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Force multiplier
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electrodacus:
Have not seen this particular one before but is basically the same setup as mine even the hardware is the same.
What you see there is stick slip hysteresis and energy storage. The front wheel slips else it will not work and by not work I mean wheels will not rotate and vehicle will move in the direction of applied force. 
electrodacus:

--- Quote from: Nominal Animal on February 08, 2023, 03:06:31 am ---Kinematics is physics, even though some call it geometry of motion.  It is the appropriate level of complexity for analysing mechanisms like these.

You do not model forces until you need to consider things like friction and acceleration.  Using only a subset of forces to try and describe a mechanism is an error.  OP's evocation of Newton's laws of motion is a straw man, because A) they are not relevant for the analysis of the mechanism behaviour at this level of complexity (ignoring friction and losses, assuming perfect traction, steady state operation with no acceleration), and B) OP has picked an arbitrary subset of forces that do not describe the system at the level of complexity where those laws would apply, i.e. their "model" does not sufficiently describe the systems at hand.

For an example of an analysis where a complete set of forces would be used, would be to assume the entire system at rest at initial time \$t = 0\$, and then integrate the equations of motion to find out whether the vehicle would accelerate or slip, when some specific (usually constant) force is applied to the paper or blue surface.  Both static and dynamic forces would need to be modeled, both linear and angular, as well as linear and angular momentums.  Again, picking an incomplete subset that happens to support your pet theory isn't physics or science, it is just an error.

--- End quote ---

If you want the definition here it is:
"the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion."

How will you describe what happens in the first 15 seconds of this video? https://odysee.com/@dacustemp:8/stick-slip-removed-from-front-wheels:0

In order for an object to move at constant speed when there is friction (always present in real world) a net force is required pointing in the direction that the object moves.
If an object can not move in the exact opposite direction of the applied force unless as it is the case here energy storage is used.

Not only what I say is true but I have demonstrated every single detail with real world tests.
IanB:

--- Quote from: electrodacus on February 08, 2023, 03:07:49 am ---Have not seen this particular one before but is basically the same setup as mine even the hardware is the same.
What you see there is stick slip hysteresis and energy storage. The front wheel slips else it will not work and by not work I mean wheels will not rotate and vehicle will move in the direction of applied force.

--- End quote ---

But it is working exactly the same as the geometrical model below.  Where is the stick slip hysteresis and energy storage here, since the geometrical model has neither of those, yet it still moves as shown?

electrodacus:

--- Quote from: IanB on February 08, 2023, 03:20:01 am ---
But it is working exactly the same as the geometrical model below.  Where is the stick slip hysteresis and energy storage here, since the geometrical model has neither of those, yet it still moves as shown?



--- End quote ---

There are no forces involved in your model. Just take a slow motion video of the real thing and you will see the exactly same thing as in my slow motion video and that is generator wheel will rotate while the vehicle and output wheel do not move.
Then only when that input wheel slips so the friction loss instantly drops the vehicle starts to move accelerated by the stored energy.
The stored potential elastic energy gets converted in to vehicle kinetic energy. Since in real world there still is friction vehicle will slow down so charge and discharge cycles need to repeat many times each second to maintain the vehicle at some average speed.
Vehicle speed is not constant due to charged discharge cycles but you will not be able to see unless you take a high speed video of the device and slow it down.
jonovid:
perpetual motion machine :clap:

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