Free Gravity Rolling 06...

[iacob alex]

    ...at :   www.geocities.com/iacob_alex/Some_Drafts/text018.jpg

       The "green" plays eccentric mass.

       The  "blue" is engaged to store (long time charge-short time discharge)  rotational inertia : a weighted rim.

                     All the Bests ! / Alex   

[iacob alex]

       Hi P-Motion!

  The topic here is about "Free Gravity Rolling 06..."

  About your idea...I try to understand  it(it's not quite easy),but why you don't open a separate topic,so that the people can focus and help you,maybe.

             All the Bests! / Alex

[iacob alex]

      Hi P-Motion !

  I saw your drafts at Bessler Wheel's "Albums".

  It can a good starting point,because you think in a "less is more" style.

  About the last design,here (three arms...) intended as a self-rooling hoop,for this moment it appears to me a little "misty"...and maybe for you,alike any first idea.Try to evolve it.

  If you read the topic "Wheel vs. lever" ,at this forum also,I hope you will simplify your design:two arms,only.

  Regarding your suggestions (to add a "flywheel" or "2 counter-weights" ),take a look at the serial (01...06).

  About the dimensions,mathematics...an experiment with a so simple configuration is more conclusive and reliable.

  Sorry,that for the moment,I can't make some tests (I am living in a rent house,without the facilities of "garage people").

  So,take a rest(as you said...),and when you feel the desire for the next step,make it!

        All the Bests! / Alex

[iacob alex]

    Hi P-Motion !

So,in my opinion,we don't need more than two spokes for any design of a possible PM.

Why?

Because the key to "unlock" the self motion is a greater gravity impulse (p=m*v=m*g*t ).

Here,the only variable(that people forget...) is the TIME FACTOR .

If we materialize in some manner the gravity fall,as a real flow ,we can induce,give rise to an ever increasing gravity impulse .

The gravity impulse is  collected in the form of an inertial impulse:gravity dynamics turns into inertial dynamics.

Gravity impulse is generated by the ever increasing (accelerated) torque difference...if we let it fall enough time.

The inertial impulse can  be stored as a rotating mass (hub or rim).

In a certain view,as we bounce a ball in two "worlds"(fall down in gravity, becomes rise up in inertia...but really is a simple transfer of momentum).

So,if we have a sufficient level of rotational inertia,we can use a part of it to "jump-up" the long arm-short arm configuration,and you know...this is the "self-motion".

The succession in time is:long gravity fall(and charge of rotational inertia),then short gravity rise(and discharge of rotational inertia).

         All the Bests !/ Alex

[iacob alex]

        Hi P-Motion !

   If you want to verify the feasibility of your idea,you have two possibilities:

     -on paper

     -in reality

   On paper,you need to take into account,step by step,the position of the CoG's projection (vertical line) and the fulcrum.

   The fulcrum is simply ,a temporary (moving on a line)  point-contact between the rolling device and the way(horizontal line).

   The CoG's projection is simply,also a temporary(moving on the same line) point.It "expresses" the torque...

    Here you must mesure the distance between two points on the same horizontal line,

    If the CoG's projection-point remains on the same side of the fulcrum's point...you need no calculus.

    In this situation ,your design can work  as a "self".

    If the CoG's projection-point moves to and fro ,face to fulcrum's point,you need to make some simple algebra: to add  positive torque with negative torque .But this a static calculus (weighting machine type),not a dynamical one.

    In this situation ,you have no confidence that your design will work as a "self'.
    .
    But a real test is more conclusive...

                                    All the Bests! / Alex