BesslerWheel.com

Here it is inverted, with the elevator descending at constant rate instead of rising - arguably the more interesting direction: https://i.ibb.co/N3mHQqH/fig4.gif ..15.69 J of GPE in the moving frame converting to a 71.7 J KE rise in the absolute frame. Bob, on the ground, basically sees 4.5x more en...

Some years ago i investigated the possibilities for lifting and dropping the point of application or suspension of a weight, rather than the weight itself, finding and concluding that no work is actually done unless the weight changes height, hence terminating that particular avenue of inquiry. Late...

Still mulling how best to try this, but have realised an additional feature that might be worth implementing - a variable fulcrum or leverage ratio, so that ie. 1 kg can be balanced against 4 kg having one-quarter the displacement or whatever. "One pound can cause the raising of more than one p...

Here's a kind of split Roberval balance: https://i.ibb.co/1GqbgfQ/fig1.png The two grey plunger-weights turn cranks counterposed via a conrod (green system). Although the conrod is a linear actuator, it's currently at fixed length for now. The masses of the two plungers are exposed with input variab...

Might just have finally killed it; i re-used the k-motor integral when replacing it with a spring by simply changing the constraint number over. The X and Y axes had been inverted however to take account of the relative motor direction. That was fine when it was measuring the motor, but when i chang...

Didn't work - sim attached but it's bare-bones and not worth more time. The gain condition thus isn't simply sinking counter-torques to CF force, at least, not in this way. I suspect that interaction between translational and rotational components is critical - ie. weight moves left so wheel is disp...

Here's a preview of what i have in mind: https://i.ibb.co/TvnYMp1/Basic-Jig.gif ..so that's a wheel currently being turned by a motor to generate CF force, thus dragging the two masses outwards. You gotta squint to see it, but they're spooling off of a tiny central reel (small radius = high gearing ...

For this test i simply left the rotor 'priming motor' running, at its constant 1 rad/s set speed, whilst logging its torque * angle: https://i.ibb.co/HFmthF2/More-Win.gif dKE = 51.66266262 - 5.69647122 = 45.9661914 kiking spring Ta = -19.47433519 wheel spring Ta = 24.96669587 rotor motor Ta = 1.3063...

Currently, the CF-PE is constrained by the radius of the free rotor the weight's attached to. Suppose instead that the CF-PE is delegated to a pair of balanced radially-sliding weights; as these are pulled outwards under CF force, they tug on a cord.. the cord spools off of a small-radius reel, spin...

Realising that the wheel spring preload was supposed to be in radians rather than degrees, i switched it down to slightly less-aggressive values, and then swapped out the k-motor for another rotary spring: https://i.ibb.co/xHQzftt/Win.gif ..achieving similar efficiency to the semi-motorised CoP: dKE...

Damn - i honestly thought i'd nixed it. I was seriously in the 'relief' stage where you're just glad it's all over. Ah well, i needed the rest.. So i've just done that last experiment; here, the central motor is only used for priming the initial velocity, disabling after the first frame, and replace...

Just re-checked the CF version by replacing the k-motor with a rigid joint, and found unity at both a quarter-cycle and full cycle. So in the CF version at least, the gain is dependent upon the satellite motor. Unlike the sprung version. The quarter-cycle result was this: delta KE = 3.73210068 motog...

@Fletch - had a look, but accounting for dissipation is sketchy when it's constantly in flux; both disc and ring can bounce and skip somewhat, the latter apparently moreso, dissipating GPE to collisions rather than conversion to rotKE. Even when dissipation rates are constant, such as applying a dam...

Well i'll spare everyone the pointless anims, but replacing the central motor with a pre-loaded spring kills the effect, scoring perfect unity. However, unlocking the 'world' mass from the background and measuring the torques being applied to it, the negative torque curve being plotted by the motoge...

Just a suggestion to check against when you have the inclination .. a spring in WM is a "perfect spring" afaik i.e. it is not realistic in some regards in that it has perfect elasticity with no dissipative energy losses to heat, sound, friction, or deformation of the structure like a real...