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Author Topic: Wheel vs. lever...  (Read 24996 times)

iacob alex

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Re: Wheel vs. lever...
« Reply #45 on: November 06, 2023, 01:45:19 PM »
  Hi !
  Take a Look at a up-down hinge (rising butt hinges for door ):
  https://www.doorstuff.co.uk/item/594/3900-rising-butt-hinges
  You can add/play as a wheel concept ( Maillardet…):
  www.energythic.vom/view.php?node=264
  …or with a simple test , as a lever and up-down hinge concept :
  www.geocities.ws/iacob_alex/Some_Drafts/text021.jpg
  Al_ex
   

iacob alex

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Re: Wheel vs. lever...
« Reply #46 on: November 06, 2023, 03:09:22 PM »
  Hi !
  Take a Look at a up-down hinge (rising butt hinges for door ):
  https://www.doorstuff.co.uk/item/594/3900-rising-butt-hinges
  You can add/play as a wheel concept ( Maillardet…
  https://www.energythic.com/view.php?node=264
  …or with a simple test , as a lever and up-down hinge concept :
  www.geocities.ws/iacob_alex/Some_Drafts/text021.jpg
  Al_ex
 

norman6538

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Re: Wheel vs. lever...
« Reply #47 on: November 06, 2023, 03:26:22 PM »
Thanks, I love that door closer hinge. And with leverage one does not notice any closer/spring resistance. Thinking how to apply that to this.

Norman

iacob alex

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Re: Wheel vs. lever...
« Reply #48 on: November 06, 2023, 03:54:22 PM »
…..take a look at : www.geocities.ws/iacob_alex/Some_Drafts/untitled016.JPG
                           www.geocities.ws/iacob_alex/Some_Drafts/text021.jpg

…..but playing the same up-down hinge idea (variable arm…).
     As a matter of fact , we can play a possible continuous gravity unbalance with minimum spare parts :
     -fulcrum/pivot
     -lever
     -one or two up-down hinges (one or two variable arms ).
    Al_ex
« Last Edit: November 06, 2023, 08:23:38 PM by iacob alex »

dxer_87

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Re: Wheel vs. lever...
« Reply #49 on: November 07, 2023, 12:03:57 AM »
Hi guys!

Very nice drawings Iacob. I once had calculations for gravity motor prove of work according to existing physics, I need to remake them again. In such calculations you divide motor in two sides. Then you calculate left momentum (torque) and right (according to forces and arms). The principle is that the right torque is always higher than left torque that creates difference (free force) to move the motor. All this energy comes from gravity and is possible due to right build.

All what You have drawn here is unbalanced mass which creates torque. You can do such calculations at your own for any gravity motor. If the torque is higher than friction than this will move perpetually.

iacob alex

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Re: Wheel vs. lever...
« Reply #50 on: November 07, 2023, 01:23:27 AM »
  Hi !
  Rising butt hinges are used to aid doors to SELF close …due to gravity..
  Rising butt hinges …if used in a “upside down” doors position aid them to SELF open…due to gravity,also.
  Rising hinges cause the door to rise around 10,5 mm over 180 degrees.
  We can use rising hinges for a wheel concept ( see Maillardet’s wheel with masselottes ).
  We can test the lever concept …if we add a rising hinge (only one !)…so , playing a lever with a single variable arm.
       Al_ex

norman6538

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Re: Wheel vs. lever...
« Reply #51 on: November 07, 2023, 12:11:22 PM »
I have have 3 embodiments of the Mallardet concept. Two arms and one wheel. And only one arm performs well - rotates 270 degrees. The geometry is a little different but I have added my own mass shifter that gravity sets and starts the rotation and gravity resets back to balanced.

In the unbalanced mode it acts like a pendulum that self resets at about 160 degrees.
As you know pendulums do not rotate 270 degrees.

I learned 20 years ago when I have something working "freeze it" as is and make another one. So today my goal is to get the 2nd arm working well so I understand what makes it perform well.

I have replicated the 270 degree rotation successfully. And expect to get it on YT tomorrow.
It starts horizontal with a leaning stick holding it steady and ready to start when the camera is ready. Then I kick the stick out so no one can accuse me of adding to the rotation. Then gravity shifts the weight and it rotates past 6, 9, 11 up to noon.
and then comes down and rocks like a pendulum.
 
So were did that 90+ degrees of rotation come from.
It may have some Skinner effect as seen here
https://youtu.be/rxIRaJlTD4Y?t=9



Norman
« Last Edit: November 07, 2023, 11:59:26 PM by norman6538 »

kolbacict

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Re: Wheel vs. lever...
« Reply #52 on: November 07, 2023, 02:20:32 PM »
I learned 20 years ago when I have something working "freeze it" as is and make another one. So today my goal is to get the 2nd arm working well so I understand what makes it perform well.
No. I had also something ten years ago. I do not return this something,because I am afraid that it will be simple reason for my misconceptions. A simple reason why it could work without breaking the laws of physics.  I want to believe in a dream. At least it was honest.

norman6538

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Re: Wheel vs. lever...
« Reply #53 on: November 08, 2023, 03:14:15 AM »
The YT video is here and is described.

https://youtu.be/aIEWDBVV2Jg

Norman

thx4

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Re: Wheel vs. lever...
« Reply #54 on: November 08, 2023, 09:29:21 AM »

iacob alex

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Re: Wheel vs. lever...
« Reply #55 on: November 08, 2023, 03:04:32 PM »
     Hi  thx4 !
 If we correlate our image/design with phenomenon ( gravity potential and rotational inertia…v=gt and KE )  , increasing the radius/gravity potential …can we manipulate so easy a self reset  on the top position ! ? Maybe…if you take a look at :
     www.geocities.ws/iacob_alex/Some_Drafts/text045.jpg
 Without a proof/test , this is for the moment a confusion or an uncertainty about what is happening ,only ?
 Simply : if we make it bigger ?
     Al_ex

kolbacict

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Re: Wheel vs. lever...
« Reply #56 on: November 08, 2023, 07:16:08 PM »
https://www.youtube.com/watch?v=vr0z2huKaCI&t=339s
Why don't they use this principle for drones? And for carrying small loads ?
Birds spend less energy to move the same load over a given distance.