarage 1 meter in diameter, there I use a value of 0.1mm to run it. Calculation will be slow, but the result will be better.

Cheers,
Rainer

EDIT
Me again, Hi Greg & Gregory  :)

just a question in regard to the simulation pictures you posted. Is the collision turned on between the green ramp and the green weight?
If so your settings might be too rough, on the pictures I can see how the weight overlaps the 'cage' that surrounds it and how it moves into the ramp before it gets swung up.

If that is the case you can't trust the simulation results at all. The interference seen will result in a much larger repelling force than you could expect in real life. Even so it is a simulation, the participating objects should not overlap. If they do, as mentioned above, you have to change the settings.

Cheers,
Rainer
« Last Edit: October 12, 2006, 12:40:22 AM by Tinhead »

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Re: Simple Devices & Experiments In WM2D
« Reply #17 on: October 12, 2006, 12:14:35 AM »
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Offline Gregory

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Re: Simple Devices & Experiments In WM2D
« Reply #18 on: October 12, 2006, 03:57:44 PM »
Hi Tinhead,

Thanks for the advice, it was helpful. :)
Me stupid... Now I see how can I set the options to get a correct result for the collision, and everything.
Unfortunately, I don't like to wait much for such a simulation, but now I learnd sometimes patience is crucial... Maybe for my best designs...  ;)

Yes, only the green weight allowed to collide with the green ramp, nothing other.

Anyway, the thing works almost the same with much higher accuracy, I tested.
I quickly tested it again at 30 rpm. The velocity dropped a little bit more, but gained back.
I think it is not easy to replicate something like this in reality.


Dale,

I had to change the spring force at 30 rpm.
The spring force must be designed for Rpm (and weight mass), because at higher Rpms, the centrifugal force is also higher, which mean you need a stronger spring to return the weight to the inner position.
Things must be match correctly. I think it can be problematic to build something similar in reality, even more if you operate with higher Rpms. Please be very careful if you build such a "crazy" thing (;D), it can be really dangerous when you drive it at high Rpms.

Greg

Offline inroades

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Re: Simple Devices & Experiments In WM2D
« Reply #19 on: October 14, 2006, 06:57:55 PM »
    Hello Greg
 I will be very careful, high rpm could give new meaning to a free weight room. ;D
   Thanks again
    Dale

Free Energy | searching for free energy and discussing free energy

Re: Simple Devices & Experiments In WM2D
« Reply #19 on: October 14, 2006, 06:57:55 PM »
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Offline alan2here

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Re: Simple Devices & Experiments In WM2D
« Reply #20 on: November 04, 2006, 01:02:53 PM »
bear in mind wm2d can create OU verry easely, even if you turn all the frictions and resistances on.

Offline Gregory

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Re: Simple Devices & Experiments In WM2D
« Reply #21 on: November 04, 2006, 07:43:41 PM »
Hi alan2here!

Good to hear... Can you show one without the curved polygon bug, and without electrostatics and "faked magnets"?

Thanks,

Free Energy | searching for free energy and discussing free energy

Re: Simple Devices & Experiments In WM2D
« Reply #21 on: November 04, 2006, 07:43:41 PM »
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Offline Dingus Mungus

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Re: Simple Devices & Experiments In WM2D
« Reply #22 on: May 14, 2007, 01:42:58 AM »
Example of MTY engine...
I'll be adding valves and distributor later...

Enjoy ripping it apart!
~Dingus

Offline Dingus Mungus

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Re: Simple Devices & Experiments In WM2D
« Reply #23 on: May 14, 2007, 09:03:42 AM »
Minor design change and presto!
No need for valves!
Still going to add a distributor set though.
ONLY 6 MOVING PARTS SO FAR!!!

~Dingus

Free Energy | searching for free energy and discussing free energy

Re: Simple Devices & Experiments In WM2D
« Reply #23 on: May 14, 2007, 09:03:42 AM »
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Offline FreeEnergy

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Re: Simple Devices & Experiments In WM2D
« Reply #24 on: May 14, 2007, 09:04:30 AM »
Minor design change and presto!
No need for valves!
Still going to add a distributor set though.
ONLY 6 MOVING PARTS SO FAR!!!

~Dingus

this is awesome! wow! brilliant! outstanding idea! lol  :o

Offline Dingus Mungus

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Re: Simple Devices & Experiments In WM2D
« Reply #25 on: May 14, 2007, 09:22:39 AM »
Minor design change and presto!
No need for valves!
Still going to add a distributor set though.
ONLY 6 MOVING PARTS SO FAR!!!

~Dingus

this is awesome! wow! brilliant! outstanding idea! lol  :o

Thanks!

But I can't take much credit for it... This is a replication of the mechanics of the MYT engine developed by Raphial Morgado @ Angel Labs LLC.

<a href=http://www.angellabsllc.com/>Angel Labs website</a>
<a href=http://www.youtube.com/watch?v=kGlUZg2pC0Q>Car Show Demo Video</a>
<a href=http://www.youtube.com/watch?v=zqSIq39TMNM>Video discription of Engine</a>

Thanks for looking!
~Dingus

Free Energy | searching for free energy and discussing free energy

Re: Simple Devices & Experiments In WM2D
« Reply #25 on: May 14, 2007, 09:22:39 AM »
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Offline FreeEnergy

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Re: Simple Devices & Experiments In WM2D
« Reply #26 on: May 14, 2007, 09:27:21 AM »
this is really sweet! very unique indeed. good job on the replication.

peace

Offline Dingus Mungus

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Re: Simple Devices & Experiments In WM2D
« Reply #27 on: May 18, 2007, 02:56:42 PM »
Inertial Drive System:
I'll update the info here this weekend.
Too tired right now...

 

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